GMOD/jbrowse — Issue #27: configure script does not check libpng version
Author: jbrowsetix
Created: 2012-01-25 19:45:11+00:00
State: open
Labels: @Ian Holmes, from-lighthouse, |S| new

If libpng version is <1.4.0, linking of wig2png fails with the error message "undefined reference to `png_set_longjmp_fn’"

This could be fixed by updating the autoconf script (configure.in) to check the version of libpng, or (alternatively) to test for "png_set_longjmp_fn" in the AC_SEARCH_LIBS macro, rather than the current test for "png_create_write_struct"

[original LH ticket](http://jbrowse.lighthouseapp.com/projects/23792/tickets/63)

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