Patch 3337372: Improved precompiled header support (Anders Ericsson)

.hgignore

@@ -26,3 +26,7 @@ Makefile
 *.project
 *.tags
 
+*.bbprojectsettings
+Scratchpad.txt
+Unix Worksheet.worksheet
+project.bbprojectdata

CHANGES.txt

@@ -35,6 +35,7 @@
 * Patch 3367641: Remove warnings in Xcode 4
 * Patch 3372345: Gmake action's PCHs don't work with Mingw (Martin Ridgers)
 * Patch 3317329: Support vstudio CompileAs for mixed-language projects (xpol)
+* Patch 3337372: Improved precompiled header support (Anders Ericsson)
 
 
 -------

src/actions/make/make_cpp.lua

@@ -269,6 +269,18 @@
 --
 
 	function cpp.pchconfig(cfg)
+		-- GCC needs the full path to the PCH, while Visual Studio needs
+		-- only the name (or rather, the name as specified in the #include
+		-- statement). Try to locate the PCH in the project.
+		local pchheader = cfg.pchheader
+		for _, incdir in ipairs(cfg.includedirs) do
+			local testname = path.join(incdir, cfg.pchheader)
+			if os.isfile(testname) then
+				pchheader = testname
+				break
+			end
+		end
+
 		if not cfg.flags.NoPCH and cfg.pchheader then
 			_p('  PCH        = %s', _MAKE.esc(path.getrelative(cfg.location, cfg.pchheader)))
 			_p('  GCH        = $(OBJDIR)/%s.gch', _MAKE.esc(path.getname(cfg.pchheader))) 

src/actions/vstudio/vs2010_vcxproj.lua

@@ -154,7 +154,7 @@
 	local function precompiled_header(cfg)
       	if not cfg.flags.NoPCH and cfg.pchheader then
 			_p(3,'<PrecompiledHeader>Use</PrecompiledHeader>')
-			_p(3,'<PrecompiledHeaderFile>%s</PrecompiledHeaderFile>', path.getname(cfg.pchheader))
+			_p(3,'<PrecompiledHeaderFile>%s</PrecompiledHeaderFile>', cfg.pchheader)
 		else
 			_p(3,'<PrecompiledHeader></PrecompiledHeader>')
 		end