Sébastien Le Roux wrote:
I wonder if there is a way (a macro ?) to obtain the version of a library.
Maybe, but the Autoconf Way is to test for features, not versions.
Take the simple case, only two supported versions of a library, old and
new. You write a single autoconf test that tries to link a program
containing a routine only available in the new library. AC_TRY_LINK If
the new library differs only in the interface to the same set of
functions, you'd have to use AC_TRY_COMPILE instead, with an attempt to
call the newer interface.
You probably need at least two tests, in actual use. The second one is
in case the first fails, to check that the old version exists, to
differentiate that case from the one where neither version is present.
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