Sync with the latest Gnulib code (177f525)

Signed-off-by: Thomas Guyot-Sionnest <dermoth@aei.ca>

1 files changed, 70 insertions, 70 deletions

diff --git a/gl/m4/stdbool.m4 b/gl/m4/stdbool.m4
index 57c804a8..3d672d74 100644
--- a/gl/m4/stdbool.m4
+++ b/gl/m4/stdbool.m4
@@ -1,6 +1,6 @@
 # Check for stdbool.h that conforms to C99.
 
-dnl Copyright (C) 2002-2006, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -38,77 +38,77 @@ AC_DEFUN([AC_HEADER_STDBOOL],
   [AC_CACHE_CHECK([for stdbool.h that conforms to C99],
      [ac_cv_header_stdbool_h],
      [AC_TRY_COMPILE(
-	[
-	  #include <stdbool.h>
-	  #ifndef bool
-	   "error: bool is not defined"
-	  #endif
-	  #ifndef false
-	   "error: false is not defined"
-	  #endif
-	  #if false
-	   "error: false is not 0"
-	  #endif
-	  #ifndef true
-	   "error: true is not defined"
-	  #endif
-	  #if true != 1
-	   "error: true is not 1"
-	  #endif
-	  #ifndef __bool_true_false_are_defined
-	   "error: __bool_true_false_are_defined is not defined"
-	  #endif
+        [
+          #include <stdbool.h>
+          #ifndef bool
+           "error: bool is not defined"
+          #endif
+          #ifndef false
+           "error: false is not defined"
+          #endif
+          #if false
+           "error: false is not 0"
+          #endif
+          #ifndef true
+           "error: true is not defined"
+          #endif
+          #if true != 1
+           "error: true is not 1"
+          #endif
+          #ifndef __bool_true_false_are_defined
+           "error: __bool_true_false_are_defined is not defined"
+          #endif
 
-	  struct s { _Bool s: 1; _Bool t; } s;
+          struct s { _Bool s: 1; _Bool t; } s;
 
-	  char a[true == 1 ? 1 : -1];
-	  char b[false == 0 ? 1 : -1];
-	  char c[__bool_true_false_are_defined == 1 ? 1 : -1];
-	  char d[(bool) 0.5 == true ? 1 : -1];
-	  bool e = &s;
-	  char f[(_Bool) 0.0 == false ? 1 : -1];
-	  char g[true];
-	  char h[sizeof (_Bool)];
-	  char i[sizeof s.t];
-	  enum { j = false, k = true, l = false * true, m = true * 256 };
-	  _Bool n[m];
-	  char o[sizeof n == m * sizeof n[0] ? 1 : -1];
-	  char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
-	  #if defined __xlc__ || defined __GNUC__
-	   /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
-	      reported by James Lemley on 2005-10-05; see
-	      http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
-	      This test is not quite right, since xlc is allowed to
-	      reject this program, as the initializer for xlcbug is
-	      not one of the forms that C requires support for.
-	      However, doing the test right would require a run-time
-	      test, and that would make cross-compilation harder.
-	      Let us hope that IBM fixes the xlc bug, and also adds
-	      support for this kind of constant expression.  In the
-	      meantime, this test will reject xlc, which is OK, since
-	      our stdbool.h substitute should suffice.  We also test
-	      this with GCC, where it should work, to detect more
-	      quickly whether someone messes up the test in the
-	      future.  */
-	   char digs[] = "0123456789";
-	   int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
-	  #endif
-	  /* Catch a bug in an HP-UX C compiler.  See
-	     http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-	     http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
-	   */
-	  _Bool q = true;
-	  _Bool *pq = &q;
-	],
-	[
-	  *pq |= q;
-	  *pq |= ! q;
-	  /* Refer to every declared value, to avoid compiler optimizations.  */
-	  return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
-		  + !m + !n + !o + !p + !q + !pq);
-	],
-	[ac_cv_header_stdbool_h=yes],
-	[ac_cv_header_stdbool_h=no])])
+          char a[true == 1 ? 1 : -1];
+          char b[false == 0 ? 1 : -1];
+          char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+          char d[(bool) 0.5 == true ? 1 : -1];
+          bool e = &s;
+          char f[(_Bool) 0.0 == false ? 1 : -1];
+          char g[true];
+          char h[sizeof (_Bool)];
+          char i[sizeof s.t];
+          enum { j = false, k = true, l = false * true, m = true * 256 };
+          _Bool n[m];
+          char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+          char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+          #if defined __xlc__ || defined __GNUC__
+           /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+              reported by James Lemley on 2005-10-05; see
+              http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+              This test is not quite right, since xlc is allowed to
+              reject this program, as the initializer for xlcbug is
+              not one of the forms that C requires support for.
+              However, doing the test right would require a run-time
+              test, and that would make cross-compilation harder.
+              Let us hope that IBM fixes the xlc bug, and also adds
+              support for this kind of constant expression.  In the
+              meantime, this test will reject xlc, which is OK, since
+              our stdbool.h substitute should suffice.  We also test
+              this with GCC, where it should work, to detect more
+              quickly whether someone messes up the test in the
+              future.  */
+           char digs[] = "0123456789";
+           int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+          #endif
+          /* Catch a bug in an HP-UX C compiler.  See
+             http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+             http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+           */
+          _Bool q = true;
+          _Bool *pq = &q;
+        ],
+        [
+          *pq |= q;
+          *pq |= ! q;
+          /* Refer to every declared value, to avoid compiler optimizations.  */
+          return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+                  + !m + !n + !o + !p + !q + !pq);
+        ],
+        [ac_cv_header_stdbool_h=yes],
+        [ac_cv_header_stdbool_h=no])])
    AC_CHECK_TYPES([_Bool])
    if test $ac_cv_header_stdbool_h = yes; then
      AC_DEFINE([HAVE_STDBOOL_H], [1], [Define to 1 if stdbool.h conforms to C99.])