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fmt/test/CMakeLists.txt
Richard Musil 3b2fc033d1 Making CUDA test work with CMAKE_MSVC_RUNTIME_LIBRARY 
CMake 3.15 introduced a new way of handling MSVC CRT type definition for
the build: CMAKE_MSVC_RUNTIME_LIBRARY variable.
(https://cmake.org/cmake/help/latest/variable/CMAKE_MSVC_RUNTIME_LIBRARY.html)

This is supposed to be the way to go with MSVC CRT selection in new
projects. Using this method however breaks the current CMake script for
CUDA test. The reason is the CUDA test uses "FindCUDA" CMake module to
detect and set up CUDA support in CMake, which is deprecated since CMake
version 3.10, and which does not support CMAKE_MSVC_RUNTIME_LIBRARY
selector correctly (i.e. it does not propagate the compiler option
related to the CRT).

I did not find a way to "patch" in the correct compiler options, so
(while knowing this feature is only available from CMake 3.15 on) I
decided to change also the way CUDA is handled and instead of using
FindCUDA, used enable_language. Apart from having some nice additional
side-effects, it also fixed the problem with CRT selection.

However, the propagation of the compiler options (and in particular the
options related to C++ standard selection) is still a bit flaky on
Windows+MSVC platform, so it had to be done manually.

The patch makes two things in parallel:

1) Introduces MSVC_BUILD_STATIC, which, together with CMake version >=
3.15, allows building static version of the 'fmt' lib (and all the
tests).

2) At the same time, for CMake >= 3.15 it switches handling of CUDA
support from (old) FindCUDA to (new) enable_language, to fix the
problems which the old method has with the new CRT selector for MSVC in
a new CMake.

Added a check for CUDA before enabling it.

Using VERSION_LESS instead of VERSION_GREATER_EQUAL

Since apparently VERSION_GREATER_EQUAL exists only from CMake 3.7, while
Android is using CMake 3.6.

Removed MSVC_RUNTIME_LIBRARY logic from the CMake file.

The static build can be set on the command line with CMake >= 3.15
by defining the policy and the CMAKE_MSVC_RUNTIME_LIBARY this way:

cmake -G <gen> <options>
    -DCMAKE_POLICY_DEFAULT_CMP0091=NEW
    -DMSVC_BUILD_STATIC=ON
    -DCMAKE_MSVC_RUNTIME_LIBRARY="MultiThreaded$<$<CONFIG:Debug>:Debug>"

When MSVC_BUILD_DEBUG is set the test 'posix-mock-test' is skipped as it
does not build with the static runtime.
2019-09-25 06:46:11 -07:00

