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To develop COBOL programs using OpenCobol (OpenCOBOL) on the ZED environment on Gentoo, follow these structured steps:

To develop COBOL programs using OpenCobol (OpenCOBOL) on the ZED environment on Gentoo, follow these structured steps:

  • **Hardware/OS**: Ensure your Gentoo system has the ZED environment (a COBOL-compatible runtime) installed.
  • **Dependencies**: Install required libraries:
  sudo emerge -av ncurses zlib

  • **Portage Installation**:
  sudo emerge -av dev-lang/open-cobol
  • **Verify Installation**:
  cobc --version

  • **Set Environment Variables**:
  export COBPATH=/usr/share/cobol  # Path to copybooks
  export PATH=$PATH:/usr/bin       # Include OpenCobol binaries
  • **Create a Project Directory**:
  mkdir ~/cobol_project && cd ~/cobol_project

  • **Example Program (`hello.cob`)**:
  IDENTIFICATION DIVISION.
  PROGRAM-ID. HELLO.

  ENVIRONMENT DIVISION.
  CONFIGURATION SECTION.
  SOURCE-SYSTEM. Gentoo.

  DATA DIVISION.
  WORKING-STORAGE SECTION.

  PROCEDURE DIVISION.
      DISPLAY "Hello, OpenCobol on ZED!".
      STOP RUN.

  • **Compile with `cobc`**:
  cobc -x hello.cob  # Generates `hello` executable

  • **Link Against ZED Libraries**:
  cobc -l zed -o hello hello.cob
  • **Test Execution**:
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