media-gfx/mscgen/files/mscgen-0.18-pkg.patch


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--- configure.ac
+++ configure.ac
@@ -20,6 +20,8 @@
 AC_CHECK_HEADERS([unistd.h])
 AC_CHECK_HEADERS([limits.h])
 
+PKG_PROG_PKG_CONFIG
+
 #
 # Check if libgd is needed
 #