/usr/ports/deskutils/xchm# make install clean
===>  Building for xchm-1.13
make  all-recursive
Making all in m4
Making all in po
Making all in src
c++  -O2 -fno-strict-aliasing -pipe -I/usr/local/include/wx-2.6/gtk2-unicode-release-2.6 -I/usr/local/include/wx-2.6 -DGTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DNO_GCC_PRAGMA -W -Wall  -L/usr/local/lib -pthread  -o xchm  chmapp.o chmfile.o  chmframe.o chmfshandler.o  chminputstream.o chmfontdialog.o  chmsearchpanel.o chmhtmlwindow.o  chmfinddialog.o chmindexpanel.o  chmlistctrl.o spantag.o hhcparser.o -L/usr/local/lib  -pthread -L/usr/local/lib -liconv  -L/usr/local/lib   -lwx_gtk2u_xrc-2.6 -lwx_gtk2u_qa-2.6 -lwx_gtk2u_html-2.6 -lwx_gtk2u_adv-2.6 -lwx_gtk2u_core-2.6 -lwx_baseu_xml-2.6 -lwx_baseu_net-2.6 -lwx_baseu-2.6 -lchm
/usr/bin/ld: warning: libm.so.4, needed by /usr/local/lib/libwx_gtk2u_xrc-2.6.so, may conflict with libm.so.5
/usr/bin/ld: warning: libstdc++.so.5, needed by /usr/local/lib/libwx_gtk2u_xrc-2.6.so, may conflict with libstdc++.so.6
/lib/libpthread.so.2: undefined reference to `__malloc_lock'
*** Error code 1

Stop in /usr/ports/deskutils/xchm/work/xchm-1.13/src.
*** Error code 1

Stop in /usr/ports/deskutils/xchm/work/xchm-1.13.
*** Error code 1

Stop in /usr/ports/deskutils/xchm/work/xchm-1.13.
*** Error code 1

Stop in /usr/ports/deskutils/xchm.