| 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(AC_FD_MSG,6)dnl Autoconf lossage. |
| define(AC_FD_CC,5)dnl Autoconf lossage. |
| AC_DEFUN([GLIBC_PROVIDES], [dnl |
| AC_PROVIDE([AC_PROG_INSTALL])dnl |
| AC_PROVIDE([AC_PROG_RANLIB])dnl |
| AC_PROVIDE([AC_PROG_CC])dnl |
| AC_PROVIDE([AC_PROG_CPP])dnl |
| # This file is generated from configure.in by Autoconf. DO NOT EDIT! |
| ])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. |
| dnl In the situation that cross-linking is impossible, the variable |
| dnl `cross_linkable' will be substituted with "yes". |
| dnl The vercheck macros are expected to have been called already. |
| AC_DEFUN(AC_PROG_CC_LOCAL, |
| [AC_BEFORE([$0], [AC_PROG_CPP])dnl |
| |
| AC_PROG_CC_WORKS_LOCAL |
| AC_PROG_CC_GNU |
| if test $ac_cv_prog_gcc != yes; then |
| AC_MSG_ERROR([GNU libc must be compiled using GNU CC]) |
| fi |
| ]) |
| |
| AC_DEFUN(AC_PROG_CC_WORKS_LOCAL, |
| [AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) works]) |
| AC_CACHE_VAL(ac_cv_prog_cc_works, |
| [AC_LANG_SAVE |
| AC_LANG_C |
| AC_TRY_COMPILER([main(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross) |
| AC_LANG_RESTORE]) |
| AC_MSG_RESULT($ac_cv_prog_cc_works) |
| if test $ac_cv_prog_cc_works = no; then |
| cross_linkable=no |
| ac_cv_prog_cc_cross=yes |
| dnl AC_MSG_ERROR([installation or configuration problem: C compiler cannot create executables.]) |
| else |
| cross_linkable=yes |
| fi |
| AC_CACHE_CHECK( |
| [whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler], |
| ac_cv_prog_cc_cross, [:]) |
| AC_SUBST(cross_linkable) |
| cross_compiling=$ac_cv_prog_cc_cross |
| ]) |
| |
| AC_DEFUN(LIBC_PROG_FOO_GNU, |
| [# Most GNU programs take a -v and spit out some text including |
| # the word 'GNU'. Some try to read stdin, so give them /dev/null. |
| if $1 -v </dev/null 2>&1 | grep GNU > /dev/null 2>&1; then |
| $2 |
| else |
| $3 |
| fi]) |
| |
| AC_DEFUN(LIBC_PROG_BINUTILS, |
| [# Was a --with-binutils option given? |
| if test -n "$path_binutils"; then |
| # Make absolute; ensure a single trailing slash. |
| path_binutils=`(cd $path_binutils; pwd) | sed 's%/*$%/%'` |
| CC="$CC -B$path_binutils" |
| fi |
| AS=`$CC -print-prog-name=as` |
| LD=`$CC -print-prog-name=ld` |
| |
| # Determine whether we are using GNU binutils. |
| 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 |
| ]) |