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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 | common extensions like {{codeline|END DO}}. Currently, we want ensure that | ||
it is possible to compile all sources with the gfortran compiler, without | |||
possible. This usually means that non-legacy compilers also accept the | special flags if possible. This usually means that non-legacy compilers | ||
sources. | also accept the sources. | ||
=== M4 guide === | === M4 guide === |