From e2e59d3e4901b9405a86cbe754dde1f681fe25b7 Mon Sep 17 00:00:00 2001
From: kuepper <kuepper>
Date: Thu, 16 Nov 2006 12:52:46 +0000
Subject: [PATCH] * configure.in (AC_DEBUG): add test

* acinclude.m4 (AC_DEBUG): Define debug-feature and set DEBUG, NODEBUG,
or NDEBUG according to its value.
---
 eo/ChangeLog    |  4 ++++
 eo/acinclude.m4 | 23 +++++++++++++++++++++++
 eo/configure.in |  1 +
 3 files changed, 28 insertions(+)

diff --git a/eo/ChangeLog b/eo/ChangeLog
index d40835e6b..8a0e8ee90 100644
--- a/eo/ChangeLog
+++ b/eo/ChangeLog
@@ -1,5 +1,9 @@
+2006-11-16  Jochen Küpper  <jochen@fhi-berlin.mpg.de>
 
+	* configure.in (AC_DEBUG): add test
 
+	* acinclude.m4 (AC_DEBUG): Define debug-feature and set DEBUG, NODEBUG,
+	or NDEBUG according to its value.
 
 	* Local Variables:
 	* coding: iso-8859-1
diff --git a/eo/acinclude.m4 b/eo/acinclude.m4
index 8a3244382..f9e35376e 100644
--- a/eo/acinclude.m4
+++ b/eo/acinclude.m4
@@ -19,6 +19,29 @@ AC_DEFUN([AC_APPLICATIONS],[dnl
 
 
 
+# AC_DEBUG()
+#
+# Check for commandline options requesting DEBUG feature.
+# Might define DEBUG, NODEBUG, or NDEBUG, depending on flags given.
+AC_DEFUN([AC_DEBUG],[dnl
+  AC_ARG_ENABLE([debug], 
+    AC_HELP_STRING([--enable-debug], [include debugging code (default=no)]),
+    [ case "${enableval}" in
+      yes) debug=true ;;
+      no) debug=false ;;
+      *) AC_MSG_ERROR(bad value ${enableval} for debug option) ;;
+    esac],
+    [debug=false])
+  if test "$debug" = true; then
+    AC_DEFINE([DEBUG], true, [Debugging flag])
+  else
+    AC_DEFINE([NDEBUG], true, [no debugging])
+    AC_DEFINE([NODEBUG], true, [no debugging])
+  fi
+])
+
+
+
 # AC_GNUPLOT()
 #
 # Compile applications unless user requests not to do it.
diff --git a/eo/configure.in b/eo/configure.in
index 9f30947f0..9db4b1fe4 100644
--- a/eo/configure.in
+++ b/eo/configure.in
@@ -46,6 +46,7 @@ AC_CHECK_LIB(m, cos)
 
 dnl user-switches
 AC_APPLICATIONS
+AC_DEBUG
 AC_GNUPLOT
 AC_TUTORIAL