build: add mingw makefile

* add a very simple Makefile.mingw that builds libuv.a
* apply a couple of fixes to src/win so it actually builds with mingw
  (mostly missing includes)

Fixes #847.

Makefile.mingw

@@ -0,0 +1,75 @@
+# Copyright (c) 2013, Ben Noordhuis <info@bnoordhuis.nl>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+CFLAGS = -Wall \
+         -Wextra \
+         -Wno-unused-parameter \
+         -Iinclude \
+         -Isrc \
+         -Isrc/win \
+         -DWIN32_LEAN_AND_MEAN \
+         -D_WIN32_WINNT=0x0600
+
+INCLUDES = include/stdint-msvc2008.h \
+           include/tree.h \
+           include/uv-errno.h \
+           include/uv-win.h \
+           include/uv.h \
+           src/queue.h \
+           src/uv-common.h \
+           src/win/atomicops-inl.h \
+           src/win/handle-inl.h \
+           src/win/internal.h \
+           src/win/req-inl.h \
+           src/win/stream-inl.h \
+           src/win/winapi.h \
+           src/win/winsock.h
+
+OBJS = src/fs-poll.o \
+       src/inet.o \
+       src/uv-common.o \
+       src/version.o \
+       src/win/async.o \
+       src/win/core.o \
+       src/win/dl.o \
+       src/win/error.o \
+       src/win/fs-event.o \
+       src/win/fs.o \
+       src/win/getaddrinfo.o \
+       src/win/handle.o \
+       src/win/loop-watcher.o \
+       src/win/pipe.o \
+       src/win/poll.o \
+       src/win/process-stdio.o \
+       src/win/process.o \
+       src/win/req.o \
+       src/win/signal.o \
+       src/win/stream.o \
+       src/win/tcp.o \
+       src/win/thread.o \
+       src/win/threadpool.o \
+       src/win/timer.o \
+       src/win/tty.o \
+       src/win/udp.o \
+       src/win/util.o \
+       src/win/winapi.o \
+       src/win/winsock.o
+
+all: libuv.a
+
+libuv.a: $(OBJS)
+	$(AR) crs $@ $^
+
+# FIXME(bnoordhuis) Don't rebuild everything when a source file changes.
+$(OBJS): $(OBJS:.o=.c) $(INCLUDES)

src/win/fs.c

@@ -20,6 +20,7 @@
  */
 
 #include <assert.h>
+#include <stdlib.h>
 #include <malloc.h>
 #include <direct.h>
 #include <errno.h>

src/win/pipe.c

@@ -23,6 +23,7 @@
 #include <io.h>
 #include <string.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 #include "uv.h"
 #include "internal.h"

src/win/tcp.c

@@ -20,6 +20,7 @@
  */
 
 #include <assert.h>
+#include <stdlib.h>
 
 #include "uv.h"
 #include "internal.h"

src/win/util.c

@@ -32,6 +32,7 @@
 #include "internal.h"
 
 #include <winsock2.h>
+#include <winperf.h>
 #include <iphlpapi.h>
 #include <psapi.h>
 #include <tlhelp32.h>