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| | | |
| == Creating a sysroot == | | == Creating a sysroot == |
| + | |
| + | === compiler === |
| + | |
| + | Get a linaro cross compiler. For linux, there are official ones available, for OS X, I used http://www.welzels.de/blog/en/arm-cross-compiling-with-mac-os-x/comment-page-1/ |
| + | |
| + | I needed to use the gcc 4.8 version for my compiled binaries to work on raspbian. GCC 4.9 worked fine on alarmpi. |
| + | |
| + | == everything else == |
| | | |
| In this case a sysroot is just a copy of the important files for compiling built for the target system. It's also easier to just include a superset of the import files by grabbing pretty much everything. | | In this case a sysroot is just a copy of the important files for compiling built for the target system. It's also easier to just include a superset of the import files by grabbing pretty much everything. |
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| If you want a narrower approach, I suspect the important files are in | | If you want a narrower approach, I suspect the important files are in |
| | | |
− | * /usr/include | + | * /usr/include |
− | * /usr/lib | + | * /usr/lib |
− | * /usr/local/include | + | * /usr/local/include |
− | * /usr/local/lib | + | * /usr/local/lib |
− | * /lib | + | * /lib |
− | * /opt/vc | + | * /opt/vc |
| | | |
| Another common approach is to create an nfs server an the rpi2 and just mount nfs:/ from the rpi2 on the dev machine. | | Another common approach is to create an nfs server an the rpi2 and just mount nfs:/ from the rpi2 on the dev machine. |
| | | |
| == Build qt5.5 for the rpi2 == | | == Build qt5.5 for the rpi2 == |
| + | |
| + | <syntaxhighlight lang="bash"> |
| + | ./configure -v -nomake examples -nomake tests -release -opengl es2 -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=/usr/local/linaro/arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf- -sysroot /Volumes/raspbian -prefix /usr/local/qt5.5-raspbian -confirm-license -opensource |
| + | </syntaxhighlight> |
| + | |
| | | |
| build, takes 43 minutes, 32 seconds on my 8 core MBP. | | build, takes 43 minutes, 32 seconds on my 8 core MBP. |
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| make -j8 | | make -j8 |
| make install -j8 | | make install -j8 |
| + | </syntaxhighlight> |
| + | |
| + | |
| + | once make install is run, there will be a a /volumes/rasbpian/usr/local/qt5.5-raspbian folder. copy that back to the pi in the same location |
| + | |
| + | First make a target location on the pi |
| + | <syntaxhighlight lang="bash"> |
| + | sudo mkdir /usr/local/qt5.5-raspbian |
| + | chown pi:pi /usr/local/qt5.5-raspbian |
| + | </syntaxhighlight> |
| + | |
| + | Copy the files from the host machine to the pi. |
| + | <syntaxhighlight lang="bash"> |
| + | |
| </syntaxhighlight> | | </syntaxhighlight> |