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-rw-r--r--clang/test/Driver/linux-header-search.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/clang/test/Driver/linux-header-search.cpp b/clang/test/Driver/linux-header-search.cpp
index 5f6ac504a03..491bb4d0e27 100644
--- a/clang/test/Driver/linux-header-search.cpp
+++ b/clang/test/Driver/linux-header-search.cpp
@@ -301,6 +301,15 @@
// CHECK-GENTOO-4-9-3: "-internal-externc-isystem" "[[SYSROOT]]/include"
// CHECK-GENTOO-4-9-3: "-internal-externc-isystem" "[[SYSROOT]]/usr/include"
//
+// Test support for Gentoo's gcc-config -- clang should prefer the older
+// (4.9.3) version over the newer (5.4.0) due to preference specified
+// in /etc/env.d/gcc/x86_64-pc-linux-gnu.
+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
+// RUN: -target x86_64-unknown-linux-gnu -stdlib=libstdc++ \
+// RUN: --sysroot=%S/Inputs/gentoo_linux_gcc_multi_version_tree \
+// RUN: --gcc-toolchain="" \
+// RUN: | FileCheck --check-prefix=CHECK-GENTOO-4-9-3 %s
+//
// Check header search on Debian 6 / MIPS64
// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
// RUN: -target mips64-unknown-linux-gnuabi64 -stdlib=libstdc++ \
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