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#------------------------------------------------------------------------------
# Build the google test library
# We compile Google Test ourselves instead of using pre-compiled libraries.
# See the Google Test FAQ "Why is it not recommended to install a
# pre-compiled copy of Google Test (for example, into /usr/local)?"
# at http://code.google.com/p/googletest/wiki/FAQ for more details.
add_library(gmock STATIC
gmock-gtest-all.cc gmock/gmock.h gtest/gtest.h gtest/gtest-spi.h)
target_compile_definitions(gmock PUBLIC GTEST_HAS_STD_WSTRING=1)
target_include_directories(gmock SYSTEM PUBLIC . gmock gtest)
find_package(Threads)
if (Threads_FOUND)
target_link_libraries(gmock ${CMAKE_THREAD_LIBS_INIT})
else ()
target_compile_definitions(gmock PUBLIC GTEST_HAS_PTHREAD=0)
endif ()
if (NOT SUPPORTS_VARIADIC_TEMPLATES)
target_compile_definitions(gmock PUBLIC GTEST_LANG_CXX11=0)
endif ()
if (MSVC)
# Workaround a bug in implementation of variadic templates in MSVC11.
target_compile_definitions(gmock PUBLIC _VARIADIC_MAX=10)
# Disable MSVC warnings of _CRT_INSECURE_DEPRECATE functions.
target_compile_definitions(gmock PRIVATE _CRT_SECURE_NO_WARNINGS)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# Disable MSVC warnings of POSIX functions.
target_compile_options(gmock PUBLIC -Wno-deprecated-declarations)
endif ()
endif ()
# GTest doesn't detect <tuple> with clang.
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
target_compile_definitions(gmock PUBLIC GTEST_USE_OWN_TR1_TUPLE=1)
endif ()
# Silence MSVC tr1 deprecation warning in gmock.
target_compile_definitions(gmock
PUBLIC _SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1)
#------------------------------------------------------------------------------
# Build the actual library tests
set(TEST_MAIN_SRC test-main.cc gtest-extra.cc gtest-extra.h util.cc)
add_library(test-main STATIC ${TEST_MAIN_SRC})
target_compile_definitions(test-main PUBLIC
FMT_USE_FILE_DESCRIPTORS=$<BOOL:${HAVE_OPEN}>)
target_include_directories(test-main SYSTEM PUBLIC gtest gmock)
target_link_libraries(test-main gmock fmt)
include(CheckCXXCompilerFlag)
# Workaround GTest bug https://github.com/google/googletest/issues/705.
check_cxx_compiler_flag(
-fno-delete-null-pointer-checks HAVE_FNO_DELETE_NULL_POINTER_CHECKS)
if (HAVE_FNO_DELETE_NULL_POINTER_CHECKS)
target_compile_options(test-main PUBLIC -fno-delete-null-pointer-checks)
endif ()
# Use less strict pedantic flags for the tests because GMock doesn't compile
# cleanly with -pedantic and -std=c++98.
if (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
#set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -Wno-long-long -Wno-variadic-macros)
endif ()
function(add_fmt_executable name)
add_executable(${name} ${ARGN})
if (MINGW)
target_link_libraries(${name} -static-libgcc -static-libstdc++)
endif ()
endfunction()
# Adds a test.
# Usage: add_fmt_test(name srcs...)
function(add_fmt_test name)
add_fmt_executable(${name} ${name}.cc ${ARGN})
target_link_libraries(${name} test-main)
# Define if certain C++ features can be used.
if (FMT_PEDANTIC)
target_compile_options(${name} PRIVATE ${PEDANTIC_COMPILE_FLAGS})
endif ()
if (FMT_WERROR)
target_compile_options(${name} PRIVATE ${WERROR_FLAG})
endif ()
target_include_directories(${name} SYSTEM PUBLIC gtest gmock)
add_test(NAME ${name} COMMAND ${name})
endfunction()
add_fmt_test(assert-test)
add_fmt_test(chrono-test)
add_fmt_test(color-test)
add_fmt_test(core-test)
add_fmt_test(grisu-test)
target_compile_definitions(grisu-test PRIVATE FMT_USE_GRISU=1)
add_fmt_test(gtest-extra-test)
add_fmt_test(format-test mock-allocator.h)
if (MSVC)
target_compile_options(format-test PRIVATE /bigobj)
endif ()
if (NOT (MSVC AND BUILD_SHARED_LIBS))
add_fmt_test(format-impl-test)
endif ()
add_fmt_test(locale-test)
add_fmt_test(ostream-test)
add_fmt_test(compile-test)
add_fmt_test(printf-test)
add_fmt_test(custom-formatter-test)
add_fmt_test(ranges-test)
add_fmt_test(scan-test)
if (HAVE_OPEN AND NOT MSVC_BUILD_STATIC)
add_fmt_executable(posix-mock-test
posix-mock-test.cc ../src/format.cc ${TEST_MAIN_SRC})
target_include_directories(
posix-mock-test PRIVATE ${PROJECT_SOURCE_DIR}/include)
target_compile_definitions(posix-mock-test PRIVATE FMT_USE_FILE_DESCRIPTORS=1)
target_link_libraries(posix-mock-test gmock)
target_include_directories(posix-mock-test SYSTEM PUBLIC gtest gmock)
if (FMT_PEDANTIC)
target_compile_options(posix-mock-test PRIVATE ${PEDANTIC_COMPILE_FLAGS})
endif ()
if (HAVE_STRTOD_L)
target_compile_definitions(posix-mock-test PRIVATE FMT_LOCALE)
