lld/0001-CMake-Fix-pthread-handling-for-out-of-tree-builds.patch

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2017-04-13 19:34:21 +00:00
From 548cd5eb4f45de4ec71b3421a98c9462aed75c91 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Fri, 10 Feb 2017 01:59:20 +0000
Subject: [PATCH] [CMake] Fix pthread handling for out-of-tree builds
LLVM defines `PTHREAD_LIB` which is used by AddLLVM.cmake and various projects
to correctly link the threading library when needed. Unfortunately
`PTHREAD_LIB` is defined by LLVM's `config-ix.cmake` file which isn't installed
and therefore can't be used when configuring out-of-tree builds. This causes
such builds to fail since `pthread` isn't being correctly linked.
This patch attempts to fix that problem by renaming and exporting
`LLVM_PTHREAD_LIB` as part of`LLVMConfig.cmake`. I renamed `PTHREAD_LIB`
because It seemed likely to cause collisions with downstream users of
`LLVMConfig.cmake`.
git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@294690 91177308-0d34-0410-b5e6-96231b3b80d8
---
COFF/CMakeLists.txt | 2 +-
ELF/CMakeLists.txt | 2 +-
lib/ReaderWriter/MachO/CMakeLists.txt | 2 +-
unittests/CoreTests/CMakeLists.txt | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/COFF/CMakeLists.txt b/COFF/CMakeLists.txt
index 0eebe93..8f24e36 100644
--- a/COFF/CMakeLists.txt
+++ b/COFF/CMakeLists.txt
@@ -43,7 +43,7 @@ add_lld_library(lldCOFF
LINK_LIBS
lldCore
- ${PTHREAD_LIB}
+ ${LLVM_PTHREAD_LIB}
DEPENDS
COFFOptionsTableGen
diff --git a/ELF/CMakeLists.txt b/ELF/CMakeLists.txt
index 5652b93..0d1e5b2 100644
--- a/ELF/CMakeLists.txt
+++ b/ELF/CMakeLists.txt
@@ -54,7 +54,7 @@ add_lld_library(lldELF
LINK_LIBS
lldConfig
lldCore
- ${PTHREAD_LIB}
+ ${LLVM_PTHREAD_LIB}
DEPENDS
ELFOptionsTableGen
diff --git a/lib/ReaderWriter/MachO/CMakeLists.txt b/lib/ReaderWriter/MachO/CMakeLists.txt
index 3b06985..5a96d87 100644
--- a/lib/ReaderWriter/MachO/CMakeLists.txt
+++ b/lib/ReaderWriter/MachO/CMakeLists.txt
@@ -28,7 +28,7 @@ add_lld_library(lldMachO
LINK_LIBS
lldCore
lldYAML
- ${PTHREAD_LIB}
+ ${LLVM_PTHREAD_LIB}
)
include_directories(.)
diff --git a/unittests/CoreTests/CMakeLists.txt b/unittests/CoreTests/CMakeLists.txt
index 98405d5..72e7c44 100644
--- a/unittests/CoreTests/CMakeLists.txt
+++ b/unittests/CoreTests/CMakeLists.txt
@@ -3,5 +3,5 @@ add_lld_unittest(CoreTests
)
target_link_libraries(CoreTests
- ${PTHREAD_LIB}
+ ${LLVM_PTHREAD_LIB}
)
--
1.8.3.1