[Bug libgomp/39399] New: libgomp testsuite failures due to lack of linkind with libpthread

[kargl at gcc dot gnu dot org]

Running /usr/home/kargl/gcc/gcc4x/libgomp/testsuite/libgomp.fortran/fortran.exp
...
FAIL: libgomp.fortran/condinc2.f  -O  (test for excess errors)
WARNING: libgomp.fortran/condinc2.f  -O  compilation failed to produce
executable
FAIL: libgomp.fortran/condinc4.f90  -O  (test for excess errors)
WARNING: libgomp.fortran/condinc4.f90  -O  compilation failed to produce
executable
FAIL: libgomp.fortran/omp_cond2.f  -O  (test for excess errors)
WARNING: libgomp.fortran/omp_cond2.f  -O  compilation failed to produce
executable
FAIL: libgomp.fortran/omp_cond4.F90  -O  (test for excess errors)
WARNING: libgomp.fortran/omp_cond4.F90  -O  compilation failed to produce
executable

                === libgomp Summary ===

# of expected passes            1637
# of unexpected failures        4
# of unsupported tests          2

% more testsuite/libgomp.log

The failures are all of the following form (where PREFIX=${HOME}/gcc).

Executing on host:
 ${PREFIX}/obj/gcc/xgcc -B${PREFIX}/obj/gcc/
 ${PREFIX}/gcc4x/libgomp/testsuite/libgomp.fortran/condinc2.f
 -B${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/
 -I${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp
 -I${PREFIX}/gcc4x/libgomp/testsuite/.. -march=i486 -fmessage-length=0
 -fopenmp -O -fno-openmp
 -B${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/../libgfortran/.libs
 -L${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/.libs -lgomp
 -L${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/../libgfortran/.libs
 -lgfortranbegin -lgfortran -lm
 -o ./condinc2.exe  (timeout = 300)

${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/.libs/libgomp.so:
  undefined reference to `pthread_create'
collect2: ld returned 1 exit status
compiler exited with status 1
output is:
${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/.libs/libgomp.so:
  undefined reference to `pthread_create'
collect2: ld returned 1 exit status

FAIL: libgomp.fortran/condinc2.f  -O  (test for excess errors)
Excess errors:
${PREFIX}/obj/i386-unknown-freebsd8.0/./libgomp/.libs/libgomp.so:
 undefined reference to `pthread_create'

These tests are bogus.  On FreeBSD, -fopenmp will add the -pthread
option to the command line; whereas, -fno-openmp prevents the 
inclusion of -pthread.  Thus, "-fopenmp -O -fno-openmp" does not
properly add the required library, i.e., -lpthread.


-- 
           Summary: libgomp testsuite failures due to lack of linkind with
                    libpthread
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgomp
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kargl at gcc dot gnu dot org
GCC target triplet: i386-unknown-freebsd8.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39399