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On some architectures NAG F90 compiler requires -Qpath option to be predefined in F90FLAGS. configure script is not smart enough to figure out where NAG F90's libraries/executables reside (usually not in PATH). Besides, NAG F90 compiler is not supported.
If CFLAGS and F90FLAGS setup by ./configure script are incorrect one may fix them directly in Makefile/makeisdc1. For instance, some people want to have libraries compiled with debug option turned on ("-g"), and configure script does not always put "-g" option in CFLAGS/F90FLAGS. Please keep in mind that any subsequent run of configure script will overwrite any changes.

Bryan Irby 2004-10-05