On 01/22/2010 02:35 AM, Eric Blake wrote:
It would be even slicker to do this without having to recompile (that is,
rewrite AC_LANG_FUNC_LINK_TRY to use the new logic, rather than making
AC_CHECK_FUNC call AC_LINK_IFELSE twice).
Since typeof(__builtin_strfry) gives an error, you'd then have two
Hi,
There is no news that AC_CHECK_FUNC fails to find built-in functions when
either AC_LANG_WERROR is used or -Werror is included in CFLAGS:
$ cat configure.ac
AC_INIT
AC_LANG_WERROR
AC_CHECK_FUNC(memset)
$ autoconf && ./configure
checking for gcc... gcc
checking whether the C compiler works..
