From cdab57de00ab7ce157f1fdd601ce242588fcadce Mon Sep 17 00:00:00 2001
From: Mike Seplowitz <mseplowitz@bloomberg.net>
Date: Mon, 12 Jan 2015 20:53:14 -0500
Subject: Fix getopt for AIX

AIX supplies getopt but not getopt_long.

We can't use the embedded getopt implementation, since the constness of its
arguments doesn't match the AIX system routine.
---
 configure.py      | 2 ++
 src/getopt.c      | 2 ++
 src/getopt.h      | 2 ++
 src/ninja.cc      | 3 +++
 src/ninja_test.cc | 3 +++
 5 files changed, 12 insertions(+)

diff --git a/configure.py b/configure.py
index fcea72a..611030f 100755
--- a/configure.py
+++ b/configure.py
@@ -494,6 +494,8 @@ if platform.is_windows():
     objs += cc('getopt')
 else:
     objs += cxx('subprocess-posix')
+if platform.is_aix():
+    objs += cc('getopt')
 if platform.is_msvc():
     ninja_lib = n.build(built('ninja.lib'), 'ar', objs)
 else:
diff --git a/src/getopt.c b/src/getopt.c
index 3350fb9..0c2ef35 100644
--- a/src/getopt.c
+++ b/src/getopt.c
@@ -385,11 +385,13 @@ getopt_internal (int argc, char **argv, char *shortopts,
     return optopt;
 }
 
+#ifndef _AIX
 int
 getopt (int argc, char **argv, char *optstring)
 {
   return getopt_internal (argc, argv, optstring, NULL, NULL, 0);
 }
+#endif
 
 int
 getopt_long (int argc, char **argv, const char *shortopts,
diff --git a/src/getopt.h b/src/getopt.h
index b4247fb..965dc29 100644
--- a/src/getopt.h
+++ b/src/getopt.h
@@ -39,7 +39,9 @@ extern "C"
   extern int optopt;
 
   /* function prototypes */
+#ifndef _AIX
   int getopt (int argc, char **argv, char *optstring);
+#endif
   int getopt_long (int argc, char **argv, const char *shortopts,
                    const GETOPT_LONG_OPTION_T * longopts, int *longind);
   int getopt_long_only (int argc, char **argv, const char *shortopts,
diff --git a/src/ninja.cc b/src/ninja.cc
index a3d963f..f71f6dc 100644
--- a/src/ninja.cc
+++ b/src/ninja.cc
@@ -22,6 +22,9 @@
 #include "getopt.h"
 #include <direct.h>
 #include <windows.h>
+#elif defined(_AIX)
+#include "getopt.h"
+#include <unistd.h>
 #else
 #include <getopt.h>
 #include <unistd.h>
diff --git a/src/ninja_test.cc b/src/ninja_test.cc
index 54d8784..11087b6 100644
--- a/src/ninja_test.cc
+++ b/src/ninja_test.cc
@@ -17,6 +17,9 @@
 
 #ifdef _WIN32
 #include "getopt.h"
+#elif defined(_AIX)
+#include "getopt.h"
+#include <unistd.h>
 #else
 #include <getopt.h>
 #endif
-- 
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