https://github.com/ecnelises created https://github.com/llvm/llvm-project/pull/213689
Fixes #133174 >From 20543a326459d005f00e23ca867fc5cac8f40202 Mon Sep 17 00:00:00 2001 From: Qiu Chaofan <[email protected]> Date: Mon, 3 Aug 2026 22:36:06 +0800 Subject: [PATCH] [clang] Fix include behavior for leading double slashes --- clang/lib/Lex/HeaderSearch.cpp | 2 +- clang/test/Preprocessor/include-leading-double-slash.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) create mode 100644 clang/test/Preprocessor/include-leading-double-slash.c diff --git a/clang/lib/Lex/HeaderSearch.cpp b/clang/lib/Lex/HeaderSearch.cpp index ecd80db10f2bd..eddec19405211 100644 --- a/clang/lib/Lex/HeaderSearch.cpp +++ b/clang/lib/Lex/HeaderSearch.cpp @@ -968,7 +968,7 @@ OptionalFileEntryRef HeaderSearch::LookupFile( *SuggestedModule = ModuleMap::KnownHeader(); // If 'Filename' is absolute, check to see if it exists and no searching. - if (llvm::sys::path::is_absolute(Filename)) { + if (llvm::sys::path::is_absolute_gnu(Filename)) { CurDir = nullptr; // If this was an #include_next "/absolute/file", fail. diff --git a/clang/test/Preprocessor/include-leading-double-slash.c b/clang/test/Preprocessor/include-leading-double-slash.c new file mode 100644 index 0000000000000..d1235ab1bc02c --- /dev/null +++ b/clang/test/Preprocessor/include-leading-double-slash.c @@ -0,0 +1,3 @@ +// RUN: %clang_cc1 %s -verify + +#include "//stddef.h" // expected-error {{'//stddef.h' file not found}} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
