Unfortunately, some VxWorks 7r2 system headers rely on a
couple more variations of the predefined macros expected
to characterize a “powerpc” target that we discussed recently.
setjmp.h, for example, relies on __ppc and the absence of
a definition results in “gcc” dejagnu test failures from all
the tests #including that header, which stumble on:
#error "_JBLEN not set!”
The other case is __ppc__ expected by yvals.h, key to libstdc++.
This change adjusts the VxWorks 7 section of our configuration
to honor those expectations.
Olivier
2020-10-29. Olivier Hainque <hain...@adacore.com>
gcc/
* config/rs6000/vxworks.h (TARGET_OS_CPP_BUILTINS): Also
builtin_define __ppc and __ppc__ for VxWorks 7.
diff --git a/gcc/config/rs6000/vxworks.h b/gcc/config/rs6000/vxworks.h
index 9dabdab323ab..51a3250f5dcc 100644
--- a/gcc/config/rs6000/vxworks.h
+++ b/gcc/config/rs6000/vxworks.h
@@ -70,6 +70,12 @@ along with GCC; see the file COPYING3. If not see
builtin_define ("__PPC"); \
builtin_define ("__powerpc"); \
} \
+ \
+ /* __ppc isn't emitted by the system compiler \
+ any more but a few system headers still depend \
+ on it, as well as on __ppc__. */ \
+ builtin_define ("__ppc"); \
+ builtin_define ("__ppc__"); \
} \
\
/* Asserts for #cpu and #machine. */ \
--
2.17.1
