From 98ffc1bfeb04fb04b7f18f1cbfccf1e43d6a867f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20K=2E=20H=C3=BCttel?= <dilfridge@gentoo.org>
Date: Tue, 11 Jun 2024 23:34:54 +0200
Subject: Convert to autoconf 2.72 (vanilla release, no distribution patches)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As discussed at the patch review meeting

Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
Reviewed-by: Simon Chopin <simon.chopin@canonical.com>
---
 sysdeps/aarch64/configure                          | 155 +++++++-------
 sysdeps/arc/configure                              | 120 +++++------
 sysdeps/arm/configure                              | 146 +++++++------
 sysdeps/hppa/configure                             |   7 +-
 sysdeps/i386/configure                             |   7 +-
 sysdeps/ieee754/ldbl-opt/configure                 |  12 +-
 sysdeps/loongarch/configure                        |  33 +--
 sysdeps/mach/configure                             | 229 +++++++++++----------
 sysdeps/mach/hurd/configure                        | 133 ++++++------
 sysdeps/mips/configure                             | 120 +++++------
 sysdeps/nios2/configure                            | 120 +++++------
 sysdeps/powerpc/powerpc32/fpu/configure            |  14 +-
 sysdeps/powerpc/powerpc64/configure                |  14 +-
 sysdeps/powerpc/powerpc64/le/configure             |  55 ++---
 .../powerpc/powerpc64/le/fpu/multiarch/configure   |  12 +-
 sysdeps/riscv/configure                            |  15 +-
 sysdeps/s390/configure                             | 103 +++++----
 sysdeps/s390/s390-64/configure                     |   7 +-
 sysdeps/sparc/sparc32/configure                    | 127 ++++++------
 sysdeps/unix/sysv/linux/configure                  |  17 +-
 sysdeps/unix/sysv/linux/loongarch/configure        | 112 +++++-----
 sysdeps/unix/sysv/linux/mips/configure             | 191 ++++++++---------
 sysdeps/unix/sysv/linux/powerpc/configure          |  24 ++-
 .../unix/sysv/linux/powerpc/powerpc64/configure    | 148 +++++++------
 sysdeps/unix/sysv/linux/riscv/configure            | 114 +++++-----
 sysdeps/x86/configure                              |  28 +--
 sysdeps/x86_64/configure                           |  40 ++--
 27 files changed, 1066 insertions(+), 1037 deletions(-)

(limited to 'sysdeps')

diff --git a/sysdeps/aarch64/configure b/sysdeps/aarch64/configure
index 9606137e8d..4bd5496a4a 100755
--- a/sysdeps/aarch64/configure
+++ b/sysdeps/aarch64/configure
@@ -14,14 +14,14 @@ printf "%s\n" "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
 # the dynamic linker via %ifdef.
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -35,13 +35,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -50,14 +51,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -65,35 +66,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_GREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
   fi
 else
-  ac_cv_path_GREP=$GREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
 
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -107,13 +97,14 @@ do
     for ac_prog in egrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -122,14 +113,14 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -137,32 +128,33 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
-  ac_cv_path_EGREP=$EGREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-
-   fi
+ ;;
+esac
+fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf "%s\n" "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5
 printf %s "checking for big endian... " >&6; }
 if test ${libc_cv_aarch64_be+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __AARCH64EB__
                       yes
@@ -170,14 +162,16 @@ else $as_nop
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "yes" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "yes" >/dev/null 2>&1
 then :
   libc_cv_aarch64_be=yes
-else $as_nop
-  libc_cv_aarch64_be=no
+else case e in #(
+  e) libc_cv_aarch64_be=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_be" >&5
 printf "%s\n" "$libc_cv_aarch64_be" >&6; }
@@ -199,8 +193,8 @@ printf %s "checking for BTI support... " >&6; }
 if test ${libc_cv_aarch64_bti+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-    cat > conftest.c <<EOF
