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[unittests] Use object library if cmake supports it 

Differential Revision: https://reviews.llvm.org/D63544

llvm-svn: 363933
This commit is contained in:
Tatyana Krasnukha 2019-06-20 15:06:31 +00:00
parent 20fe9e5452
commit 36358cd3ed
1 changed files with 19 additions and 2 deletions
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21
lldb/unittests/tools/lldb-mi/utils/CMakeLists.txt
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@ -1,4 +1,10 @@
add_library(lldb-mi-utils OBJECT
# Create object library to avoid unnecessary linking. If CMake version
# doesn't support it, just create an ordinary library.
if(NOT (${CMAKE_VERSION} VERSION_LESS "3.5.0"))
set (LIBRARY_TYPE "OBJECT")
endif()
add_library(lldb-mi-utils ${LIBRARY_TYPE}
${LLDB_SOURCE_DIR}/tools/lldb-mi/MIUtilString.cpp
)
@ -9,5 +15,16 @@ add_lldb_unittest(LLDBMiUtilTests
Support
)
target_sources(LLDBMiUtilTests PRIVATE $<TARGET_OBJECTS:lldb-mi-utils>)
if((${CMAKE_VERSION} VERSION_LESS "3.5.0") OR
NOT (${CMAKE_VERSION} VERSION_LESS "3.12.0"))
# Link to either usual (cmake version < 3.5) or
# object (cmake version >= 3.12) library with lldm-mi sources.
target_link_libraries(LLDBMiUtilTests PRIVATE lldb-mi-utils)
else()
# Object libraries still cannot be on the right-hand side of
# `target_link_libraries` but `$<TARGET_OBJECTS:objlib>` expression is
# already supported in `target_sources`.
target_sources(LLDBMiUtilTests PRIVATE $<TARGET_OBJECTS:lldb-mi-utils>)
endif()
set_target_properties(lldb-mi-utils PROPERTIES FOLDER "lldb libraries")