Revert "hack in my new variables for GCC"
Very sorry for the accidental commit of WIP code.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132745 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 5266f6a..ca613e3 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1334,27 +1334,31 @@
}
static std::string findGCCBaseLibDir(const std::string &GccTriple) {
- // Check for an explicit configure-time version of GCC.
- llvm::SmallString<32> GCCVersion(CLANG_GCC_VERSION);
- if (GCCVersion != "") {
- // Read the other variables if we have a specific GCC version requested at
- // configuration time. We provide defaults for them if missing though.
- llvm::SmallString<128> InstallRoot(CLANG_GCC_INSTALL_ROOT);
- if (InstallRoot == "") InstallRoot = "/usr";
- llvm::SmallString<32> GCCLibDir(CLANG_GCC_LIB_DIR);
- if (GCCLibDir == "") GCCLibDir = "/lib/gcc";
- llvm::SmallString<32> GCCArch(CLANG_GCC_ARCH);
- if (GCCArch == "") GCCArch = GccTriple;
-
- InstallRoot += GCCLibDir;
- InstallRoot += "/";
- InstallRoot += GCCArch;
- InstallRoot += "/";
- InstallRoot += GCCVersion;
- return InstallRoot.str();
+ // FIXME: Using CXX_INCLUDE_ROOT is here is a bit of a hack, but
+ // avoids adding yet another option to configure/cmake.
+ // It would probably be cleaner to break it in two variables
+ // CXX_GCC_ROOT with just /foo/bar
+ // CXX_GCC_VER with 4.5.2
+ // Then we would have
+ // CXX_INCLUDE_ROOT = CXX_GCC_ROOT/include/c++/CXX_GCC_VER
+ // and this function would return
+ // CXX_GCC_ROOT/lib/gcc/CXX_INCLUDE_ARCH/CXX_GCC_VER
+ llvm::SmallString<128> CxxIncludeRoot(CXX_INCLUDE_ROOT);
+ if (CxxIncludeRoot != "") {
+ // This is of the form /foo/bar/include/c++/4.5.2/
+ if (CxxIncludeRoot.back() == '/')
+ llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the /
+ llvm::StringRef Version = llvm::sys::path::filename(CxxIncludeRoot);
+ llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the version
+ llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the c++
+ llvm::sys::path::remove_filename(CxxIncludeRoot); // remove the include
+ std::string ret(CxxIncludeRoot.c_str());
+ ret.append("/lib/gcc/");
+ ret.append(CXX_INCLUDE_ARCH);
+ ret.append("/");
+ ret.append(Version);
+ return ret;
}
-
- // Otherwise, attempt to detect a system GCC installation.
static const char* GccVersions[] = {"4.6.0", "4.6",
"4.5.2", "4.5.1", "4.5",
"4.4.5", "4.4.4", "4.4.3", "4.4",