Public bug reported:
$ cat test.F
program main
include 'mpif.h'
integer ierr
call mpi_init(ierr)
end
$ mpif90 test.F -Wl,--as-needed -Wall -Wno-unused-variable -g
-I/usr/lib/openmpi/include -I/usr/lib/openmpi/lib -L/usr/lib/openmpi/lib
-L/usr/lib/gcc/i686-linux-gnu/4.5.2 -ldl -lmpi -lopen-rte -lopen-pal -lnsl
-lutil -lgcc_s -lpthread -ldl /usr/bin/ld:
/tmp/cccq3IWF.o(.debug_info+0x48d): unresolvable R_X86_64_64 relocation against
symbol `mpi_fortran_argv_null_'
/usr/bin/ld: /tmp/cccq3IWF.o(.debug_info+0x4a7): unresolvable R_X86_64_64
relocation against symbol `mpi_fortran_argv_null_'
/usr/bin/ld: /tmp/cccq3IWF.o(.debug_info+0x511): unresolvable R_X86_64_64
relocation against symbol `mpi_fortran_errcodes_ignore_'
/usr/bin/ld: /tmp/cccq3IWF.o(.debug_info+0x52b): unresolvable R_X86_64_64
relocation against symbol `mpi_fortran_errcodes_ignore_'
works with --no-as-needed.
** Affects: binutils (Ubuntu)
Importance: Undecided
Status: New
** Affects: openmpi (Ubuntu)
Importance: Undecided
Status: New
** Affects: openmpi (Debian)
Importance: Unknown
Status: Unknown
** Also affects: binutils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/697229
Title:
openmpi link failure with ld --as-needed
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