kea/m4macros/ax_cpp17.m4

AC_DEFUN([AX_ISC_CPP17], [
    AC_MSG_CHECKING([c++17 support])

    # Save flags.
    CPPFLAGS_SAVED="${CPPFLAGS}"

    # Provide -std=c++17 flag temporarily.
    CPPFLAGS="${CPPFLAGS} -std=c++17"

    # Check that the filesystem library is supported.
    AC_LINK_IFELSE(
      [AC_LANG_PROGRAM(
        [#include <filesystem>],
        [std::filesystem::path cwd = std::filesystem::current_path();]
      )],
      [AC_MSG_RESULT([yes])
       CPP17_SUPPORTED=true],
      [AC_MSG_RESULT([no])
       CPP17_SUPPORTED=false])

    # Restore flags.
    CPPFLAGS="${CPPFLAGS_SAVED}"
])
[#3605] Prepare existing code for fuzzing - Separate ENABLE_AFL into ENABLE_FUZZING and HAVE_AFL. - Add the --disable-unicode flag required in the oss-fuzz container. - Add checking of support for C++17. - Make Kea compile with afl++. - Rotate ports in `getServerPort()` functions under an env var. - Fix some destruction issues that would result in crashes when fuzzing. - Add some checks in the UnixControlClient that prevent some crashes when fuzzing. - Add `isc::util::isSocket()` function. - Change `isc::util::file::Path` to not append a trailing slash to allow chained calls of `parentPath()`. - Add `isc::util::file::TemporaryDirectory` useful when fuzzing. 2024-10-14 10:05:31 +03:00			`AC_DEFUN([AX_ISC_CPP17], [`
			`AC_MSG_CHECKING([c++17 support])`

			`# Save flags.`
			`CPPFLAGS_SAVED="${CPPFLAGS}"`

			`# Provide -std=c++17 flag temporarily.`
			`CPPFLAGS="${CPPFLAGS} -std=c++17"`

			`# Check that the filesystem library is supported.`
			`AC_LINK_IFELSE(`
			`[AC_LANG_PROGRAM(`
			`[#include <filesystem>],`
			`[std::filesystem::path cwd = std::filesystem::current_path();]`
			`)],`
			`[AC_MSG_RESULT([yes])`
			`CPP17_SUPPORTED=true],`
			`[AC_MSG_RESULT([no])`
			`CPP17_SUPPORTED=false])`

			`# Restore flags.`
			`CPPFLAGS="${CPPFLAGS_SAVED}"`
			`])`