Build with OpenMP does not add required flags, which leads to linking failure

[barracuda156]

Building with OpenMP enabled does not actually enable OpenMP, since -fopenmp is passed neither to the compiler nor to the linker. In result:

[ 96%] Building C object CMakeFiles/asl.dir/src/solvers/value.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers -pipe -Os -DNDEBUG -I/opt/local/include -arch ppc -m32 -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/value.c.o -MF CMakeFiles/asl.dir/src/solvers/value.c.o.d -o CMakeFiles/asl.dir/src/solvers/value.c.o -c /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers/value.c
[ 97%] Building C object CMakeFiles/asl.dir/src/solvers/writesol.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers -pipe -Os -DNDEBUG -I/opt/local/include -arch ppc -m32 -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/writesol.c.o -MF CMakeFiles/asl.dir/src/solvers/writesol.c.o.d -o CMakeFiles/asl.dir/src/solvers/writesol.c.o -c /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers/writesol.c
[ 97%] Building C object CMakeFiles/asl.dir/src/solvers/wrtsol_.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers -pipe -Os -DNDEBUG -I/opt/local/include -arch ppc -m32 -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/wrtsol_.c.o -MF CMakeFiles/asl.dir/src/solvers/wrtsol_.c.o.d -o CMakeFiles/asl.dir/src/solvers/wrtsol_.c.o -c /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers/wrtsol_.c
[ 97%] Linking C shared library bin/libasl-mt.dylib
/opt/local/bin/cmake -E cmake_link_script CMakeFiles/asl-mt.dir/link.txt --verbose=ON
/opt/local/bin/gcc-mp-14 -pipe -Os -DNDEBUG -I/opt/local/include -arch ppc -m32 -arch ppc -mmacosx-version-min=10.6 -dynamiclib -Wl,-headerpad_max_install_names -L/opt/local/lib -Wl,-headerpad_max_install_names -arch ppc -o bin/libasl-mt.dylib -install_name /opt/local/lib/libasl-mt.dylib "CMakeFiles/asl-mt.dir/include/details.c.o" "CMakeFiles/asl-mt.dir/src/solvers/asldate.c.o" "CMakeFiles/asl-mt.dir/src/solvers/atof.c.o" "CMakeFiles/asl-mt.dir/src/solvers/auxinfo.c.o" "CMakeFiles/asl-mt.dir/src/solvers/avltree.c.o" "CMakeFiles/asl-mt.dir/src/solvers/b_search.c.o" "CMakeFiles/asl-mt.dir/src/solvers/basename.c.o" "CMakeFiles/asl-mt.dir/src/solvers/bscanf.c.o" "CMakeFiles/asl-mt.dir/src/solvers/com2eval.c.o" "CMakeFiles/asl-mt.dir/src/solvers/comeval.c.o" "CMakeFiles/asl-mt.dir/src/solvers/con1ival.c.o" "CMakeFiles/asl-mt.dir/src/solvers/con2ival.c.o" "CMakeFiles/asl-mt.dir/src/solvers/con2val.c.o" "CMakeFiles/asl-mt.dir/src/solvers/conadj.c.o" "CMakeFiles/asl-mt.dir/src/solvers/conpval.c.o" "CMakeFiles/asl-mt.dir/src/solvers/conscale.c.o" "CMakeFiles/asl-mt.dir/src/solvers/conval.c.o" "CMakeFiles/asl-mt.dir/src/solvers/degree.c.o" "CMakeFiles/asl-mt.dir/src/solvers/derprop.c.o" "CMakeFiles/asl-mt.dir/src/solvers/dtoa1.c.o" "CMakeFiles/asl-mt.dir/src/solvers/duthes.c.o" "CMakeFiles/asl-mt.dir/src/solvers/dynlink.c.o" "CMakeFiles/asl-mt.dir/src/solvers/f_read.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fg_read.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fg_write.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fgh_read.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fpecatch.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fpinit.c.o" "CMakeFiles/asl-mt.dir/src/solvers/fullhes.c.o" "CMakeFiles/asl-mt.dir/src/solvers/func_add.c.o" "CMakeFiles/asl-mt.dir/src/solvers/funcadd1.c.o" "CMakeFiles/asl-mt.dir/src/solvers/g_fmt.c.o" "CMakeFiles/asl-mt.dir/src/solvers/genrowno.c.o" "CMakeFiles/asl-mt.dir/src/solvers/getenv.c.o" "CMakeFiles/asl-mt.dir/src/solvers/getstub.c.o" "CMakeFiles/asl-mt.dir/src/solvers/htcl.c.o" "CMakeFiles/asl-mt.dir/src/solvers/indic_cons.c.o" "CMakeFiles/asl-mt.dir/src/solvers/jac0dim.c.o" "CMakeFiles/asl-mt.dir/src/solvers/jac2dim.c.o" "CMakeFiles/asl-mt.dir/src/solvers/jacdim.c.o" "CMakeFiles/asl-mt.dir/src/solvers/jacinc.c.o" "CMakeFiles/asl-mt.dir/src/solvers/jacinc1.c.o" "CMakeFiles/asl-mt.dir/src/solvers/libnamsave.