[libcvd-members] Lapack configure.in issue

[Simon Taylor]

When updating CVD, configure didn't correctly work out that on my box 
-lgfortran is required for lapack.

I "fixed" it for me by moving the CHECK_FOR_LIBRARY with APPEND(LIBS, 
-lgfortran) to the top of the lapack checks in configure.in. I think 
what's going wrong is that all of the lapack checks have the identical 
AC_CHECK_LIB(lapack, dgesvd_, [], [a=1]) line, the result of which seems 
to get cached after the first time it's encountered.

I don't speak autoconf/bash very well, so thought I'd leave it for 
someone more qualified to look at...

Simon