commit 28d4aae5b96f0b4864c2c3c6d2847cb954a17248
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 13 16:29:45 2009 -0600
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 13 16:29:45 2009 -0600
tree e7a78e5722db1d0d8ebe462efe60aa3a9ce1fbe2
parent 11313ba8e76d364f368478cb342c9c3eb33dd75a

[devel]  Moved libpng-config.in and libpng.pc-configure.in out of the scripts

    directory, to libpng-config.in and libpng-pc.in, respectively, and
    modified Makefile.am and configure.ac accordingly.  Now "configure"
    needs nothing from the "scripts" directory.
  Also, avoid redefining PNG_CONST in pngconf.h

pngconf.h

diff --git a/pngconf.h b/pngconf.h
index f96d588..e8cdee8 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -419,10 +419,12 @@
  * If you do not want to use const, define PNG_NO_CONST here.
  */
 
-#ifndef PNG_NO_CONST
-#  define PNG_CONST const
-#else
-#  define PNG_CONST
+#ifndef PNG_CONST
+#  ifndef PNG_NO_CONST
+#    define PNG_CONST const
+#  else
+#    define PNG_CONST
+#  endif
 #endif
 
 /* The following defines give you the ability to remove code from the