/usr/bin/ld: cannot find -lmpfr

[Michael Hennebry]

/usr/bin/ld: cannot find -lmpfr

As mentioned in another thread, I am trying to compile gappa 1.4 .
./configure LDFLAGS=-L/usr/lib64  complains


From config.log
configure:4678: checking for mpfr_snprintf in -lmpfr
configure:4703: g++ -o conftest -g -O2  -L/usr/lib64/ conftest.cpp -lmpfr  -lgmp 
> &5 
/usr/bin/ld: cannot find -lmpfr
collect2: error: ld returned 1 exit status

[hennebry@fedora ~]$ ls /usr/lib64/libmpfr*
/usr/lib64/libmpfr.so.6  /usr/lib64/libmpfr.so.6.1.0
[hennebry@fedora ~]$

What is going on?
How do I deal?

configure is written in the obfuscated shell generated by autotools.
Editing that seems unlikely to be successful.

-- 
Michael   hennebry(a)web.cs.ndsu.NoDak.edu
"Sorry but your password must contain an uppercase letter, a number,
a haiku, a gang sign, a heiroglyph, and the blood of a virgin."
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