r3202: *** empty log message ***

[ctsim.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index d13290cce893207a39161816ff089b833a8c502b..93d7a8f07b70817333e766db1a63b99be2f3e483 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -46,7 +46,7 @@ AC_CHECK_LIB(GL, main, [libgl=true], [libgl=false], [-L/usr/X11R6/lib -lXt -lXex
 AC_CHECK_LIB(pthread, main, [pthread=true], [pthread=false])
 
 if test "$zlib" = "true" ; then
-  AC_CHECK_LIB(png, main, [png=true ; AC_DEFINE(HAVE_PNG,1,[PNG library])], [png=false])
+  AC_CHECK_LIB(png, main, [png=true ; AC_DEFINE(HAVE_PNG,1,[PNG library])], [png=false], [-lz -lm])
 fi
 
 dnl Checks for header files.