+else case e in #(
+  e)   cat > conftest.c <<EOF
 void foo (void) { }
 EOF
   libc_cv_aarch64_bti=no
@@ -225,7 +219,8 @@ EOF
   then
     libc_cv_aarch64_bti=yes
   fi
-  rm -rf conftest.*
+  rm -rf conftest.* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_bti" >&5
 printf "%s\n" "$libc_cv_aarch64_bti" >&6; }
@@ -246,8 +241,8 @@ printf %s "checking if pac-ret is enabled... " >&6; }
 if test ${libc_cv_aarch64_pac_ret+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-    cat > conftest.c <<EOF
+else case e in #(
+  e)   cat > conftest.c <<EOF
 int bar (void);
 int foo (void) { return bar () + 1; }
 EOF
@@ -267,7 +262,8 @@ EOF
   then
     libc_cv_aarch64_pac_ret=yes
   fi
-  rm -rf conftest.*
+  rm -rf conftest.* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_pac_ret" >&5
 printf "%s\n" "$libc_cv_aarch64_pac_ret" >&6; }
@@ -282,8 +278,8 @@ printf %s "checking for variant PCS support... " >&6; }
 if test ${libc_cv_aarch64_variant_pcs+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-    cat > conftest.S <<EOF
+else case e in #(
+  e)   cat > conftest.S <<EOF
 .global foo
 .type foo, %function
 .variant_pcs foo
@@ -310,7 +306,8 @@ EOF
   then
     libc_cv_aarch64_variant_pcs=yes
   fi
-  rm -rf conftest.*
+  rm -rf conftest.* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_variant_pcs" >&5
 printf "%s\n" "$libc_cv_aarch64_variant_pcs" >&6; }
@@ -323,8 +320,8 @@ printf %s "checking for SVE support in assembler... " >&6; }
 if test ${libc_cv_aarch64_sve_asm+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.s <<\EOF
+else case e in #(
+  e) cat > conftest.s <<\EOF
 	.arch armv8.2-a+sve
 	ptrue p0.b
 EOF
@@ -338,7 +335,8 @@ if { ac_try='${CC-cc} -c conftest.s 1>&5'
 else
   libc_cv_aarch64_sve_asm=no
 fi
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_sve_asm" >&5
 printf "%s\n" "$libc_cv_aarch64_sve_asm" >&6; }
@@ -357,8 +355,8 @@ printf %s "checking for availability of SVE ACLE... " >&6; }
 if test ${libc_cv_aarch64_sve_acle+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-    cat > conftest.c <<EOF
+else case e in #(
+  e)   cat > conftest.c <<EOF
 #include <arm_sve.h>
 EOF
   if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fsyntax-only -ffreestanding conftest.c'
@@ -371,7 +369,8 @@ EOF
   else
     libc_cv_aarch64_sve_acle=no
   fi
-  rm conftest.c
+  rm conftest.c ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_sve_acle" >&5
 printf "%s\n" "$libc_cv_aarch64_sve_acle" >&6; }
diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure
index 7b27e26490..08e4f23f89 100644
--- a/sysdeps/arc/configure
+++ b/sysdeps/arc/configure
@@ -13,14 +13,14 @@ printf "%s\n" "#define ASM_LINE_SEP $libc_cv_asm_line_sep" >>confdefs.h
 # For big endian ABI, generate a symbol for selecting right dynamic linker
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -34,13 +34,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -49,14 +50,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -64,35 +65,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_GREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
   fi
 else
-  ac_cv_path_GREP=$GREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
 
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -106,13 +96,14 @@ do
     for ac_prog in egrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -121,14 +112,14 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -136,32 +127,33 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
-  ac_cv_path_EGREP=$EGREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-
-   fi
+ ;;
+esac
+fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf "%s\n" "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5
 printf %s "checking for big endian... " >&6; }
 if test ${libc_cv_arc_be+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __BIG_ENDIAN__
                       yes
@@ -169,14 +161,16 @@ else $as_nop
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "yes" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "yes" >/dev/null 2>&1
 then :
   libc_cv_arc_be=yes
-else $as_nop
-  libc_cv_arc_be=no
+else case e in #(
+  e) libc_cv_arc_be=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arc_be" >&5
