[Python-checkins] cpython (3.2): - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper

[barry.warsaw]

http://hg.python.org/cpython/rev/cc00e09404e6
changeset:   71429:cc00e09404e6
branch:      3.2
parent:      71418:f8c4ac9aa9e2
user:        Barry Warsaw <barry at python.org>
date:        Tue Jul 19 18:28:30 2011 -0400
summary:
  - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper
  signature.  Without this, architectures where sizeof void* != sizeof int are
  broken.  Patch given by Hallvard B Furuseth.

files:
  Misc/NEWS                             |  11 +++++++++--
  Modules/_ctypes/libffi/src/dlmalloc.c |   5 +++++
  2 files changed, 14 insertions(+), 2 deletions(-)


diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -14,8 +14,8 @@
   format string that contains positional fields. Initial patch by
   Julian Berman.
 
-- Issue #11627: Fix segfault when __new__ on a exception returns a non-exception
-  class.
+- Issue #11627: Fix segfault when __new__ on a exception returns a
+  non-exception class.
 
 - Issue #12149: Update the method cache after a type's dictionnary gets
   cleared by the garbage collector.  This fixes a segfault when an instance
@@ -71,6 +71,13 @@
 - Issue #12451: xml.dom.pulldom: parse() now opens files in binary mode instead
   of the text mode (using the locale encoding) to avoid encoding issues.
 
+Extension Modules
+-----------------
+
+- Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper
+  signature.  Without this, architectures where sizeof void* != sizeof int are
+  broken.  Patch given by Hallvard B Furuseth.
+
 C-API
 -----
 
diff --git a/Modules/_ctypes/libffi/src/dlmalloc.c b/Modules/_ctypes/libffi/src/dlmalloc.c
--- a/Modules/_ctypes/libffi/src/dlmalloc.c
+++ b/Modules/_ctypes/libffi/src/dlmalloc.c
@@ -457,6 +457,11 @@
 #define LACKS_ERRNO_H
 #define MALLOC_FAILURE_ACTION
 #define MMAP_CLEARS 0 /* WINCE and some others apparently don't clear */
+#elif !defined _GNU_SOURCE
+/* mremap() on Linux requires this via sys/mman.h
+ * See roundup issue 10309
+ */
+#define _GNU_SOURCE 1
 #endif  /* WIN32 */
 
 #if defined(DARWIN) || defined(_DARWIN)

-- 
Repository URL: http://hg.python.org/cpython