gnumex Changelog

What's new in gnumex 2.04 Beta

Jul 1, 2011

Changed error when mex.pl file could not be written to into a warning. Added
description of workaround of what can be done in this case to readme file.

New in gnumex 2.03 (Jul 1, 2011)

New in gnumex 2.02 (Jul 1, 2011)

New in gnumex 2.01 (Jul 1, 2011)

New in gnumex 2.00 (Jul 1, 2011)

Support for Fortran 90/95 has been added (both g95 and gfortran). Two new
Fortran 95 example programs have been written, one in the file yprime95.f90
which copies the usual yprime example, and the other more comprehensive in the file powerit.f90.
The Gnumex main window has been redesigned for improved readability. The font is larger, colors agree with Windows standard and a help-button has been added. The size of the box with the options file name has been increased to be able to show the name of the default file in full.
Creation of a "stub" file fixup.c has been made optional. This file is
probably only needed by Windows 95.
With the -v switch mex now displays both the compile and the link commands
that are used. This can be useful for writing makefiles to do mexing.
Instead of offering compilation for different processors (pentium 1-4) there
is a choice of optimization level. This is more portable (new processors keep
being developed), and recent gcc versions offer a plethora of options which
is impossible to keep up with. However the options -O0, -O1, -O2 and -O3 are stable and -O3 includes most or all available speed-up options.
There is a new default value of "precompath", the location for the .def and
.lib files, in a subdirectory "gnumex" of Matlab's prefdir (for example:
C:\Documents and Settings\jonasson\Application Data\MathWorks\MATLAB\R2007a).
In version 1.13 the .def files were put in the directory were gnumex.m was
located, and the .lib files in the current directory. This would cause
multiple (identical) versions of the .lib files to be created (in each directory where Gnumex was run). An advantage of using Matlab's prefdir is that it is guaranteed to be writable, and it allows having multiple Matlab versions with Gnumex installed without conflicts.
The option of "safe" creation of libraries has been removed. The only reason
for this possibility seems to have been to allow new Matlab versions to be
installed without having to run Gnumex again, but the history of recent
Matlab versions shows this to be an unrealistic goal. With the lack of .def
of Matlab >= 7.4 there is no reason to carry out .lib from .def creation on
every run of mex (it would slow down mexing considerably with no benefit).
The files mex.def and fmex.def (files containing commands to the linker to
export mexFunction were previously constructed on the fly by linkmex.pl but
are now created with Gnumex.
The example programs have been moved to a separate directory, "examples" under the Gnumex install directory.
Corrected a bug in linkmex.pl. Linking would fail if the TEMP environment
variable contained spaces

New in gnumex 1.13 (Jul 1, 2011)

New in gnumex 1.12 (Jul 1, 2011)

The mex-files uigetpath and shortpath have been recompiled and the new
versions are compatible with, and called if, the Matlab version is >= 7.4.
Comments at the start of uigetpath.c and shortpath.c have been modified
(but otherwise these files are unchanged).
Gnumex now creates .def-files if needed. Starting with Matlab 7.4 there are
no libmex.def, libmx.def and libmat.def that come with Matlab. In earlier
Matlab versions these reside in \extern\include. The .def files
are written in the directory where gnumex.m is located.
The gcc option -mcpu=pentium has been deprecated (from gcc version 3.4.0
according to "Google"), and instead one Gnumex uses -march=pentium which is
also comptible with older gcc versions
The -mrtd flag has been removed for Fortran compilation (KJ had a nasty
crash with a Fortran program using large arrays and could not resolve it
until the -mrtd flag was dropped).
The mex file extension was changed from .dll to .mexw32 in Matlab version
7.1 and the new Gnumex honours this.
A bug was fixed on line 733 of version 1.11 gnumex.m. When directories were
nonexistent fp was used without being defined.
The switch -funroll-all-loops has been added to Fortran compilation.
A potential "year-2000" problem with mlv was fixed. The old definition
would fail if and when Matlab reaches version 10.
The switch -fleading-underscore was removed from Fortran compilation (it
is the default anyway, and just causes confusion with the switch
fno-underscoring, which is necessary)
Gnumex now locates both the Cygwin and Mingw folders (or does its best to
locate them), instead of setting the Mingw folder always to c:\Mingw.
Gnumex now defaults to using Mingw instead of Cygwin, unless it finds
Cygwin and not Mingw, for reasons explained in the README.TXT file.
A g77-compatible example mex Fortran program accompanies Gnumex 1.12. An
engine demo Fortran program is also included now.
A new README file has been written.
Changes were made to "gnumex test" (possibly all due to changes in Matlab
Mingw and Cygwin since it was written). On my machine it now runs with
everything OK (cygwin engine does not work and is not tested).