On 05/21/2013 03:01 PM, John Cremona wrote:
This is something which hit me when I built sage-5.10.beta4 but it is
not specific to that release.

I upgraded my systems's version of mpir, mpfr, flint and ntl, and
installed them all in /usr/local/.  When building mpir I use the
--enable-gmpcompat option so that the library which gets inslatted
into /usr/local/lib is called libgmp.  Then I have to do something
slightly complicated when building mpfr (following intructions in
mpfr's INSTALL file) as otherwise it will find the older gmp in
/usr/lib and that will not work.

After doing all the above, successfully (for example I can configure
and build eclib using all those newly installed components) I found I
could not build Sage without setting LD_LIBRARY_PATH to
/usr/local/lib, otherwise it almost immediately gives up saying that
it cannot find libgmp.

Did I do something wrong?
Did you by chance build GCC with that new libgmp/libmpfr?

Please provide exact error messages, relevant log files, ...

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