Hi, In order to install scipy, I am trying to install numpy 1.6.1. on GNU/linux redhat 2.6.18. But, I got error about fortran compiler. I have gfortran. I do not have f77/f90/g77/g90. I run :python setup.py build --fcompiler=gfortran It woks well and tells me that customize Gnu95FCompilerFound executable /usr/bin/gfortran But, i run: building library "npymath" sourcescustomize GnuFCompilerCould not locate executable g77Could not locate executable f77customize IntelFCompilerCould not locate executable ifortCould not locate executable ifccustomize LaheyFCompilerCould not locate executable lf95customize PGroupFCompilerCould not locate executable pgf90Could not locate executable pgf77customize AbsoftFCompilerCould not locate executable f90customize NAGFCompilerFound executable /usr/bin/f95customize Gnu95FCompilercustomize Gnu95FCompiler using configC compiler: gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC Do I have to install f77/f90/g77/g90 ? thanks