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build: silence warnings in in-tree build

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Avoid the developer warnings from cmake when configuring libc++ as part of the
LLVM layout.  Setup the custom macro paths earlier to re-use the detection logic
prior to setting the project properties.

llvm-svn: 260071
This commit is contained in:
Saleem Abdulrasool 2016-02-08 03:50:18 +00:00
parent 4918702542
commit 163333f912
1 changed files with 17 additions and 14 deletions
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31
libcxx/CMakeLists.txt
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@ -12,13 +12,6 @@ if(POLICY CMP0022)
cmake_policy(SET CMP0022 NEW) # Required when interacting with LLVM and Clang
endif()
project(libcxx CXX C)
set(PACKAGE_NAME libcxx)
set(PACKAGE_VERSION trunk-svn)
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org")
# Add path for custom modules
set(CMAKE_MODULE_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
@ -26,15 +19,18 @@ set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}
)
# Require out of source build.
include(MacroEnsureOutOfSourceBuild)
MACRO_ENSURE_OUT_OF_SOURCE_BUILD(
"${PROJECT_NAME} requires an out of source build. Please create a separate
build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there."
)
# Find the LLVM sources and simulate LLVM CMake options.
include(HandleOutOfTreeLLVM)
if (LIBCXX_BUILT_STANDALONE)
project(libcxx CXX C)
set(PACKAGE_NAME libcxx)
set(PACKAGE_VERSION trunk-svn)
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org")
endif ()
if (LIBCXX_BUILT_STANDALONE AND NOT LLVM_FOUND)
message(WARNING "UNSUPPORTED LIBCXX CONFIGURATION DETECTED: "
"llvm-config not found and LLVM_PATH not defined.\n"
@ -42,6 +38,13 @@ if (LIBCXX_BUILT_STANDALONE AND NOT LLVM_FOUND)
"or -DLLVM_PATH=path/to/llvm-source-root.")
endif()
# Require out of source build.
include(MacroEnsureOutOfSourceBuild)
MACRO_ENSURE_OUT_OF_SOURCE_BUILD(
"${PROJECT_NAME} requires an out of source build. Please create a separate
build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there."
)
#===============================================================================
# Setup CMake Options
#===============================================================================