[GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-366-g012ea7f

[Alexei Sheplyakov]

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- Log -----------------------------------------------------------------
commit 012ea7fa628fe97e72469af6b6703515eee24d3a
Author: Alexei Sheplyakov <Alexei.Sheplyakov at gmail.com>
Date:   Thu Feb 23 15:16:55 2012 +0200

    configure: correctly set rpath for linking with CLN ...
    
    ... as to not break tests for libreadline and dlopen().
    
    Problem:
    
    When using GCC 4.6 the configure script fails to find libreadline and
    libdl, although both libraries are definitely installed. See
    http://www.ginac.de/pipermail/ginac-list/2012-January/001868.html for
    more details.
    
    Reason:
    
    Apparently GCC 4.6 dislikes the -R/the/path switch (libtool way to say
    -Wl,-rpath,/the/path in a cross platform manner). Previous versions of
    GCC used to ignore the -R switch, however, GCC 4.6 errors out instead.
    Thus the configure script fails to detect readline and dlopen.
    
    Solution:
    
    Set the rpath (for linking with CLN) using the compiler friendly syntax
    (i.e. -Wl,-rpath -Wl,/the/path instead of -R/the/path).

-----------------------------------------------------------------------

Summary of changes:
 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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GiNaC -- a C++ library for symbolic computations