I use fpc trunk by fpcup.
It works fine.
if you use 64bit mint 17, you need run once below script and also install libgdk-pixbuf2.0-dev.
And mingw and subversion also installed.
#!/bin/bash
#
ln -s /usr/lib/x86_64-linux-gnu/libX11.so.6 /usr/lib/libX11.so
ln -s /usr/lib/x86_64-linux-gnu/libgdk-pixbuf-2.0.so.0 /usr/lib/libgdk_pixbuf-2.0.so
ln -s /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 /usr/lib/libgdk-x11-2.0.so
ln -s /usr/lib/x86_64-linux-gnu/libpango-1.0.so.0 /usr/lib/libpango-1.0.so
ln -s /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 /usr/lib/libgtk-x11-2.0.so
ln -s /usr/lib/x86_64-linux-gnu/libcairo.so.2 /usr/lib/libcairo.so
ln -s /usr/lib/x86_64-linux-gnu/libatk-1.0.so.0 /usr/lib/libatk-1.0.so
ln -s /usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 /usr/lib/libpangocairo-1.0.so
ln -s /usr/bin/amd64-mingw32msvc-windres /usr/bin/windres
echo ‘you must install libgdk-pixbuf2.0-dev’
if you use 32bit, ' /usr/lib/x86_64-linux-gnu' folder and '/usr/bin/amd64-mingw32msvc-windres' to somthing.