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31 lines
1.3 KiB
Diff
31 lines
1.3 KiB
Diff
Index: llvm-toolchain-9-9~+rc3/clang/lib/Driver/ToolChains/Linux.cpp
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===================================================================
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--- llvm-toolchain-9-9~+rc3.orig/clang/lib/Driver/ToolChains/Linux.cpp
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+++ llvm-toolchain-9-9~+rc3/clang/lib/Driver/ToolChains/Linux.cpp
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@@ -12,6 +12,7 @@
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#include "Arch/PPC.h"
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#include "Arch/RISCV.h"
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#include "CommonArgs.h"
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+#include "clang/Basic/Version.h"
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#include "clang/Config/config.h"
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#include "clang/Driver/Distro.h"
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#include "clang/Driver/Driver.h"
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@@ -665,7 +666,16 @@ void Linux::AddClangSystemIncludeArgs(co
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if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
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SmallString<128> P(D.ResourceDir);
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llvm::sys::path::append(P, "include");
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- addSystemInclude(DriverArgs, CC1Args, P);
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+ if (llvm::sys::fs::exists(P)) {
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+ /* Include the build include directory only
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+ * Otherwise, it fails with stage2 when clang headers are available on the system
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+ * they usually fail because of the include_next. Two llvm/clang headers are found
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+ * while we are waiting for the lib C++ (std or not)
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+ */
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+ addSystemInclude(DriverArgs, CC1Args, P);
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+ } else {
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+ addSystemInclude(DriverArgs, CC1Args, "/usr/include/clang/" + std::string(CLANG_VERSION_STRING) + "/include/");
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+ }
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}
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if (DriverArgs.hasArg(options::OPT_nostdlibinc))
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