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hrd_hpux wrote:I already had "configure --without-threads" so that's out. My libpthread.a doesn't seem to have pthread_create in it. A mystery as to what HP did.
Did the --without-threads work at all? I've been debugging build problem with it for a while now. More precisely, Migick++ still tried to use pthreads when --without-threads was given, but as other parts of the build had threas disabled, that failed.
I found out that despite --without-threads MAGICKCORE_HAVE_PTHREAD gets defined. That in turn is because configure check for threads, while conditional to --without-threads in configure.ac, are also made unconditionally from opencl configure checks (m4/ax_opencl.m4).
Within version 6.8.7-1 the --without-threads option on configure does not work.
If I use:
./configure --enable-shared --disable-static --disable-openmp --without-threads --disable-installed --with-frozenpaths --with-perl-options=PREFIX=/cm/shared/apps/ngs_prd/1.1 --without-x
The make stops with the following error:
magick/.libs/libMagickCore-6.Q16.so: undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
make[2]: *** [utilities/animate] Error 1
make[2]: Leaving directory `/cm/shared/apps/ngs_prd/1.1/src/ImageMagick-6.8.7-1'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/cm/shared/apps/ngs_prd/1.1/src/ImageMagick-6.8.7-1'
make: *** [all] Error 2
When the --without-threads options is left out, it builds without a problem... But I like to have an installation wihtout the use of threads, as the number of cpus used needs to be regulated tightly with the number of isntances executed...
Change MAGICKCORE_HAVE_PTHREADS to MAGICKCORE_THREAD_SUPPORT in magick/distribute_cache.c. We'll get that patch into ImageMagick 6.8.7-2 Beta by sometime tomorrow. Thanks.
