X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=configure.ac;h=f56ec9876176ec846c7115c40a9936b9c05d740f;hb=16cd01cacbaf3464209695204800f3df65d00ac3;hp=3023356017e9a85cb93e7bbf62c88ca85756c4b4;hpb=6feff564f44ba7f2efc6bd171647c20977cc144e;p=supertux.git

diff --git a/configure.ac b/configure.ac
index 302335601..f56ec9876 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,10 @@ AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE
 dnl This is obsolete see automake1.7 // AM_CONFIG_HEADER
 
-SDL_VERSION=1.2.4
+# we don't want the stupid autoconf default -g -O2
+test ".$CXXFLAGS" = "." && CXXFLAGS=" "
+
+CXXFLAGS="$CXXFLAGS -ffast-math"
 
 AC_PROG_CC
 AC_PROG_CXX
@@ -38,8 +41,9 @@ dnl Give advanced users some options to play with
 
 AC_MSG_CHECKING(for gprof mode)
 AC_ARG_ENABLE(gprof,
-              AC_HELP_STRING([--enable-gprof], [enable GNU profiling support]),, enable_gprof="no")
-if test "x${enable_gprof}" != "xno"; then
+              AC_HELP_STRING([--enable-gprof], [enable GNU profiling support]),
+              [enable_gprof=$enableval], [enable_gprof=no])
+if test "$enable_gprof" = "yes"; then
     CXXFLAGS="$CXXFLAGS -pg"
     AC_MSG_RESULT([enabled])
 else
@@ -51,16 +55,19 @@ AC_ARG_ENABLE(debug,
               AC_HELP_STRING([--enable-debug], [enable debugging mode]),
               [enable_debug=$enableval], [enable_debug=no])
 if test "$enable_debug" = "yes"; then
-    CXXFLAGS="$CXXFLAGS -Wall -Werror -DDEBUG -O0 -g3"
+    AC_DEFINE([DEBUG], 1, [define to compile in debug checks])
+    CXXFLAGS="$CXXFLAGS -Wall -Werror -O0 -g3"
     AC_MSG_RESULT([enabled])
 else
+    CXXFLAGS="$CXXFLAGS -O2 -g"
     AC_MSG_RESULT([disabled])
 fi
 
 AC_MSG_CHECKING(wether OpenGL should be used)
 AC_ARG_ENABLE(opengl,
-              AC_HELP_STRING([--disable-opengl], [disable OpenGL support]),, enable_opengl="yes")
-if test "x${enable_opengl}" != "xno"; then
+              AC_HELP_STRING([--disable-opengl], [disable OpenGL support]),
+              [enable_opengl=$enableval], enable_opengl=yes)
+if test "$enable_opengl" = "yes"; then
     AC_MSG_RESULT([yes])
 else
     AC_MSG_RESULT([no])
@@ -70,6 +77,7 @@ AM_GNU_GETTEXT
 
 dnl ===========================================================================
 dnl Check for SDL
+SDL_VERSION=1.2.4
 AM_PATH_SDL($SDL_VERSION,
             :,
 	    AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!]))
@@ -85,12 +93,12 @@ AC_CHECK_LIB(SDL_mixer, Mix_OpenAudio,,
 AC_CHECK_LIB(SDL_image, IMG_Load,,
 	AC_MSG_ERROR([SDL_image library required]))
 
-if test "x${enable_opengl}" != "xno"; then
+if test "$enable_opengl" = "yes"; then
   AX_CHECK_GL
 fi
-if test "x$no_gl" = "xyes" -o "x$enable_opengl" = "xno"; then
+if test "$no_gl" = "yes" -o "$enable_opengl" = "no"; then
   CXXFLAGS="$CXXFLAGS -DNOOPENGL"
-  enable_opengl="no"
+  enable_opengl=no
 else
   CFLAGS="$CFLAGS $GL_CFLAGS"
   CXXFLAGS="$CXXFLAGS $GL_CFLAGS"