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[Bug-glpk] Re: problem on compiling glpk 4.2 in Debian and Red Hat (more

From: Andrew Makhorin
Subject: [Bug-glpk] Re: problem on compiling glpk 4.2 in Debian and Red Hat (more detailed instructions)
Date: Sat, 15 Nov 2003 13:26:09 +0300

(More detailed instructions added.)

In glpk 4.2 the standard math library libm is not linked by default,
so some unresolved external references appear on building the package
(namely, on linking glpsol).

To avoid the bug simply use the command:

   make LIBS=-lm [...]

rather than

   make [...]

Nothing else is needed to avoid the bug.

If you want to fix the bug:

a) *either* include the following lines:

   dnl Check for libraries.
   AC_CHECK_LIB(m, exp)

   in configure.in and then run autoconf and automake to re-generate
   configure shell script and Makefile.in's,

b) *or*, if you do not have autoconf and automake installed, replace
   configure.in and configure by the patched ones I have attached
   (see patch.tar.gz). Be sure that the timestamp assigned to the
   patched files remains untouched (otherwise make will detect that
   and begin to run automake). This can be attained with the following

   unzip -d glpk-4.2.tar.gz
   tar x < glpk-4.2
   unzip -d patch.tar.gz
   tar x < patch.tar
   cp -f -p patch/* glpk-4.2

   (It is impossible to patch the configure files using a diff file,
   because patch always alters the timestamp. That's why I do not post
   the diff file. Note also that the patched version of glpk differs
   from the original one only in two files: configure.in and configure,
   i.e. automake produces the same files as for the original version.
   The problem reported by Roberto Bagnara appears only due to changes
   in the timestamp.)

After patching you can build and install the package in a usual way.

Attachment: patch.tar.gz
Description: GNU Zip compressed data

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