make/autoconf/toolchain.m4

rev 59610 : imported patch cpp14_build

*** 48,60 ****
  TOOLCHAIN_DESCRIPTION_gcc="GNU Compiler Collection"
  TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
  TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
  
  # Minimum supported versions, empty means unspecified
! TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
  TOOLCHAIN_MINIMUM_VERSION_gcc="5.0"
! TOOLCHAIN_MINIMUM_VERSION_microsoft="16.00.30319.01" # VS2010
  TOOLCHAIN_MINIMUM_VERSION_xlc=""
  
  # Minimum supported linker versions, empty means unspecified
  TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.18"
  
--- 48,60 ----
  TOOLCHAIN_DESCRIPTION_gcc="GNU Compiler Collection"
  TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
  TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
  
  # Minimum supported versions, empty means unspecified
! TOOLCHAIN_MINIMUM_VERSION_clang="3.5"
  TOOLCHAIN_MINIMUM_VERSION_gcc="5.0"
! TOOLCHAIN_MINIMUM_VERSION_microsoft="19.10.0.0" # VS2017
  TOOLCHAIN_MINIMUM_VERSION_xlc=""
  
  # Minimum supported linker versions, empty means unspecified
  TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.18"