Fix build at 10.x and up (hardcoded -lstdc++):
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libtool: link: c++ -shared -nostdlib /usr/lib/crti.o /usr/lib/crtbeginS.o .libs/wmf.o -Wl,-rpath -Wl,/usr/local/lib -Wl,-rpath -Wl,/usr/local/lib -L/usr/local/lib /usr/local/lib/libEMF.so -lstdc++ -lpng -lz -L/usr/lib -lc++ -lm -lc -lgcc -lgcc_s /usr/lib/crtendS.o /usr/lib/crtn.o -Wl,-soname -Wl,libwmf_filter.so -o .libs/libwmf_filter.so
/usr/bin/ld: cannot find -lstdc++
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PR: ports/184138
Submitted by: bsam (me)
Approved by: gnome (maintainer timeout, 2 weeks)