PowerPC: define _CALL_ELF if compiler does not

This patch makes the configure adds -D_CALL_ELF=1 when compiler does
not define _CALL_ELF (versions before powerpc64le support).  It cleans
up compiler warnings on old compiler where _CALL_ELF is not defined
on powerpc64(be) builds.

It does by add a new config.make variable for configure-deduced
CPPFLAGS and accumulate into that (confix-extra-cppflags).  It also
generalizes libc_extra_cflags so it accumulates in sysdeps configure
fragmenets.

1 files changed, 6 insertions, 2 deletions

diff --git a/configure b/configure
index d4b5edb636..abefcdb521 100755
--- a/configure
+++ b/configure
@@ -591,6 +591,7 @@ libc_cv_slibdir
 old_glibc_headers
 use_nscd
 libc_cv_gcc_unwind_find_fde
+libc_extra_cppflags
 libc_extra_cflags
 CPPUNDEFS
 sizeof_long_double
@@ -7199,9 +7200,9 @@ fi
 $as_echo "$libc_cv_predef_stack_protector" >&6; }
 libc_extra_cflags=
 if test $libc_cv_predef_stack_protector = yes; then
-  libc_extra_cflags=-fno-stack-protector
+  libc_extra_cflags="$libc_extra_cflags -fno-stack-protector"
 fi
-
+libc_extra_cppflags=
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker provides __ehdr_start" >&5
 $as_echo_n "checking whether the linker provides __ehdr_start... " >&6; }
@@ -7266,6 +7267,9 @@ $as_echo "running configure fragment for $dir" >&6; }
   fi
 done
 
+
+
+
 if test x$libc_cv_gcc_unwind_find_fde = xyes; then
   $as_echo "#define EXPORT_UNWIND_FIND_FDE 1" >>confdefs.h