From cb8a6dbd176ee59d61068bed92e2c8d22bd28b13 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 30 Oct 2013 13:20:52 +1000 Subject: rename configure.in to configure.ac Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger --- ChangeLog | 68 + INSTALL | 2 +- Makeconfig | 8 +- Makefile | 6 +- aclocal.m4 | 6 +- config.h.in | 6 +- configure | 2 +- configure.ac | 2172 ++++++++++++++++++++ configure.in | 2172 -------------------- libidn/ChangeLog | 6 + libidn/configure | 2 +- libidn/configure.ac | 11 + libidn/configure.in | 11 - malloc/Makefile | 2 +- manual/install.texi | 2 +- manual/maint.texi | 8 +- nptl/ChangeLog | 9 + nptl/sysdeps/pthread/configure | 2 +- nptl/sysdeps/pthread/configure.ac | 49 + nptl/sysdeps/pthread/configure.in | 49 - nptl/sysdeps/x86_64/configure | 2 +- nptl/sysdeps/x86_64/configure.ac | 23 + nptl/sysdeps/x86_64/configure.in | 23 - nscd/Makefile | 2 +- ports/ChangeLog | 5 + ports/ChangeLog.aarch64 | 6 + ports/ChangeLog.alpha | 9 + ports/ChangeLog.am33 | 6 + ports/ChangeLog.arm | 20 + ports/ChangeLog.hppa | 6 + ports/ChangeLog.ia64 | 9 + ports/ChangeLog.m68k | 6 + ports/ChangeLog.microblaze | 6 + ports/ChangeLog.mips | 12 + ports/ChangeLog.tile | 9 + ports/README | 4 +- ports/sysdeps/alpha/configure | 2 +- ports/sysdeps/alpha/configure.ac | 6 + ports/sysdeps/alpha/configure.in | 6 - ports/sysdeps/arm/armv7/configure | 2 +- ports/sysdeps/arm/armv7/configure.ac | 12 + ports/sysdeps/arm/armv7/configure.in | 12 - ports/sysdeps/arm/configure | 2 +- ports/sysdeps/arm/configure.ac | 46 + ports/sysdeps/arm/configure.in | 46 - ports/sysdeps/arm/preconfigure | 4 +- ports/sysdeps/arm/preconfigure.ac | 58 + ports/sysdeps/arm/preconfigure.in | 58 - ports/sysdeps/hppa/configure | 2 +- ports/sysdeps/hppa/configure.ac | 66 + ports/sysdeps/hppa/configure.in | 66 - ports/sysdeps/ia64/configure | 2 +- ports/sysdeps/ia64/configure.ac | 6 + ports/sysdeps/ia64/configure.in | 6 - ports/sysdeps/mips/configure | 2 +- ports/sysdeps/mips/configure.ac | 15 + ports/sysdeps/mips/configure.in | 15 - ports/sysdeps/unix/sysv/linux/aarch64/configure | 2 +- ports/sysdeps/unix/sysv/linux/aarch64/configure.ac | 17 + ports/sysdeps/unix/sysv/linux/aarch64/configure.in | 17 - ports/sysdeps/unix/sysv/linux/alpha/configure | 2 +- ports/sysdeps/unix/sysv/linux/alpha/configure.ac | 5 + ports/sysdeps/unix/sysv/linux/alpha/configure.in | 5 - ports/sysdeps/unix/sysv/linux/am33/configure | 2 +- ports/sysdeps/unix/sysv/linux/am33/configure.ac | 4 + ports/sysdeps/unix/sysv/linux/am33/configure.in | 4 - ports/sysdeps/unix/sysv/linux/arm/configure | 4 +- ports/sysdeps/unix/sysv/linux/arm/configure.ac | 6 + ports/sysdeps/unix/sysv/linux/arm/configure.in | 6 - ports/sysdeps/unix/sysv/linux/arm/nptl/configure | 2 +- .../sysdeps/unix/sysv/linux/arm/nptl/configure.ac | 8 + .../sysdeps/unix/sysv/linux/arm/nptl/configure.in | 8 - ports/sysdeps/unix/sysv/linux/ia64/configure | 2 +- ports/sysdeps/unix/sysv/linux/ia64/configure.ac | 4 + ports/sysdeps/unix/sysv/linux/ia64/configure.in | 4 - ports/sysdeps/unix/sysv/linux/m68k/configure | 2 +- ports/sysdeps/unix/sysv/linux/m68k/configure.ac | 10 + ports/sysdeps/unix/sysv/linux/m68k/configure.in | 10 - ports/sysdeps/unix/sysv/linux/microblaze/configure | 2 +- .../unix/sysv/linux/microblaze/configure.ac | 4 + .../unix/sysv/linux/microblaze/configure.in | 4 - ports/sysdeps/unix/sysv/linux/mips/configure | 2 +- ports/sysdeps/unix/sysv/linux/mips/configure.ac | 99 + ports/sysdeps/unix/sysv/linux/mips/configure.in | 99 - .../sysdeps/unix/sysv/linux/mips/mips64/configure | 2 +- .../unix/sysv/linux/mips/mips64/configure.ac | 5 + .../unix/sysv/linux/mips/mips64/configure.in | 5 - ports/sysdeps/unix/sysv/linux/tile/configure | 2 +- ports/sysdeps/unix/sysv/linux/tile/configure.ac | 4 + ports/sysdeps/unix/sysv/linux/tile/configure.in | 4 - .../sysdeps/unix/sysv/linux/tile/tilegx/configure | 2 +- .../unix/sysv/linux/tile/tilegx/configure.ac | 4 + .../unix/sysv/linux/tile/tilegx/configure.in | 4 - sysdeps/gnu/configure | 2 +- sysdeps/gnu/configure.ac | 47 + sysdeps/gnu/configure.in | 47 - sysdeps/i386/configure | 2 +- sysdeps/i386/configure.ac | 93 + sysdeps/i386/configure.in | 93 - sysdeps/ieee754/ldbl-opt/configure | 2 +- sysdeps/ieee754/ldbl-opt/configure.ac | 19 + sysdeps/ieee754/ldbl-opt/configure.in | 19 - sysdeps/mach/configure | 2 +- sysdeps/mach/configure.ac | 126 ++ sysdeps/mach/configure.in | 126 -- sysdeps/mach/hurd/configure | 2 +- sysdeps/mach/hurd/configure.ac | 31 + sysdeps/mach/hurd/configure.in | 31 - sysdeps/powerpc/configure | 2 +- sysdeps/powerpc/configure.ac | 21 + sysdeps/powerpc/configure.in | 21 - sysdeps/powerpc/powerpc32/configure | 2 +- sysdeps/powerpc/powerpc32/configure.ac | 32 + sysdeps/powerpc/powerpc32/configure.in | 32 - sysdeps/powerpc/powerpc64/configure | 2 +- sysdeps/powerpc/powerpc64/configure.ac | 42 + sysdeps/powerpc/powerpc64/configure.in | 42 - sysdeps/s390/s390-32/configure | 2 +- sysdeps/s390/s390-32/configure.ac | 6 + sysdeps/s390/s390-32/configure.in | 6 - sysdeps/s390/s390-64/configure | 2 +- sysdeps/s390/s390-64/configure.ac | 6 + sysdeps/s390/s390-64/configure.in | 6 - sysdeps/sh/configure | 2 +- sysdeps/sh/configure.ac | 6 + sysdeps/sh/configure.in | 6 - sysdeps/sparc/configure | 2 +- sysdeps/sparc/configure.ac | 59 + sysdeps/sparc/configure.in | 59 - sysdeps/unix/sysv/linux/configure | 2 +- sysdeps/unix/sysv/linux/configure.ac | 215 ++ sysdeps/unix/sysv/linux/configure.in | 215 -- sysdeps/unix/sysv/linux/powerpc/configure | 2 +- sysdeps/unix/sysv/linux/powerpc/configure.ac | 37 + sysdeps/unix/sysv/linux/powerpc/configure.in | 37 - sysdeps/x86_64/configure | 2 +- sysdeps/x86_64/configure.ac | 57 + sysdeps/x86_64/configure.in | 57 - sysdeps/x86_64/preconfigure | 2 +- sysdeps/x86_64/preconfigure.ac | 20 + sysdeps/x86_64/preconfigure.in | 20 - 141 files changed, 3692 insertions(+), 3515 deletions(-) create mode 100644 configure.ac delete mode 100644 configure.in create mode 100644 libidn/configure.ac delete mode 100644 libidn/configure.in create mode 100644 nptl/sysdeps/pthread/configure.ac delete mode 100644 nptl/sysdeps/pthread/configure.in create mode 100644 nptl/sysdeps/x86_64/configure.ac delete mode 100644 nptl/sysdeps/x86_64/configure.in create mode 100644 ports/sysdeps/alpha/configure.ac delete mode 100644 ports/sysdeps/alpha/configure.in mode change 100755 => 100644 ports/sysdeps/arm/armv7/configure create mode 100644 ports/sysdeps/arm/armv7/configure.ac delete mode 100644 ports/sysdeps/arm/armv7/configure.in create mode 100644 ports/sysdeps/arm/configure.ac delete mode 100644 ports/sysdeps/arm/configure.in create mode 100644 ports/sysdeps/arm/preconfigure.ac delete mode 100644 ports/sysdeps/arm/preconfigure.in create mode 100644 ports/sysdeps/hppa/configure.ac delete mode 100644 ports/sysdeps/hppa/configure.in create mode 100644 ports/sysdeps/ia64/configure.ac delete mode 100644 ports/sysdeps/ia64/configure.in create mode 100644 ports/sysdeps/mips/configure.ac delete mode 100644 