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Re: Check for ucontext.h and sys/ucontext.h

On Sun, Nov 04, 2001 at 12:14:16PM -0800, Geoff Keating wrote:
> This would also work, except:

OK, how about this:


Index: linux.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/i386/linux.h,v
retrieving revision 1.31
diff -u -r1.31 linux.h
--- linux.h	2001/10/31 14:32:29	1.31
+++ linux.h	2001/11/04 20:31:08
@@ -219,11 +219,21 @@
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */
 
+
 #ifdef IN_LIBGCC2
-#include <signal.h>
-#include <sys/ucontext.h>
-#endif
+# include <features.h>
+# include <sys/types.h>
+# include <signal.h>
+
+# if ( __GLIBC__ > 2  || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 0))
+#  include <sys/ucontext.h>
+# else
+#  include <sigcontext.h>
+# endif
+#endif  /*  IN_LIBGCC2  */
 
+
+#if ( __GLIBC__ > 2  || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 0))
 #define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS)		\
   do {									\
     unsigned char *pc_ = (CONTEXT)->ra;					\
@@ -277,3 +287,5 @@
     (FS)->retaddr_column = 8;						\
     goto SUCCESS;							\
   } while (0)
+#endif
+
-- 
Craig Rodrigues        
http://www.gis.net/~craigr    
rodrigc@mediaone.net
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