On 11/01/2014 07:20 AM, Joseph S. Myers wrote:
This patch implements support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV for
powerpc*-*-linux* soft-float and e500, provided GCC is configured for
glibc 2.19 or later on the target.
The patch causes a bootstrap error on targets with glibc < 2.19 for
defined but unused variables. The following fixes that and was committed
as obvious.
-Pat
2014-11-04 Pat Haugen <pthau...@us.ibm.com>
* config/rs6000/rs6000.c (atomic_hold_decl, atomic_clear_decl,
atomic_update_decl): Guard declaration with #ifdef.
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c (revision 217101)
+++ gcc/config/rs6000/rs6000.c (working copy)
@@ -34590,8 +34590,10 @@ make_pass_analyze_swaps (gcc::context *c
return new pass_analyze_swaps (ctxt);
}
+#ifdef RS6000_GLIBC_ATOMIC_FENV
/* Function declarations for rs6000_atomic_assign_expand_fenv. */
static tree atomic_hold_decl, atomic_clear_decl, atomic_update_decl;
+#endif
/* Implement TARGET_ATOMIC_ASSIGN_EXPAND_FENV hook. */
