build: require autoconf 2.69
authorStefano Lattarini <stefano.lattarini@gmail.com>
Wed, 25 Apr 2012 22:04:35 +0000 (00:04 +0200)
committerStefano Lattarini <stefano.lattarini@gmail.com>
Wed, 25 Apr 2012 22:04:35 +0000 (00:04 +0200)
commit444618b3264dbc1efec2b02f2f3ab6d5e6fb77fe
tree11c3de4042aac4fc80ba1efb4a5786a27131ec61
parentba5b98ffd2bd6abdb260cf4842ad9902e2ee1132
build: require autoconf 2.69

It is only from version 2.69 that the 'AC_PROG_FC' macro has started to
set the '$GFC' variable to "yes" if the selected Fortran compiler is a
GNU compiler.  Since we use this variable in our configure.ac, we better
require autoconf 2.69 explicitly.

* configure.ac (AC_PRERQ): Require autoconf >= 2.69.
Remove a now-obsolete "FIXME" comment.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
configure.ac