cc -DLIBRARY -DHAVE_CONFIG_H -DKANWADICT=\"/usr/pkg/share/kakasi/kanwadict\" -DITAIJIDICT=\"/usr/pkg/share/kakasi/itaijidict\" -I.. -I../src -I/export/pkgsrc/textproc/kakasi/work/.buildlink/include -O2 -I/export/pkgsrc/textproc/kakasi/work/.buildlink/include -Wall -Wunused -Wuninitialized -Wmissing-prototypes -Wmissing-declarations -pedantic -c libkakasi.c -fPIC -DPIC -o .libs/libkakasi.o
libkakasi.c:116: warning: no previous prototype for `digest_start_copy'
libkakasi.c:130: warning: no previous prototype for `put_separator'
libkakasi.c:147: warning: no previous prototype for `putchars'
libkakasi.c:157: warning: no previous prototype for `digest_out'
libkakasi.c:200: warning: no previous prototype for `digest'
libkakasi.c:263: warning: no previous prototype for `digest_shift'
libkakasi.c: In function `kakasi_do':
libkakasi.c:504: argument `str' doesn't match prototype
libkakasi.h:34: prototype declaration
libkakasi.c:508: warning: pointer targets in passing arg 1 of `setcharbuffer' differ in signedness
gmake[2]: *** [libkakasi.lo] エラー 1
gmake[2]: Leaving directory `/export/pkgsrc/textproc/kakasi/work/kakasi-2.3.4/lib'
gmake[1]: *** [all-recursive] エラー 1
gmake[1]: Leaving directory `/export/pkgsrc/textproc/kakasi/work/kakasi-2.3.4'
gmake: *** [all-recursive-am] エラー 2
*** Error code 2

これが出ないという人もいるのだなぁ。