Commit: Fix compile time warnings building with gcc 6.1.1.

[Nick Clifton <nickc at redhat dot com>]

Hi Guys,

  I recently tried building various binutils targets with the gcc 6.1.1
  compiler from the forthcoming Fedora 24 release, and encountered a few
  new compile time warnings.  So I am checking in the patch below to fix
  them.

Cheers
  Nick

etc/ChangeLog
2016-06-13  Nick Clifton  <nickc@redhat.com>

	* texi2pod.pl: Escape curly braces, whilst searching for keyword
	strong.

gas/ChangeLog
2016-06-13  Nick Clifton  <nickc@redhat.com>

	* config/tc-arm.c: For non-ELF based targets skip ARM feature sets
	that are not supported.

	* config/tc-arc.c (md_apply_fix): Avoid left shifting a signed
	constant.
	* config/tc-cr16.c (check_range): Likewise.
	* config/tc-nios2.c (nios2_check_overflow): Likewise.

diff --git a/etc/texi2pod.pl b/etc/texi2pod.pl
index dd3e181..0f465b7 100644
--- a/etc/texi2pod.pl
+++ b/etc/texi2pod.pl
@@ -311,7 +311,7 @@ while(<$inf>) {
 	@columns = ();
 	for $column (split (/\s*\@tab\s*/, $1)) {
 	    # @strong{...} is used a @headitem work-alike
-	    $column =~ s/^\@strong{(.*)}$/$1/;
+	    $column =~ s/^\@strong\{(.*)\}$/$1/;
 	    push @columns, $column;
 	}
 	$_ = "\n=item ".join (" : ", @columns)."\n";
diff --git a/gas/config/tc-arc.c b/gas/config/tc-arc.c
index a5b9a98..966b18d 100644
--- a/gas/config/tc-arc.c
+++ b/gas/config/tc-arc.c
@@ -2916,7 +2916,7 @@ md_apply_fix (fixS *fixP,
      bits of a 32-bit negative value read in by the parser are set,
      so that the correct comparisons are made.  */
   if (value & 0x80000000)
-    value |= (-1L << 31);
+    value |= (-1UL << 31);
 
   reloc = fixP->fx_r_type;
   switch (reloc)
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 5005343..73d0531 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -161,7 +161,9 @@ static const arm_feature_set fpu_arch_vfp_v3 ATTRIBUTE_UNUSED = FPU_ARCH_VFP_V3;
 static const arm_feature_set fpu_arch_neon_v1 ATTRIBUTE_UNUSED = FPU_ARCH_NEON_V1;
 static const arm_feature_set fpu_arch_fpa = FPU_ARCH_FPA;
 static const arm_feature_set fpu_any_hard = FPU_ANY_HARD;
+#ifdef OBJ_ELF
 static const arm_feature_set fpu_arch_maverick = FPU_ARCH_MAVERICK;
+#endif
 static const arm_feature_set fpu_endian_pure = FPU_ARCH_ENDIAN_PURE;
 
 #ifdef CPU_DEFAULT
@@ -198,7 +200,9 @@ static const arm_feature_set arm_ext_div = ARM_FEATURE_CORE_LOW (ARM_EXT_DIV);
 static const arm_feature_set arm_ext_v7 = ARM_FEATURE_CORE_LOW (ARM_EXT_V7);
 static const arm_feature_set arm_ext_v7a = ARM_FEATURE_CORE_LOW (ARM_EXT_V7A);
 static const arm_feature_set arm_ext_v7r = ARM_FEATURE_CORE_LOW (ARM_EXT_V7R);
+#ifdef OBJ_ELF
 static const arm_feature_set arm_ext_v7m = ARM_FEATURE_CORE_LOW (ARM_EXT_V7M);
+#endif
 static const arm_feature_set arm_ext_v8 = ARM_FEATURE_CORE_LOW (ARM_EXT_V8);
 static const arm_feature_set arm_ext_m =
   ARM_FEATURE_CORE (ARM_EXT_V6M | ARM_EXT_OS | ARM_EXT_V7M,
@@ -220,9 +224,11 @@ static const arm_feature_set arm_ext_v6t2_v8m =
 /* Instructions shared between ARMv8-A and ARMv8-M.  */
 static const arm_feature_set arm_ext_atomics =
   ARM_FEATURE_CORE_HIGH (ARM_EXT2_ATOMICS);
+#ifdef OBJ_ELF
 /* DSP instructions Tag_DSP_extension refers to.  */
 static const arm_feature_set arm_ext_dsp =
   ARM_FEATURE_CORE_LOW (ARM_EXT_V5E | ARM_EXT_V5ExP | ARM_EXT_V6_DSP);
+#endif
 static const arm_feature_set arm_ext_ras =
   ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS);
 /* FP16 instructions.  */
@@ -233,7 +239,9 @@ static const arm_feature_set arm_arch_any = ARM_ANY;
 static const arm_feature_set arm_arch_full ATTRIBUTE_UNUSED = ARM_FEATURE (-1, -1, -1);
 static const arm_feature_set arm_arch_t2 = ARM_ARCH_THUMB2;
 static const arm_feature_set arm_arch_none = ARM_ARCH_NONE;
+#ifdef OBJ_ELF
 static const arm_feature_set arm_arch_v6m_only = ARM_ARCH_V6M_ONLY;
+#endif
 
 static const arm_feature_set arm_cext_iwmmxt2 =
   ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2);
@@ -263,10 +271,12 @@ static const arm_feature_set fpu_neon_ext_v1 =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_V1);
 static const arm_feature_set fpu_vfp_v3_or_neon_ext =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
+#ifdef OBJ_ELF
 static const arm_feature_set fpu_vfp_fp16 =
   ARM_FEATURE_COPROC (FPU_VFP_EXT_FP16);
 static const arm_feature_set fpu_neon_ext_fma =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_FMA);
+#endif
 static const arm_feature_set fpu_vfp_ext_fma =
   ARM_FEATURE_COPROC (FPU_VFP_EXT_FMA);
 static const arm_feature_set fpu_vfp_ext_armv8 =
diff --git a/gas/config/tc-cr16.c b/gas/config/tc-cr16.c
index 229f51a..40d9ba4 100644
--- a/gas/config/tc-cr16.c
+++ b/gas/config/tc-cr16.c
@@ -2002,7 +2002,7 @@ check_range (long *num, int bits, int unsigned flags, int update)
      bits of a 32-bit negative value read in by the parser are set,
      so that the correct comparisons are made.  */
   if (value & 0x80000000)
-    value |= (-1L << 31);
+    value |= (-1UL << 31);
 
 
   /* Verify operand value is even.  */
diff --git a/gas/config/tc-nios2.c b/gas/config/tc-nios2.c
index 6bcef1e..0ddc501 100644
--- a/gas/config/tc-nios2.c
+++ b/gas/config/tc-nios2.c
@@ -1128,7 +1128,7 @@ nios2_check_overflow (valueT fixup, reloc_howto_type *howto)
       if ((fixup & 0x80000000) > 0)
 	{
 	  /* Check for negative overflow.  */
-	  if ((signed) fixup < ((signed) ~0 << (howto->bitsize-1)))
+	  if ((signed) fixup < (signed) (~0U << (howto->bitsize - 1)))
 	    return TRUE;
 	}
       else