endif ()
add_test(NAME posix-mock-test COMMAND posix-mock-test)
add_fmt_test(posix-test)
endif ()
add_fmt_executable(header-only-test
header-only-test.cc header-only-test2.cc test-main.cc)
target_link_libraries(header-only-test gmock)
target_include_directories(header-only-test SYSTEM PUBLIC gtest gmock)
if (TARGET fmt-header-only)
target_link_libraries(header-only-test fmt-header-only)
else ()
target_include_directories(
header-only-test PRIVATE ${PROJECT_SOURCE_DIR}/include)
target_compile_definitions(header-only-test PRIVATE FMT_HEADER_ONLY=1)
endif ()
message(STATUS "FMT_PEDANTIC: ${FMT_PEDANTIC}")
if (FMT_PEDANTIC)
# MSVC fails to compile GMock when C++17 is enabled.
if (FMT_HAS_VARIANT AND NOT MSVC)
add_fmt_test(std-format-test)
set_property(TARGET std-format-test PROPERTY CXX_STANDARD 17)
endif ()
# Test that the library can be compiled with exceptions disabled.
# -fno-exception is broken in icc: https://github.com/fmtlib/fmt/issues/822.
if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
check_cxx_compiler_flag(-fno-exceptions HAVE_FNO_EXCEPTIONS_FLAG)
endif ()
if (HAVE_FNO_EXCEPTIONS_FLAG)
add_library(noexception-test ../src/format.cc)
target_include_directories(
noexception-test PRIVATE ${PROJECT_SOURCE_DIR}/include)
target_compile_options(noexception-test PRIVATE -fno-exceptions)
if (FMT_PEDANTIC)
target_compile_options(noexception-test PRIVATE ${PEDANTIC_COMPILE_FLAGS})
endif ()
endif ()
# Test that the library compiles without locale.
add_library(nolocale-test ../src/format.cc)
target_include_directories(
nolocale-test PRIVATE ${PROJECT_SOURCE_DIR}/include)
target_compile_definitions(
nolocale-test PRIVATE FMT_STATIC_THOUSANDS_SEPARATOR=1)
# Test that the library compiles without windows.h.
if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
add_library(no-windows-h-test ../src/format.cc)
target_include_directories(
no-windows-h-test PRIVATE ${PROJECT_SOURCE_DIR}/include)
target_compile_definitions(no-windows-h-test PRIVATE FMT_USE_WINDOWS_H=0)
if (FMT_PEDANTIC)
target_compile_options(no-windows-h-test PRIVATE ${PEDANTIC_COMPILE_FLAGS})
endif ()
target_include_directories(no-windows-h-test SYSTEM PUBLIC gtest gmock)
endif ()
add_test(compile-error-test ${CMAKE_CTEST_COMMAND}
--build-and-test
"${CMAKE_CURRENT_SOURCE_DIR}/compile-error-test"
"${CMAKE_CURRENT_BINARY_DIR}/compile-error-test"
--build-generator ${CMAKE_GENERATOR}
--build-makeprogram ${CMAKE_MAKE_PROGRAM}
--build-options
"-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
"-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}"
"-DCXX_STANDARD_FLAG=${CXX_STANDARD_FLAG}"
"-DPEDANTIC_COMPILE_FLAGS=${PEDANTIC_COMPILE_FLAGS}"
"-DSUPPORTS_USER_DEFINED_LITERALS=${SUPPORTS_USER_DEFINED_LITERALS}")
endif ()
# These tests are disabled on Windows because they take too long.
if (FMT_PEDANTIC AND NOT WIN32)
# Test if the targets are found from the build directory.
add_test(find-package-test ${CMAKE_CTEST_COMMAND}
-C ${CMAKE_BUILD_TYPE}
--build-and-test
"${CMAKE_CURRENT_SOURCE_DIR}/find-package-test"
"${CMAKE_CURRENT_BINARY_DIR}/find-package-test"
--build-generator ${CMAKE_GENERATOR}
--build-makeprogram ${CMAKE_MAKE_PROGRAM}
--build-options
"-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
"-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}"
"-DFMT_DIR=${PROJECT_BINARY_DIR}"
"-DPEDANTIC_COMPILE_FLAGS=${PEDANTIC_COMPILE_FLAGS}"
"-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}")
# Test if the targets are found when add_subdirectory is used.
add_test(add-subdirectory-test ${CMAKE_CTEST_COMMAND}
-C ${CMAKE_BUILD_TYPE}
--build-and-test
"${CMAKE_CURRENT_SOURCE_DIR}/add-subdirectory-test"
"${CMAKE_CURRENT_BINARY_DIR}/add-subdirectory-test"
--build-generator ${CMAKE_GENERATOR}
--build-makeprogram ${CMAKE_MAKE_PROGRAM}
--build-options
"-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
"-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}"
"-DPEDANTIC_COMPILE_FLAGS=${PEDANTIC_COMPILE_FLAGS}"
"-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}")
endif ()
# Activate optional CUDA tests if CUDA is found. For version selection, see
# https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#cpp14-language-features
if (${CMAKE_VERSION} VERSION_LESS 3.15)
find_package(CUDA 9.0)
else ()
include(CheckLanguage)
check_language(CUDA)
if (CMAKE_CUDA_COMPILER)
enable_language(CUDA OPTIONAL)
set(CUDA_FOUND TRUE)
endif ()
endif ()
if (CUDA_FOUND)
add_subdirectory(cuda-test)
add_test(NAME cuda-test COMMAND fmt-in-cuda-test)
endif ()
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