次のように、RHEL6 で gcc 4.9.2 をビルドしようとしています。
ソース tarball を解凍します (~/gcc-4.9.2 に)
ソースディレクトリで：
./contrib/download_prerequisites
別のビルド ディレクトリを作成する ~/gcc-4.9.2-build
ビルドディレクトリで：
~/gcc-4.9.2/configure --prefix=/usr/local/gcc-4.9.2
make
これは次の場合に失敗します。
make[6]: Entering directory `/root/gcc-4.9.2-build-try0/x86_64-unknown-linux-gnu/libjava/classpath/native/jni/java-math'
/bin/sh ../../../libtool --tag=CC --mode=compile /root/gcc-4.9.2-build-try0/./gcc/xgcc -B/root/gcc-4.9.2-build-try0/./gcc/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/sys-include -DHAVE_CONFIG_H -I. -I/root/gcc-4.9.2/libjava/classpath/native/jni/java-math -I../../../include -I/root/gcc-4.9.2/libjava/classpath/include -I/root/gcc-4.9.2/libjava/classpath/native/jni/classpath -I/root/gcc-4.9.2/libjava/classpath/native/jni/native-lib -W -Wall -Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long -I/usr/include -g -O2 -MT gnu_java_math_GMP.lo -MD -MP -MF .deps/gnu_java_math_GMP.Tpo -c -o gnu_java_math_GMP.lo /root/gcc-4.9.2/libjava/classpath/native/jni/java-math/gnu_java_math_GMP.c
libtool: compile: /root/gcc-4.9.2-build-try0/./gcc/xgcc -B/root/gcc-4.9.2-build-try0/./gcc/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/sys-include -DHAVE_CONFIG_H -I. -I/root/gcc-4.9.2/libjava/classpath/native/jni/java-math -I../../../include -I/root/gcc-4.9.2/libjava/classpath/include -I/root/gcc-4.9.2/libjava/classpath/native/jni/classpath -I/root/gcc-4.9.2/libjava/classpath/native/jni/native-lib -W -Wall -Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long -I/usr/include -g -O2 -MT gnu_java_math_GMP.lo -MD -MP -MF .deps/gnu_java_math_GMP.Tpo -c /root/gcc-4.9.2/libjava/classpath/native/jni/java-math/gnu_java_math_GMP.c -fPIC -DPIC -o .libs/gnu_java_math_GMP.o
mv -f .deps/gnu_java_math_GMP.Tpo .deps/gnu_java_math_GMP.Plo
/bin/sh ../../../libtool --tag=CC --mode=link /root/gcc-4.9.2-build-try0/./gcc/xgcc -B/root/gcc-4.9.2-build-try0/./gcc/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/sys-include -W -Wall -Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long -I/usr/include -g -O2 -module -version-info 0:0:0 -no-undefined -lgmp -avoid-version -o libjavamath.la -rpath /usr/local/gcc-4.9.2/lib/../lib64/gcj-4.9.2-15 gnu_java_math_GMP.lo ../../../native/jni/classpath/jcl.lo -lrt
libtool: link: /root/gcc-4.9.2-build-try0/./gcc/xgcc -B/root/gcc-4.9.2-build-try0/./gcc/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/sys-include -shared .libs/gnu_java_math_GMP.o ../../../native/jni/classpath/.libs/jcl.o /root/gcc-4.9.2-build-try0/./gmp/.libs/libgmp.a -lrt -Wl,-soname -Wl,libjavamath.so -o .libs/libjavamath.so
/usr/bin/ld: /root/gcc-4.9.2-build-try0/./gmp/.libs/libgmp.a(mp_set_fns.o): relocation R_X86_64_32 against `__gmp_default_allocate' can not be used when making a shared object; recompile with -fPIC
/root/gcc-4.9.2-build-try0/./gmp/.libs/libgmp.a: could not read symbols: Bad value
collect2: error: ld returned 1 exit status
make[6]: *** [libjavamath.la] Error 1
make[6]: Leaving directory `/root/gcc-4.9.2-build-try0/x86_64-unknown-linux-gnu/libjava/classpath/native/jni/java-math'
少しグーグルで --disable-shared オプションを指摘されましたが、これは一種の助けになりましたが、今では:
ビルドディレクトリで：
~/gcc-4.9.2/configure --prefix=/usr/local/gcc-4.9.2 --disable-shared
make
少し異なるエラーが発生しました：
make[8]: Entering directory `/root/gcc-4.9.2-build/x86_64-unknown-linux-gnu/32/libjava/classpath/native/jni/classpath'
/bin/sh ../../../libtool --tag=CC --mode=compile /root/gcc-4.9.2-build/./gcc/xgcc -B/root/gcc-4.9.2-build/./gcc/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/include -isystem /usr/local/gcc-4.9.2/x86_64-unknown-linux-gnu/sys-include -m32 -DHAVE_CONFIG_H -I. -I/root/gcc-4.9.2/libjava/classpath/native/jni/classpath -I../../../include -I/root/gcc-4.9.2/libjava/classpath/include -I/root/gcc-4.9.2/libjava/classpath/native/jni/classpath -I/root/gcc-4.9.2/libjava/classpath/native/jni/native-lib -W -Wall -Wmissing-declarations -Wwrite-strings -Wmissing-prototypes -Wno-long-long -Wstrict-prototypes -pedantic -fexceptions -fasynchronous-unwind-tables -g -O2 -m32 -MT jcl.lo -MD -MP -MF .deps/jcl.Tpo -c -o jcl.lo /root/gcc-4.9.2/libjava/classpath/native/jni/classpath/jcl.c
libtool: compile: not configured to build any kind of library
libtool: compile: See the libtool documentation for more information.
libtool: compile: Fatal configuration error.
make[8]: *** [jcl.lo] Error 1
make[8]: Leaving directory `/root/gcc-4.9.2-build/x86_64-unknown-linux-gnu/32/libjava/classpath/native/jni/classpath'
--enable-static オプションを追加しても違いはありませんでした。
何が間違っている可能性があるかについて何か提案はありますか?
ところで、gcc 4.9.1 でも同じエラーが発生しました。
システム: Linux 2.6.32-431.29.2.el6.x86_64 #1 SMP Sun Jul 27 15:55:46 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux
システムは RHEL6 で、Redhat 経由で完全に更新されており、私が知っているカスタム RPM はありません。