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-rw-r--r--winsup/cygwin/include/cygwin/version.h3
-rw-r--r--winsup/cygwin/include/sys/mman.h3
2 files changed, 5 insertions, 1 deletions
diff --git a/winsup/cygwin/include/cygwin/version.h b/winsup/cygwin/include/cygwin/version.h
index 6d965fdff..6b3ed586b 100644
--- a/winsup/cygwin/include/cygwin/version.h
+++ b/winsup/cygwin/include/cygwin/version.h
@@ -250,12 +250,13 @@ details. */
120: Export basename, dirname.
122: Export statvfs, fstatvfs.
123: Export utmpxname.
+ 124: Add MAP_AUTOGROW flag to mmap.
*/
/* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
#define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 123
+#define CYGWIN_VERSION_API_MINOR 124
/* There is also a compatibity version number associated with the
shared memory regions. It is incremented when incompatible
diff --git a/winsup/cygwin/include/sys/mman.h b/winsup/cygwin/include/sys/mman.h
index 3264739c0..21bf6976d 100644
--- a/winsup/cygwin/include/sys/mman.h
+++ b/winsup/cygwin/include/sys/mman.h
@@ -30,6 +30,9 @@ extern "C" {
#define MAP_FIXED 0x10
#define MAP_ANONYMOUS 0x20
#define MAP_ANON MAP_ANONYMOUS
+/* Non-standard flag */
+#define MAP_AUTOGROW 0x8000 /* Grow underlying object to mapping size.
+ File must be opened for writing. */
#define MAP_FAILED ((void *)-1)