ports/sysdeps/mips/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/aarch64/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/aarch64/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/alpha/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/alpha/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/am33/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/am33/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/arm/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/arm/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/arm/nptl/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/arm/nptl/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/ia64/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/ia64/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/m68k/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/m68k/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/microblaze/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/microblaze/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/mips/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/mips/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/mips/mips64/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/mips/mips64/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/tile/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/tile/configure.in create mode 100644 ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.ac delete mode 100644 ports/sysdeps/unix/sysv/linux/tile/tilegx/configure.in create mode 100644 sysdeps/gnu/configure.ac delete mode 100644 sysdeps/gnu/configure.in create mode 100644 sysdeps/i386/configure.ac delete mode 100644 sysdeps/i386/configure.in create mode 100644 sysdeps/ieee754/ldbl-opt/configure.ac delete mode 100644 sysdeps/ieee754/ldbl-opt/configure.in create mode 100644 sysdeps/mach/configure.ac delete mode 100644 sysdeps/mach/configure.in create mode 100644 sysdeps/mach/hurd/configure.ac delete mode 100644 sysdeps/mach/hurd/configure.in create mode 100644 sysdeps/powerpc/configure.ac delete mode 100644 sysdeps/powerpc/configure.in create mode 100644 sysdeps/powerpc/powerpc32/configure.ac delete mode 100644 sysdeps/powerpc/powerpc32/configure.in create mode 100644 sysdeps/powerpc/powerpc64/configure.ac delete mode 100644 sysdeps/powerpc/powerpc64/configure.in create mode 100644 sysdeps/s390/s390-32/configure.ac delete mode 100644 sysdeps/s390/s390-32/configure.in create mode 100644 sysdeps/s390/s390-64/configure.ac delete mode 100644 sysdeps/s390/s390-64/configure.in create mode 100644 sysdeps/sh/configure.ac delete mode 100644 sysdeps/sh/configure.in create mode 100644 sysdeps/sparc/configure.ac delete mode 100644 sysdeps/sparc/configure.in create mode 100644 sysdeps/unix/sysv/linux/configure.ac delete mode 100644 sysdeps/unix/sysv/linux/configure.in create mode 100644 sysdeps/unix/sysv/linux/powerpc/configure.ac delete mode 100644 sysdeps/unix/sysv/linux/powerpc/configure.in create mode 100644 sysdeps/x86_64/configure.ac delete mode 100644 sysdeps/x86_64/configure.in create mode 100644 sysdeps/x86_64/preconfigure.ac delete mode 100644 sysdeps/x86_64/preconfigure.in diff --git a/ChangeLog b/ChangeLog index 7a90117794..f661730dbc 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,71 @@ +2013-10-30 Mike Frysinger + + * configure.in: Moved to ... + * configure.ac: ... here. Change reference to configure.in + to configure.ac. + * sysdeps/arm/preconfigure.ac: ... here. + configure.in to configure.ac. + * sysdeps/gnu/configure.in: Moved to ... + * sysdeps/gnu/configure.ac: ... here. + * sysdeps/i386/configure.in: Moved to ... + * sysdeps/i386/configure.ac: ... here. + * sysdeps/ieee754/ldbl-opt/configure.in: Moved to ... + * sysdeps/ieee754/ldbl-opt/configure.ac: ... here. + * sysdeps/mach/configure.in: Moved to ... + * sysdeps/mach/configure.ac: ... here. + * sysdeps/mach/hurd/configure.in: Moved to ... + * sysdeps/mach/hurd/configure.ac: ... here. + * sysdeps/powerpc/configure.in: Moved to ... + * sysdeps/powerpc/configure.ac: ... here. + * sysdeps/powerpc/powerpc32/configure.in: Moved to ... + * sysdeps/powerpc/powerpc32/configure.ac: ... here. + * sysdeps/powerpc/powerpc64/configure.in: Moved to ... + * sysdeps/powerpc/powerpc64/configure.ac: ... here. + * sysdeps/s390/s390-32/configure.in: Moved to ... + * sysdeps/s390/s390-32/configure.ac: ... here. + * sysdeps/s390/s390-64/configure.in: Moved to ... + * sysdeps/s390/s390-64/configure.ac: ... here. + * sysdeps/sh/configure.in: Moved to ... + * sysdeps/sh/configure.ac: ... here. + * sysdeps/sparc/configure.in: Moved to ... + * sysdeps/sparc/configure.ac: ... here. + * sysdeps/unix/sysv/linux/configure.in: Moved to ... + * sysdeps/unix/sysv/linux/configure.ac: ... here. + * sysdeps/unix/sysv/linux/powerpc/configure.in: Moved to ... + * sysdeps/unix/sysv/linux/powerpc/configure.ac: ... here. + * sysdeps/x86_64/configure.in: Moved to ... + * sysdeps/x86_64/configure.ac: ... here. + * sysdeps/x86_64/preconfigure.in: Moved to ... + * sysdeps/x86_64/preconfigure.ac: ... here. + * aclocal.m4: Change reference to configure.in to configure.ac. + * config.h.in: Likewise. + * manual/install.texi: Likewise. + * manual/maint.texi: Likewise. + * Makefile: Likewise. + * malloc/Makefile: Likewise. + * nscd/Makefile: Likewise. + * Makeconfig: Change reference to configure.in and + preconfigure.in to configure.ac and preconfigure.ac + respectively. + * INSTALL: Regenerated. + * configure: Likewise. + * sysdeps/gnu/configure: Likewise. + * sysdeps/i386/configure: Likewise. + * sysdeps/ieee754/ldbl-opt/configure: Likewise. + * sysdeps/mach/configure: Likewise. + * sysdeps/mach/hurd/configure: Likewise. + * sysdeps/powerpc/configure: Likewise. + * sysdeps/powerpc/powerpc32/configure: Likewise. + * sysdeps/powerpc/powerpc64/configure: Likewise. + * sysdeps/s390/s390-32/configure: Likewise. + * sysdeps/s390/s390-64/configure: Likewise. + * sysdeps/sh/configure: Likewise. + * sysdeps/sparc/configure: Likewise. + * sysdeps/unix/sysv/linux/configure: Likewise. + * sysdeps/unix/sysv/linux/powerpc/configure: Likewise. + * sysdeps/x86_64/configure: Likewise. + * sysdeps/x86_64/preconfigure: Likewise. + 2013-10-29 Andreas Schwab * stdio-common/Makefile (tst-swscanf-ENV): Define. diff --git a/INSTALL b/INSTALL index 7aa52183de..348f948750 100644 --- a/INSTALL +++ b/INSTALL @@ -368,7 +368,7 @@ build the GNU C Library: should definitely upgrade `sed'. -If you change any of the `configure.in' files you will also need +If you change any of the `configure.ac' files you will also need * GNU `autoconf' 2.53 or higher diff --git a/Makeconfig b/Makeconfig index a3d3e70150..66189877b1 100644 --- a/Makeconfig +++ b/Makeconfig @@ -88,16 +88,16 @@ $(common-objpfx)config.status: $(..)version.h $(..)configure \ $(wildcard $(dir)/Implies) \ $(patsubst %.in,%,\ $(firstword $(wildcard \ - $(addprefix $(dir)/,configure configure.in))))) \ + $(addprefix $(dir)/,configure configure.ac))))) \ $(patsubst %.in,%,\ - $(wildcard $(..)sysdeps/*/preconfigure $(..)sysdeps/*/preconfigure.in)) \ + $(wildcard $(..)sysdeps/*/preconfigure $(..)sysdeps/*/preconfigure.ac)) \ $(patsubst %.in,%,\ $(foreach add-on,$(add-ons),\ $(firstword $(wildcard \ $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\ - configure configure.in))) \ + configure configure.ac))) \ $(wildcard $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\ - sysdeps/*/preconfigure sysdeps/*/preconfigure.in)))) + sysdeps/*/preconfigure sysdeps/*/preconfigure.ac)))) @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \ echo The GNU C library has not been configured. >&2; \ echo Run \`configure\' to configure it before building. >&2; \ diff --git a/Makefile b/Makefile index 302a300d48..ccba09a6ad 100644 --- a/Makefile +++ b/Makefile @@ -38,9 +38,9 @@ chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new mv -f $@.new $@ endef -configure: configure.in aclocal.m4; $(autoconf-it) -%/configure: %/configure.in aclocal.m4; $(autoconf-it) -%/preconfigure: %/preconfigure.in aclocal.m4; $(autoconf-it) +configure: configure.ac aclocal.m4; $(autoconf-it) +%/configure: %/configure.ac aclocal.m4; $(autoconf-it) +%/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it) endif # $(AUTOCONF) = no diff --git a/aclocal.m4 b/aclocal.m4 index 64351d0a00..bc48586dc2 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -9,8 +9,8 @@ m4_defn([AC_AUTOCONF_VERSION]) ), [63])])dnl dnl dnl We define the macro GLIBC_PROVIDES to do an AC_PROVIDE for each macro -dnl which appears in configure.in before the sysdep configure scripts are run. -dnl Each sysdep configure.in does GLIBC_PROVIDES first, to avoid any +dnl which appears in configure.ac before the sysdep configure scripts are run. +dnl Each sysdep configure.ac does GLIBC_PROVIDES first, to avoid any dnl AC_REQUIREs or AC_BEFOREs duplicating their code. dnl define([GLIBC_PROVIDES], [dnl @@ -39,7 +39,7 @@ dnl Ripped out of AS_INIT, which does more cruft we do not want. m4_wrap([m4_divert_pop([BODY])[]]) m4_divert_push([BODY])[]dnl dnl End of ripped out of AS_INIT. -# This file is generated from configure.in by Autoconf. DO NOT EDIT! +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! define([_AC_LANG], [C])dnl ])dnl dnl diff --git a/config.h.in b/config.h.in index 0ee1ec6f56..f6151c55bf 100644 --- a/config.h.in +++ b/config.h.in @@ -201,13 +201,13 @@ They are used only in miscellaneous generator programs, not in compiling libc itself. */ -/* sysdeps/generic/configure.in */ +/* sysdeps/generic/configure.ac */ #undef HAVE_PSIGNAL -/* sysdeps/unix/configure.in */ +/* sysdeps/unix/configure.ac */ #undef HAVE_STRERROR -/* sysdeps/unix/common/configure.in */ +/* sysdeps/unix/common/configure.ac */ #undef HAVE_SYS_SIGLIST #undef HAVE__SYS_SIGLIST #undef HAVE__CTYPE_ diff --git a/configure b/configure index 5e2f4d0dd2..f382138352 100755 --- a/configure +++ b/configure @@ -5171,7 +5171,7 @@ $as_echo_n "checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works... " >&6; } if ${libc_cv_autoconf_works+:} false; then : $as_echo_n "(cached) " >&6 else - if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then + if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then libc_cv_autoconf_works=yes else libc_cv_autoconf_works=no diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000000..49b70fd3a6 --- /dev/null +++ b/configure.ac @@ -0,0 +1,2172 @@ +dnl Process this file with autoconf to produce a configure script. +dnl Note we do not use AC_PREREQ here! See aclocal.m4 for what we use instead. +AC_INIT([GNU C Library], [(see version.h)], [http://sourceware.org/bugzilla/], [glibc]) +AC_CONFIG_SRCDIR([include/features.h]) +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_AUX_DIR([scripts]) + +ACX_PKGVERSION([GNU libc]) +ACX_BUGURL([http://www.gnu.org/software/libc/bugs.html]) +AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], + [Package description]) +AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], + [Bug reporting address]) + +# Glibc should not depend on any header files +AC_DEFUN([_AC_INCLUDES_DEFAULT_REQUIREMENTS], + [m4_divert_text([DEFAULTS], + [ac_includes_default='/* none */'])]) + +# We require GCC, and by default use its preprocessor. Override AC_PROG_CPP +# here to work around the Autoconf issue discussed in +# . +AC_DEFUN([AC_PROG_CPP], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_ARG_VAR([CPP], [C preprocessor])dnl +_AC_ARG_VAR_CPPFLAGS()dnl +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + CPP="$CC -E" +fi +AC_SUBST(CPP)dnl +])# AC_PROG_CPP + +# We require GCC. Override _AC_PROG_CC_C89 here to work around the Autoconf +# issue discussed in +# . +AC_DEFUN([_AC_PROG_CC_C89], [[$1]]) + +dnl This is here so we can set $subdirs directly based on configure fragments. +AC_CONFIG_SUBDIRS() + +AC_CANONICAL_HOST + +AC_PROG_CC +if test $host != $build; then + AC_CHECK_PROGS(BUILD_CC, gcc cc) +fi +AC_SUBST(cross_compiling) +AC_PROG_CPP +# We need the C++ compiler only for testing. +AC_PROG_CXX +AC_CHECK_TOOL(READELF, readelf, false) + +if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then + AC_MSG_ERROR([you must configure in a separate build directory]) +fi + +# This will get text that should go into config.make. +config_vars= + +# Check for a --with-gd argument and set libgd-LDFLAGS in config.make. +AC_ARG_WITH([gd], + AC_HELP_STRING([--with-gd=DIR], + [find libgd include dir and library with prefix DIR]), + [dnl +case "$with_gd" in +yes|''|no) ;; +*) libgd_include="-I$withval/include" + libgd_ldflags="-L$withval/lib" ;; +esac +]) +AC_ARG_WITH([gd-include], + AC_HELP_STRING([--with-gd-include=DIR], + [find libgd include files in DIR]), + [dnl +case "$with_gd_include" in +''|no) ;; +*) libgd_include="-I$withval" ;; +esac +]) +AC_ARG_WITH([gd-lib], + AC_HELP_STRING([--with-gd-lib=DIR], + [find libgd library files in DIR]), + [dnl +case "$with_gd_lib" in +''|no) ;; +*) libgd_ldflags="-L$withval" ;; +esac +]) + +if test -n "$libgd_include"; then + config_vars="$config_vars +CFLAGS-memusagestat.c = $libgd_include" +fi +if test -n "$libgd_ldflags"; then + config_vars="$config_vars +libgd-LDFLAGS = $libgd_ldflags" +fi + +dnl Arguments to specify presence of other packages/features. +AC_ARG_WITH([fp], + AC_HELP_STRING([--with-fp], + [if using floating-point hardware @<:@default=yes@:>@]), + [with_fp=$withval], + [with_fp=yes]) +AC_SUBST(with_fp) +AC_ARG_WITH([binutils], + AC_HELP_STRING([--with-binutils=PATH], + [specify location of binutils (as and ld)]), + [path_binutils=$withval], + [path_binutils='']) +AC_ARG_WITH([selinux], + AC_HELP_STRING([--with-selinux], + [if building with SELinux support]), + [with_selinux=$withval], + [with_selinux=auto]) + +AC_ARG_WITH([headers], + AC_HELP_STRING([--with-headers=PATH], + [location of system headers to use + (for example /usr/src/linux/include) + @<:@default=compiler default@:>@]), + [sysheaders=$withval], + [sysheaders='']) +AC_SUBST(sysheaders) + +AC_SUBST(use_default_link) +AC_ARG_WITH([default-link], + AC_HELP_STRING([--with-default-link], + [do not use explicit linker scripts]), + [use_default_link=$withval], + [use_default_link=default]) + +AC_ARG_ENABLE([sanity-checks], + AC_HELP_STRING([--disable-sanity-checks], + [really do not use threads (should not be used except in special situations) @<:@default=yes@:>@]), + [enable_sanity=$enableval], + [enable_sanity=yes]) + +AC_ARG_ENABLE([shared], + AC_HELP_STRING([--enable-shared], + [build