dnl We require that everyone use exactly the same Autoconf version so that dnl the internal functions defined and used by the main configure script dnl match those expected by the fragments. m4_define([GLIBC_AUTOCONF_VERSION], [2.68]) m4_if(m4_defn([AC_AUTOCONF_VERSION]), GLIBC_AUTOCONF_VERSION, [], [m4_fatal(m4_flatten( Exactly version GLIBC_AUTOCONF_VERSION of Autoconf is required but you have 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 AC_REQUIREs or AC_BEFOREs duplicating their code. dnl define([GLIBC_PROVIDES], [dnl AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl AC_PROVIDE([AC_CONFIG_SUBDIRS])dnl AC_PROVIDE([_AS_ECHO_N_PREPARE])dnl AC_PROVIDE([_AS_ECHO_PREPARE])dnl AC_PROVIDE([_AS_CR_PREPARE])dnl AC_PROVIDE([_AS_TR_SH_PREPARE])dnl AC_PROVIDE([_AS_VAR_ARITH_PREPARE])dnl AC_PROVIDE([AC_PROG_INSTALL])dnl AC_PROVIDE([AC_PROG_CC])dnl AC_PROVIDE([AC_PROG_CPP])dnl AC_PROVIDE([_AS_PATH_SEPARATOR_PREPARE])dnl AC_PROVIDE([_AS_TEST_PREPARE])dnl AC_PROVIDE([_AS_BASENAME_PREPARE])dnl AC_PROVIDE([_AS_ME_PREPARE])dnl AC_PROVIDE([_AS_LINENO_PREPARE])dnl AC_PROVIDE([AS_SHELL_FN_as_fn_set_status])dnl AC_PROVIDE([AS_SHELL_FN_as_fn_exit])dnl AC_PROVIDE([AS_SHELL_FN_as_fn_arith])dnl AC_PROVIDE([AS_SHELL_FN_ac_fn_c_try_compile])dnl define([AS_MESSAGE_LOG_FD],5)dnl define([AS_MESSAGE_FD],6)dnl 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! define([_AC_LANG], [C])dnl ])dnl dnl dnl Check for a symbol dnl AC_DEFUN([AC_CHECK_SYMBOL], [dnl AC_MSG_CHECKING(for $1) AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl AC_TRY_LINK(, changequote(,)dnl extern char *$1[]; puts(*$1);, changequote([,])dnl ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)]) if test "$ac_cv_check_symbol_$1" = yes; then changequote(,)dnl ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'` changequote([,])dnl AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol}) fi AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl dnl dnl Locate a program and check that its version is acceptable. dnl AC_PROG_CHECK_VER(var, namelist, version-switch, dnl [version-extract-regexp], version-glob [, do-if-fail]) AC_DEFUN([AC_CHECK_PROG_VER], [AC_CHECK_PROGS([$1], [$2]) if test -z "[$]$1"; then ac_verc_fail=yes else # Found it, now check the version. AC_MSG_CHECKING([version of [$]$1]) changequote(<<,>>)dnl ac_prog_version=`<<$>>$1 $3 2>&1 ifelse(<<$4>>,,, <<| sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'>>)` case $ac_prog_version in '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; <<$5>>) changequote([,])dnl ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; esac AC_MSG_RESULT([$ac_prog_version]) fi ifelse([$6],,, [if test $ac_verc_fail = yes; then $6 fi]) ]) dnl These modifications are to allow for an empty cross compiler tree. define([_AC_COMPILER_EXEEXT], [EXEEXT= ]) AC_DEFUN([LIBC_PROG_FOO_GNU], [# Most GNU programs take a -v and spit out some text including # the word 'GNU'. 