commit c912050a7b6713753c603cc245bc199a0aa7f5d6
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 22 14:58:04 2013 -0600
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 22 14:58:04 2013 -0600
tree d44abecf5336d63836e94cffd262431ee69db2f7
parent 113213416cff40304cffeb26ffea0d21d7f31405

[libpng16] Fixed 'minimal' builds. Various obviously useful minimal

configurations don't build because of missing contrib/libtests test programs
and overly complex dependencies in scripts/pnglibconf.dfa. This change adds
contrib/conftest/*.dfa files that can be used in automatic build
scripts to ensure that these configurations continue to build.

pngwio.c

diff --git a/pngwio.c b/pngwio.c
index e3289df..ee1d06f 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -149,6 +149,8 @@
 #  else
    png_ptr->output_flush_fn = output_flush_fn;
 #  endif
+#else
+   PNG_UNUSED(output_flush_fn)
 #endif /* PNG_WRITE_FLUSH_SUPPORTED */
 
    /* It is an error to read while writing a png file */