[avr-llvm-devel] avr-llvm build

[Hannes W. <han...@ma...>]

Hello avr-llvm developers,

I just tried to build avr-llvm as described in gettingstarted.html, however I ran across some problems:

The patches from avr-llvm (cat ../avr-llvm/patches/*.diff | patch -p0) did not apply cleanly:
RegAllocGreedy.diff was missing some path information (lib/CodeGen/), but I told patch manually, which file to use.

After that, I ran configure, like described in the tutorial (../llvm/configure --prefix=$HOME/usr/avr-llvm/ --disable-optimized --enable-targets=avr), however it seems this configure-script calls another script, which is not properly patched because it does not know the "avr" target.
The second configure script is called with the following line:
./../../llvm/projects/sample/configure --disable-option-checking '--prefix=/Users/hannesweisbach/usr/avr-llvm'  '--disable-optimized' '--enable-targets=avr' 'CFLAGS=-L/opt/local/lib -I/opt/local/include' --cache-file=/dev/null --srcdir=../../../llvm/projects/sample
[...]
configure: error: Unrecognized target avr
configure: error: ../../../llvm/projects/sample/configure failed for projects/sample

I added the "avr" target manually, but the build fails (as expected) after throwing a lot of errors like this one:
llvm-build: error: invalid target to enable: 'AVR' (not in project)

So my question is: Can avr-llvm be used with any version of llvm and, if not, what is the recommended version of llvm to use with avr-llvm (svn revision or release)?

Thanks in advance,

Hannes