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Fix configure; always look for std=c++17 rather than by distro.

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This backs out #606b35853b, which is believed no longer needed due to
(#3881) being fixed.

If this proves wrong and additional OS dependencies are needed, we should
use a feature test macro so that the OS test doesn't need upkeep.
This commit is contained in:
Wilson Snyder 2023-01-22 09:53:31 -05:00
parent 53835355b0
commit f4865a4bb2
1 changed files with 0 additions and 4 deletions
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4
configure.ac
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@ -354,12 +354,8 @@ AC_SUBST(CFG_CXXFLAGS_PROFILE)
# gnu is required for Cygwin to compile verilated.h successfully
#_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++20)
#_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++20)
case "$(which lsb_release 2>&1 > /dev/null && lsb_release -d)" in
*Alpine*Linux* | *Arch*Linux* | *Ubuntu*22.04*)
_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++17)
_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++17)
;;
esac
_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++14)
_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=c++14)
_MY_CXX_CHECK_SET(CFG_CXXFLAGS_STD_NEWEST,-std=gnu++11)