https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85510
Bug ID: 85510
Summary: Linking error when accessing a coindexed variable
inside an associate block
Product: gcc
Version: 8.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: damian at sourceryinstitute dot org
Target Milestone: ---
The code below compiles without error with -fcoarray=single; whereas compiling
with -fcoarray=lib generates the link-time error message shown with the
gfortran 7.2.0 and with the trunk dated 20180412. The gfortran command comes
from the output of the OpenCoarrays command 'caf --show'. Some of the paths
have been shortened manually for presentation purposes:
$ cat communicate-inside-associate.f90 module foo
contains
subroutine bar()
integer, save :: i[*]=0
associate(n=>1)
print*,i[1]
end associate
end subroutine
end module
use foo
end
$ gfortran -I/opt/opencoarrays/include/OpenCoarrays-2.0.0-26-g840374a_GNU-8.0.1
-fcoarray=lib -Wl,-rpath -Wl,/opt/mpich/3.2/lib -Wl,--enable-new-dtags
communicate-inside-associate.f90 /opt/opencoarrays/lib/libcaf_mpi.a
/opt/mpich/3.2/lib/libmpifort.so /opt/mpich/3.2/lib/libmpi.so
/tmp/ccA8dGYe.o: In function `_caf_init.1.3816':
communicate-inside-associate.f90:(.text+0x4d): undefined reference to
`caf_token.0.3815'
/tmp/ccA8dGYe.o: In function `__foo_MOD_bar':
communicate-inside-associate.f90:(.text+0x153): undefined reference to
`caf_token.0.3815'
collect2: error: ld returned 1 exit status
rouson@sourcery-VirtualBox:~/Desktop/Builds/adhoc/src/gnu/nrc/emulated-collectives$
gfortran --version
GNU Fortran (GCC) 8.0.1 20180412 (experimental)
