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Add isysroot support, patch by Keith Bauer 

llvm-svn: 41455
This commit is contained in:
Chris Lattner 2007-08-26 17:47:35 +00:00
parent 0c6aad373f
commit dd9a319158
1 changed files with 11 additions and 2 deletions
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13
clang/Driver/clang.cpp
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@ -456,7 +456,7 @@ static void InitializePredefinedMacros(Preprocessor &PP,
// object takes a very simple interface: a list of directories to search for
//
// FIXME: -nostdinc,-nostdinc++
// FIXME: -isysroot,-imultilib
// FIXME: -imultilib
//
// FIXME: -include,-imacros
@ -492,6 +492,10 @@ iwithprefixbefore_vals("iwithprefixbefore", llvm::cl::value_desc("dir"),
llvm::cl::Prefix,
llvm::cl::desc("Set directory to include search path with prefix"));
static llvm::cl::opt<std::string>
isysroot("isysroot", llvm::cl::value_desc("dir"), llvm::cl::init("/"),
llvm::cl::desc("Set the system root directory (usually /)"));
// Finally, implement the code that groks the options above.
enum IncludeDirGroup {
Quoted = 0,
@ -507,7 +511,12 @@ static std::vector<DirectoryLookup> IncludeGroup[4];
static void AddPath(const std::string &Path, IncludeDirGroup Group,
bool isCXXAware, bool isUserSupplied,
bool isFramework, FileManager &FM) {
const DirectoryEntry *DE = FM.getDirectory(Path);
const DirectoryEntry *DE;
if (Group == System)
DE = FM.getDirectory(isysroot + "/" + Path);
else
DE = FM.getDirectory(Path);
if (DE == 0) {
if (Verbose)
fprintf(stderr, "ignoring nonexistent directory \"%s\"\n",