gsl-config --version (return code: 0)
2.4
gsl-config --help (return code: 0)
Usage: gsl-config [OPTION]
Known values for OPTION are:
--prefix show GSL installation prefix
--libs print library linking information, with cblas
--libs-without-cblas print library linking information, without cblas
--cflags print pre-processor and compiler flags
--help display this help and exit
--version output version information
An external CBLAS library can be specified using the GSL_CBLAS_LIB
environment variable. The GSL CBLAS library is used by default.