1 files changed, 7 insertions, 1 deletions
diff --git a/src/unix/map.c b/src/unix/map.c
index 7de99c99d..3d0cbbaf8 100644
--- a/src/unix/map.c
+++ b/src/unix/map.c
@@ -6,12 +6,18 @@
  */
 #include <git2/common.h>
 
-#ifndef GIT_WIN32
+#if !defined(GIT_WIN32) && !defined(NO_MMAP)
 
 #include "map.h"
 #include <sys/mman.h>
+#include <unistd.h>
 #include <errno.h>
 
+long git__page_size(void)
+{
+	return sysconf(_SC_PAGE_SIZE);
+}
+
 int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset)
 {
 	int mprot = 0;