Much more reliable getopt_long test. Idea from Netocrat.

darcs-hash:20060828102949-ac50b-bb55face2f3127018b6c79a72ee71e38f075232a.gz

1 files changed, 37 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index b4dbbcb9..1e4417a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -454,7 +454,7 @@ fi
 
 # Check for presense of various functions
 AC_CHECK_FUNCS( gettext wcsdup wcsndup wcslen wcscasecmp wcsncasecmp fwprintf )
-AC_CHECK_FUNCS( futimes wcwidth wcswidth getopt_long wcstok fputwc fgetwc )
+AC_CHECK_FUNCS( futimes wcwidth wcswidth wcstok fputwc fgetwc )
 AC_CHECK_FUNCS( wcstol dcgettext wcslcat wcslcpy lrand48_r killpg)
 
 # The Makefile also needs to know if we have gettext, so it knows if the translations should be installed.
@@ -586,6 +586,42 @@ else
     AC_MSG_RESULT(no)
 fi
 
+# Check if getopt_long actually works
+AC_MSG_CHECKING([if getopt_long works])
+AC_TRY_LINK(
+	[
+		#if HAVE_GETOPT_H
+		#include <getopt.h>
+		#endif
+	],
+	[
+		static struct option
+			long_options[] =
+			{
+				0, 0, 0, 0 
+			}
+		;
+		int opt = getopt_long( 0,
+							   0, 
+							   0,
+							   long_options, 
+							   0 );
+		
+	],
+	have_working_getopt_long=yes, 
+	have_working_getopt_long=no
+)
+if test "$have_working_getopt_long" = yes; then
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(
+		[HAVE_WORKING_GETOPT_LONG], 
+		[1],
+		[Define to 1 if getopt_long actually works.]
+	)	
+else
+    AC_MSG_RESULT(no)
+fi
+
 # Check if del_curterm is broken - in that case we redefine
 # del_curterm as a no-op, to avoid a double-free