Historical
ISO/IEC 1539-3:1999
Information technology - Programming languages - Fortran - Part 3: Conditional compilation
This part of ISO/IEC 1539 defines facilities for conditional compilation in Fortran. This part of ISO/IEC 1539 provides an auxiliary standard for the version of the Fortran language specified by ISO/IEC 1539-1 and informally know as Fortran 95.
International Organization for Standardization [iso]