From 5ec17e610609b8ca80cf8ce4f33f8c03ea48a090 Mon Sep 17 00:00:00 2001
From: Raphael Kubo da Costa <rakuco@FreeBSD.org>
Date: Fri, 15 Jul 2016 12:46:53 +0200
Subject: [PATCH] Ninja: Generalize check for sysconf(3) call

Use `sysconf(_SC_ARG_MAX)` wherever `_SC_ARG_MAX` is available instead
of hard-coding an incomplete list of operating systems that implement
it.  In particular, it is available on BSD platforms that were not
previously listed.
---
 Source/cmNinjaNormalTargetGenerator.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 81a161838..1e8372243 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -374,7 +374,7 @@ static int calculateCommandLineLengthLimit(int linkRuleLength)
 #ifdef _WIN32
     8000,
 #endif
-#if defined(__APPLE__) || defined(__HAIKU__) || defined(__linux)
+#if defined(_SC_ARG_MAX)
     // for instance ARG_MAX is 2096152 on Ubuntu or 262144 on Mac
     ((int)sysconf(_SC_ARG_MAX)) - 1000,
 #endif