I'm trying to build LLVM, CFE and RT from sources on an old PowerMac
with OS X 10.5.
After download and unpack into LLVM_SOURCE_DIR (with
--strip-components=1), I configure with:
cmake -DCMAKE_INSTALL_PREFIX="/opt/llvm" \
-DLLVM_TARGETS_TO_BUILD="PowerPC" \
-DLLVM_INCLUDE_TOOLS="ON" \
-DLLVM_BUILD_TESTS="ON"
"$LLVM_SOURCE_DIR"
It results in "llvm-config not found: specify LLVM_CONFIG_PATH". The
docs at https://llvm.org/docs/CMake.html don't appear to discuss
LLVM_CONFIG_PATH.
I'm building out-of-tree with these two variables:
LLVM_SOURCE_DIR="$HOME/llvm_source"
LLVM_BUILD_DIR="$HOME/llvm_build"
How should I fix the LLVM_CONFIG_PATH error?
Thanks in advance.
I'm trying to build LLVM, CFE and RT from sources on an old PowerMac
with OS X 10.5.
Which version of clang/llvm are you using?
-Tom
I'm trying to build LLVM, CFE and RT from sources on an old PowerMac
with OS X 10.5.
Which version of clang/llvm are you using?
LLVM 7.0.
The script is available at
https://github.com/noloader/build-llvm/blob/master/build-llvm.sh
If I understand correctly, what you are doing with --strip-components is to
merge the the source trees into a single directory. This won't work. You
need to keep each project in its own directory and lay them out in a specific
way. You should review the getting started guide here:
https://llvm.org/docs/GettingStarted.html#getting-started-quickly-a-summary
-Tom
Thanks Tom.
Yeah, that's what I am doing.
Does LLVM have a script ready that does all of this? There's no reason
for me and other dev's to waste time on this.
Jeff
The script at https://github.com/noloader/build-llvm is doing pretty
good, but I can't seem to shake the missing __thread_local_data()
function. It causes failures on X6, Aarch64 and PowerPC (perhaps
others).
All the configurations I have tried end up dying like described at
https://stackoverflow.com/q/53356172/608639.
The guide at https://llvm.org/docs/GettingStarted.html does not appear
to have a procedure that avoids the failure. The FAQ at
https://llvm.org/docs/FAQ.html doe snot discuss the missing symbol,
either.
What is the trick to get things to compile?
Jeff
The script is available at
https://github.com/noloader/build-llvm/blob/master/build-llvm.sh
If I understand correctly, what you are doing with --strip-components is to
merge the the source trees into a single directory. This won't work. You
need to keep each project in its own directory and lay them out in a specific
way. You should review the getting started guide here:
https://llvm.org/docs/GettingStarted.html#getting-started-quickly-a-summary
Thanks Tom.
Yeah, that's what I am doing.
Does LLVM have a script ready that does all of this? There's no reason
for me and other dev's to waste time on this.
The script at https://github.com/noloader/build-llvm is doing pretty
good, but I can't seem to shake the missing __thread_local_data()
function. It causes failures on X6, Aarch64 and PowerPC (perhaps
others).
All the configurations I have tried end up dying like described at
https://stackoverflow.com/q/53356172/608639.
The guide at https://llvm.org/docs/GettingStarted.html does not appear
to have a procedure that avoids the failure. The FAQ at
https://llvm.org/docs/FAQ.html doe snot discuss the missing symbol,
either.
What is the trick to get things to compile?
You can try using the utils/release/test-release.sh script. This is what
release testers use to build and package the binaries. It does a lot
of extra stuff that you probably don't need, like staged compiler builds,
but it's a good reference to see if the standard configuration works on your
system.
I also noticed that you have a script for building cmake, what OS are you using
that doesn't have cmake3?
-Tom