MacOSX compatibility

- Implemented some syscall for MacOSX
- tested on : El Capitan 10.11 x86_64
- make self hosted test run on macosx
- modified run_test so it does not fail when parseh throws
  warnings (most of them are related to buildin types from
  gcc that arent defined in header files and unions)
- making -mmacosx-version-min and -mios-version-min works like
  gcc (command line paramers have precedence over enviroment variables)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/link.cpp b/src/link.cpp
index 6b3d3dce83..56a44c4612 100644
--- a/src/link.cpp
+++ b/src/link.cpp
@@ -643,6 +643,12 @@ static void construct_linker_job_darwin(LinkJob *lj) {
 
     lj->args.append((const char *)buf_ptr(&lj->out_file_o));
 
+    if (g->is_test_build) {
+        const char *test_runner_name = g->link_libc ? "test_runner_libc" : "test_runner_nolibc";
+        Buf *test_runner_o_path = build_o(g, test_runner_name);
+        lj->args.append(buf_ptr(test_runner_o_path));
+    }
+
     for (int i = 0; i < g->link_libs.length; i += 1) {
         Buf *link_lib = g->link_libs.at(i);
         Buf *arg = buf_sprintf("-l%s", buf_ptr(link_lib));