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test compiler for c++17 support

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This commit is contained in:
Stefan Siegl 2022-06-24 21:27:33 +02:00
parent 0754d73775
commit 225c8cde63
1 changed files with 6 additions and 2 deletions
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6
config.m4
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@ -39,11 +39,15 @@ if test "$PHP_V8JS" != "no"; then
AC_CACHE_CHECK(for C standard version, ac_cv_v8_cstd, [
ac_cv_v8_cstd="c++14"
ac_cv_v8_cstd="c++17"
old_CPPFLAGS=$CPPFLAGS
AC_LANG_PUSH([C++])
CPPFLAGS="-std="$ac_cv_v8_cstd
AC_RUN_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],[],[
ac_cv_v8_cstd="c++14"
CPPFLAGS="-std="$ac_cv_v8_cstd
AC_RUN_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],[],[ ac_cv_v8_cstd="c++1y" ],[])
],[])
AC_LANG_POP([C++])
CPPFLAGS=$old_CPPFLAGS
]);