On Wed, Jun 24, 2020 at 06:03:26PM +0200, Tobias Burnus wrote:
> On 6/24/20 5:26 PM, Jakub Jelinek via Gcc-patches wrote:
>
> > Just build the whole gcc tree.
> > If you are at the toplevel of gcc tree (i.e. directory that contains libgomp
> > subdirectory), do
> > mkdir obj
> > cd obj
> > ../configure --disable-bootstrap --enable-languages=c,c++,fortran
> > make -j16 # or how many cores or threads you have
>
> To save some additional time, use: --disable-multilib --disable-pch
>
> (But this matters more if you keep building all of GCC and not only
> libgomp. pch = pre-compiled header files.)
>
> See also https://gcc.gnu.org/install/configure.html and for completeness:
> https://gcc.gnu.org/install/prerequisites.html
> https://gcc.gnu.org/install/build.html
--disable-multilib perhaps just initially, for the OMPD project you'll want
later to test how a 64-bit GDB loads the libgompd.so.1 library and
communicates with 32-bit libgomp.so.1 too.
And, you don't really need to build it from scratch each time you update,
for the libgomp development you just do make, or
./config.status --recheck; ./config.status
make
in the libgomp build directory, and
make check RUNTESTFLAGS=ompd.exp
to test.
Jakub
