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Re: [PATCH]: fix the --with-mpfr-dir=PATH configure flag
- From: Matt Fago <fago at earthlink dot net>
- To: "Kaveh R. GHAZI" <ghazi at caip dot rutgers dot edu>
- Cc: mark at codesourcery dot com, Gabriel Dos Reis <gdr at integrable-solutions dot net>, DJ Delorie <dj at redhat dot com>, gcc-patches at gcc dot gnu dot org, fortran at gcc dot gnu dot org
- Date: Mon, 20 Nov 2006 12:28:02 -0700 (GMT-07:00)
- Subject: Re: [PATCH]: fix the --with-mpfr-dir=PATH configure flag
- Reply-to: Matt Fago <fago at earthlink dot net>
>From: "Kaveh R. GHAZI" <ghazi@caip.rutgers.edu>
>I believe the configure test already has a link time check with an mpfr
>function, mpfr_init. In order to fix it, I need you to help me understand
>why this link test (incorrectly?) passes. Please try the 4.1 vs mainline
>configure, because they are slightly different.
Why yes it does do a link test for MPFR -- don't know how I missed that.
Thanks. Is mpfr_init() only found in the desired versions of MPFR?
Otherwise I'm not sure that this test is as complete as one would like.
I retested 4.1.1 configure and recovered the same behavior. I also tested
mainline via the gcc-20061118 snapshot with
../srcdir/configure --with=languages=fortran
This build also results in a successful configure, but a failed build during
gfortran bootstrap. However, the error message is now much more helpful:
gcc -g -fkeep-inline-functions -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes-Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute -fno-common -DHAVE_CONFIG_H -o cpp gcc.o opts-common.o gcc-options.o cppspec.o \
intl.o prefix.o version.o driver-i386.o ../libcpp/libcpp.a ../libiberty/libiberty.a../libdecnumber/libdecnumber.a -lmpfr -lgmp
/tmp/new-software/gcc-4.3-20061118-build/./gcc/xgcc -B/tmp/new-software/gcc-4.3-20061118-build/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-gnu/sys-include -dumpspecs > tmp-specs
/tmp/new-software/gcc-4.3-20061118-build/./gcc/xgcc: error while loading shared libraries: libmpfr.so.1: cannot open shared object file: No such file or directory
make[3]: *** [specs] Error 127
So this has me puzzled. Anyone have any suggestions on how to proceed?
>Correct, I'm not removing the --with-gmp/--with-mpfr shortcut flags. (No
>relation to the *-dir flags.)
That's fine by me.
Thanks,
Matt