 printf "%s\n" "$libc_cv_arc_be" >&6; }
diff --git a/sysdeps/arm/configure b/sysdeps/arm/configure
index 4ef4d46cbd..935e022c74 100644
--- a/sysdeps/arm/configure
+++ b/sysdeps/arm/configure
@@ -10,14 +10,14 @@
 # the dynamic linker via %ifdef.
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -31,13 +31,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -46,14 +47,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -61,35 +62,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_GREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
   fi
 else
-  ac_cv_path_GREP=$GREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
 
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -103,13 +93,14 @@ do
     for ac_prog in egrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -118,14 +109,14 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -133,32 +124,33 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
-  ac_cv_path_EGREP=$EGREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-
-   fi
+ ;;
+esac
+fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf "%s\n" "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler is using the ARM hard-float ABI" >&5
 printf %s "checking whether the compiler is using the ARM hard-float ABI... " >&6; }
 if test ${libc_cv_arm_pcs_vfp+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __ARM_PCS_VFP
 		      yes
@@ -166,14 +158,16 @@ else $as_nop
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "yes" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "yes" >/dev/null 2>&1
 then :
   libc_cv_arm_pcs_vfp=yes
-else $as_nop
-  libc_cv_arm_pcs_vfp=no
+else case e in #(
+  e) libc_cv_arm_pcs_vfp=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_pcs_vfp" >&5
 printf "%s\n" "$libc_cv_arm_pcs_vfp" >&6; }
@@ -192,8 +186,8 @@ printf %s "checking whether VFP supports 32 registers... " >&6; }
 if test ${libc_cv_arm_pcs_vfp_d32+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -206,10 +200,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_arm_pcs_vfp_d32=yes
-else $as_nop
-  libc_cv_arm_pcs_vfp_d32=no
+else case e in #(
+  e) libc_cv_arm_pcs_vfp_d32=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_pcs_vfp_d32" >&5
 printf "%s\n" "$libc_cv_arm_pcs_vfp_d32" >&6; }
@@ -224,8 +220,8 @@ printf %s "checking whether PC-relative relocs in movw/movt work properly... " >
 if test ${libc_cv_arm_pcrel_movw+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 cat > conftest.s <<\EOF
 	.syntax unified
 	.arm
@@ -259,7 +255,8 @@ LC_ALL=C $READELF -dr conftest.so > conftest.dr 2>&5 &&
   grep -F 'TEXTREL
 R_ARM_NONE' conftest.dr > /dev/null || libc_cv_arm_pcrel_movw=yes
 }
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_pcrel_movw" >&5
 printf "%s\n" "$libc_cv_arm_pcrel_movw" >&6; }
@@ -276,8 +273,8 @@ printf %s "checking whether TPOFF relocs with addends are assembled correctly...
