I'm installing a modern version of gcc on solaris. I compiled gmp, mpfr and mpc, they're all 64bit. When I try to configure gcc as follows I get an error complaining that mpc,mpfr and gmp are the wrong elf class. What gives?
./../gcc-4.5.1/configure --prefix=/opt/OurAppDir/gcc --with-gmp=/opt/OurAppDir/gmp --with-mpfr=/opt/OurAppDir/mpfr --with-gnu-as --with-gnu-ld --build=sparc-sun-solaris2.10
checking build system type... sparc-sun-solaris2.10
checking host system type... sparc-sun-solaris2.10
checking target system type... sparc-sun-solaris2.10
checking for a BSD-compatible install... ./../gcc-4.5.1/install-sh -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /usr/bin/sed
checking for gawk... no
checking for mawk... no
checking for nawk... nawk
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for gnatbind... no
checking for gnatmake... no
checking whether compiler driver understands Ada... no
checking how to compare bootstrapped objects... cmp $$f1 $$f2 16 16
checking for objdir... .libs
checking for the correct version of gmp.h... yes
checking for the correct version of mpfr.h... yes
checking for the correct version of mpc.h... yes
checking for the correct version of the gmp/mpfr/mpc libraries... no
configure: error: Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
their locations. Source code for these libraries can be found at
their respective hosting sites as well as at
ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
http://gcc.gnu.org/install/prerequisites.html for additional info. If
you obtained GMP, MPFR and/or MPC from a vendor distribution package,
make sure that you have installed both the libraries and the header
files. They may be located in separate packages.
config.log errors
configure:5474: checking for the correct version of gmp.h
configure:5494: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5494: $? = 0
configure:5512: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5512: $? = 0
configure:5513: result: yes
configure:5529: checking for the correct version of mpfr.h
configure:5547: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5547: $? = 0
configure:5564: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5564: $? = 0
configure:5565: result: yes
configure:5582: checking for the correct version of mpc.h
configure:5599: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5599: $? = 0
configure:5615: gcc -c -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include conftest.c >&5
configure:5615: $? = 0
configure:5616: result: yes
configure:5634: checking for the correct version of the gmp/mpfr/mpc libraries
configure:5665: gcc -o conftest -g -O2 -I/opt/OurAppDir/gmp/include -I/opt/OurAppDir/mpfr/include -R/usr/sfw/lib/sparcv9 conftest.c -L/opt/OurAppDir/gmp/lib -L/opt/OurAppDir/m
pfr/lib -lmpc -lmpfr -lgmp >&5
ld: fatal: file /opt/OurAppDir/mpfr/lib/libmpc.so: wrong ELF class: ELFCLASS64
ld: fatal: file /opt/OurAppDir/mpfr/lib/libmpfr.so: wrong ELF class: ELFCLASS64
ld: fatal: file /opt/OurAppDir/gmp/lib/libgmp.so: wrong ELF class: ELFCLASS64
ld: fatal: File processing errors. No output written to conftest
With the default configure line, GCC will not be built as a 64-bit binary, but as 32-bit. So, you need to rebuild GMP, MPFR and MPC in 32-bit mode, by forcing configure ABI=32.
Alternatively, you can configure GCC with a sparc64-sun-solarisX build triplet. In that case, there are additional instructions on the GCC website.