Hi,
for some unknown reason, the configure test in GNUstep base for
NeXT_RUNTIME was set up to never use -fconstant-string-class,
see config/config. constant-string-class.m .
As you can use gcc 3.1 on Darwin / OS X, which supports this
option, I patched configure and the test to do a real test.
Gives correct results for gcc 2.95.2 (no) and gcc 3.1 (yes)
Beware: this is a real ugly hack, it uses Apples
Foundation.framework. I send it as it might be helpful for other
OS X porters, not to be included finally. I just couldn't figure
out how to get the test code work without it, tried two days.
Perhaps somebody more knowledgable can give me some insight.
--- snip ---
Nobile:~/Desktop/GNUstep/base$ cvs diff -u
cvs server: Diffing .
Index: configure
===================================================================
RCS file: /cvsroot/gnustep/gnustep/core/base/configure,v
retrieving revision 1.139
diff -u -r1.139 configure
--- configure 24 Feb 2002 18:28:40 -0000 1.139
+++ configure 27 Feb 2002 22:14:09 -0000
@@ -1198,7 +1198,10 @@
echo "configure:1199: checking the Objective-C runtime" >&5
if test "$OBJC_RUNTIME_LIB" = "nx"; then
echo "$ac_t""NeXT" 1>&6
- LIBOBJC='-lobjc'
+ # Markus LIBOBJC='-lobjc'
+ LIBOBJC='-framework Foundation'
+ # Markus: This is a hack to get more meaningful results until I've
+ # figured out how to get NSConstantStrings to work
without it.
CPPFLAGS="$CPPFLAGS -fnext-runtime -DNeXT_RUNTIME"
else
echo "$ac_t""GNU" 1>&6
cvs server: Diffing Admin
[...]
cvs server: Diffing config
Index: config/config.constant-string-class.m
===================================================================
RCS file:
/cvsroot/gnustep/gnustep/core/base/config/config.constant-string-
class.m,v
retrieving revision 1.1
diff -u -r1.1 config.constant-string-class.m
--- config/config.constant-string-class.m 6 Jun 2001
15:08:42 -0000 1.1
+++ config/config.constant-string-class.m 27 Feb 2002
22:14:17 -0000
@@ -11,15 +11,6 @@
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
*/
-#ifdef NeXT_RUNTIME
-/* ignore this test with the NeXT runtime - never use
- -fconstant-string-class */
-int main (int argc, char **argv)
-{
- abort ();
- return 1;
-}
-#else /* GNU RUNTIME - the real test */
/* must be compiled compile using -fconstant-string-
class=NSConstantString
as an option to gcc. If it doesn't work, it means your gcc doesn't
@@ -36,14 +27,22 @@
}
- (char *) customString;
@end
-
+
+#ifdef NeXT_RUNTIME
+/* Markus: As a hack in configure we add -framework Foundation on OS X
+ This, we need these tweaks here. */
+extern void *_NSConstantStringClassReference;
+
+@implementation NSConstantString (NSConstantString)
+#else
@implementation NSConstantString
+#endif
- (char *) customString
{
return c_string;
}
@end
-
+
int main (int argc, char **argv)
{
@@ -58,4 +57,3 @@
return 0;
}
-#endif /* GNU RUNTIME */
--- snip ---
Cheers,
Markus
- - - - - - - - - - - - - - - - - - -
Dipl. Ing. Markus Hitter
http://www.jump-ing.de/
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