shared library @<:@default=yes if GNU ld@:>@]), + [shared=$enableval], + [shared=yes]) +AC_ARG_ENABLE([profile], + AC_HELP_STRING([--enable-profile], + [build profiled library @<:@default=no@:>@]), + [profile=$enableval], + [profile=no]) + +AC_ARG_ENABLE([oldest-abi], + AC_HELP_STRING([--enable-oldest-abi=ABI], + [configure the oldest ABI supported @<:@e.g. 2.2@:>@ @<:@default=glibc default@:>@]), + [oldest_abi=$enableval], + [oldest_abi=no]) +if test "$oldest_abi" = yes || test "$oldest_abi" = no; then + oldest_abi=default +else + AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi") +fi +AC_SUBST(oldest_abi) + +AC_ARG_ENABLE([hardcoded-path-in-tests], + AC_HELP_STRING([--enable-hardcoded-path-in-tests], + [hardcode newly built glibc path in tests @<:@default=no@:>@]), + [hardcoded_path_in_tests=$enableval], + [hardcoded_path_in_tests=no]) +AC_SUBST(hardcoded_path_in_tests) + +AC_ARG_ENABLE([stackguard-randomization], + AC_HELP_STRING([--enable-stackguard-randomization], + [initialize __stack_chk_guard canary with a random number at program start]), + [enable_stackguard_randomize=$enableval], + [enable_stackguard_randomize=no]) +if test "$enable_stackguard_randomize" = yes; then + AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE) +fi + +AC_ARG_ENABLE([lock-elision], + AC_HELP_STRING([--enable-lock-elision[=yes/no]], + [Enable lock elision for pthread mutexes by default]), + [enable_lock_elision=$enableval], + [enable_lock_elision=no]) +if test "$enable_lock_elision" = yes ; then + AC_DEFINE(ENABLE_LOCK_ELISION) +fi + +dnl Generic infrastructure for drop-in additions to libc. +AC_ARG_ENABLE([add-ons], + AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], + [configure and build add-ons in DIR1,DIR2,... + search for add-ons if no parameter given]), + , [enable_add_ons=yes]) + +AC_ARG_ENABLE([hidden-plt], + AC_HELP_STRING([--disable-hidden-plt], + [do not hide internal function calls to avoid PLT]), + [hidden=$enableval], + [hidden=yes]) +if test "x$hidden" = xno; then + AC_DEFINE(NO_HIDDEN) +fi + +AC_ARG_ENABLE([bind-now], + AC_HELP_STRING([--enable-bind-now], + [disable lazy relocations in DSOs]), + [bindnow=$enableval], + [bindnow=no]) +AC_SUBST(bindnow) + +dnl On some platforms we cannot use dynamic loading. We must provide +dnl static NSS modules. +AC_ARG_ENABLE([static-nss], + AC_HELP_STRING([--enable-static-nss], + [build static NSS modules @<:@default=no@:>@]), + [static_nss=$enableval], + [static_nss=no]) +dnl Enable static NSS also if we build no shared objects. +if test x"$static_nss" = xyes || test x"$shared" = xno; then + static_nss=yes + AC_DEFINE(DO_STATIC_NSS) +fi + +AC_ARG_ENABLE([force-install], + AC_HELP_STRING([--disable-force-install], + [don't force installation of files from this package, even if they are older than the installed files]), + [force_install=$enableval], + [force_install=yes]) +AC_SUBST(force_install) + +dnl On some platforms we allow dropping compatibility with all kernel +dnl versions. +AC_ARG_ENABLE([kernel], + AC_HELP_STRING([--enable-kernel=VERSION], + [compile for compatibility with kernel not older than VERSION]), + [minimum_kernel=$enableval], + []) +dnl Prevent unreasonable values. +if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then + # Better nothing than this. + minimum_kernel="" +else + if test "$minimum_kernel" = current; then + minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel= + fi +fi + +dnl For the development we sometimes want gcc to issue even more warnings. +dnl This is not the default since many of the extra warnings are not +dnl appropriate. +AC_ARG_ENABLE([all-warnings], + AC_HELP_STRING([--enable-all-warnings], + [enable all useful warnings gcc can issue]), + [all_warnings=$enableval], + []) +AC_SUBST(all_warnings) + +AC_ARG_ENABLE([multi-arch], + AC_HELP_STRING([--enable-multi-arch], + [enable single DSO with optimizations for multiple architectures]), + [multi_arch=$enableval], + [multi_arch=default]) + +AC_ARG_ENABLE([nss-crypt], + AC_HELP_STRING([--enable-nss-crypt], + [enable libcrypt to use nss]), + [nss_crypt=$enableval], + [nss_crypt=no]) +if test x$nss_crypt = xyes; then + nss_includes=-I$(nss-config --includedir 2>/dev/null) + if test $? -ne 0; then + AC_MSG_ERROR([cannot find include directory with nss-config]) + fi + old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $nss_includes" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; +#include +#include +void f (void) { NSSLOW_Init (); }])], + libc_cv_nss_crypt=yes, + AC_MSG_ERROR([ +cannot find NSS headers with lowlevel hash function interfaces])) + old_LIBS="$LIBS" + LIBS="$LIBS -lfreebl3" + AC_LINK_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; +#include +#include ], + [NSSLOW_Init();])], + libc_cv_nss_crypt=yes, + AC_MSG_ERROR([ +cannot link program using lowlevel NSS hash functions])) + CFLAGS="$old_CFLAGS" + LIBS="$old_LIBS" +else + libc_cv_nss_crypt=no +fi +AC_SUBST(libc_cv_nss_crypt) + + +AC_ARG_ENABLE([obsolete-rpc], + AC_HELP_STRING([--enable-obsolete-rpc], + [build and install the obsolete RPC code for link-time usage]), + [link_obsolete_rpc=$enableval], + [link_obsolete_rpc=no]) +AC_SUBST(link_obsolete_rpc) + +if test "$link_obsolete_rpc" = yes; then + AC_DEFINE(LINK_OBSOLETE_RPC) +fi + +AC_ARG_ENABLE([systemtap], + [AS_HELP_STRING([--enable-systemtap], + [enable systemtap static probe points @<:@default=no@:>@])], + [systemtap=$enableval], + [systemtap=no]) +if test "x$systemtap" != xno; then + AC_CACHE_CHECK([for systemtap static probe support], libc_cv_sdt, [dnl + old_CFLAGS="$CFLAGS" + CFLAGS="-std=gnu99 $CFLAGS" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include +void foo (int i, void *p) +{ + asm ("" STAP_PROBE_ASM (foo, bar, STAP_PROBE_ASM_TEMPLATE (2)) "" + :: STAP_PROBE_ASM_OPERANDS (2, i, p)); +}]])], [libc_cv_sdt=yes], [libc_cv_sdt=no]) + CFLAGS="$old_CFLAGS"]) + if test $libc_cv_sdt = yes; then + AC_DEFINE([USE_STAP_PROBE]) + elif test "x$systemtap" != xauto; then + AC_MSG_FAILURE([systemtap support needs sys/sdt.h with asm support]) + fi +fi + +AC_ARG_ENABLE([build-nscd], + [AS_HELP_STRING([--disable-build-nscd], + [disable building and installing the nscd daemon])], + [build_nscd=$enableval], + [build_nscd=default]) +AC_SUBST(build_nscd) + +# Note the use of $use_nscd is near the bottom of the file. +AC_ARG_ENABLE([nscd], + [AS_HELP_STRING([--disable-nscd], + [library functions will not contact the nscd daemon])], + [use_nscd=$enableval], + [use_nscd=yes]) + +AC_ARG_ENABLE([pt_chown], + [AS_HELP_STRING([--enable-pt_chown], + [Enable building and installing pt_chown])], + [build_pt_chown=$enableval], + [build_pt_chown=no]) +AC_SUBST(build_pt_chown) +if test "$build_pt_chown" = yes; then + AC_DEFINE(HAVE_PT_CHOWN) +fi + +# The way shlib-versions is used to generate soversions.mk uses a +# fairly simplistic model for name recognition that can't distinguish +# i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os +# of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can +# tell. This doesn't get used much