6052a8a535
This patch removes duplicates also encountered in the output of clang-scan-deps when one same header file is encountered with different casing and/or different separators ('/' vs '\').
The case of separators can appear when the same file is included externally by
`#include <folder/file.h>`
whereas a file from the same folder does
`#include "file.h"`
Under Windows, clang computes the paths using '/' from the include directive, the `\` from the -I options, and the concatenations use the native `\`, leading to internal paths containing a mix of both separators.
Differential Revision: https://reviews.llvm.org/D102339
28 lines
838 B
C
28 lines
838 B
C
// REQUIRES: system-windows
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// RUN: rm -rf %t.dir
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// RUN: mkdir -p %t.dir/subdir
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// RUN: echo > %t.dir/subdir/x.h
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// RUN: cp %s %t.dir/test.c
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// RUN: cd %t.dir
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// RUN: %clang -MD -MF - %t.dir/test.c -fsyntax-only -I %t.dir/subdir | FileCheck %s
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// CHECK: test.o:
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// CHECK-NEXT: \test.c
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// CHECK-NEXT: \SubDir\X.h
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// File x.h must appear only once (case insensitive check).
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// CHECK-NOT: {{\\|/}}{{x|X}}.{{h|H}}
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// Include x.h several times, with different casing and separators.
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// Since all paths are passed to clang as absolute, all dependencies are absolute paths.
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// We expect the output dependencies to contain only one line for file x.h
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// Test case sensitivity.
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#include "SubDir/X.h"
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#include "subdir/x.h"
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// Test separator sensitivity:
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// clang internally concatenates x.h using the Windows native separator.
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#include <x.h>
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