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dnl FTGL_CPP_FUNC()
dnl Check for __func__ or __FUNCTION__ and set __FUNC__ accordingly
dnl
AC_DEFUN([FTGL_CPP_FUNC], [dnl
AC_REQUIRE([AC_PROG_CC_STDC])
AC_CACHE_CHECK([for __func__], ac_cv_cpp_func,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[char *function = __func__;]])],
[ac_cv_cpp_func=yes],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[[char *function = __FUNCTION__;]])],
[ac_cv_cpp_func=__FUNCTION__],
[ac_cv_cpp_func=no]
)]
)]
)
if test $ac_cv_cpp_func = yes; then
AC_DEFINE(__FUNC__, __func__, [Define to __FUNCTION__ or "" if __func__ is not available.])
elif test $ac_cv_cpp_func = __FUNCTION__; then
AC_DEFINE(__FUNC__, __FUNCTION__, [Define to __FUNCTION__ or "" if __func__ is not available.])
elif test $ac_cv_cpp_func = no; then
AC_DEFINE(__FUNC__, "", [Define to __FUNCTION__ or "" if __func__ is not available.])
fi
])
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