From b7d55348abe54faee3ef0429ce030ed3e2ff1a52 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Thu, 8 Apr 2021 14:24:34 +0100
Subject: [PATCH] StormPort.h: Do not assume mmap support

Do not assume mmap by default for the fallback platform, unless it's in a list of platforms that we know have mmap

Upstream commit: https://github.com/ladislav-zezula/StormLib/commit/062868dcdfd8616c55405d42a065c7504fdcaf7a
---
 3rdParty/StormLib/src/StormPort.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/3rdParty/StormLib/src/StormPort.h b/3rdParty/StormLib/src/StormPort.h
index bd7947f94..ba78d7f2b 100644
--- a/3rdParty/StormLib/src/StormPort.h
+++ b/3rdParty/StormLib/src/StormPort.h
@@ -249,13 +249,12 @@
 #endif
 
 //-----------------------------------------------------------------------------
-// Assumption: If the platform is not defined, this must be Linux *grin*
+// Assumption: If the platform is not defined, assume a Linux-like platform
 
 #if !defined(STORMLIB_PLATFORM_DEFINED)
 
   #include <sys/types.h>
   #include <sys/stat.h>
-  #include <sys/mman.h>
   #include <fcntl.h>
   #include <unistd.h>
   #include <stdint.h>
@@ -273,7 +272,13 @@
   #endif
 
   #define STORMLIB_LINUX
-  #define STORMLIB_HAS_MMAP                         // Indicate that we have mmap support
+
+  // Platforms with mmap support
+  #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
+    #include <sys/mman.h>
+    #define STORMLIB_HAS_MMAP
+  #endif
+
   #define STORMLIB_PLATFORM_DEFINED
 
 #endif