Merge from trunk.

[gnu-emacs] / lib / stdlib.in.h

diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index 2697a4bd1dbd3687f270eb33210bd164958f3916..62a2ce920e6955e389513b1a4b23c2df8f20210e 100644 (file)
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -28,13 +28,13 @@
 #else
 /* Normal invocation convention.  */
 
-#ifndef _GL_STDLIB_H
+#ifndef _@GUARD_PREFIX@_STDLIB_H
 
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
 
-#ifndef _GL_STDLIB_H
-#define _GL_STDLIB_H
+#ifndef _@GUARD_PREFIX@_STDLIB_H
+#define _@GUARD_PREFIX@_STDLIB_H
 
 /* NetBSD 5.0 mis-defines NULL.  */
 #include <stddef.h>
@@ -81,8 +81,9 @@ struct random_data
 # endif
 #endif
 
-#if (@GNULIB_MKSTEMP@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
 /* On MacOS X 10.3, only <unistd.h> declares mkstemp.  */
+/* On MacOS X 10.5, only <unistd.h> declares mkstemps.  */
 /* On Cygwin 1.7.1, only <unistd.h> declares getsubopt.  */
 /* But avoid namespace pollution on glibc systems and native Windows.  */
 # include <unistd.h>
@@ -255,9 +256,14 @@ _GL_WARN_ON_USE (ptsname, "grantpt is not portable - "
 # endif
 #endif
 
+/* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
+   rely on GNU or POSIX semantics for malloc and realloc (for example,
+   by never specifying a zero size), so it does not need malloc or
+   realloc to be redefined.  */
 #if @GNULIB_MALLOC_POSIX@
 # if @REPLACE_MALLOC@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
+        || _GL_USE_STDLIB_ALLOC)
 #   undef malloc
 #   define malloc rpl_malloc
 #  endif
@@ -267,7 +273,7 @@ _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
 # endif
 _GL_CXXALIASWARN (malloc);
-#elif defined GNULIB_POSIXCHECK
+#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 # undef malloc
 /* Assume malloc is always declared.  */
 _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
@@ -531,7 +537,8 @@ _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 
 #if @GNULIB_REALLOC_POSIX@
 # if @REPLACE_REALLOC@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
+        || _GL_USE_STDLIB_ALLOC)
 #   undef realloc
 #   define realloc rpl_realloc
 #  endif
@@ -541,7 +548,7 @@ _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 # endif
 _GL_CXXALIASWARN (realloc);
-#elif defined GNULIB_POSIXCHECK
+#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 # undef realloc
 /* Assume realloc is always declared.  */
 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
@@ -754,6 +761,6 @@ _GL_CXXALIASWARN (wctomb);
 #endif
 
 
-#endif /* _GL_STDLIB_H */
-#endif /* _GL_STDLIB_H */
+#endif /* _@GUARD_PREFIX@_STDLIB_H */
+#endif /* _@GUARD_PREFIX@_STDLIB_H */
 #endif