checking for C libraries of gcc-std=gnu99... -L/usr/local/lib64-L/usr/lib64/gcc/x86_64-suse-linux/4.3 -L/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../lib64-L/lib/../lib64 -L/usr/lib/../lib64-L/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/lib-L/usr/lib64/gcc/x86_64-suse-linux/4.3/../../.. -lgcc_s
checking for dummy main to link withFortran 77 libraries... none
checking for Fortran 77 name-manglingscheme... configure: error: in `/soft/R-3.2.2':
configure: error: cannot compile a simpleFortran program
config.log中搜索"cannotcompile a simple Fortran program"：
configure:23745: checking for Fortran 77name-mangling scheme
configure:23758: gfortran -c conftest.f >&5
/opt/gcc-trunk/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.0/f951:error while loading shared libraries: libisl.so.13: cannot open sh
ared object file: No such file or directory
configure:23758: $? = 1
configure: failed program was:
| subroutine foobar()
| return
| end
| subroutine foo_bar()
| return
| end
configure:23891: error: in `/soft/R-3.2.2':
configure:23893: error: cannot compile asimple Fortran program
解决办法：安装isl
7. undefined reference to….
make R时报错
gcc -std=gnu99 -Wl,--export-dynamic-fopenmp -L../../lib -L/usr/local/lib64-o R.bin Rmain.o -lR -lRblas
/opt/gcc-trunk/lib64/libgfortran.so.4:undefined reference to `__cpu_model@GCC_4.8.0'
collect2: ld returned 1 exit status
make[3]: *** [R.bin] Error 1
解决办法：
/etc/profile里添加：
exportLIBRARY_PATH=$LIBRARY_PATH:/opt/gcc-trunk/lib:/opt/gcc-trunk/lib64