beyond that, so it's fairly safe. +case "$host_os" in +linux*) + ;; +gnu*) + host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` + ;; +esac + +# We keep the original values in `$config_*' and never modify them, so we +# can write them unchanged into config.make. Everything else uses +# $machine, $vendor, and $os, and changes them whenever convenient. +config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os + +# Don't allow vendor == "unknown" +test "$config_vendor" = unknown && config_vendor= +config_os="`echo $config_os | sed 's/^unknown-//'`" + +# Some configurations imply other options. +elf=yes + +# The configure fragment of an add-on port can modify these to supplement +# or override the table in the case statement below. No fragment should +# ever change the config_* variables, however. +machine=$config_machine +vendor=$config_vendor +os=$config_os +base_os='' + +# config.guess on some IBM machines says `rs6000' instead of `powerpc'. +# Unify this here. +if test "$machine" = rs6000; then + machine="powerpc" +fi + +# Braindead PowerPC box with absolutely no FPU. +case "$machine-$host_os" in + powerpc*-*soft) + with_fp=no + ;; +esac + +submachine= +AC_ARG_WITH([cpu], + AS_HELP_STRING([--with-cpu=CPU], [select code for CPU variant]), + [dnl + case "$withval" in + yes|'') AC_MSG_ERROR([--with-cpu requires an argument]) ;; + no) ;; + *) submachine="$withval" ;; + esac +]) + +dnl Let sysdeps/*/preconfigure act here, like they can in add-ons. +LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) + +# An add-on can set this when it wants to disable the sanity check below. +libc_config_ok=no + +dnl Having this here, though empty, makes sure that if add-ons' fragments +dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then +dnl our AC_OUTPUT will actually use it. +AC_CONFIG_SUBDIRS() + +case "$enable_add_ons" in +''|no) add_ons= ;; +yes|'*') + add_ons=`cd $srcdir && ls -d 2> /dev/null */configure */sysdeps | + sed 's@/[[^/]]*$@@' | sort | uniq` + add_ons_automatic=yes + ;; +*) add_ons=`echo "$enable_add_ons" | sed 's/,/ /g'` + add_ons_automatic=no ;; +esac + +configured_add_ons= +add_ons_sfx= +add_ons_pfx= +if test x"$add_ons" != x; then + for f in $add_ons; do + # Some sanity checks + case "$f" in + crypt) + AC_MSG_ERROR([ +*** It seems that you're using an old \`crypt' add-on. crypt is now +*** part of glibc and using the old add-on will not work with this +*** release. Start again with fresh sources and without the old +*** \`crypt' add-on.]) + ;; + localedata) + AC_MSG_ERROR([ +*** It seems that you're using an old \`localedata' add-on. localedata +*** is now part of glibc and using the old add-on will not work with +*** this release. Start again with fresh sources and without the old +*** \`localedata' add-on.]) + ;; + esac + done + + # Now source each add-on's configure fragment. + # The fragments can use $srcdir/$libc_add_on to find themselves, + # and test $add_ons_automatic to see if they were explicitly requested. + # A fragment can clear (or even change) $libc_add_on to affect + # whether it goes into the list to be actually used in the build. + use_add_ons= + for libc_add_on in $add_ons; do + # Test whether such a directory really exists. + # It can be absolute, or relative to $srcdir, or relative to the build dir. + case "$libc_add_on" in + /*) + libc_add_on_srcdir=$libc_add_on + ;; + *) + test -d "$srcdir/$libc_add_on" || { + if test -d "$libc_add_on"; then + libc_add_on="`pwd`/$libc_add_on" + else + AC_MSG_ERROR(add-on directory \"$libc_add_on\" does not exist) + fi + } + libc_add_on_srcdir=$srcdir/$libc_add_on + ;; + esac + + libc_add_on_frag=$libc_add_on_srcdir/configure + libc_add_on_canonical= + libc_add_on_config_subdirs= + if test -r "$libc_add_on_frag"; then + AC_MSG_NOTICE(running configure fragment for add-on $libc_add_on) + libc_add_on_canonical=unknown + libc_add_on_subdirs= + . "$libc_add_on_frag" + test -z "$libc_add_on" || { + configured_add_ons="$configured_add_ons $libc_add_on" + if test "x$libc_add_on_canonical" = xunknown; then + AC_MSG_ERROR(fragment must set \$libc_add_on_canonical) + fi + for d in $libc_add_on_subdirs; do + case "$libc_add_on" in + /*) subdir_srcdir="$libc_add_on" ;; + *) subdir_srcdir="\$(..)$libc_add_on" ;; + esac + case "$d" in + .) + d="${libc_add_on_canonical:-$libc_add_on}" + ;; + /*) + subdir_srcdir="$d" + ;; + *) + subdir_srcdir="$subdir_srcdir/$d" + ;; + esac + d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'` + add_on_subdirs="$add_on_subdirs $d" + test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars +$d-srcdir = $subdir_srcdir" + done + for d in $libc_add_on_config_subdirs; do + case "$d" in + /*) AC_MSG_ERROR(dnl +fragment uses absolute path in \$libc_add_on_config_subdirs) ;; + esac + if test ! -d "$libc_add_on_srcdir/$d"; then + AC_MSG_ERROR(fragment wants to configure missing directory $d) + fi + case "$libc_add_on" in + /*) AC_MSG_ERROR(dnl +relative path required for add-on using \$libc_add_on_config_subdirs) ;; + esac + subdirs="$subdirs $libc_add_on/$d" + done + } + fi + if test -n "$libc_add_on"; then + LIBC_PRECONFIGURE([$libc_add_on_srcdir], [add-on $libc_add_on for]) + use_add_ons="$use_add_ons $libc_add_on" + add_ons_pfx="$add_ons_pfx $libc_add_on/" + test -z "$libc_add_on_canonical" || + add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical" + fi + done + # Use echo to strip excess whitespace. + add_ons="`echo $use_add_ons`" +fi +AC_SUBST(add_ons) +AC_SUBST(add_on_subdirs) + + +### +### I put this here to prevent those annoying emails from people who cannot +### read and try to compile glibc on unsupported platforms. --drepper +### +### By using the undocumented --enable-hacker-mode option for configure +### one can skip this test to make the configuration not fail for unsupported +### platforms. +### +if test -z "$enable_hacker_mode" && test x"$libc_config_ok" != xyes; then + case "$machine-$host_os" in + *-linux* | *-gnu*) + ;; + *) + echo "*** The GNU C library is currently not available for this platform." + echo "*** So far nobody cared to port it and if there is no volunteer it" + echo "*** might never happen. So, if you have interest to see glibc on" + echo "*** this platform visit" + echo "*** http://www.gnu.org/software/libc/porting.html" + echo "*** and join the group of porters" + exit 1 + ;; + esac +fi + +dnl We need to use [ and ] for other purposes for a while now. +changequote(,)dnl +# Expand the configuration machine name into a subdirectory by architecture +# type and particular chip. If an add-on configure fragment already set +# base_machine, we don't change it. +test -n "$base_machine" || case "$machine" in +i[4567]86) base_machine=i386 machine=i386/$machine ;; +powerpc64*) base_machine=powerpc machine=powerpc/powerpc64 ;; +powerpc*) base_machine=powerpc machine=powerpc/powerpc32 ;; +s390) base_machine=s390 machine=s390/s390-32 ;; +s390x) base_machine=s390 machine=s390/s390-64 ;; +sh3*) base_machine=sh machine=sh/sh3 ;; +sh4*) base_machine=sh machine=sh/sh4 ;; +sparc | sparcv[67]) + base_machine=sparc machine=sparc/sparc32 ;; +sparcv8 | supersparc | hypersparc) + base_machine=sparc machine=sparc/sparc32/sparcv8 ;; +sparcv8plus | sparcv8plusa | sparcv9) + base_machine=sparc machine=sparc/sparc32/sparcv9 ;; +sparcv8plusb | sparcv9b) + base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9b ;; +sparcv9v) + base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v ;; +sparcv9v2) + base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v2 ;; +sparc64) + base_machine=sparc machine=sparc/sparc64 ;; +sparc64b) + base_machine=sparc machine=sparc/sparc64/sparcv9b ;; +sparc64v) + base_machine=sparc machine=sparc/sparc64/sparcv9v ;; +sparc64v2) + base_machine=sparc machine=sparc/sparc64/sparcv9v2 ;; +*) base_machine=$machine ;; +esac +changequote([,])dnl +AC_SUBST(base_machine) + +if test "$base_machine" = "i386"; then + AC_DEFINE(USE_REGPARMS) +fi + +# For the multi-arch option we need support in the assembler & linker. +AC_CACHE_CHECK([for assembler and linker STT_GNU_IFUNC support], + libc_cv_ld_gnu_indirect_function, [dnl +cat > conftest.S <&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then + # Do a link to see if the backend supports IFUNC relocs. + $READELF -r conftest 1>&AS_MESSAGE_LOG_FD + LC_ALL=C $READELF -r conftest | grep 'no relocations' >/dev/null || { + libc_cv_ld_gnu_indirect_function=yes + } +fi +rm -f conftest*]) + +AC_MSG_CHECKING(whether .text pseudo-op must be used) +AC_CACHE_VAL(libc_cv_dot_text, [dnl +cat > conftest.s <&AS_MESSAGE_LOG_FD); then + libc_cv_dot_text=.text +fi +rm -f conftest*]) +if test -z "$libc_cv_dot_text"; then + AC_MSG_RESULT(no) +else + AC_MSG_RESULT(yes) +fi + +if test x"$libc_cv_ld_gnu_indirect_function" != xyes; then + if test x"$multi_arch" = xyes; then + AC_MSG_ERROR([--enable-multi-arch support requires assembler and linker support]) + else + multi_arch=no + fi +fi +multi_arch_d= +if test x"$multi_arch" != xno; then + multi_arch_d=/multiarch +fi + +# Compute the list of sysdep directories for this configuration. +# This can take a while to compute. +sysdep_dir=$srcdir/sysdeps +AC_MSG_CHECKING(sysdep dirs) +dnl We need to use [ and ] for other purposes for a while now. +changequote(,)dnl +# Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. +os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" + +test "x$base_os" != x || case "$os" in +gnu*) + base_os=mach/hurd ;; +linux*) + base_os=unix/sysv ;; +esac + +# For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. +tail=$os +ostry=$os +while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do + ostry="$ostry /$o" + tail=$o +done +o=`echo $tail | sed 's/[0-9]*$//'` +if test $o != $tail; then + ostry="$ostry /$o" +fi +# For linux-gnu, try linux-gnu, then linux. +o=`echo $tail | sed 's/-.*$//'` +if test $o != $tail; then + ostry="$ostry /$o" +fi + +# For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. +base= +tail=$base_os +while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do + set $b + base="$base /$1" + tail="$2" +done + +# For sparc/sparc32, try sparc/sparc32 and then sparc. +mach= +tail=$machine${submachine:+/$submachine} +while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do + set $m + # Prepend the machine's FPU directory unless --without-fp. + if test "$with_fp" = yes; then + maybe_fpu=/fpu + else + maybe_fpu=/nofpu + fi + # For each machine term, try it with and then without /multiarch. + for try_fpu in $maybe_fpu ''; do + for try_multi in $multi_arch_d ''; do + mach="$mach /$1$try_fpu$try_multi" + done + done + tail="$2" +done + +dnl We are done with glob and regexp uses of [ and ]; return to autoconf. +changequote([,])dnl + +# Find what sysdep directories exist. +sysnames_add_ons= +sysnames= +for b in $base ''; do + for m0 in $mach ''; do + for v in /$vendor ''; do + test "$v" = / && continue + for o in /$ostry ''; do + test "$o" = / && continue + for m in $mach ''; do + for d in $add_ons_pfx ''; do + for a in $add_ons_sfx ''; do + try_suffix="$m0$b$v$o$m" + if test -n "$try_suffix"; then + try_srcdir="${srcdir}/" + case "$d" in + /*) try_srcdir= ;; + esac + try="${d}sysdeps$try_suffix$a" + test -n "$enable_debug_configure" && + echo "$0 [DEBUG]: try $try" >&2 + if test -d "$try_srcdir$try"; then + sysnames="$sysnames $try" + { test -n "$o" || test -n "$b"; } && os_used=t + { test -n "$m" || test -n "$m0"; } && machine_used=t + case x${m0:-$m} in + x*/$submachine) submachine_used=t ;; + esac + if test -n "$d"; then + case "$sysnames_add_ons" in + *" $d "*) ;; + *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; + esac + fi + fi + fi + done + done + done + done + done + done +done + +# If the assembler supports gnu_indirect_function symbol type and the +# architecture supports multi-arch, we enable multi-arch by default. +case $sysnames_add_ons$sysnames in +*"$multi_arch_d"*) + ;; +*) + test x"$multi_arch" = xdefault && multi_arch=no + ;; +esac +if test x"$multi_arch" != xno; then + AC_DEFINE(USE_MULTIARCH) +fi +AC_SUBST(multi_arch) + +if test -z "$os_used" && test "$os" != none; then + AC_MSG_ERROR(Operating system $os is not supported.) +fi +if test -z "$machine_used" && test "$machine" != none; then + AC_MSG_ERROR(The $machine is not supported.) +fi +if test -z "$submachine_used" && test -n "$submachine"; then + AC_MSG_ERROR(The $submachine subspecies of $host_cpu is not supported.) +fi +AC_SUBST(submachine) + +# We have now validated the configuration. + +# Expand the list of system names into a full list of directories +# from each element's parent name and Implies file (if present). +set $sysnames +names= +while test $# -gt 0; do + name=$1 + shift + + case " $names " in *" $name "*) + # Already in the list. + continue + esac + + # Report each name as we discover it, so there is no long pause in output. + echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD + + name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` + + case $name in + /*) xsrcdir= ;; + *) xsrcdir=$srcdir/ ;; + esac + test -n "$enable_debug_configure" && + echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 + + for implies_file in Implies Implies-before Implies-after; do + implies_type=`echo $implies_file | sed s/-/_/` + eval ${implies_type}= + if test -f $xsrcdir$name/$implies_file; then + # Collect more names from the `Implies' file (removing comments). + implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/$implies_file`" + for x in $implied_candidate; do + found=no + if test -d $xsrcdir$name_base/$x; then + eval "${implies_type}=\"\$${implies_type} \$name_base/\$x\"" + found=yes + fi + for d in $add_ons_pfx ''; do + try="${d}sysdeps/$x" + case $d in + /*) try_srcdir= ;; + *) try_srcdir=$srcdir/ ;; + esac + test -n "$enable_debug_configure" && + echo "[DEBUG]: $name $implies_file $x try($d) {$try_srcdir}$try" >&2 + if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; + then + eval "${implies_type}=\"\$${implies_type} \$try\"" + found=yes + case "$sysnames_add_ons" in + *" $d "*) ;; + *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; + esac + fi + done + if test $found = no; then + AC_MSG_WARN($name/$implies_file specifies nonexistent $x) + fi + done + fi + done + + # Add NAME to the list of names. + names="$names $name" + + # Find the parent of NAME, using the empty string if it has none. +changequote(,)dnl + parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" +changequote([,])dnl + + test -n "$enable_debug_configure" && + echo "[DEBUG]: $name Implies='$Implies' rest='$*' parent='$parent' \ +Implies_before='$Implies_before' Implies_after='$Implies_after'" >&2 + + # Add the names implied by NAME, and NAME's parent (if it has one), to + # the list of names to be processed (the argument list). We prepend the + # implied names to the list and append the parent. We want implied + # directories to come before further directories inferred from the + # configuration components; this ensures that for sysv4, unix/common + # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) + # after sysv4). + sysnames="`echo $Implies $* $Implies_before $parent $Implies_after`" + test -n "$sysnames" && set $sysnames +done + +# Add the default directories. +default_sysnames="sysdeps/generic" +sysnames="$names $default_sysnames" +AC_SUBST(sysnames) +# The other names were emitted during the scan. +AC_MSG_RESULT($default_sysnames) + +# Collect the list of add-ons that supply partial sysdeps trees. +sysdeps_add_ons= +for add_on in $add_ons; do + case "$add_on" in + /*) xsrcdir= ;; + *) xsrcdir="$srcdir/" ;; + esac + + test -d "$xsrcdir$add_on/sysdeps" || { + case "$configured_add_ons " in + *" $add_on "*) ;; + *|'') + AC_MSG_ERROR(add-on $add_on has no configure fragment or sysdeps tree) + ;; + esac + continue + } + + sysdeps_add_ons="$sysdeps_add_ons $add_on" + case "$sysnames_add_ons" in + *" $add_on/ "*) ;; + *|'') + AC_MSG_WARN(add-on $add_on contributed no sysdeps directories) + continue ;; + esac + + found=no + for d in $sysnames; do + case "$d" in + $add_on/sysdeps/*) ;; + *) continue ;; + esac + (cd "$xsrcdir$d" && for f in *[[!~]]; do + case "$f" in + sys|bits) + for ff in $f/*.h; do + test -d "$ff" || { test -e "$ff" && exit 88; } + done + ;; + *) + test -d "$f" || { test -e "$f" && exit 88; } + ;; + esac + done) + if test $? -eq 88; then + found=yes + break + fi + done + if test $found = no; then + AC_MSG_WARN(add-on $add_on contributed no useful sysdeps directories) + fi +done +AC_SUBST(sysdeps_add_ons) + + +### Locate tools. + +AC_PROG_INSTALL +if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then + # The makefiles need to use a different form to find it in $srcdir. + INSTALL='\$(..)./scripts/install-sh -c' +fi +AC_PROG_LN_S + +LIBC_PROG_BINUTILS + +# Accept binutils 2.20 or newer. +AC_CHECK_PROG_VER(AS, $AS, --version, + [GNU assembler.* \([0-9]*\.[0-9.]*\)], + [2.1[0-9][0-9]*|2.[2-9][0-9]*|[3-9].*|[1-9][0-9]*], AS=: critic_missing="$critic_missing as") +AC_CHECK_PROG_VER(LD, $LD, --version, + [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], + [2.1[0-9][0-9]*|2.[2-9][0-9]*|[3-9].*|[1-9][0-9]*], LD=: critic_missing="$critic_missing ld") + +# These programs are version sensitive. +AC_CHECK_TOOL_PREFIX +AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, + [version \([egcygnustpi-]*[0-9.]*\)], [4.[4-9].* | 4.[1-9][0-9].* | [5-9].* ], + critic_missing="$critic_missing gcc") +AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, + [GNU Make[^0-9]*\([0-9][0-9.]*\)], + [3.79* | 3.[89]*], critic_missing="$critic_missing make") + +AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, + [GNU gettext.* \([0-9]*\.[0-9.]*\)], + [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*], + MSGFMT=: aux_missing="$aux_missing msgfmt") +AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, + [GNU texinfo.* \([0-9][0-9.]*\)], + [4.[5-9]*|4.[1-9][0-9]*|[5-9].*], + MAKEINFO=: aux_missing="$aux_missing makeinfo") +AC_CHECK_PROG_VER(SED, sed, --version, + [GNU sed[^0-9]* \([0-9]*\.[0-9.]*\)], + [3.0[2-9]*|3.[1-9]*|[4-9]*], + SED=: aux_missing="$aux_missing sed") +AC_CHECK_PROG_VER(AWK, gawk, --version, + [GNU Awk[^0-9]*\([0-9][0-9.]*\)], + [3.1.[2-9]*|3.[2-9]*|[4-9]*], critic_missing="$critic_missing gawk") + +AC_CHECK_TOOL(NM, nm, false) + +AC_CHECK_PROGS(AUTOCONF, autoconf, no) +case "x$AUTOCONF" in +xno|x|x:) AUTOCONF=no ;; +*) + AC_CACHE_CHECK(dnl +whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl + if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then + libc_cv_autoconf_works=yes + else + libc_cv_autoconf_works=no + fi]) + test $libc_cv_autoconf_works = yes || AUTOCONF=no + ;; +esac +if test "x$AUTOCONF" = xno; then + aux_missing="$aux_missing autoconf" +fi + +test -n "$critic_missing" && AC_MSG_ERROR([ +*** These critical programs are missing or too old:$critic_missing +*** Check the INSTALL file for required versions.]) + +test -n "$aux_missing" && AC_MSG_WARN([ +*** These auxiliary programs are missing or incompatible versions:$aux_missing +*** some features will be disabled. +*** Check the INSTALL file for required versions.]) + +# if using special system headers, find out the compiler's sekrit +# header directory and add that to the list. NOTE: Only does the right +# thing on a system that doesn't need fixincludes. (Not presently a problem.) +if test -n "$sysheaders"; then + SYSINCLUDES=-nostdinc + for d in include include-fixed; do + i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" && + SYSINCLUDES="$SYSINCLUDES -isystem $i" + done + SYSINCLUDES="$SYSINCLUDES \ +-isystem `echo $sysheaders | sed 's/:/ -isystem /g'`" + if test -n "$CXX"; then + CXX_SYSINCLUDES= + for cxxheaders in `$CXX -v -S -x c++ /dev/null -o /dev/null 2>&1 \ + | sed -n -e '1,/#include/d' -e 's/^ \(\/.*\/[cg]++\)/\1/p'`; do + test "x$cxxheaders" != x && + CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders" + done + fi +fi +AC_SUBST(SYSINCLUDES) +AC_SUBST(CXX_SYSINCLUDES) + +# Test if LD_LIBRARY_PATH contains the notation for the current directory +# since this would lead to problems installing/building glibc. +# LD_LIBRARY_PATH contains the current directory if one of the following +# is true: +# - one of the terminals (":" and ";") is the first or last sign +# - two terminals occur directly after each other +# - the path contains an element with a dot in it +AC_MSG_CHECKING(LD_LIBRARY_PATH variable) +changequote(,)dnl +case ${LD_LIBRARY_PATH} in + [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) + ld_library_path_setting="contains current directory" + ;; + *) + ld_library_path_setting="ok" + ;; +esac +changequote([,])dnl +AC_MSG_RESULT($ld_library_path_setting) +if test "$ld_library_path_setting" != "ok"; then +AC_MSG_ERROR([ +*** LD_LIBRARY_PATH shouldn't contain the current directory when +*** building glibc. Please change the environment variable +*** and run configure again.]) +fi + +AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl +if $CC -v -static-libgcc 2>&1 | grep 'unrecognized option.