For cproj test-case, use glibc version xfail

2014-08-04  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/cproj-fails-with-broken-glibc.c: Use xfail for broken glibc
	version instead of required-target.
	* lib/target-supports.exp
	(check_effective_target_not_glibc_2_11_or_earlier): Replace by ...
	(check_effective_target_glibc_2_11_or_earlier): ... this.

	* doc/sourcebuild.texi (glibc, glibc_2_12_or_later)
	(glibc_2_11_or_earlier): Document effective-target keywords.

From-SVN: r213543

gcc/ChangeLog

+2014-08-04  Tom de Vries  <tom@codesourcery.com>
+
+	* doc/sourcebuild.texi (glibc, glibc_2_12_or_later)
+	(glibc_2_11_or_earlier): Document effective-target keywords.
+
 2014-08-01  Jan Hubicka  <hubicka@ucw.cz>
 
 	* ipa-devirt.c (odr_type_warn_count): Add type.

gcc/doc/sourcebuild.texi

@@ -1804,6 +1804,15 @@ Target is a VxWorks RTP.
 
 @item wchar
 Target supports wide characters.
+
+@item glibc
+Target supports glibc
+
+@item glibc_2_12_or_later
+Target supports glibc 2.12 or later
+
+@item glibc_2_11_or_earlier
+Target supports glibc 2.11 or earlier
 @end table
 
 @subsubsection Other attributes

gcc/testsuite/ChangeLog

+2014-08-04  Tom de Vries  <tom@codesourcery.com>
+
+	* gcc.dg/cproj-fails-with-broken-glibc.c: Use xfail for broken glibc
+	version instead of required-target.
+	* lib/target-supports.exp
+	(check_effective_target_not_glibc_2_11_or_earlier): Replace by ...
+	(check_effective_target_glibc_2_11_or_earlier): ... this.
+
 2014-08-04  Arnaud Charlet  <charlet@adacore.com>
 
 	* gnat.dg/discr6.adb, gnat.dg/discr6_pkg.ads: Removed, no longer

gcc/testsuite/gcc.dg/cproj-fails-with-broken-glibc.c

@@ -7,11 +7,10 @@
 
    Origin: Kaveh R. Ghazi,  April 20, 2010.  */
 
-/* { dg-do run } */
+/* { dg-do run { xfail glibc_2_11_or_earlier } } */
 /* { dg-options "-fno-builtin-cproj" } */
 /* { dg-add-options c99_runtime } */
 /* { dg-require-effective-target c99_runtime } */
-/* { dg-require-effective-target not_glibc_2_11_or_earlier } */
 
 extern void abort(void);
 extern void exit(int);

gcc/testsuite/lib/target-supports.exp

@@ -5061,19 +5061,19 @@ proc check_effective_target_glibc_2_12_or_later {} {
     }]
 }
 
-# Return true if this is a not a glibc 2.11 or earlier target.
+# Return true if this is a glibc 2.11 or earlier target.
 
-proc check_effective_target_not_glibc_2_11_or_earlier {} {
+proc check_effective_target_glibc_2_11_or_earlier {} {
 
     if { ![check_effective_target_glibc] } {
 	return 1
     }
     
     if { [check_effective_target_glibc_2_12_or_later] } {
-	return 1
+	return 0
     }
 
-    return 0
+    return 1
 }
 
 # Return true if this is NOT a Bionic target.