 if test ${libc_cv_arm_tpoff_addend+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 cat > conftest.s <<\EOF
 	.syntax unified
 	.arm
@@ -306,7 +303,8 @@ $1 ~ /0x0+/ && $2 ~ /[0-9a-f]+/ {
 END { exit(result) }
 ' conftest.x 2>&5 && libc_cv_arm_tpoff_addend=yes
 }
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_tpoff_addend" >&5
 printf "%s\n" "$libc_cv_arm_tpoff_addend" >&6; }
diff --git a/sysdeps/hppa/configure b/sysdeps/hppa/configure
index cf5f9e5d7e..0390946d88 100644
--- a/sysdeps/hppa/configure
+++ b/sysdeps/hppa/configure
@@ -5,8 +5,8 @@ printf %s "checking for assembler line separator... " >&6; }
 if test ${libc_cv_asm_line_sep+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.s <<EOF
+else case e in #(
+  e) cat > conftest.s <<EOF
 nop ; is_old_puffin
 EOF
 if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
@@ -24,7 +24,8 @@ else
   fi
   libc_cv_asm_line_sep=';'
 fi
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_line_sep" >&5
 printf "%s\n" "$libc_cv_asm_line_sep" >&6; }
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index 84656cef6e..a618692adf 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -61,8 +61,8 @@ printf %s "checking for linker static PIE support... " >&6; }
 if test ${libc_cv_ld_static_pie+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.s <<\EOF
+else case e in #(
+  e) cat > conftest.s <<\EOF
 	.text
 	.global _start
 _start:
@@ -80,7 +80,8 @@ EOF
       libc_cv_ld_static_pie=yes
     fi
   fi
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_static_pie" >&5
 printf "%s\n" "$libc_cv_ld_static_pie" >&6; }
diff --git a/sysdeps/ieee754/ldbl-opt/configure b/sysdeps/ieee754/ldbl-opt/configure
index 68d8d7b465..bc6552da0b 100644
--- a/sysdeps/ieee754/ldbl-opt/configure
+++ b/sysdeps/ieee754/ldbl-opt/configure
@@ -7,8 +7,8 @@ printf %s "checking whether $CC $CFLAGS supports -mlong-double-128... " >&6; }
 if test ${libc_cv_mlong_double_128+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  save_CFLAGS="$CFLAGS"
+else case e in #(
+  e) save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -mlong-double-128"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -28,11 +28,13 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_mlong_double_128=yes
-else $as_nop
-  libc_cv_mlong_double_128=no
+else case e in #(
+  e) libc_cv_mlong_double_128=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-CFLAGS="$save_CFLAGS"
+CFLAGS="$save_CFLAGS" ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128" >&5
 printf "%s\n" "$libc_cv_mlong_double_128" >&6; }
diff --git a/sysdeps/loongarch/configure b/sysdeps/loongarch/configure
index afcef6cd22..d3d9fec910 100644
--- a/sysdeps/loongarch/configure
+++ b/sysdeps/loongarch/configure
@@ -9,8 +9,8 @@ printf %s "checking if ${CC-cc} is sufficient to build static PIE on LoongArch..
 if test ${libc_cv_static_pie_on_loongarch+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   cat > conftest.S <<\EOF
 .global _start
 .type _start, @function
@@ -48,7 +48,8 @@ EOF
   then
     libc_cv_static_pie_on_loongarch=yes
   fi
-  rm -rf conftest*
+  rm -rf conftest*  ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie_on_loongarch" >&5
 printf "%s\n" "$libc_cv_static_pie_on_loongarch" >&6; }
@@ -64,8 +65,8 @@ printf %s "checking whether $CC supports option -mcmodel=medium... " >&6; }
 if test ${libc_cv_loongarch_cmodel_medium+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
   if { ac_try='${CC-cc} -c $CFLAGS -mcmodel=medium /dev/null 1>&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
@@ -75,7 +76,8 @@ else $as_nop
     libc_cv_loongarch_cmodel_medium=yes
   else
     libc_cv_loongarch_cmodel_medium=no
-  fi
+  fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_cmodel_medium" >&5
 printf "%s\n" "$libc_cv_loongarch_cmodel_medium" >&6; }
@@ -88,8 +90,8 @@ printf %s "checking for vector support in assembler... " >&6; }
 if test ${libc_cv_loongarch_vec_asm+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.s <<\EOF
+else case e in #(
+  e) cat > conftest.s <<\EOF
         vld  $vr0, $sp, 0
 EOF
 if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest 1>&5'
@@ -102,7 +104,8 @@ if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest 1>&5'
 else
   libc_cv_loongarch_vec_asm=no
 fi
