News#

gm2 release numbers: are now superceded by gcc branch numbers as gm2 is tracking the gcc release model.
accuracy of error messages: has been improved and offending subexpressions are now highlighted.
new type checker: has been implemented which will check all data types, including recursive procedure parameter types.
libraries: 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.
libpth: has been removed from gm2 and the coroutines are now implemented using the gcc portable threading library.
libulm: the Ulm libraries have been removed from the gm2 tree as they were not GPL3.
Talk given at The GNU Tools Cauldron 2018: 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].
gm2 1.8.2: 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.
gm2 1.2.0: 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.
Talk given at The GNU Tools Cauldron 2016: 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].
gm2 1.1.6: was released on February 22nd 2016. gm2-1.1.6 grafts onto gcc-4.7.4.
gm2 1.1.5: 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.
gm2 1.1.3: 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.
gm2 1.1.1: 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).
gm2 1.1.0: was released on January 02 2015. gm2-1.1.0 passes all regression tests on Debian Wheezy (x86_64) and (i686).
gm2 1.0.9: Beta was released on September 23 2014, all regressions passed on x86_64 Debian Wheezy.
gm2 1.0.4: was released on September 30 2011. This is a bug fix release.
gm2 1.0: was released on December 11 2010.