From: Nick Bowler <nbowler@draconx.ca>
Date: Sat, 25 Feb 2012 02:25:21 +0000 (-0500)
Subject: Fix GSL detection when using the default --with-gsl=auto.
X-Git-Tag: v1~67
X-Git-Url: https://git.draconx.ca/gitweb/cdecl99.git/commitdiff_plain/8751282db0a2cd057bd16ed74f4f38b6328146a4

Fix GSL detection when using the default --with-gsl=auto.

The use of a shell case statement was preventing the AC_REQUIRE macros
in DX_CHECK_GSL from working correctly in the second case.  Switch to
AS_CASE to avoid the issue.
---

diff --git a/configure.ac b/configure.ac
index 67252df..0ae3c8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,18 +47,10 @@ AC_ARG_WITH([gsl],
 		[specify whether to build test programs requiring the GNU Scientific Library. [default=auto]]
 	)], [with_gsl=$withval], [with_gsl=auto])
 
-case $with_gsl in
-no)
-	have_gsl=no
-;;
-yes)
-	DX_CHECK_GSL([1.0], [have_gsl=yes])
-;;
-*)
-	DX_CHECK_GSL([1.0], [have_gsl=yes], [have_gsl=no])
-;;
-esac
-
+AS_CASE([$with_gsl],
+	[no], [have_gsl=no],
+	[yes], [DX_CHECK_GSL([1.0], [have_gsl=yes])],
+	[DX_CHECK_GSL([1.0], [have_gsl=yes], [have_gsl=no])])
 AM_CONDITIONAL([HAVE_GSL], [test x"$have_gsl" = x"yes"])
 
 AC_CONFIG_FILES([