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AC_CACHE_CHECK(whether $AS is GNU as, libc_cv_prog_as_gnu, [LIBC_PROG_FOO_GNU($AS, libc_cv_prog_as_gnu=yes, libc_cv_prog_as_gnu=no)]) rm -f a.out gnu_as=$libc_cv_prog_as_gnu AC_CACHE_CHECK(whether $LD is GNU ld, libc_cv_prog_ld_gnu, [LIBC_PROG_FOO_GNU($LD, libc_cv_prog_ld_gnu=yes, libc_cv_prog_ld_gnu=no)]) gnu_ld=$libc_cv_prog_ld_gnu ]) dnl Run a static link test with -nostdlib -nostartfiles. dnl LIBC_TRY_LINK_STATIC([code], [action-if-true], [action-if-false]) AC_DEFUN([LIBC_TRY_LINK_STATIC], [cat > conftest.c <<EOF int _start (void) { return 0; } int __start (void) { return 0; } $1 EOF AS_IF([AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD])], [$2], [$3]) rm -f conftest*]) dnl Test a compiler option or options with an empty input file. dnl LIBC_TRY_CC_OPTION([options], [action-if-true], [action-if-false]) AC_DEFUN([LIBC_TRY_CC_OPTION], [AS_IF([AC_TRY_COMMAND([${CC-cc} $1 -xc /dev/null -S -o /dev/null])], [$2], [$3])]) dnl Find and source sysdeps/*/preconfigure. dnl LIBC_PRECONFIGURE([$srcdir], [for]) AC_DEFUN([LIBC_PRECONFIGURE], [dnl if frags=`ls -d $1/sysdeps/*/preconfigure 2> /dev/null` then AC_MSG_CHECKING($2 preconfigure fragments) for frag in $frags; do name=`echo "$frag" | sed 's@/[[^/]]*[$]@@;s@^.*/@@'` echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD . "$frag" done AC_MSG_RESULT() fi]) # These two macros are taken from GCC's config/acx.m4. dnl Support the --with-pkgversion configure option. dnl ACX_PKGVERSION(default-pkgversion) AC_DEFUN([ACX_PKGVERSION],[ AC_ARG_WITH(pkgversion, AS_HELP_STRING([--with-pkgversion=PKG], [Use PKG in the version string in place of "$1"]), [case "$withval" in yes) AC_MSG_ERROR([package version not specified]) ;; no) PKGVERSION= ;; *) PKGVERSION="($withval) " ;; esac], PKGVERSION="($1) " ) PKGVERSION_TEXI=`echo "$PKGVERSION" | sed 's/@/@@/g'` AC_SUBST(PKGVERSION) AC_SUBST(PKGVERSION_TEXI) ]) dnl Support the --with-bugurl configure option. dnl ACX_BUGURL(default-bugurl) AC_DEFUN([ACX_BUGURL],[ AC_ARG_WITH(bugurl, AS_HELP_STRING([--with-bugurl=URL], [Direct users to URL to report a bug]), [case "$withval" in yes) AC_MSG_ERROR([bug URL not specified]) ;; no) BUGURL= ;; *) BUGURL="$withval" ;; esac], BUGURL="$1" ) case ${BUGURL} in "") REPORT_BUGS_TO= REPORT_BUGS_TEXI= ;; *) REPORT_BUGS_TO="<$BUGURL>" REPORT_BUGS_TEXI=@uref{`echo "$BUGURL" | sed 's/@/@@/g'`} ;; esac; AC_SUBST(REPORT_BUGS_TO) AC_SUBST(REPORT_BUGS_TEXI) ]) dnl Check linker option support. dnl LIBC_LINKER_FEATURE([ld_option], [cc_option], [action-if-true], [action-if-false]) AC_DEFUN([LIBC_LINKER_FEATURE], [AC_MSG_CHECKING([for linker that supports $1]) libc_linker_feature=no if test x"$gnu_ld" = x"yes"; then libc_linker_check=`$LD -v --help 2>/dev/null | grep "\$1"` if test -n "$libc_linker_check"; then cat > conftest.c <<EOF int _start (void) { return 42; } EOF if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $2 -nostdlib -nostartfiles -fPIC -shared -o conftest.so conftest.c 1>&AS_MESSAGE_LOG_FD]) then libc_linker_feature=yes fi rm -f conftest* fi fi if test $libc_linker_feature = yes; then $3 else $4 fi AC_MSG_RESULT($libc_linker_feature)])