port bug: exiv2

[h]

when compiling exiv2:
make works fine;
on make install, this error happens:

/usr/bin/install -c -o root -g wheel .libs/exiv2 /usr/local/bin/exiv2
../config/mkinstalldirs /usr/local/man
../config/mkinstalldirs /usr/local/man/man1
/usr/bin/install -c -o root -g wheel -m 644 exiv2.1 
/usr/local/man/man1/exiv2.1
gmake[1]: Leaving directory `/usr/ports/graphics/exiv2/work/exiv2-0.12/src'
install: Argument list too long
*** Error code 2

Stop in /usr/ports/graphics/exiv2.