audio/ladspa ISSUE sed error

[awarecons]

===>  Applying FreeBSD patches for ladspa-1.13
/usr/bin/sed -i.bak -e 's,-ldl,,; s,-O3,-O2 -pipe -march=pentium4
-mtune=pentium4 -Wl,-rpath=/usr/local/lib/gcc46 -fno-strict-aliasing,;
 s,^CC,#CC,;s,^CPP,#CPP,;s,CPP,CXX,; s,^CXXFLAGS.*=,CXXFLAGS+=,'
/usr/ports/audio/ladspa/work/ladspa_sdk/src/makefile
sed: 1: "s,-ldl,,; s,-O3,-O2 -pi ...": bad flag in substitute command: '-'
*** Error code 1

Stop in /usr/ports/audio/ladspa.