mkoctfile(1) General Commands Manual mkoctfile(1) NAME mkoctfile - Compile dynamic-load modules for GNU Octave SYNOPSIS mkoctfile [option]... FILE... DESCRIPTION mkoctfile is used to compile C, C++, or Fortran source code in to a dynamically loadable .oct file for OPTIONS -h, --help Print help message. -Idir Add include directory dir to compile command. -idirafter dir Add include directory to second include search path for compilation after '-I'. -Ddef Add definition def to compile command. -llib Add library lib to link command. -Ldir Add library directory dir to link command. -M, --depend Generate dependency files (.d) for C and C++ source files. -pthread Add -pthread to link command. -Rdir Pass -Rdir to link command. -Wl,option Pass option to the linker such as -Wl,-rpath=... -W... Pass flags to the compiler such as -Wa,option. -c, --compile Compile, but do not link. -o file, --output file Output filename. Default extension is ".oct" (or ".mex" if --mex is specified) unless linking a stand-alone executable. -g Enable debugging option for all compilers. -p VAR, --print VAR Print configuration variable VAR. There are three categories of variables: Octave configuration variables that users may override with environment variables. These are used in commands that mkoctfile executes. ALL_CFLAGS INCLUDEDIR ALL_CXXFLAGS LAPACK_LIBS ALL_FFLAGS LDFLAGS ALL_LDFLAGS LD_STATIC_FLAG BLAS_LIBS LFLAGS CC LIBDIR CFLAGS LIBOCTAVE CPICFLAG LIBOCTINTERP CPPFLAGS OCTAVE_LINK_OPTS CXX OCTINCLUDEDIR CXXFLAGS OCTAVE_LIBS CXXLD OCTAVE_LINK_DEPS CXXPICFLAG OCTLIBDIR DL_LDFLAGS OCT_LINK_DEPS F77 OCT_LINK_OPTS F77_INTEGER8_FLAG RDYNAMIC_FLAG FFLAGS SPECIAL_MATH_LIB FPICFLAG XTRA_CFLAGS INCFLAGS XTRA_CXXFLAGS Octave configuration variables as above, but currently unused by mkoctfile. AR DEPEND_EXTRA_SED_PATTERN DEPEND_FLAGS FFTW3F_LDFLAGS FFTW3F_LIBS FFTW3_LDFLAGS FFTW3_LIBS FFTW_LIBS FLIBS LIBS RANLIB READLINE_LIBS Octave configuration variables that are provided for informational purposes only. Except for OCTAVE_HOME and OCTAVE_EXEC_HOME, users may not override these variables. If OCTAVE_HOME or OCTAVE_EXEC_HOME are set in the environment, then other variables are adjusted accordingly with OCTAVE_HOME or OCTAVE_EXEC_HOME substituted for the original value of the directory specified by the --prefix or --exec-prefix options that were used when Octave was configured. API_VERSION LOCALARCHLIBDIR ARCHLIBDIR LOCALFCNFILEDIR BINDIR LOCALOCTFILEDIR CANONICAL_HOST_TYPE LOCALSTARTUPFILEDIR DATADIR LOCALVERARCHLIBDIR DATAROOTDIR LOCALVERFCNFILEDIR DEFAULT_PAGER LOCALVEROCTFILEDIR EXEEXT MAN1DIR FCNFILEDIR MAN1EXT IMAGEDIR MANDIR INCLUDEDIR OCTAVE_EXEC_HOME INFODIR OCTAVE_HOME INFOFILE OCTDATADIR LIBDIR OCTDOCDIR LIBEXECDIR OCTFILEDIR LOCALAPIARCHLIBDIR OCTFONTSDIR LOCALAPIFCNFILEDIR OCTINCLUDEDIR LOCALAPIOCTFILEDIR OCTLIBDIR LOCALAPIPKGDIR STARTUPFILEDIR VERSION --link-stand-alone Link a stand-alone executable file. --mex Create a MEX file. Set the default output extension to ".mex". Link to liboctmex instead of liboctinterp and liboctave. -s, --strip Strip output file. -n, --dry-run, --just-print Print commands, but do not execute them. -v, --verbose Echo commands as they are executed. FILE Compile or link FILE. Recognized file types are: .c C source .cc C++ source .cp C++ source .cpp C++ source .CPP C++ source .cxx C++ source .c++ C++ source .C C++ source .f Fortran source (fixed form) .F Fortran source (fixed form) .f90 Fortran source (free form) .F90 Fortran source (free form) .o object file .a library file AUTHOR John W. Eaton and many others. The list of contributors to the Octave project may be shown from within octave by executing "doc Acknowledgements". The list is also available online at . SEE ALSO GNU Octave April 2026 mkoctfile(1)