*static-libgcc' >/dev/null; then + libc_cv_gcc_static_libgcc= +else + libc_cv_gcc_static_libgcc=-static-libgcc +fi]) +AC_SUBST(libc_cv_gcc_static_libgcc) + +AC_PATH_PROG(BASH_SHELL, bash, no) +if test "$BASH_SHELL" != no && + $BASH_SHELL -c 'test "$BASH_VERSINFO" \ + && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then + libc_cv_have_bash2=yes +else + libc_cv_have_bash2=no +fi +AC_SUBST(libc_cv_have_bash2) + +dnl We need a ksh compatible shell for tzselect. +if test "$BASH_SHELL" = no; then + AC_PATH_PROG(KSH, ksh, no) + if test "$KSH" = no; then + libc_cv_have_ksh=no + else + libc_cv_have_ksh=yes + fi +else + KSH="$BASH_SHELL" + AC_SUBST(KSH) + libc_cv_have_ksh=yes +fi +AC_SUBST(libc_cv_have_ksh) + +AC_PATH_PROG(PERL, perl, no) +if test "$PERL" != no && + (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then + PERL=no +fi +AC_PATH_PROG(INSTALL_INFO, install-info, no, + $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) +AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin) + +AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl +AC_TRY_COMPILE(dnl +[#define __need_size_t +#define __need_wchar_t +#include +#define __need_NULL +#include ], [size_t size; wchar_t wchar; +#ifdef offsetof +#error stddef.h ignored __need_* +#endif +if (&size == NULL || &wchar == NULL) abort ();], + libc_cv_friendly_stddef=yes, + libc_cv_friendly_stddef=no)]) +if test $libc_cv_friendly_stddef = yes; then + config_vars="$config_vars +override stddef.h = # The installed seems to be libc-friendly." +fi + +AC_CACHE_CHECK(whether we need to use -P to assemble .S files, + libc_cv_need_minus_P, [dnl +cat > conftest.S <&AS_MESSAGE_LOG_FD); then + libc_cv_need_minus_P=no +else + libc_cv_need_minus_P=yes +fi +rm -f conftest*]) +if test $libc_cv_need_minus_P = yes; then + config_vars="$config_vars +asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." +fi + +AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl +cat > conftest.s < conftest1.c <<\EOF +extern int glibc_conftest_frobozz; +void _start() { glibc_conftest_frobozz = 1; } +EOF +if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ + -nostartfiles -nostdlib \ + -o conftest conftest.s conftest1.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then + libc_cv_asm_set_directive=yes +else + libc_cv_asm_set_directive=no +fi +rm -f conftest*]) +if test $libc_cv_asm_set_directive = yes; then + AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) +fi + +AC_CACHE_CHECK(for assembler gnu_unique_object symbol type, + libc_cv_asm_unique_object, [dnl +cat > conftest.s <&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then + libc_cv_asm_unique_object=yes +else + libc_cv_asm_unique_object=no +fi +rm -f conftest*]) +if test $libc_cv_asm_unique_object = yes; then + AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT) +fi + +AC_CACHE_CHECK(for .previous assembler directive, + libc_cv_asm_previous_directive, [dnl +cat > conftest.s <&AS_MESSAGE_LOG_FD); then + libc_cv_asm_previous_directive=yes +else + libc_cv_asm_previous_directive=no +fi +rm -f conftest*]) +if test $libc_cv_asm_previous_directive = yes; then + AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) +else + AC_CACHE_CHECK(for .popsection assembler directive, + libc_cv_asm_popsection_directive, [dnl + cat > conftest.s <&AS_MESSAGE_LOG_FD); then + libc_cv_asm_popsection_directive=yes + else + libc_cv_asm_popsection_directive=no + fi + rm -f conftest*]) + if test $libc_cv_asm_popsection_directive = yes; then + AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) + fi +fi +AC_CACHE_CHECK(for .protected and .hidden assembler directive, + libc_cv_asm_protected_directive, [dnl +cat > conftest.s <&AS_MESSAGE_LOG_FD); then + libc_cv_asm_protected_directive=yes +else + AC_MSG_ERROR(assembler support for symbol visibility is required) +fi +rm -f conftest*]) + +if test $libc_cv_asm_protected_directive = yes; then + AC_CACHE_CHECK(whether __attribute__((visibility())) is supported, + libc_cv_visibility_attribute, + [cat > conftest.c <&AS_MESSAGE_LOG_FD); then + if grep '\.hidden.*foo' conftest.s >/dev/null; then + if grep '\.protected.*bar' conftest.s >/dev/null; then + libc_cv_visibility_attribute=yes + fi + fi + fi + rm -f conftest.{c,s} + ]) + if test $libc_cv_visibility_attribute != yes; then + AC_MSG_ERROR(compiler support for visibility attribute is required) + fi +fi + +if test $libc_cv_visibility_attribute = yes; then + AC_CACHE_CHECK(for broken __attribute__((visibility())), + libc_cv_broken_visibility_attribute, + [cat > conftest.c <&AS_MESSAGE_LOG_FD); then +changequote(,)dnl + if grep '\.hidden[ _]foo' conftest.s >/dev/null; then +changequote([,])dnl + libc_cv_broken_visibility_attribute=no + fi + fi + rm -f conftest.c conftest.s + ]) + if test $libc_cv_broken_visibility_attribute = yes; then + AC_MSG_ERROR(working compiler support for visibility attribute is required) + fi +fi + +AC_CACHE_CHECK(for broken __attribute__((alias())), + libc_cv_broken_alias_attribute, + [cat > conftest.c <&AS_MESSAGE_LOG_FD); then + if grep 'xyzzy' conftest.s >/dev/null && + grep 'abccb' conftest.s >/dev/null; then + libc_cv_broken_alias_attribute=no + fi + fi + rm -f conftest.c conftest.s + ]) +if test $libc_cv_broken_alias_attribute = yes; then + AC_MSG_ERROR(working alias attribute support required) +fi + +if test $libc_cv_visibility_attribute = yes; then + AC_CACHE_CHECK(whether to put _rtld_local into .sdata section, + libc_cv_have_sdata_section, + [echo "int i;" > conftest.c + libc_cv_have_sdata_section=no + if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \ + | grep '\.sdata' >/dev/null; then + libc_cv_have_sdata_section=yes + fi + rm -f conftest.c conftest.so + ]) + if test $libc_cv_have_sdata_section = yes; then + AC_DEFINE(HAVE_SDATA_SECTION) + fi +fi + +AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, + libc_cv_initfini_array, [dnl +LIBC_TRY_LINK_STATIC([ +int foo (void) { return 1; } +int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; +], + [if $READELF -S conftest | fgrep INIT_ARRAY > /dev/null; then + libc_cv_initfini_array=yes + else + libc_cv_initfini_array=no + fi], + [libc_cv_initfini_array=no]) +]) +if test $libc_cv_initfini_array != yes; then + AC_MSG_ERROR([Need linker with .init_array/.fini_array support.]) +fi + +AC_CACHE_CHECK(whether to use .ctors/.dtors header and trailer, + libc_cv_ctors_header, [dnl + libc_cv_ctors_header=yes + LIBC_TRY_LINK_STATIC([ +__attribute__ ((constructor)) void ctor (void) { asm (""); } +__attribute__ ((destructor)) void dtor (void) { asm (""); } +], + [dnl + AS_IF([$READELF -WS conftest$ac_exeext | $AWK ' + { gsub(/\@<:@ */, "@<:@") } + $2 == ".ctors" || $2 == ".dtors" { + size = strtonum("0x" $6) + align = strtonum("0x" $NF) + seen@<:@$2@:>@ = 1 + stub@<:@$2@:>@ = size == align * 2 + } + END { + ctors_ok = !seen@<:@".ctors"@:>@ || stub@<:@".ctors"@:>@ + dtors_ok = !seen@<:@".dtors"@:>@ || stub@<:@".dtors"@:>@ + exit ((ctors_ok && dtors_ok) ? 0 : 1) + } + '], [libc_cv_ctors_header=no]) + ], [dnl + AC_MSG_ERROR([missing __attribute__ ((constructor)) support??]) + ]) +]) +if test $libc_cv_ctors_header = no; then + AC_DEFINE(NO_CTORS_DTORS_SECTIONS) +fi + +AC_CACHE_CHECK(for libunwind-support in compiler, + libc_cv_cc_with_libunwind, [ + cat > conftest.c <&1 >/dev/null | grep ' -lunwind ' >/dev/null; then + libc_cv_cc_with_libunwind=yes + else + libc_cv_cc_with_libunwind=no + fi + rm -f conftest*]) +AC_SUBST(libc_cv_cc