Fixed include flags for MSC

Author: samsinsane

src/tools/msc.lua

@@ -308,15 +308,15 @@
 		local result = {}
 		for _, dir in ipairs(dirs) do
 			dir = p.tools.getrelative(cfg.project, dir)
-			table.insert(result, '-I' ..  p.quoted(dir))
+			table.insert(result, '/I' ..  p.quoted(dir))
 		end
 
 		for _, dir in ipairs(extdirs or {}) do
 			dir = p.tools.getrelative(cfg.project, dir)
 			if isVersionGreaterOrEqualTo(cfg.toolset, "msc-v142") then
 				table.insert(result, '/external:I' ..  p.quoted(dir))
 			else
-				table.insert(result, '-I' ..  p.quoted(dir))
+				table.insert(result, '/I' ..  p.quoted(dir))
 			end
 		end
 
@@ -325,7 +325,7 @@
 			if isVersionGreaterOrEqualTo(cfg.toolset, "msc-v142") then
 				table.insert(result, '/external:I' ..  p.quoted(dir))
 			else
-				table.insert(result, '-I' ..  p.quoted(dir))
+				table.insert(result, '/I' ..  p.quoted(dir))
 			end
 		end
 

tests/tools/test_msc.lua

@@ -340,14 +340,14 @@
 	function suite.cflags_onExternalIncludeDirs()
 		externalincludedirs { "/usr/local/include" }
 		prepare()
-		test.contains("-I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs))
+		test.contains("/I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs))
 	end
 
 	function suite.cflags_onVs2008ExternalIncludeDirs()
 		p.action.set("vs2008")
 		externalincludedirs { "/usr/local/include" }
 		prepare()
-		test.contains("-I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs))
+		test.contains("/I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs))
 	end
 
 	function suite.cflags_onVs2022ExternalIncludeDirs()
@@ -365,14 +365,14 @@
 function suite.cflags_onIncludeDirsAfter()
 	includedirsafter { "/usr/local/include" }
 	prepare()
-	test.contains("-I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs, cfg.frameworkdirs, cfg.includedirsafter))
+	test.contains("/I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs, cfg.frameworkdirs, cfg.includedirsafter))
 end
 
 function suite.cflags_onVs2008IncludeDirsAfter()
 	p.action.set("vs2008")
 	includedirsafter { "/usr/local/include" }
 	prepare()
-	test.contains("-I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs, cfg.frameworkdirs, cfg.includedirsafter))
+	test.contains("/I/usr/local/include", msc.getincludedirs(cfg, cfg.includedirs, cfg.externalincludedirs, cfg.frameworkdirs, cfg.includedirsafter))
 end
 
 function suite.cflags_onVs2022IncludeDirsAfter()