Extra linking libraries in configure test of armadillo may throw warning

[larrysh]

The ​changeset 25303 in response to ticket #4923 adds a ${LIBS} on to the end of every compile test command.

As part of finding libs in configure, it appears that sometimes 'lib64' is added to search paths in ${LIBS}, even if it does not exist. This, and any other non-existent lib directories, causes the test compile to throw a warning, e.g.:

ld: warning: directory not found for option '-L/usr/local/libdap/3.12.1/lib64'

which, in turn, causes the armadillo compile test to fail, even though the compiling succeeds.

Is the extra ${LIBS} necessary? Doesn't seem like any other libs are necessary for the test compile to succeed.

[Even Rouault]

trunk r27316 "configure: remove dollar{LIBS} in Armadillo detection test (#5455)"

[Even Rouault]

Milestone renamed