Make Gentoo GNU GCC Config override whitespace tolerant

The config-*triple* file handling isn't tolerant of
leading/trailing whitespace, making it not terribly
obvious when a single extraneous tab/space/etc will
cause the override to be ignored. This patch simply
trims the lines to ensure that it is tolerant of
whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300328 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
index 595285e087fe3f9619f4fa2d8bc5a3ea2cafbc97..549e24cbd2b32cc246c969862cf9d2f33cc81c35 100644 (file)
--- a/lib/Driver/ToolChains/Gnu.cpp
+++ b/lib/Driver/ToolChains/Gnu.cpp
@@ -2173,6 +2173,7 @@ bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
     SmallVector<StringRef, 2> Lines;
     File.get()->getBuffer().split(Lines, "\n");
     for (StringRef Line : Lines) {
+      Line = Line.trim();
       // CURRENT=triple-version
       if (Line.consume_front("CURRENT=")) {
         const std::pair<StringRef, StringRef> ActiveVersion =