The tests in BLACS TESTING provide a local definition of Cblacs_ functions with a void (literally empty) definition. This causes a build error with the C23 standard (gcc-15):
cd /build/scalapack-2.2.2/build-openmpi/BLACS/TESTING && /usr/bin/cc -DAdd_ -DBTCINTFACE -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /us
r/lib/x86_64-linux-gnu/fortran/gfortran-mod-16/openmpi -g -O2 -Wno-error=implicit-function-declaration -ffile-prefix-map=/build/scalapack-2.2.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werro
r=format-security -fcf-protection -Wall -pedantic -MD -MT BLACS/TESTING/CMakeFiles/xCbtest.dir/Cbt.c.o -MF CMakeFiles/xCbtest.dir/Cbt.c.o.d -o CMakeFiles/xCbtest.dir/Cbt.c.o -c /build/scalapack-2.2.2/BLACS/TESTI
NG/Cbt.c
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c: In function 'blacs_gridinit_':
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c:8:4: error: too many arguments to function 'Cblacs_gridinit'; expected 0, have 4
8 | Cblacs_gridinit(ConTxt, order, *nprow, *npcol);
| ^~~~~~~~~~~~~~~ ~~~~~~
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c:6:9: note: declared here
6 | void Cblacs_gridinit();
| ^~~~~~~~~~~~~~~
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c: In function 'blacs_setup_':
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c:14:4: error: too many arguments to function 'Cblacs_setup'; expected 0, have 2
14 | Cblacs_setup(mypnum, nprocs);
| ^~~~~~~~~~~~ ~~~~~~
/build/scalapack-2.2.2/BLACS/TESTING/Cbt.c:13:9: note: declared here
13 | void Cblacs_setup();
| ^~~~~~~~~~~~
...
The same kind of problem was raised already in #129 and a patch applied in #139
But that patch did not include BLACS and BLACS/TESTING. The problem remains there,
e.g.
The tests in BLACS TESTING provide a local definition of
Cblacs_functions with a void (literally empty) definition. This causes a build error with the C23 standard (gcc-15):The same kind of problem was raised already in #129 and a patch applied in #139
But that patch did not include BLACS and BLACS/TESTING. The problem remains there,
e.g.
scalapack/BLACS/TESTING/Cbt.c
Line 6 in 6423f17