Add -isystem-prefix and -ino-system-prefix arguments, which can be used to
override whether headers are system headers by checking for prefixes of the
header name specified in the #include directive.
This allows warnings to be disabled for third-party code which is found in
specific subdirectories of include paths.
llvm-svn: 158418
diff --git a/clang/test/Frontend/Inputs/SystemHeaderPrefix/src/warn.h b/clang/test/Frontend/Inputs/SystemHeaderPrefix/src/warn.h
new file mode 100644
index 0000000..91e2591
--- /dev/null
+++ b/clang/test/Frontend/Inputs/SystemHeaderPrefix/src/warn.h
@@ -0,0 +1,2 @@
+#if SRC
+#endif