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-rw-r--r--c/src/ChangeLog5
-rw-r--r--c/src/aclocal/ppc.m413
2 files changed, 16 insertions, 2 deletions
diff --git a/c/src/ChangeLog b/c/src/ChangeLog
index 788df10a5b..9f426d2564 100644
--- a/c/src/ChangeLog
+++ b/c/src/ChangeLog
@@ -1,3 +1,8 @@
+2005-02-16 Ralf Corsepius <ralf.corsepius@rtems.org>
+
+ * aclocal/ppc.m4; Dynamically switch between {old|new} exceptions
+ depending upon presence of _OLD_EXCEPTIONS in CFLAGS.
+
2005-02-11 Ralf Corsepius <ralf.corsepius@rtems.org>
* configure.ac: Remove HAS_WRAPUP_LIBBSP.
diff --git a/c/src/aclocal/ppc.m4 b/c/src/aclocal/ppc.m4
index 696c7f2365..7275685a44 100644
--- a/c/src/aclocal/ppc.m4
+++ b/c/src/aclocal/ppc.m4
@@ -7,6 +7,15 @@
AC_DEFUN([RTEMS_PPC_EXCEPTIONS],
[
-exceptions="$1-exceptions"
-AC_SUBST(exceptions)
+AC_MSG_CHECKING([for style of powerpc exceptions])
+AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [],
+ [#if defined(_OLD_EXCEPTIONS)
+ choke me
+ #endif])],
+ [EXCEPTIONS=new],
+ [EXCEPTIONS=old])
+AC_MSG_RESULT([$EXCEPTIONS])
+AC_SUBST([exceptions],[$EXCEPTIONS-exceptions])
])