Fixes the header search logic for tools:
The driver needs to get the correct path to the executable to deduce
the header search path.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155542 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Tooling/clang-check-builtin-headers.cpp b/test/Tooling/clang-check-builtin-headers.cpp
new file mode 100644
index 0000000..307b934
--- /dev/null
+++ b/test/Tooling/clang-check-builtin-headers.cpp
@@ -0,0 +1,16 @@
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// Add a path that doesn't exist as argv[0] for the compile command line:
+// RUN: echo '[{"directory":".","command":"/random/tool -c %t/test.cpp","file":"%t/test.cpp"}]' > %t/compile_commands.json
+// RUN: cp "%s" "%t/test.cpp"
+// RUN: clang-check "%t" "%t/test.cpp" 2>&1|FileCheck %s
+// FIXME: Make the above easier.
+
+#include <stddef.h>
+
+// CHECK: C++ requires
+invalid;
+
+// FIXME: JSON doesn't like path separator '\', on Win32 hosts.
+// FIXME: clang-check doesn't like gcc driver on cygming.
+// XFAIL: cygwin,mingw32,win32