[COMMITTED] configure.ac: Use AC_LINK_IFELSE for -gz=none check

Mark Wielaard mark@klomp.org
Fri Jan 27 14:26:26 GMT 2023


Because of a bug in gcc 13.0 (pre-release) -gz=none does not work
correctly when linking the final binary in some situations (when
-gz=zstd isn't supported). Work around this by explicitly checking for
support with AC_LINK_IFELSE.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108572

Signed-off-by: Mark Wielaard <mark@klomp.org>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f2d1571..1d77e99 100644
--- a/configure.ac
+++ b/configure.ac
@@ -125,7 +125,7 @@ AC_SUBST([DWARF_5_DEBUGLINE])
 AC_CACHE_CHECK([whether gcc supports -gz=none], ac_cv_gz_none, [dnl
 save_CFLAGS="$CFLAGS"
 CFLAGS="-gz=none"
-AC_COMPILE_IFELSE([AC_LANG_SOURCE()], ac_cv_gz_none=yes, ac_cv_gz_none=no)
+AC_LINK_IFELSE([AC_LANG_SOURCE()], ac_cv_gz_none=yes, ac_cv_gz_none=no)
 CFLAGS="$save_CFLAGS"
 ])
 if test "$ac_cv_gz_none" = "yes"; then
-- 
2.39.1



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