set(LYX_USE_STD_REGEX 0)
endif()
else()
- execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
+ execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpfullversion OUTPUT_VARIABLE GCC_VERSION ERROR_VARIABLE _error RESULT_VARIABLE _err OUTPUT_STRIP_TRAILING_WHITESPACE)
+ #message(STATUS "dumpfullversion: error = ${_error}, result = ${_err}")
+ if (_err)
+ # previous check failed, try again with _old_ parameter
+ execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION ERROR_VARIABLE _error RESULT_VARIABLE _err OUTPUT_STRIP_TRAILING_WHITESPACE)
+ #message(STATUS "dumpversion: error = ${_error}, result = ${_err}")
+ endif()
message(STATUS "Using GCC version ${GCC_VERSION}")
if(GCC_VERSION VERSION_LESS 4.9)
- if(GCC_VERSION VERSION_LESS 4.6)
- message(FATAL_ERROR "gcc >= 4.6 is required.")
- endif()
- # <regex> in gcc is unusable in versions less than 4.9.0
- # see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
- set(LYX_USE_STD_REGEX 0)
+ # Drop support for gcc versions prior to 4.9
+ message(FATAL_ERROR "gcc >= 4.9 is required.")
else()
set(LYX_USE_STD_REGEX 1)
endif()
set(LYX_GCC11_MODE "${CXX11_FLAG}")
else()
if(MSVC_VERSION LESS 1915)
+ # Drop support for msvc versions prior to 1915
+ message(FATAL_ERROR "msvc >= 1915 is required.")
set(LYX_USE_STD_REGEX 0)
else()
set(LYX_USE_STD_REGEX 1)