mex a statisc library error

please help me:when I run

mex enkfgoesrtv.f90 -I/sat7/jzhang/GOES/crtm-2.05_clear/include/ -L/sat7/jzhang/GOES/crtm-2.05_clear/lib -lCRTM

error information:

/usr/bin/ld: /sat7/jzhang/GOES/crtm-2.05_clear/lib/libCRTM.a(crtm_clear.o): relocation R_X86_64_32S against `crtm_clear_$BLK.var$3218' can not be used when making a shared object; recompile with -fPIC /sat7/jzhang/GOES/crtm-2.05_clear/lib/libCRTM.a: could not read symbols: Bad value collect2: ld returned 1 exit status

    mex: link of ' "enkfgoesrtv.mexa64"' failed.

??? Error using ==> mex at 208 Unable to complete successfully.

Answer 1

[Kaustubha Govind]

MEX-files are essentially shared libraries with a MEX-specific extensions. All shared libraries on Linux can only be linked against other libraries that have been compiled with the -fPIC option. See HOWTO fix -fPIC errors for more information.