commit 4c2bcad7b843c10fd4a2ffd43da40bfefb4dc8ba
author Douglas Gregor <dgregor@apple.com> Wed Mar 24 20:13:48 2010 +0000
committer Douglas Gregor <dgregor@apple.com> Wed Mar 24 20:13:48 2010 +0000
tree befd22681ec96ef4c3bdbbed928c13571f1342da
parent f3c0bd58400b5a84d16376436e40af79e2d7b105

Implement support for -nostdc++. Fixes PR6446.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99417 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Driver/Tools.cpp

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 4133346..e5ee287 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -948,6 +948,7 @@
     CmdArgs.push_back("-g");
 
   Args.AddLastArg(CmdArgs, options::OPT_nostdinc);
+  Args.AddLastArg(CmdArgs, options::OPT_nostdincxx);
   Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc);
 
   // Pass the path to compiler resource files.
@@ -1706,6 +1707,7 @@
   if (!Args.hasArg(options::OPT_Q))
     CmdArgs.push_back("-quiet");
   Args.AddAllArgs(CmdArgs, options::OPT_nostdinc);
+  Args.AddAllArgs(CmdArgs, options::OPT_nostdincxx);
   Args.AddLastArg(CmdArgs, options::OPT_v);
   Args.AddAllArgs(CmdArgs, options::OPT_I_Group, options::OPT_F);
   Args.AddLastArg(CmdArgs, options::OPT_P);

lib/Frontend/CompilerInvocation.cpp

diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 6e18f34..dc2c6bf 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -436,6 +436,8 @@
   }
   if (!Opts.UseStandardIncludes)
     Res.push_back("-nostdinc");
+  if (!Opts.UseStandardCXXIncludes)
+    Res.push_back("-nostdinc++");
   if (Opts.Verbose)
     Res.push_back("-v");
 }
@@ -1014,6 +1016,7 @@
   Opts.Verbose = Args.hasArg(OPT_v);
   Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
   Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
+  Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
   Opts.ResourceDir = getLastArgValue(Args, OPT_resource_dir);
 
   // Add -I... and -F... options in order.

lib/Frontend/InitHeaderSearch.cpp

diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index cd749d2..9f5bced 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -82,7 +82,8 @@
   /// AddDefaultSystemIncludePaths - Adds the default system include paths so
   ///  that e.g. stdio.h is found.
   void AddDefaultSystemIncludePaths(const LangOptions &Lang,
-                                    const llvm::Triple &triple);
+                                    const llvm::Triple &triple,
+                                    bool UseStandardCXXIncludes);
 
   /// Realize - Merges all search path lists into one list and send it to
   /// HeaderSearch.
@@ -594,8 +595,9 @@
 }
 
 void InitHeaderSearch::AddDefaultSystemIncludePaths(const LangOptions &Lang,
-                                                    const llvm::Triple &triple) {
-  if (Lang.CPlusPlus)
+                                                    const llvm::Triple &triple,
+                                                  bool UseStandardCXXIncludes) {
+  if (Lang.CPlusPlus && UseStandardCXXIncludes)
     AddDefaultCPlusPlusIncludePaths(triple);
 
   AddDefaultCIncludePaths(triple);
@@ -765,7 +767,8 @@
   }
 
   if (HSOpts.UseStandardIncludes)
-    Init.AddDefaultSystemIncludePaths(Lang, Triple);
+    Init.AddDefaultSystemIncludePaths(Lang, Triple, 
+                                      HSOpts.UseStandardCXXIncludes);
 
   Init.Realize();
 }