add hppa-only patch from upstream; build was broken, reported by landry@

sysutils/coreutils/patches/patch-src_longlong_h

@@ -0,0 +1,28 @@
+$OpenBSD: patch-src_longlong_h,v 1.1 2012/12/10 15:01:56 sthen Exp $
+
+http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=da1329e7
+
+* src/longlong.h: Restrict some HPPA assembly variants to PA RISC V2.0.
+Note we also avoid this assembly for ilp32 runtimes, since even though
+the assembly is accepted there, it's not safe as the context can get
+clobbered between the 'add' and 'add,dc'.
+This fixes a compile failure with newer HPPA systems with default
+GCC CPU options.
+
+--- src/longlong.h.orig	Mon Dec 10 14:59:53 2012
++++ src/longlong.h	Mon Dec 10 15:00:25 2012
+@@ -679,7 +679,13 @@ extern UWtype __MPN(udiv_qrnnd) (UWtype *, UWtype, UWt
+ /* These macros are for ABI=2.0w.  In ABI=2.0n they can't be used, since GCC
+    (3.2) puts longlong into two adjacent 32-bit registers.  Presumably this
+    is just a case of no direct support for 2.0n but treating it like 1.0. */
+-#if defined (__hppa) && W_TYPE_SIZE == 64 && ! defined (_LONG_LONG_LIMB)
++#if defined (__hppa) && W_TYPE_SIZE == 64 && ! defined (_LONG_LONG_LIMB) \
++  && defined (_PA_RISC2_0) && defined (_LP64)
++/* Note the _PA_RISC2_0 above is to exclude this code from GCC with
++   default -march options which doesn't support these instructions.
++   Also the width check for 'long' is to avoid ilp32 runtimes where
++   GNU/Linux and narrow HP-UX kernels are known to have issues with
++   clobbering of context between the add and add,dc instructions.  */
+ #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+   __asm__ ("add%I5 %5,%r4,%1\n\tadd,dc %r2,%r3,%0"			\
+ 	   : "=r" (sh), "=&r" (sl)					\