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authorIvan Maidanski <ivmai@mail.ru>2016-11-22 04:48:41 +0300
committerIvan Maidanski <ivmai@mail.ru>2016-11-22 04:48:41 +0300
commit58ce63e1ff80cf0464d56c76818bef1b05407113 (patch)
tree2b369a0064da795e254719e404ab802e50b8c402
parent96a8fd9b3b0ce90c6bed6cb94cd2904cb7a12d2c (diff)
downloadlibatomic_ops-58ce63e1ff80cf0464d56c76818bef1b05407113.tar.gz
Fix GCC -Wpedantic checking in configure
(fix commit 96a8fd9) * configure.ac [GCC] (ac_cv_cc_pedantic): Compile code that contains "extern int quiet" (since the translation unit cannot be empty).
-rw-r--r--configure.ac4
1 files changed, 3 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 055167a..796dccd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,9 @@ if test "$GCC" = yes; then
AS_IF([test "$ac_cv_cc_wextra" = yes], [WEXTRA="-Wextra"], [WEXTRA="-W"])
AC_MSG_CHECKING(for gcc -Wpedantic)
CFLAGS="-Wpedantic -Wno-long-long $CFLAGS"
- AC_TRY_COMPILE([],[], [ac_cv_cc_pedantic=yes], [ac_cv_cc_pedantic=no])
+ AC_TRY_COMPILE([],[
+extern int quiet;
+ ], [ac_cv_cc_pedantic=yes], [ac_cv_cc_pedantic=no])
CFLAGS="$old_CFLAGS"
AC_MSG_RESULT($ac_cv_cc_pedantic)
WPEDANTIC=