X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=configure.ac;h=119f002bc27993b190e397e250eed630ba1c971e;hb=45bea0f2fdd5d1e938b0b8c0c2044e4d7bd2e0d2;hp=c588cba2dd26bb7c66cfcc72403461d14a38faf2;hpb=f6c255363e0b0e53571b95b8cb065a0f1758d2fb;p=xboard.git

diff --git a/configure.ac b/configure.ac
index c588cba..119f002 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@ dnl| to regenerate configure.  Then submit your changes to be folded into
 dnl| the standard version of xboard.
 
 dnl| define second argument as VERSION.PATCHLEVEL. e.g. 4.4.0j
-AC_INIT([xboard],[master-20120310],[bug-xboard@gnu.org])
+AC_INIT([xboard],[master-20120410],[bug-xboard@gnu.org])
 
 dnl| need this to be able to compile some files in a subdir (filebrowser)
 AM_INIT_AUTOMAKE([subdir-objects])
@@ -110,6 +110,15 @@ AC_CHECK_FUNC(setlocale, [],
 
 AC_CHECK_LIB(seq, getpseudotty)
 
+dnl | add compiler warnings only if compiler understands them
+AC_MSG_CHECKING(whether compiler understands -Wall -Wno-parentheses)
+SAVE_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wall -Wno-parentheses"
+AC_TRY_COMPILE([],[],
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+  CFLAGS="$SAVE_CFLAGS")
+
 
 dnl | check for X-libraries
 AC_PATH_XTRA