時間がかかるので、必要な部分のみ。toolsはstaticでビルド。
gettext-runtime
gettext-tools
cat gettext-tools/woe32dll/gettextlib-exports.c | grep -v rpl_opt > gettext-tools/woe32dll/gettextlib-exports.c.new
mv gettext-tools/woe32dll/gettextlib-exports.c.new gettext-tools/woe32dll/gettextlib-exports.c
gettext-runtime
cd gettext-runtime
./configure --prefix=/mingw --enable-threads=win32 --enable-relocatable
make && make install
gettext-tools
cd gettext-tools2012.08.25 gettext-0.18.1.1
./configure --prefix=/mingw --enable-threads=win32 --enable-relocatable --disable-shared
make
install src/msgfmt.exe /mingw/bin
install src/msgmerge.exe /mingw/bin
install src/xgettext.exe /mingw/bin