configure.ac: Test for libgd once, not per HID which uses it.
commit8bf5ea87c67959c8857775cda302d8893c91a7c2
authorPeter Clifton <peter@clifton-electronics.co.uk>
Thu, 3 Jan 2013 04:04:36 +0000 (3 04:04 +0000)
committerPeter Clifton <peter@clifton-electronics.co.uk>
Thu, 3 Jan 2013 04:04:36 +0000 (3 04:04 +0000)
tree11a95c9592045318cd25a0fa4631ccbb0ea056fc
parentc7514b9638d89ae2eebdcf714df6715c735e6b57
configure.ac: Test for libgd once, not per HID which uses it.

This avoids some repeated tests, so should help to speed up the configure
process a little. This commit also enforces testing for the required PNG
support in libgd if the gcode or nelma HIDs are selected.
configure.ac