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42 lines
1.5 KiB
42 lines
1.5 KiB
From 1f68002cb725c6a8fb5ca8425c1c86495a053f4f Mon Sep 17 00:00:00 2001
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From: Michal Gorny <mgorny@gentoo.org>
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Date: Thu, 4 Apr 2019 14:21:38 +0000
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Subject: [PATCH] [llvm] [cmake] Add additional headers only if they exist
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Modify the add_header_files_for_glob() function to only add files
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that do exist, rather than all matches of the glob. This fixes CMake
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error when one of the include directories (which happen to include
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/usr/include) contain broken symlinks.
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Differential Revision: https://reviews.llvm.org/D59632
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llvm-svn: 357701
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---
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llvm/cmake/modules/LLVMProcessSources.cmake | 10 +++++++++-
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1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/cmake/modules/LLVMProcessSources.cmake b/cmake/modules/LLVMProcessSources.cmake
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index 7cbd2863500..d0be0e8b3ba 100644
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--- a/src/llvm-project/llvm/cmake/modules/LLVMProcessSources.cmake
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+++ b/src/llvm-project/llvm/cmake/modules/LLVMProcessSources.cmake
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@@ -30,7 +30,15 @@ endmacro(add_td_sources)
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function(add_header_files_for_glob hdrs_out glob)
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file(GLOB hds ${glob})
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- set(${hdrs_out} ${hds} PARENT_SCOPE)
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+ set(filtered)
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+ foreach(file ${hds})
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+ # Explicit existence check is necessary to filter dangling symlinks
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+ # out. See https://bugs.gentoo.org/674662.
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+ if(EXISTS ${file})
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+ list(APPEND filtered ${file})
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+ endif()
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+ endforeach()
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+ set(${hdrs_out} ${filtered} PARENT_SCOPE)
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endfunction(add_header_files_for_glob)
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function(find_all_header_files hdrs_out additional_headerdirs)
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--
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2.21.0
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