Re: Stupid question...

[John D Lamb <J.D.Lamb@btinternet.com>]

On Sun, 2009-10-11 at 09:52 -0400, Robert G. Brown wrote:
> I'm trying to get gsl to be correctly detected in a configure.ac
> (something that has never quite worked, for reasons I don't understand).

Here’s the version I use.

use_atlas=yes
AC_CHECK_LIB([atlas],[main],[],[use_atlas=no])
if test x$use_atlas = xyes; then
AC_CHECK_LIB([f77blas],[main],[],[use_atlas=no])
fi
if test x$use_atlas = xyes; then
AC_CHECK_LIB([cblas],[main],[],[use_atlas=no])
fi
if test x$use_atlas = xyes; then
AC_CHECK_LIB([lapack],[main],[],[use_atlas=no])
fi
if test x$use_atlas = xno; then
AC_CHECK_LIB([gslcblas],[main],[],[
echo \
"------------------------------------------------------------------------
ERROR: Could not find a CBLAS implementation.
Tried both ATLAS cblas and gslcblas.
------------------------------------------------------------------------"
exit
])
fi
AC_CHECK_LIB([gsl],[main],[],[
echo \
"------------------------------------------------------------------------
ERROR: libgsl appears to be missing. You cannot sanely try to build
this code without libgsl, the GNU Scientific Library. It is available
from
http://www.gnu.org/ and compiles readily on most systems.
------------------------------------------------------------------------"
exit
],[-lgslcblas])

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([gsl/gsl_version.h],[],[
echo \
"------------------------------------------------------------------------
ERROR: libgsl is present, but the header files appear not to have been
installed. If the GNU Scientific Library was installed as an RPM or
similar, make sure you also include the -devel package. Otherwise, you
can
obtain the GNU Scientific Library from http://www.gnu.org.
------------------------------------------------------------------------"
exit
])

-- 
JDL