Fixed bug 978

 Yann Leprince      2010-03-31 11:07:53 PDT

Please add a #serial line as below to sdl.m4 and increase the serial number
with each revision of this file. This allows using aclocal --install, thereby
enabling automatic updating of sdl.m4 in SDL-based packages that distribute it.

# serial 1

The complete documentation and rationale for #serial can be found in the
Automake documentation:
<http://www.gnu.org/software/automake/manual/html_node/Serials.html>.

sdl.m4

@@ -5,6 +5,8 @@
 # stolen from Manish Singh
 # Shamelessly stolen from Owen Taylor
 
+# serial 1
+
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl