From 3fc55bba8ea9c79419a4f08d61be5a3ab7704d86 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Fri, 13 Nov 2009 11:08:30 -0500
Subject: [PATCH] Fix MinGW compilation, bug184.

---
 Changes           |  2 ++
 readme.pod        |  8 ++++----
 src/V3File.cpp    |  6 ++++++
 src/V3Options.cpp | 17 +++++++++++++++++
 4 files changed, 29 insertions(+), 4 deletions(-)

diff --git a/Changes b/Changes
index 2d280dbd5..b6997f6fb 100644
--- a/Changes
+++ b/Changes
@@ -18,6 +18,8 @@ indicates the contributor was also the author of the fix; Thanks!
 
 ***  Add VARHIDDEN warning when signal name hides module name.
 
+**** Fix MinGW compilation, bug184. [by Shankar Giri]
+
 **** Support optional cell parenthesis, bug179. [by Byron Bradley]
 
 **** Support for loop i++, ++i, i--, --i, bug175. [by Byron Bradley]
diff --git a/readme.pod b/readme.pod
index a320bf2e1..e08be3f11 100644
--- a/readme.pod
+++ b/readme.pod
@@ -43,11 +43,11 @@ The resulting executable will perform the actual simulation.
 
 This version of verilator has been built and tested on:
 
-    SuSE AMD64 i686-linux-2.6.5
+    SuSE 11.1 AMD64 i686-linux-2.6.27, GCC 4.3.2
 
-Other users report success with Redhat Linux, Windows under Cygwin, Macs,
-HPUX and Solaris.  It should run with minor porting on any Linixish
-platform.
+Other users report success with Redhat Linux, Windows under Cygwin, Windows
+under MinGW, Macs, HPUX and Solaris.  It should run with minor porting on
+any Linix-ish platform.
 
 =head1 INSTALLATION
 
diff --git a/src/V3File.cpp b/src/V3File.cpp
index 17c5df05f..a988079ed 100644
--- a/src/V3File.cpp
+++ b/src/V3File.cpp
@@ -146,7 +146,9 @@ inline void V3FileDependImp::writeTimes(const string& filename, const string& cm
     string cmdline = stripQuotes(cmdlineIn);
     *ofp<<"C \""<<cmdline<<"\""<<endl;
 
+#if !defined (__MINGW32__)
     sync();  // Push files so sizes look correct
+#endif
     for (set<DependFile>::iterator iter=m_filenameList.begin();
 	 iter!=m_filenameList.end(); ++iter) {
 	// Read stats of files we create after we're done making them (execpt for this file, of course)
@@ -238,7 +240,11 @@ void V3File::createMakeDir() {
     static bool created = false;
     if (!created) {
 	created = true;
+#if !defined (__MINGW32__)
 	mkdir(v3Global.opt.makeDir().c_str(), 0777);
+#else
+	mkdir(v3Global.opt.makeDir().c_str());
+#endif
     }
 }
 
diff --git a/src/V3Options.cpp b/src/V3Options.cpp
index 7718ad3f1..cdb7f048d 100644
--- a/src/V3Options.cpp
+++ b/src/V3Options.cpp
@@ -23,7 +23,9 @@
 #include "verilatedos.h"
 #include <sys/types.h>
 #include <sys/stat.h>
+#if !defined(__MINGW32__)
 #include <sys/utsname.h>
+#endif
 #include <cctype>
 #include <dirent.h>
 #include <unistd.h>
@@ -318,7 +320,16 @@ void V3Options::setenvStr(const string& envvar, const string& value, const strin
     } else {
 	UINFO(1,"export "<<envvar<<"="<<value<<endl);
     }
+//setenv() replaced by putenv() in MinGW environment. Prototype is different
+//putenv() requires NAME=VALUE format
+#if !defined (__MINGW32__)
     setenv(envvar.c_str(),value.c_str(),true);
+#else
+    int len = value.size() + envvar.size() + 5;
+    char *str = new char[len];
+    sprintf(str,"%s=%s", envvar.c_str(), value.c_str());
+    putenv(str);
+#endif
 }
 
 string V3Options::getenvSYSTEMC() {
@@ -344,12 +355,18 @@ string V3Options::getenvSYSTEMC_ARCH() {
 	setenvStr("SYSTEMC_ARCH", var, "Hardcoded at build time");
     }
     if (var == "") {
+#if defined (__MINGW32__)
+        // Hardcoded with MINGW current version. Would like a better way.
+        string sysname = "MINGW32_NT-5.0";
+        var = "mingw32";
+#else
 	struct utsname uts;
 	uname(&uts);
 	string sysname = downcase(uts.sysname);  // aka  'uname -s'
 	if (wildmatch(sysname.c_str(), "*solaris*")) { var = "gccsparcOS5"; }
 	else if (wildmatch(sysname.c_str(), "*cygwin*")) { var ="cygwin"; }
 	else { var = "linux"; }
+#endif
 	setenvStr("SYSTEMC_ARCH", var,"From sysname '"+sysname+"'");
     }
     return var;