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Use C++20

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This commit is contained in:
Andrzej Rybczak
2024-08-21 17:58:55 +02:00
parent 603735d80e
commit ba484cff1e
12 changed files with 27 additions and 50 deletions
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10
configure.ac
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@@ -70,15 +70,15 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]])],
)
CXXFLAGS="$old_CXXFLAGS $fast_math"
# -std=c++14
AC_MSG_CHECKING([whether compiler supports -std=c++14])
# -std=c++20
AC_MSG_CHECKING([whether compiler supports -std=c++20])
old_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="-std=c++14"
CXXFLAGS="-std=c++20"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]])],
AC_MSG_RESULT([yes])
std_cpp14="-std=c++14",
std_cpp14="-std=c++20",
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support C++14, please upgrade (GCC >= 5)]])
AC_MSG_ERROR([[Your compiler doesn't seem to support C++20, please upgrade]])
)
CXXFLAGS="$old_CXXFLAGS $std_cpp14"