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test for no-double-promotion instead of just checking compiler version

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This commit is contained in:
Eli Fidler 2016-06-13 07:29:34 -07:00
parent 21acc56d57
commit 8c4059766e
1 changed files with 6 additions and 1 deletions
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5
test/unittest/CMakeLists.txt
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@ -1,3 +1,5 @@
include(CheckCXXCompilerFlag)
set(UNITTEST_SOURCES
allocatorstest.cpp
bigintegertest.cpp
@ -41,8 +43,11 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# If the user is running a newer version of Clang that includes the
# -Wdouble-promotion, we will ignore that warning.
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 3.7)
CHECK_CXX_COMPILER_FLAG("-Wno-double-promotion" HAS_NO_DOUBLE_PROMOTION)
if (HAS_NO_DOUBLE_PROMOTION)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-double-promotion")
endif()
endif()
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
# Force to always compile with /W4
if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")