Re: [PATCH v3 08/11] xfsprogs: Add fls check into autoconf

Christoph Hellwig
2015-08-04T11:21:05Z

Can't you just use something like:

AC_CHECK_DECL([fls],
[AC_DEFINE([HAVE_FLS_PROTOTYPE], [1],
[Define to 1 if have fls prototype])],
[],