[Bug 644] New: Problems with ESP Ghostscript 7.07.1 and a system libpng

blfs-bugs at linuxfromscratch.org blfs-bugs at linuxfromscratch.org
Mon Mar 8 15:54:48 PST 2004


http://blfs-bugs.linuxfromscratch.org/show_bug.cgi?id=644

           Summary: Problems with ESP Ghostscript 7.07.1 and a system libpng
           Product: Beyond LinuxFromScratch
           Version: CVS
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: BOOK
        AssignedTo: blfs-book at linuxfromscratch.org
        ReportedBy: lizardo at linuxfromscratch.org
         QAContact: blfs-book at linuxfromscratch.org


From
http://archives.linuxfromscratch.org/mail-archives/blfs-dev/2004-February/005199.html:

The current stable espgs version (7.07.1) has a bug which prevents a
system libpng from being detected, so to build a gs binary with PNG
support, we have necessarily to unpack the lipng package inside the
espgs source dir.

The patch
http://www.linuxfromscratch.org/patches/downloads/espgs/espgs-7.07.1-libpng_check.patch,
backported from CVS, fixes this issue. Unfortunately, this fix exposed
another bug when compiling the shared library (see
http://www.cups.org/str.php?L602 for details). For this specific bug, we
don't need a patch, only a instruction modification.

Finally, the following changes are suggested to resolve this issue:
- Add the espgs-7.07.1-libpng_check.patch to the ESP Ghostscript section
  marked as "required".
- Change the the shared library compilation instruction to:

make CFLAGS_SO='-fPIC $(ACDEFS)' so

The upcoming 7.07.2 version is supposed to fix these bugs.



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