[Bug libc/6824] New: Usage of __LONGDOUBLE128 instead of __LONG_DOUBLE_128__ causes PowerPC checklocal-plt make check failure

["rsa at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>]

Erroneous usage of __LONGDOUBLE128 (which was introduced to GCC for AIX support)
was causing mathinline.h to lack an implementation of __signbitl for powerpc32.
 This caused checklocal-plt make check failure for PowerPC.

The correct define to use is __LONG_DOUBLE_128__.

diff -X /home/ryanarn/bin/dontdiff -uNr
glibc/sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h
glibc.new/sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h
--- glibc/sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h     2008-08-07
10:54:03.000000000 -0500
+++ glibc.new/sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h 2008-08-07
16:17:36.000000000 -0500
@@ -72,7 +72,7 @@
   __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
   return __u.__i[0] < 0;
 }
-#  ifdef __LONGDOUBLE128
+#  ifdef __LONG_DOUBLE_128__
 __MATH_INLINE int
 __NTH (__signbitl (long double __x))
 {

I'll post this to mainline with a ChangeLog after full testing with GCC 4.1 &
GCC 4.3 compilers and on different PowerPC arches.

-- 
           Summary: Usage of __LONGDOUBLE128 instead of __LONG_DOUBLE_128__
                    causes PowerPC checklocal-plt make check failure
           Product: glibc
           Version: 2.8
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: rsa at us dot ibm dot com
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: powerpc64-linux
  GCC host triplet: powerpc64-linux
GCC target triplet: powerpc64-linux


http://sourceware.org/bugzilla/show_bug.cgi?id=6824

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