X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-compat-util.h;h=c1bcb001a51324ebcb66bfb0a695e20ff366df02;hb=fb9a54150d308345a7027baae528b8fe90bd41f7;hp=55456da37cdd25126b7bccae879ca500176220f9;hpb=22bac0ea528fd419cb833cab5de79a36fad91524;p=git.git

diff --git a/git-compat-util.h b/git-compat-util.h
index 55456da37..c1bcb001a 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -15,8 +15,9 @@
 #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
 #endif
-#define _GNU_SOURCE
-#define _BSD_SOURCE
+#define _ALL_SOURCE 1
+#define _GNU_SOURCE 1
+#define _BSD_SOURCE 1
 
 #include <unistd.h>
 #include <stdio.h>
@@ -45,7 +46,10 @@
 #include <arpa/inet.h>
 #include <netdb.h>
 #include <pwd.h>
+#include <inttypes.h>
+#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
 #include <grp.h>
+#define _ALL_SOURCE 1
 
 #ifndef NO_ICONV
 #include <iconv.h>
@@ -105,9 +109,12 @@ extern int git_munmap(void *start, size_t length);
 #endif /* NO_MMAP */
 
 #define DEFAULT_PACKED_GIT_LIMIT \
-	(sizeof(void*) >= 8 \
-		?   8 * 1024 * 1024 * 1024 \
-		: 256 * 1024 * 1024)
+	((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
+
+#ifdef NO_PREAD
+#define pread git_pread
+extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
+#endif
 
 #ifdef NO_SETENV
 #define setenv gitsetenv
@@ -199,6 +206,8 @@ static inline void *xmmap(void *start, size_t length,
 {
 	void *ret = mmap(start, length, prot, flags, fd, offset);
 	if (ret == MAP_FAILED) {
+		if (!length)
+			return NULL;
 		release_pack_memory(length);
 		ret = mmap(start, length, prot, flags, fd, offset);
 		if (ret == MAP_FAILED)