g77 needs a `-Wpromotions' option to warn if source code appears
to expect automatic, silent, and
somewhat dangerous compiler-assisted conversion of REAL(KIND=1)
constants to REAL(KIND=2) based on context.
For example, it would warn about cases like this:
DOUBLE PRECISION FOO PARAMETER (TZPHI = 9.435784839284958) FOO = TZPHI * 3D0
Go to the first, previous, next, last section, table of contents.