Use precompiled headers when compiling with GCC.

The unix-adapter doesn't use PCH, because MSYS1's compiler doesn't support
them.

Makefile

@@ -22,6 +22,7 @@
 
 default : all
 
+USE_PCH ?= 1
 PREFIX ?= /usr/local
 UNIX_ADAPTER_EXE ?= console.exe
 
@@ -62,11 +63,32 @@ build/$1/%.o : src/%.cc VERSION.txt
 	@$$(UNIX_CXX) $$(UNIX_CXXFLAGS) $2 -I src/include -c -o $$@ $$<
 endef
 
+ifeq "$(USE_PCH)" "1"
+PCH_INCLUDE := -include
+else
+PCH_INCLUDE :=
+endif
+
 define def_mingw_target
-build/$1/%.o : src/%.cc VERSION.txt
+ifeq "$$(USE_PCH)" "1"
+H_$(1)     := build/$1/PrecompiledHeader.h
+H_GCH_$(1) := build/$1/PrecompiledHeader.h.gch
+
+$$(H_$(1)) : src/shared/PrecompiledHeader.h
+	@echo Copying $$< to $$@
+	@mkdir -p $$(dir $$@)
+	@cp $$< $$@
+
+$$(H_GCH_$(1)) : $$(H_$(1))
 	@echo Compiling $$<
 	@mkdir -p $$(dir $$@)
-	@$$(MINGW_CXX) $$(MINGW_CXXFLAGS) $2 -I src/include -c -o $$@ $$<
+	@$$(MINGW_CXX) $$(MINGW_CXXFLAGS) $2 -c -o $$@ $$<
+endif
+
+build/$1/%.o : src/%.cc VERSION.txt $$(H_GCH_$(1))
+	@echo Compiling $$<
+	@mkdir -p $$(dir $$@)
+	@$$(MINGW_CXX) $$(MINGW_CXXFLAGS) $2 $$(PCH_INCLUDE) $$(H_$(1)) -I src/include -c -o $$@ $$<
 endef
 
 include src/subdir.mk

ship/ship.py

@@ -97,7 +97,7 @@ def buildTarget(target):
     os.environ["PATH"] = target["path"] + ";" + oldPath
     subprocess.check_call(["sh.exe", "configure"])
     subprocess.check_call(["make.exe", "clean"])
-    buildArgs = ["make.exe", "all", "tests"]
+    buildArgs = ["make.exe", "USE_PCH=0", "all", "tests"]
     if target.get("allow_parallel_make", True):
         buildArgs += ["-j8"]
     subprocess.check_call(buildArgs)

src/shared/PrecompiledHeader.h

@@ -0,0 +1,43 @@
+// Copyright (c) 2016 Ryan Prichard
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+
+#ifndef WINPTY_PRECOMPILED_HEADER_H
+#define WINPTY_PRECOMPILED_HEADER_H
+
+#include <windows.h>
+#include <aclapi.h>
+#include <sddl.h>
+#include <wincrypt.h>
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include <array>
+#include <memory>
+#include <new>
+#include <string>
+#include <utility>
+#include <vector>
+
+#endif // WINPTY_PRECOMPILED_HEADER_H