add -Wundef compiler flag, to catch typo in #if or similar situations

Originally committed as revision 16621 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-16 00:37:38 +00:00 · 2009-01-16 00:37:38 +00:00 · 764551c672
commit 764551c672
parent 8b192330d5
1 changed files with 1 additions and 0 deletions
--- a/1
+++ b/1
@ -2045,6 +2045,7 @@ check_cflags -Wno-pointer-sign
 check_cflags -Wcast-qual
 check_cflags -Wwrite-strings
 check_cflags -Wtype-limits
+check_cflags -Wundef
 enabled extra_warnings && check_cflags -Winline

 # add some linker flags