libpng doesn't ranlib

[pguyot (Paul Guyot)]

libpng doesn't ranlib libpng.a. So you can (randomly) get the following error: ld: table of contents for archive: /opt/local/lib/libpng.a is out of date; rerun ranlib(1) (can't load from it)

Actually, it copies libpng.a during the installation phase without preserving the modification date.

To get it everytime, do a port build, wait a minute or two and do a port install. Then try to link against libpng.a.

The patch below provides a simple fix.

Index: Portfile =================================================================== RCS file: /Volumes/src/cvs/od/proj/darwinports/dports/graphics/libpng/Portfile,v retrieving revision 1.26 diff -u -r1.26 Portfile --- Portfile 16 Jan 2004 23:25:12 -0000 1.26 +++ Portfile 9 Feb 2004 10:16:59 -0000 @@ -55,3 +55,6 @@

reinplace s|(prefix)/man|(prefix)/share/man| Makefile

}

+post-destroot { + system "ranlib ${destroot}${prefix}/lib/libpng.a" + }