fort77 - Linux
Overview
fort77 is a Fortran 77 compiler for Linux systems. It enables developers to compile Fortran 77 source code into executable programs. Fortran 77 is a widely used language for scientific and engineering applications where high performance is crucial.
Syntax
fort77 [options] [source_files]
Options/Flags
- -c: Compile only, do not link.
- -g: Generate debugging information.
- -o <output_file>: Specify the output file name.
- -O <optimization_level>: Set optimization level (0-3).
- -Wall: Enable all warnings.
- -fno-output-dependencies: Disable file dependency checking.
- -include
: Include additional header search paths. - -L
: Specify additional library search paths.
Examples
Simple Compilation:
fort77 hello.f
Compilation with Debugging Information:
fort77 -g hello.f
Compilation with Optimization:
fort77 -O3 hello.f
Common Issues
Missing Libraries:
If the compilation fails with errors related to missing libraries, ensure that the necessary libraries are installed on the system.
Incorrect Header Paths:
If the compilation fails with errors related to missing headers, verify the additional header search paths (-include) specified in the command.
Integration
Combining with Linkers:
To link the compiled object files into an executable, use the linker command:
ld -o <output_file> <object_files>
Related Commands
- gcc: GNU C compiler
- gfortran: GNU Fortran compiler
- f2c: Converts Fortran 77 code to C