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| author | Max Kellermann <max@duempel.org> | 2014-06-11 08:08:33 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2014-06-11 08:08:33 +0200 |
| commit | 044c81b644810e003a51f3178b413e01f3eb5088 (patch) | |
| tree | 30f0e30a9258a117cde1429c69077e8bed4e6393 /m4/ax_check_link_flag.m4 | |
| parent | 507d8fdc6f63800cd022d77fbe2ccbdac097759f (diff) | |
m4: update to autoconf-archive 20140228
Diffstat (limited to 'm4/ax_check_link_flag.m4')
| -rw-r--r-- | m4/ax_check_link_flag.m4 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/m4/ax_check_link_flag.m4 b/m4/ax_check_link_flag.m4 index e2d0d363e..db899ddd0 100644 --- a/m4/ax_check_link_flag.m4 +++ b/m4/ax_check_link_flag.m4 @@ -4,7 +4,7 @@ # # SYNOPSIS # -# AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS]) +# AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) # # DESCRIPTION # @@ -19,6 +19,8 @@ # EXTRA-FLAGS FLAG". This can for example be used to force the linker to # issue an error when a bad flag is given. # +# INPUT gives an alternative input source to AC_LINK_IFELSE. +# # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this # macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG. # @@ -53,14 +55,14 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 2 +#serial 3 AC_DEFUN([AX_CHECK_LINK_FLAG], [AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ ax_check_save_flags=$LDFLAGS LDFLAGS="$LDFLAGS $4 $1" - AC_LINK_IFELSE([AC_LANG_PROGRAM()], + AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) LDFLAGS=$ax_check_save_flags]) |