-rm -f conftest*
+rm -f conftest* ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_vec_asm" >&5
 printf "%s\n" "$libc_cv_loongarch_vec_asm" >&6; }
@@ -116,8 +119,8 @@ printf %s "checking for vector support in compiler... " >&6; }
 if test ${libc_cv_loongarch_vec_com+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -131,10 +134,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_loongarch_vec_com=yes
-else $as_nop
-  libc_cv_loongarch_vec_com=no
+else case e in #(
+  e) libc_cv_loongarch_vec_com=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_vec_com" >&5
 printf "%s\n" "$libc_cv_loongarch_vec_com" >&6; }
diff --git a/sysdeps/mach/configure b/sysdeps/mach/configure
index f15160d0d8..5779efd1ef 100644
--- a/sysdeps/mach/configure
+++ b/sysdeps/mach/configure
@@ -11,18 +11,20 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <$2>
 _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -40,8 +42,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_MIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$MIG"; then
+else case e in #(
+  e) if test -n "$MIG"; then
   ac_cv_prog_MIG="$MIG" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -63,7 +65,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 MIG=$ac_cv_prog_MIG
 if test -n "$MIG"; then
@@ -85,8 +88,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_MIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_MIG"; then
+else case e in #(
+  e) if test -n "$ac_ct_MIG"; then
   ac_cv_prog_ac_ct_MIG="$ac_ct_MIG" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -108,7 +111,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_MIG=$ac_cv_prog_ac_ct_MIG
 if test -n "$ac_ct_MIG"; then
@@ -153,16 +157,18 @@ ac_fn_c_check_header_preproc "$LINENO" "mach/mach_types.h" "ac_cv_header_mach_ma
 if test "x$ac_cv_header_mach_mach_types_h" = xyes
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find Mach headers" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find Mach headers" "$LINENO" 5 ;;
+esac
 fi
 
 ac_fn_c_check_header_preproc "$LINENO" "mach/mach_types.defs" "ac_cv_header_mach_mach_types_defs"
 if test "x$ac_cv_header_mach_mach_types_defs" = xyes
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find Mach .defs files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find Mach .defs files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -173,8 +179,8 @@ printf %s "checking for task_t in mach/mach_types.h... " >&6; }
 if test ${libc_cv_mach_task_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/mach_types.h>
 int
@@ -188,10 +194,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_mach_task_t=task_t
-else $as_nop
-  libc_cv_mach_task_t=task_port_t
+else case e in #(
+  e) libc_cv_mach_task_t=task_port_t ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_task_t" >&5
 printf "%s\n" "$libc_cv_mach_task_t" >&6; }
@@ -203,8 +211,8 @@ printf %s "checking for thread_t in mach/mach_types.h... " >&6; }
 if test ${libc_cv_mach_thread_t+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/mach_types.h>
 int
@@ -218,10 +226,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_mach_thread_t=thread_t
-else $as_nop
-  libc_cv_mach_thread_t=thread_port_t
+else case e in #(
+  e) libc_cv_mach_thread_t=thread_port_t ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_thread_t" >&5
 printf "%s\n" "$libc_cv_mach_thread_t" >&6; }
@@ -234,8 +244,8 @@ printf %s "checking for creation_time in task_basic_info... " >&6; }
 if test ${libc_cv_mach_task_creation_time+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/task_info.h>
 int
@@ -252,10 +262,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   libc_cv_mach_task_creation_time=yes
-else $as_nop
-  libc_cv_mach_task_creation_time=no
+else case e in #(
+  e) libc_cv_mach_task_creation_time=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_task_creation_time" >&5
 printf "%s\n" "$libc_cv_mach_task_creation_time" >&6; }
@@ -269,7 +281,7 @@ for ifc in mach mach4 gnumach \
 	   processor processor_set task task_notify thread_act vm_map \
 	   memory_object memory_object_default i386/mach_i386 x86_64/mach_i386 \
 	   ; do
-  as_ac_Header=`printf "%s\n" "ac_cv_header_mach/${ifc}.defs" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_mach/${ifc}.defs" | sed "$as_sed_sh"`
