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Cmake build:Amend 44bbd0b0 and 22f59925

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44bbd0b0: Get full version of gcc
22f59925: Remove support for gcc 4.6

Also Remove support for msvc without STD_REGEX

(cherry picked from commit 6f2cd26103)
This commit is contained in:
Kornel Benko 2019-06-13 09:18:40 +02:00
parent f0f48232f0
commit 46e29ebe54
1 changed files with 11 additions and 7 deletions
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18
CMakeLists.txt
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@ -280,21 +280,25 @@ if(UNIX OR MINGW)
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 ${GCC_VERSION}")
if(GCC_VERSION VERSION_LESS 4.9)
if(GCC_VERSION VERSION_LESS 4.6)
message(FATAL_ERROR "gcc >= 4.6 is required.")
endif()
# <regex> in gcc is unusable in versions less than 4.9.0
# see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
set(LYX_USE_STD_REGEX 0)
# Drop support for gcc versions prior to 4.9
message(FATAL_ERROR "gcc >= 4.9 is required.")
else()
set(LYX_USE_STD_REGEX 1)
endif()
endif()
set(LYX_GCC11_MODE "${CXX11_FLAG}")
else()
# Drop support for msvc versions prior to 1915
message(FATAL_ERROR "msvc >= 1915 is required.")
set(LYX_USE_STD_REGEX 0)
# if(MSVC10)
# set(LYX_USE_STD_REGEX 1) #TODO should we use it in ECMAScript mode?