install_gcc.md

install gmp, mpfr, mpc sequentially

gmp

• ./configure --prefix=/opt/gmp6
• make -j 10; make all; make install

mpfr

• ./configure --prefix=/opt/mpfr/4.0.1 --with-gmp=/opt/gmp6
• make -j 10; make all; make install

mpc

• ./configure --prefix=/opt/mpc102 --with-gmp=/opt/gmp6 --with-mpfr=/opt/mpfr/4.0.1
• make -j 20; make install

gcc8.2 using gcc4.8

• mkdir build ; cd build
• ../configure --prefix=/opt/compiler/gcc/8.2 --enable-languages=c,c++,fortran --with-gmp=/opt/libs/gmp/6.1.2/ --with-mpc=/opt/libs/mpc/1.1.0 --with-mpfr=/opt/libs/mpfr/4.0.1 --disable-multilib
  • 32bit support is disabled
• lib of mpfr is needed in LD_LIBRARY_PATH
  • export LD_LIBRARY_PATH+=:/opt/libs/mpfr/4.0.1/lib
  • In csh/tcsh, setenv LD_LIBRARY_PATH ${LD_LIBRARY_PATH}:/opt/libs/mpfr/4.0.1/lib
• make -j 20; make all ; make install

trouble-shooting

• When configure: error: error verifying int64_t uses long long message appears
  • The system doesn't have g++ compiler
• When `configure: error: cannot compute suffix of object files: cannot compile' appers
  • Update LD_LIBRARY_PATH with libs of mpfr, gmp, mpc

5.3 source compiling using 8.2

• Needs a few patchhttps://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ec1cc0263f156f70693a62cf17b254a0029f4852
• https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ec1cc0263f156f70693a62cf17b254a0029f4852
  • cfns.gperf, cfns.h, except.c
• https://gcc.gnu.org/git/?p=gcc.git&a=commit;h=16b277761b432510ad6dcf72d877ae72b5f0a4b7
  • Apply i386 for intel64 build
• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81066
• comment out ustat.h. See below.

5.5 source compiling using 8.2

• https://stackoverflow.com/questions/56096060/how-to-fix-the-gcc-compilation-error-sys-ustat-h-no-such-file-or-directory-i
  • Comment out ustat.h and ustat variable