 ac_fn_c_check_header_preproc "$LINENO" "mach/${ifc}.defs" "$as_ac_Header"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
@@ -281,14 +293,14 @@ if test "x$mach_interface_list" = x; then
   as_fn_error $? "what manner of Mach is this?" "$LINENO" 5
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -302,13 +314,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -317,14 +330,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -332,35 +345,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_GREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
   fi
 else
-  ac_cv_path_GREP=$GREP
-fi
-
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -374,13 +376,14 @@ do
     for ac_prog in egrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -389,14 +392,14 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -404,45 +407,48 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
-  ac_cv_path_EGREP=$EGREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-
-   fi
+ ;;
+esac
+fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf "%s\n" "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for host_page_size in mach_host.defs" >&5
 printf %s "checking for host_page_size in mach_host.defs... " >&6; }
 if test ${libc_cv_mach_host_page_size+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/mach_host.defs>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "host_page_size" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "host_page_size" >/dev/null 2>&1
 then :
   libc_cv_mach_host_page_size=yes
-else $as_nop
-  libc_cv_mach_host_page_size=no
+else case e in #(
+  e) libc_cv_mach_host_page_size=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_host_page_size" >&5
 printf "%s\n" "$libc_cv_mach_host_page_size" >&6; }
@@ -455,13 +461,14 @@ ac_fn_c_check_header_preproc "$LINENO" "mach/machine/ndr_def.h" "ac_cv_header_ma
 if test "x$ac_cv_header_mach_machine_ndr_def_h" = xyes
 then :
     DEFINES="$DEFINES -DNDR_DEF_HEADER='<mach/machine/ndr_def.h>'"
-else $as_nop
-  ac_fn_c_check_header_preproc "$LINENO" "machine/ndr_def.h" "ac_cv_header_machine_ndr_def_h"
+else case e in #(
+  e) ac_fn_c_check_header_preproc "$LINENO" "machine/ndr_def.h" "ac_cv_header_machine_ndr_def_h"
 if test "x$ac_cv_header_machine_ndr_def_h" = xyes
 then :
     DEFINES="$DEFINES -DNDR_DEF_HEADER='<machine/ndr_def.h>'"
 fi
-
+ ;;
+esac
 fi
 
 
@@ -470,21 +477,23 @@ printf %s "checking for i386_io_perm_modify in mach_i386.defs... " >&6; }
 if test ${libc_cv_mach_i386_ioports+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/machine/mach_i386.defs>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "i386_io_perm_modify" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "i386_io_perm_modify" >/dev/null 2>&1
 then :
   libc_cv_mach_i386_ioports=yes
-else $as_nop
-  libc_cv_mach_i386_ioports=no
+else case e in #(
+  e) libc_cv_mach_i386_ioports=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_i386_ioports" >&5
 printf "%s\n" "$libc_cv_mach_i386_ioports" >&6; }
@@ -498,21 +507,23 @@ printf %s "checking for i386_set_gdt in mach_i386.defs... " >&6; }
 if test ${libc_cv_mach_i386_gdt+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/machine/mach_i386.defs>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "i386_set_gdt" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "i386_set_gdt" >/dev/null 2>&1
 then :
   libc_cv_mach_i386_gdt=yes
-else $as_nop
-  libc_cv_mach_i386_gdt=no
+else case e in #(
+  e) libc_cv_mach_i386_gdt=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_i386_gdt" >&5
 printf "%s\n" "$libc_cv_mach_i386_gdt" >&6; }
diff --git a/sysdeps/mach/hurd/configure b/sysdeps/mach/hurd/configure
index cd5af1cd20..6ca3bab511 100644
--- a/sysdeps/mach/hurd/configure
+++ b/sysdeps/mach/hurd/configure
@@ -15,8 +15,8 @@ printf %s "checking Hurd header version... " >&6; }
 if test ${libc_cv_hurd_version+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <hurd/version.h>
 int
@@ -34,10 +34,12 @@ _ACEOF
 if ac_fn_c_try_cpp "$LINENO"
 then :
   libc_cv_hurd_version=ok
-else $as_nop
-  libc_cv_hurd_version=bad
+else case e in #(
+  e) libc_cv_hurd_version=bad ;;
+esac
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hurd_version" >&5
 printf "%s\n" "$libc_cv_hurd_version" >&6; }
