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## Makefile-driven BBA creation
This Makefile will generate a Xilinx A35 chipdb if java, capnproto and
capnproto-java are installed.
### Installing dependencies
Install java and javac if not already installed:
```
# Or equivalent for your local system.
sudo apt-get install openjdk-10-jdk
```
Install capnproto if not already installed:
```
# Or equivalent for your local system.
sudo apt-get install capnproto libcapnp-dev
```
Install capnproto-java if not already installed:
```
git clone https://github.com/capnproto/capnproto-java.git
cd capnproto-java
make
sudo make install
```
### Instructions
Once dependencies are installed, just run "make". This should download
remaining dependencies and build the chipdb and build nextpnr if not built.
#### Re-building the chipdb
```
# Remove the text BBA
rm build/nextpnr/fpga_interchange/chipdb.bba
# Build the BBA
make
```
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