From b6ebce9d7741b58fa5a50fe3e74ef7e3a2003772 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Wed, 20 Jan 2010 15:42:08 +0100
Subject: Add --with-gsl configure option

---
 configure.ac | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index cce0fc00..49a90a8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,13 +24,19 @@ AC_ARG_WITH(hdf5,
  HDF5_LIBS="-L$withval/lib -lhdf5"],
 [HDF5_LIBS="-lhdf5"])
 
+AC_ARG_WITH(gsl,
+[AS_HELP_STRING([--with-gsl], [specify location of GSL])],
+[GSL_CFLAGS="-I$withval/include"
+ GSL_LIBS="-L$withval/lib -lgsl -lgslcblas"],
+[GSL_LIBS="-lgsl -lgslcblas"])
+
 havegtk=false
 AM_PATH_GTK_2_0(2.0.0, havegtk=true,
 AC_MSG_WARN([GTK not found.  hdfsee will not be built.]))
 
 AM_CONDITIONAL([HAVE_GTK], test x$havegtk = xtrue)
 
-CFLAGS="$CFLAGS $HDF5_CFLAGS $GTK_CFLAGS"
-LIBS="$LIBS $HDF5_LIBS -lm -lz -lgsl -lgslcblas $GTK_LIBS -lgthread-2.0 -lutil"
+CFLAGS="$CFLAGS $HDF5_CFLAGS $GTK_CFLAGS $GSL_CFLAGS"
+LIBS="$LIBS $HDF5_LIBS -lm -lz $GSL_LIBS $GTK_LIBS -lgthread-2.0 -lutil"
 
 AC_OUTPUT(Makefile src/Makefile data/Makefile)
-- 
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