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Fix options for C++20 experimental module in CMake #3134

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Oct 12, 2022
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6 changes: 2 additions & 4 deletions CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -84,10 +84,8 @@ option(FMT_MODULE "Build a module instead of a traditional library." OFF)
option(FMT_SYSTEM_HEADERS "Expose headers with marking them as system." OFF)

set(FMT_CAN_MODULE OFF)
if (CMAKE_CXX_STANDARD GREATER 17 AND
# msvc 16.10-pre4
MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 19.29.30035)
set(FMT_CAN_MODULE OFF)
if (CMAKE_CXX_STANDARD GREATER 17 AND NOT MSVC)
set(FMT_CAN_MODULE ON)
endif ()
if (NOT FMT_CAN_MODULE)
set(FMT_MODULE OFF)
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2 changes: 1 addition & 1 deletion test/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ add_fmt_test(enforce-checks-test)
target_compile_definitions(enforce-checks-test PRIVATE
-DFMT_ENFORCE_COMPILE_STRING)

if (FMT_CAN_MODULE)
if (FMT_MODULE)
# The tests need {fmt} to be compiled as traditional library
# because of visibility of implementation details.
# If module support is present the module tests require a
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