diff options
| -rw-r--r-- | test/unit/preprocess.lua | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/unit/preprocess.lua b/test/unit/preprocess.lua index 1c9b290462..4d819e5f23 100644 --- a/test/unit/preprocess.lua +++ b/test/unit/preprocess.lua @@ -185,6 +185,30 @@ local function repeated_call(...) return nil end +function Gcc:filter_standard_defines(defines) + if not self.standard_defines then + local pseudoheader_fname = 'tmp_empty_pseudoheader.h' + local pseudoheader_file = io.open(pseudoheader_fname, 'w') + pseudoheader_file:close() + local standard_defines = repeated_call(self.path, + self.preprocessor_extra_flags, + self.get_defines_extra_flags, + {pseudoheader_fname}) + os.remove(pseudoheader_fname) + self.standard_defines = {} + for line in standard_defines:gmatch('[^\n]+') do + self.standard_defines[line] = true + end + end + local ret = {} + for line in defines:gmatch('[^\n]+') do + if not self.standard_defines[line] then + ret[#ret + 1] = line + end + end + return table.concat(ret, "\n") +end + -- returns a stream representing a preprocessed form of the passed-in headers. -- Don't forget to close the stream by calling the close() method on it. function Gcc:preprocess(previous_defines, ...) @@ -201,6 +225,7 @@ function Gcc:preprocess(previous_defines, ...) local defines = repeated_call(self.path, self.preprocessor_extra_flags, self.get_defines_extra_flags, {pseudoheader_fname}) + defines = self:filter_standard_defines(defines) -- lfs = require("lfs") -- print("CWD: #{lfs.currentdir!}") |