User`s manual

Custom Building MEX-Files
1-23
mex uses the first occurrence of the options file it finds. If no options file is
found,
mex displays an error message. You can directly specify the name of the
options file using the
-f switch.
For specific information on the default settings for the MATLAB supported
compilers, you can examine the options file in
<matlab>/bin/mexopts.sh, or
you can invoke the
mex script in verbose mode (-v). Verbose mode will print the
exact compiler options, prelink commands (if appropriate), and linker options
used in the build process for each compiler. “Custom Building on UNIX” on
page 1-24 gives an overview of the high-level build process.
Default Options File on Windows
The default MEX options file is placed in your user profile directory after you
configure your system by running
mex -setup. The mex script searches for an
options file called
mexopts.bat in the following order:
•The current directory
•The
user profile directory. See the following section, “The User Profile
Directory”, for more information about this directory
•
<matlab>\bin\win32\mexopts
mex
uses the first occurrence of the options file it finds. If no options file is
found,
mex searches your machine for a supported C compiler and
automatically configures itself to use that compiler. Also, during the
configuration process, it copies the compiler’s default options file to the
user
profile
directory. If multiple compilers are found, you are prompted to select
one.
For specific information on the default settings for the MATLAB supported
compilers, you can examine the options file,
mexopts.bat, or you can invoke the
mex script in verbose mode (-v). Verbose mode will print the exact compiler
options, prelink commands, if appropriate, and linker options used in the build
process for each compiler. “Custom Building on Windows” on page 1-26 gives
an overview of the high-level build process.
The User Profile Directory
The Windows user profile directory is a directory that contains user-specific
information such as desktop appearance, recently used files, and
Start menu
items. The
mex and mbuild utilities store their respective options files,
mexopts.bat and compopts.bat, which are created during the –setup process,