From 2dcc87d4328079489fd96eb0fd29a52aefa33fed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20=C4=8Ciha=C5=99?= <nijel@debian.org>
Date: Sat, 11 Nov 2017 14:27:10 +0100
Subject: [PATCH] tools/sepdebugcrcfix: Conditionally use MAP_POPULATE with
 mmap()

Not all architectures offer MAP_POPULATE. As MAP_POPULATE is only an
optimization to improve performance, it is safe to drop it when it is
unavailable.

Original message from patch file:

> Fix compilation on platforms without MAP_POPULATE

Original patch URI: https://salsa.debian.org/pkg-rpm-team/rpm/raw/1af008f89ee30a604de1c617c8bb9dc4dcd8bf81/debian/patches/map-populate.patch
---
 tools/sepdebugcrcfix.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/sepdebugcrcfix.c b/tools/sepdebugcrcfix.c
index b85434eb71..fba460014f 100644
--- a/tools/sepdebugcrcfix.c
+++ b/tools/sepdebugcrcfix.c
@@ -154,7 +154,11 @@ crc32 (const char *fname, const char *base_fname, uint32_t *crcp)
       void *map = NULL;
       if (buf == NULL)
 	{
-	  map = mmap (NULL, maplen, PROT_READ, MAP_PRIVATE | MAP_POPULATE,
+	  map = mmap (NULL, maplen, PROT_READ, MAP_PRIVATE
+#ifdef MAP_POPULATE
+      | MAP_POPULATE
+#endif
+      ,
 		      fd, offset);
 	  if (map == MAP_FAILED)
 	    {