Can you first test that your gcc installation works fine (https://gcc.gnu.org/install/test.html). Then if the problem persists, please send your *config.log* to the list instead of the output of configure so that we look at it. --Halim www.mcs.anl.gov/~aamer On 10/19/15 8:32 PM, 广州刘丹 wrote:
Hello, everyone: After I upgrade gcc from 4.4.7 to 5.2.0 under oracle linux 6.7, the system can't pass config mpich 3.1.4 when I run: ./configure -prefix=/usr/local/share/mpich-3.1.4/ |& tee c.txt
below is error message: configure: error: Unable to configure with Fortran support because configure could not determine the size of a Fortran INTEGER. Consider setting CROSS_F77_SIZEOF_INTEGER to the length in bytes of a Fortran INTEGER
When I use gcc 4.4.7, there's no error to make mpich 3.1.4.
and below is the process how to upgrade gcc: wget ftp://ftp.gnu.org/gnu/gcc/gcc-5.2.0/gcc-5.2.0.tar.bz2 tar -jxvf gcc-5.2.0.tar.bz2 cd gcc-5.2.0 ./contrib/download_prerequisites cd .. mkdir /usr/local/share/gcc-5.2.0 ./gcc-5.2.0/configure --prefix=/usr/local/share/gcc-5.2.0/ --disable-multilib --enable-languages=c,c++,objc,obj-c++,java,fortran make -j4 sudo make install
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