@@ -47,15 +49,14 @@ fi
 
 
 
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -69,13 +70,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -84,14 +86,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -99,35 +101,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_GREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
+    :
   fi
 else
-  ac_cv_path_GREP=$GREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
 
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
+    if test "$ac_cv_path_EGREP_TRADITIONAL"
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
+  ac_cv_path_EGREP_TRADITIONAL="$ac_cv_path_EGREP_TRADITIONAL -E"
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -141,13 +132,14 @@ do
     for ac_prog in egrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -156,14 +148,14 @@ case `"$ac_path_EGREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -171,45 +163,48 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-      $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_TRADITIONAL_found && break 3
     done
   done
   done
 IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
+  if test -z "$ac_cv_path_EGREP_TRADITIONAL"; then
     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
-  ac_cv_path_EGREP=$EGREP
+  ac_cv_path_EGREP_TRADITIONAL=$EGREP_TRADITIONAL
 fi
-
-   fi
+ ;;
+esac
+fi ;;
+esac
 fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP_TRADITIONAL" >&5
+printf "%s\n" "$ac_cv_path_EGREP_TRADITIONAL" >&6; }
+ EGREP_TRADITIONAL=$ac_cv_path_EGREP_TRADITIONAL
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for proc_getchildren_rusage in process.defs" >&5
 printf %s "checking for proc_getchildren_rusage in process.defs... " >&6; }
 if test ${libc_cv_hurd_rpc_proc_getchildren_rusage+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <hurd/process.defs>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "proc_getchildren_rusage" >/dev/null 2>&1
+  $EGREP_TRADITIONAL "proc_getchildren_rusage" >/dev/null 2>&1
 then :
   libc_cv_hurd_rpc_proc_getchildren_rusage=yes
-else $as_nop
-  libc_cv_hurd_rpc_proc_getchildren_rusage=no
+else case e in #(
+  e) libc_cv_hurd_rpc_proc_getchildren_rusage=no ;;
+esac
 fi
 rm -rf conftest*
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hurd_rpc_proc_getchildren_rusage" >&5
 printf "%s\n" "$libc_cv_hurd_rpc_proc_getchildren_rusage" >&6; }
diff --git a/sysdeps/mips/configure b/sysdeps/mips/configure
index 1e8c6711e6..60dbd947e2 100644
--- a/sysdeps/mips/configure
+++ b/sysdeps/mips/configure
@@ -6,14 +6,14 @@ printf "%s\n" "#define HIDDEN_VAR_NEEDS_DYNAMIC_RELOC 1" >>confdefs.h
 
 
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep -e" >&5
+printf %s "checking for egrep -e... " >&6; }
+if test ${ac_cv_path_EGREP_TRADITIONAL+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
+else case e in #(
+  e) if test -z "$EGREP_TRADITIONAL"; then
+  ac_path_EGREP_TRADITIONAL_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
@@ -27,13 +27,14 @@ do
     for ac_prog in grep ggrep
    do
     for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
+      ac_path_EGREP_TRADITIONAL="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP_TRADITIONAL" || continue
+# Check for GNU ac_path_EGREP_TRADITIONAL and select it if it is found.
+  # Check for GNU $ac_path_EGREP_TRADITIONAL
+case `"$ac_path_EGREP_TRADITIONAL" --version 2>&1` in #(
 *GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+  ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL" ac_path_EGREP_TRADITIONAL_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -42,14 +43,14 @@ case `"$ac_path_GREP" --version 2>&1` in
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    printf "%s\n" 'EGREP_TRADITIONAL' >> "conftest.nl"
+    "$ac_path_EGREP_TRADITIONAL" -E 'EGR(EP|AC)_TRADITIONAL$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+    if test $ac_count -gt ${ac_path_EGREP_TRADITIONAL_max-0}; then
       # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
+      ac_cv_path_EGREP_TRADITIONAL="$ac_path_EGREP_TRADITIONAL"
+      ac_path_EGREP_TRADITIONAL_max=$ac_count
     fi
     # 10*(2^10) chars as input seems more than enough
     test $ac_count -gt 10 && break
@@ -57,35 +58,24 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f c