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## Copyright (C) 2006-2018 Keith Goodman
##
## This file is part of Octave.
##
## Octave is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <https://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {} {} mkoctfile [-options] file @dots{}
## @deftypefnx {} {[@var{output}, @var{status}] =} mkoctfile (@dots{})
##
## The @code{mkoctfile} function compiles source code written in C, C++, or
## Fortran. Depending on the options used with @code{mkoctfile}, the
## compiled code can be called within Octave or can be used as a stand-alone
## application.
##
## @code{mkoctfile} can be called from the shell prompt or from the Octave
## prompt. Calling it from the Octave prompt simply delegates the call to
## the shell prompt. The output is stored in the @var{output} variable and
## the exit status in the @var{status} variable.
##
## @code{mkoctfile} accepts the following options, all of which are optional
## except for the filename of the code you wish to compile:
##
## @table @samp
## @item -I DIR
## Add the include directory DIR to compile commands.
##
## @item -D DEF
## Add the definition DEF to the compiler call.
##
## @item -l LIB
## Add the library LIB to the link command.
##
## @item -L DIR
## Add the library directory DIR to the link command.
##
## @item -M
## @itemx --depend
## Generate dependency files (.d) for C and C++ source files.
##
## @item -R DIR
## Add the run-time path to the link command.
##
## @item @nospell{-Wl,@dots{}}
## Pass options to the linker like @nospell{"-Wl,-rpath=@dots{}"}.
## The quotes are needed since commas are interpreted as command
## separators.
##
## @item -W@dots{}
## Pass options to the assembler like @nospell{"-Wa,OPTION"}.
##
## @item -c
## Compile but do not link.
##
## @item -g
## Enable debugging options for compilers.
##
## @item -o FILE
## @itemx --output FILE
## Output filename. Default extension is .oct (or .mex if @samp{--mex} is
## specified) unless linking a stand-alone executable.
##
## @item -p VAR
## @itemx --print VAR
## Print the configuration variable VAR@. Recognized variables are:
##
## @example
## ALL_CFLAGS INCFLAGS
## ALL_CXXFLAGS INCLUDEDIR
## ALL_FFLAGS LAPACK_LIBS
## ALL_LDFLAGS LD_CXX
## AR LDFLAGS
## BLAS_LIBS LD_STATIC_FLAG
## CC LFLAGS
## CFLAGS LIBDIR
## CPICFLAG LIBOCTAVE
## CPPFLAGS LIBOCTINTERP
## CXX LIBS
## CXXFLAGS OCTAVE_HOME
## CXXPICFLAG OCTAVE_LIBS
## DEPEND_EXTRA_SED_PATTERN OCTAVE_LINK_DEPS
## DEPEND_FLAGS OCTAVE_LINK_OPTS
## DL_LD OCTAVE_PREFIX
## DL_LDFLAGS OCTINCLUDEDIR
## F77 OCTLIBDIR
## F77_INTEGER8_FLAG OCT_LINK_DEPS
## FFLAGS OCT_LINK_OPTS
## FFTW3F_LDFLAGS RANLIB
## FFTW3F_LIBS RDYNAMIC_FLAG
## FFTW3_LDFLAGS READLINE_LIBS
## FFTW3_LIBS SED
## FFTW_LIBS SPECIAL_MATH_LIB
## FLIBS XTRA_CFLAGS
## FPICFLAG XTRA_CXXFLAGS
## @end example
##
## @item --link-stand-alone
## Link a stand-alone executable file.
##
## @item --mex
## Assume we are creating a MEX file. Set the default output extension to
## ".mex".
##
## @item -s
## @itemx --strip
## Strip the output file.
##
## @item -v
## @itemx --verbose
## Echo commands as they are executed.
##
## @item file
## The file to compile or link. Recognized file types are
##
## @example
## @group
## .c C source
## .cc C++ source
## .C C++ source
## .cpp 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
## @end group
## @end example
##
## @end table
## @end deftypefn
function [output, status] = mkoctfile (varargin)
bindir = __octave_config_info__ ("bindir");
ext = __octave_config_info__ ("EXEEXT");
shell_script = fullfile (bindir,
"mkoctfile");
if (! exist (shell_script, "file"))
__gripe_missing_component__ ("mkoctfile", "mkoctfile");
endif
cmd = ['"' shell_script '"'];
for i = 1:nargin
cmd = [cmd ' "' varargin{i} '"'];
endfor
[sys, out] = system (cmd);
if (nargout > 0)
[output, status] = deal (out, sys);
else
printf ("%s", out);
endif
if (sys != 0)
warning ("mkoctfile: building exited with failure status\n");
endif
endfunction
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