cpp2ffi: add COMPILER argument to location iterator

generator/cpp2ffi.lua

@@ -1290,7 +1290,7 @@ M.serializeTableF = function(t)
 	return M.serializeTable("defs",t).."\nreturn defs"
 end
 --iterates lines from a gcc/clang -E in a specific location
-local function location(file,locpathT,defines)
+local function location(file,locpathT,defines,COMPILER)
 	local define_re = "^#define%s+([^%s]+)%s+([^%s]+)$"
 	local number_re = "^-?[0-9]+u*$"
 	local hex_re = "0x[0-9a-fA-F]+u*$"
@@ -1300,6 +1300,7 @@ local function location(file,locpathT,defines)
     else --gcc, clang
         location_re = '^# (%d+) "([^"]*)"'
     end
+
     local path_reT = {}
     for i,locpath in ipairs(locpathT) do
         table.insert(path_reT,'^.*[\\/]('..locpath..')%.h$')
@@ -1325,6 +1326,7 @@ local function location(file,locpathT,defines)
             if #line==0 then --nothing on emptyline
             elseif not line:match("%S") then --nothing if only spaces
             elseif line:sub(1,1) == "#" then
+			--elseif line:match"^%s*#" then
                 -- Is this a location pragma?
                 local loc_num_t,location_match = line:match(location_re)
                 if location_match then