gcc fails to build on NetBSD 4 and current because of how the NetBSD SSP 
include files are handled (the gcc build process plays tricks with 
include paths, and files from GCC's SSP directory get included when the 
NetBSD string.h includes ssp/string.h). [*]

This is obviously a gcc issue, and I usually do not advocate changing the 
OS to make other software's broken build processes to work, but I think 
it may make sense to fix this in our includes since this is after all a 
gcc feature we have added (besides, fixing this in NetBSD will make my 
life easier... ;)

So, does it make sense to change our headers (current and netbsd-4) as 
the patch below?

    /Krister

* It is possible to build by giving --disable-libssp to configure, but
   i think it is nice to be able to build a full gcc distribution, so
   that NetBSD users can use improvements that future gcc may introduce,
   and to benchmark against the NetBSD native version.


Index: stdio.h
===================================================================
RCS file: /cvsroot/src/include/stdio.h,v
retrieving revision 1.69
diff -u -r1.69 stdio.h
--- stdio.h	30 May 2007 21:14:37 -0000	1.69
+++ stdio.h	1 Aug 2007 19:07:58 -0000
@@ -476,6 +476,8 @@
  #define putchar_unlocked(x)	putc_unlocked(x, stdout)
  #endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */

+#if _FORTIFY_SOURCE > 0
  #include <ssp/stdio.h>
+#endif

  #endif /* _STDIO_H_ */
Index: string.h
===================================================================
RCS file: /cvsroot/src/include/string.h,v
retrieving revision 1.32
diff -u -r1.32 string.h
--- string.h	30 May 2007 21:14:37 -0000	1.32
+++ string.h	1 Aug 2007 19:07:58 -0000
@@ -91,5 +91,7 @@
  #endif
  __END_DECLS

+#if _FORTIFY_SOURCE > 0
  #include <ssp/string.h>
+#endif
  #endif /* !defined(_STRING_H_) */
Index: strings.h
===================================================================
RCS file: /cvsroot/src/include/strings.h,v
retrieving revision 1.11
diff -u -r1.11 strings.h
--- strings.h	30 May 2007 21:14:37 -0000	1.11
+++ strings.h	1 Aug 2007 19:07:58 -0000
@@ -68,5 +68,7 @@
  #include <string.h>
  #endif

+#if _FORTIFY_SOURCE > 0
  #include <ssp/strings.h>
+#endif
  #endif /* !defined(_STRINGS_H_) */
Index: unistd.h
===================================================================
RCS file: /cvsroot/src/include/unistd.h,v
retrieving revision 1.111
diff -u -r1.111 unistd.h
--- unistd.h	30 May 2007 21:14:37 -0000	1.111
+++ unistd.h	1 Aug 2007 19:07:58 -0000
@@ -364,5 +364,7 @@

  __END_DECLS

+#if _FORTIFY_SOURCE > 0
  #include <ssp/unistd.h>
+#endif
  #endif /* !_UNISTD_H_ */