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mach.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mainexit.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mip_pri.c.o" "CMakeFiles/asl-mt.dir/src/solvers/misc.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mpec_adj.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mqpcheckv.c.o" "CMakeFiles/asl-mt.dir/src/solvers/mypow.c.o" "CMakeFiles/asl-mt.dir/src/solvers/names.c.o" "CMakeFiles/asl-mt.dir/src/solvers/nl_obj.c.o" "CMakeFiles/asl-mt.dir/src/solvers/nqpcheck.c.o" "CMakeFiles/asl-mt.dir/src/solvers/obj2val.c.o" "CMakeFiles/asl-mt.dir/src/solvers/obj_adj.c.o" "CMakeFiles/asl-mt.dir/src/solvers/obj_prec.c.o" "CMakeFiles/asl-mt.dir/src/solvers/objconst.c.o" "CMakeFiles/asl-mt.dir/src/solvers/objval.c.o" "CMakeFiles/asl-mt.dir/src/solvers/objval_.c.o" "CMakeFiles/asl-mt.dir/src/solvers/op_type.c.o" "CMakeFiles/asl-mt.dir/src/solvers/pfg_read.c.o" "CMakeFiles/asl-mt.dir/src/solvers/pfghread.c.o" "CMakeFiles/asl-mt.dir/src/solvers/printf.c.o" "CMakeFiles/asl-mt.dir/src/solvers/pshvprod.c.o" "CMakeFiles/asl-mt.dir/src/solvers/punknown.c.o" "CMakeFiles/asl-mt.dir/src/solvers/qp_read.c.o" "CMakeFiles/asl-mt.dir/src/solvers/qpcheck.c.o" "CMakeFiles/asl-mt.dir/src/solvers/qsortv.c.o" "CMakeFiles/asl-mt.dir/src/solvers/readsol.c.o" "CMakeFiles/asl-mt.dir/src/solvers/repwhere.c.o" "CMakeFiles/asl-mt.dir/src/solvers/rops.c.o" "CMakeFiles/asl-mt.dir/src/solvers/rops2.c.o" "CMakeFiles/asl-mt.dir/src/solvers/sigcatch.c.o" "CMakeFiles/asl-mt.dir/src/solvers/sos_add.c.o" "CMakeFiles/asl-mt.dir/src/solvers/sphes.c.o" "CMakeFiles/asl-mt.dir/src/solvers/sscanf.c.o" "CMakeFiles/asl-mt.dir/src/solvers/stderr.c.o" "CMakeFiles/asl-mt.dir/src/solvers/studchk0.c.o" "CMakeFiles/asl-mt.dir/src/solvers/suf_sos.c.o" "CMakeFiles/asl-mt.dir/src/solvers/value.c.o" "CMakeFiles/asl-mt.dir/src/solvers/writesol.c.o" "CMakeFiles/asl-mt.dir/src/solvers/wrtsol_.c.o" "CMakeFiles/asl-mt.dir/src/solvers/ws_desc.c.o" "CMakeFiles/asl-mt.dir/src/solvers/wsu_desc.c.o" "CMakeFiles/asl-mt.dir/src/solvers/x2check.c.o" "CMakeFiles/asl-mt.dir/src/solvers/xectim.c.o" "CMakeFiles/asl-mt.dir/src/solvers/xp1known.c.o" "CMakeFiles/asl-mt.dir/src/solvers/xp2known.c.o"  -Wl,-rpath,/opt/local/lib -lm
[ 97%] Building C object CMakeFiles/asl.dir/src/solvers/ws_desc.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers -pipe -Os -DNDEBUG -I/opt/local/include -arch ppc -m32 -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/ws_desc.c.o -MF CMakeFiles/asl.dir/src/solvers/ws_desc.c.o.d -o CMakeFiles/asl.dir/src/solvers/ws_desc.c.o -c /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_math_asl/asl/work/asl-2f5d9de248c53a3063bba23af2013cd3db768bf8/src/solvers/ws_desc.c
Undefined symbols:
  "_omp_init_lock", referenced from:
      _init_dtoa_locks in dtoa1.c.o
      _init_dtoa_locks in dtoa1.c.o
  "_omp_get_thread_num", referenced from:
      _get_TI in dtoa1.c.o
  "_omp_unset_lock", referenced from:
      _Bfree in dtoa1.c.o
      _FREE_DTOA_LOCK in dtoa1.c.o
      _Balloc in dtoa1.c.o
      _pow5mult in dtoa1.c.o
      _pow5mult in dtoa1.c.o
  "_omp_set_lock", referenced from:
      _Bfree in dtoa1.c.o
      _ACQUIRE_DTOA_LOCK in dtoa1.c.o
      _Balloc in dtoa1.c.o
      _pow5mult in dtoa1.c.o
      _pow5mult in dtoa1.c.o
ld: symbol(s) not found
collect2: error: ld returned 1 exit status

Passing -fopenmp manually fixes it, but normally this should not be required.