Changes

17 bytes added ,  11:32, 23 August 2021
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If you modify a Fortran file, you should stay within Fortran 77 with
 
If you modify a Fortran file, you should stay within Fortran 77 with
common extensions like {{codeline|END DO}}.  Currently, we want all sources to
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common extensions like {{codeline|END DO}}.  Currently, we want ensure that
be compilable with the f2c and g77 compilers, without special flags if
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it is possible to compile all sources with the gfortran compiler, without
possible.  This usually means that non-legacy compilers also accept the
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special flags if possible.  This usually means that non-legacy compilers
sources.
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also accept the sources.
    
=== M4 guide ===
 
=== M4 guide ===