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authorJesse Thilo <jthilo@gnu.org>2000-04-13 18:03:25 +0000
committerJesse Thilo <jthilo@gnu.org>2000-04-13 18:03:25 +0000
commit630f52125883755101f5958d3529b1df505ae5c7 (patch)
tree88d49de933cc49d705bdbb2019445402ebfd3f24 /m4
parente1edb685d97f3b0a0dd70a7e7be73908c00176da (diff)
downloadbison-630f52125883755101f5958d3529b1df505ae5c7.tar.gz
# added --enable-gcc-warnings (not for user consumption).
Diffstat (limited to 'm4')
-rw-r--r--m4/warning.m411
1 files changed, 11 insertions, 0 deletions
diff --git a/m4/warning.m4 b/m4/warning.m4
new file mode 100644
index 00000000..d169d5a7
--- /dev/null
+++ b/m4/warning.m4
@@ -0,0 +1,11 @@
+AC_DEFUN(BISON_WARNING,
+[AC_MSG_CHECKING(whether compiler accepts $1)
+AC_SUBST(WARNING_CFLAGS)
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $1"
+AC_TRY_COMPILE(,
+[int x;],
+WARNING_CFLAGS="$WARNING_CFLAGS $1"
+AC_MSG_RESULT(yes),
+AC_MSG_RESULT(no))
+CFLAGS="$ac_save_CFLAGS"])