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CMake: use GNU extensions only when needed (backport #3121) #3123

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Jan 14, 2025
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4 changes: 3 additions & 1 deletion cmake/compilerFlags.cmake
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,9 @@ include(CheckCXXCompilerFlag)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS ON)
if (CYGWIN) # Cygwin and MSYS
set(CMAKE_CXX_EXTENSIONS ON)
endif()

if ( MINGW OR UNIX OR MSYS ) # MINGW, Linux, APPLE, CYGWIN
if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
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