From c44bc2d32f81d11b4c0e46c932ba42e673b50a49 Mon Sep 17 00:00:00 2001 From: Chandler Carruth Date: Tue, 8 Nov 2011 17:19:47 +0000 Subject: [PATCH] Add a default system include of '/include'. This isn't particularly useful when using Clang as a system-compiler, but its harmless. When using Clang as a cross-compiler, this can be very handy as quite a few toolchains ship their libc headers here rather than under '/usr/include'. For reference, this is the beginning of my work to also make the Clang driver more suitable as a cross-compiler. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144089 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Driver/ToolChains.cpp | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp index d787ee08e8..c3861efd16 100644 --- a/lib/Driver/ToolChains.cpp +++ b/lib/Driver/ToolChains.cpp @@ -1987,6 +1987,11 @@ void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs, if (getTriple().getOS() == llvm::Triple::RTEMS) return; + // Add an include of '/include' directly. This isn't provided by default by + // system GCCs, but is often used with cross-compiling GCCs, and harmless to + // add even when Clang is acting as-if it were a system compiler. + addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/include"); + addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include"); } -- 2.40.0