From c36581bc01fc8891ea43d4c455961bb39ea54904 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Mon, 31 Oct 2011 20:30:06 -0400
Subject: Add --enable-debug configure option.

---
 configure.ac                    | 13 ++++++++++++-
 libdimension-python/Makefile.am |  4 ++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index bafc63e..5652aff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,7 +49,7 @@ AC_ARG_ENABLE([png],
 if test "$enable_png" != "no"; then
   PKG_CHECK_MODULES([libpng], [libpng], [enable_png=yes],
                     [test "$enable_png" = "yes" && AC_MSG_ERROR([libpng not found])
-                     enable_png-no])
+                     enable_png=no])
   AC_SUBST(libpng_CFLAGS)
   AC_SUBST(libpng_LIBS)
 fi
@@ -76,6 +76,17 @@ AC_ARG_ENABLE([profile],
               [enable_profile=no])
 AM_CONDITIONAL([PROFILE], [test "$enable_profile" = "yes"])
 
+dnl Debug/release builds
+AC_ARG_ENABLE([debug],
+              [AS_HELP_STRING([--enable-debug],
+                              [Perform potentially expensive sanity checks while running [default=no]])],
+              [],
+              [enable_debug=no])
+if test "$enable_debug" = "no"; then
+  AC_DEFINE([NDEBUG], [1])
+fi
+AM_CONDITIONAL([DEBUG], [test "$enable_debug" = "yes"])
+
 dnl Python headers
 PKG_CHECK_MODULES([Python], [python3 >= 3.2],
                   [],
diff --git a/libdimension-python/Makefile.am b/libdimension-python/Makefile.am
index 33e93a5..6e76591 100644
--- a/libdimension-python/Makefile.am
+++ b/libdimension-python/Makefile.am
@@ -26,7 +26,11 @@ AM_CFLAGS = $(Python_CFLAGS)
 AM_LDFLAGS = $(Python_LDFLAGS)
 
 wrapper.c: wrapper.pyx wrapper.pxd
+if DEBUG
 	cython --line-directives wrapper.pyx
+else
+	cython wrapper.pyx
+endif
 
 pkgpyexec_LTLIBRARIES = wrapper.la
 wrapper_la_SOURCES = wrapper.c                                                 \
-- 
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