GNU make has no builtin rules that know how to compile a file with a
".f90" extension. It has builtin rules to compile files that end in
".f" and ".F".
If you want it to build your .f90 file, you'll have to define a rule
that tells make how to do that.
All the builtin rules that make knows about are listed in the GNU make
manual, section "Catalog of Implicit Rules".
--
-------------------------------------------------------------------------------
Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at:
http://www.gnu.org http://www.paulandlesley.org/gmake/
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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