The GNU Modula-2 front end to GCC

are now superceded by gcc branch numbers as gm2 is tracking the gcc release model.

has been improved and offending subexpressions are now highlighted.

has been implemented which will check all data types, including recursive procedure parameter types.

the gm2 driver program has been enhanced to allow third party libraries to be installed alongside gm2 libraries. For example if the user specifies library foo using -flibs=foo the driver will check the standard GCC install directory for a subdirectory foo.

has been removed from gm2 and the coroutines are now implemented using the gcc portable threading library.

the Ulm libraries have been removed from the gm2 tree as they were not GPL3.

here is a talk on GNU Modula-2 given at The GNU Tools Cauldron, Manchester on 8th September 2018. The title is, ``GNU Modula-2 update, catching semantic errors post code optimisation and improved debugging'' [slides and video].

was released on Aug 30th 2018. gm2-1.8.2 grafts onto gcc-8.2.0 and contains integer overflow detection for addition, subtraction, negation and multiplication. It also detects and traps when a floating point nan occurs. This is the first release with the new semantic checking plugin which checks whether any exception will occur post optimization (see -fsoft-check-all). The compiler also works well with the automake tools.

was released on May 11th 2017. gm2-1.2.0 grafts onto gcc-5.2.0 and supports much better line number accuracy in debugging output. Source to code relationship can be further improved by the new option -fm2-g. -fm2-whole-program also provides whole program optimization.

here is a talk on GNU Modula-2 given at The GNU Tools Cauldron, Hebden Bridge on 9th September 2016. The title is, ``GNU Modula-2 status, whole program optimisation and language interoperability'' [slides and video].

was released on February 22nd 2016. gm2-1.1.6 grafts onto gcc-4.7.4.

was released on September 3 2015, passes all regression tests and has many bug fixes applied. Arrays and Records can be assigned to and from WORD, LOC, BYTE providing sizes permit. Also a small number of fixes to the library module MemStream.mod. Fixed a number of bugs shown by valgrind.

was released on April 15 2015. gm2-1.1.3 passes all regression tests on Debian Wheezy (x86_64) and (i686). Also passes all regression tests under Debian Jessie (x86_64). It also builds on armv7l Ubuntu Trusty Tahr.

was released on January 26 2015. gm2-1.1.1 passes all regression tests on Debian Wheezy (x86_64) and (i686). Also passes all regression tests under Debian Jessie (x86_64).

was released on January 02 2015. gm2-1.1.0 passes all regression tests on Debian Wheezy (x86_64) and (i686).

Beta was released on September 23 2014, all regressions passed on x86_64 Debian Wheezy.

was released on September 30 2011. This is a bug fix release.

was released on December 11 2010.