Ada runtime of gcc trunk (r131371) does not have OpenBSD specific sections, so the pthreads library and related features are not used/enabled on OpenBSD.
Patch at http://iki.fi/tero.koskinen/gcc/gcc-ada-gnattools-tasking.diff adds files a-intnam-openbsd.ads, g-soccon-openbsd.ads, s-osinte-openbsd.adb, s-osinte-openbsd.ads and system-openbsd-x86.ads, and modifies the build system to use them on OpenBSD/x86. (gcc/ada/gsocket.h is also modified to avoid some build errors.) After the patch, configure option "--with-threads=gnat" enables tasking for OpenBSD on x86 platform. Mentioned *openbsd*.ad[bs] files are almost direct copies of FreeBSD equivalents. Only few magic numbers/constants are changed. The patch is tested on OpenBSD/x86 4.2-current. Earlier version of this patch (for gcc 4.2) was joint work with Markus Hennecke. (See http://marc.info/?l=openbsd-ports&m=117679065130354&w=2 for details.) -- Summary: Ada runtime improvements for OpenBSD to enable tasking and related features Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tero dot koskinen at iki dot fi http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34717
