diff options
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index bf1ad40e2a..3c8e794d21 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -90,3 +90,31 @@ AC_MSG_RESULT($ac_cv_prog_cc_cross) AC_SUBST(cross_linkable) cross_compiling=$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 -q GNU; 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="$CC -B$with_binutils" +fi +AS=`$CC -print-file-name=as` +LD=`$CC -print-file-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)]) +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]) |