New GitHub issue #96050 from codeandfire:<br>

<hr>

<pre>
# Bug report

Python 3.11.0rc1 build failing on Ubuntu 20.04 VM.

On running:
```
./configure --enable-optimizations --with-lto
make -j4
```
The `make` command fails with this error:
```
make[1]: *** [Makefile:2676: Modules/posixmodule.o] Error 1
make: *** [Makefile:771: profile-opt] Error 2
make: *** Waiting for unfinished jobs....
lto1: internal compiler error: compressed stream: data error
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-9/README.Bugs> for instructions.
lto-wrapper: fatal error: gcc returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
make: *** [Makefile:1185: Programs/_freeze_module] Error 1
```
A rerun sometimes changes the error to:
```
lto1: internal compiler error: bus error
```
Output prior to this error goes like this:
```
/usr/bin/install -c -m 644 ./Include/internal/pycore_unionobject.h /usr/local/include/python3.11/internal
/usr/bin/install -c -m 644 ./Include/internal/pycore_warnings.h /usr/local/include/python3.11/internal
/usr/bin/install -c -m 644 pyconfig.h /usr/local/include/python3.11/pyconfig.h
gcc -pthread -c -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall    -fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal  -I. -I./Include    -DPy_BUILD_CORE \
      -DGITVERSION="\"`LC_ALL=C git --git-dir ./.git rev-parse --short HEAD`\"" \
      -DGITTAG="\"`LC_ALL=C git --git-dir ./.git describe --all --always --dirty`\"" \
      -DGITBRANCH="\"`LC_ALL=C git --git-dir ./.git name-rev --name-only HEAD`\"" \
      -o Modules/getbuildinfo.o ./Modules/getbuildinfo.c
gcc -pthread   -fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g  -o Programs/_freeze_module Programs/_freeze_module.o Modules/getpath_noop.o Modules/getbuildinfo.o Parser/token.o  Parser/pegen.o Parser/pegen_errors.o Parser/action_helpers.o Parser/parser.o Parser/string_parser.o Parser/peg_api.o Parser/myreadline.o Parser/tokenizer.o Objects/abstract.o Objects/accu.o Objects/boolobject.o Objects/bytes_methods.o Objects/bytearrayobject.o Objects/bytesobject.o Objects/call.o Objects/capsule.o Objects/cellobject.o Objects/classobject.o Objects/codeobject.o Objects/complexobject.o Objects/descrobject.o Objects/enumobject.o Objects/exceptions.o Objects/genericaliasobject.o Objects/genobject.o Objects/fileobject.o Objects/floatobject.o Objects/frameobject.o Objects/funcobject.o Objects/interpreteridobject.o Objects/iterobject.o Objects/listobject.o Objects/longobject.o Objects/dictobject.o Objects/odictobject.o Objects/memoryobject.o Objects/methodobject.o Objects/moduleobject.o Objects/namespaceobject.o Objects/object.o Objects/obmalloc.o Objects/picklebufobject.o Objects/rangeobject.o Objects/setobject.o Objects/sliceobject.o Objects/structseq.o Objects/tupleobject.o Objects/typeobject.o Objects/unicodeobject.o Objects/unicodectype.o Objects/unionobject.o Objects/weakrefobject.o Python/_warnings.o Python/Python-ast.o Python/Python-tokenize.o Python/asdl.o Python/ast.o Python/ast_opt.o Python/ast_unparse.o Python/bltinmodule.o Python/ceval.o Python/codecs.o Python/compile.o Python/context.o Python/dynamic_annotations.o Python/errors.o Python/frame.o Python/frozenmain.o Python/future.o Python/getargs.o Python/getcompiler.o Python/getcopyright.o Python/getplatform.o Python/getversion.o Python/hamt.o Python/hashtable.o Python/import.o Python/importdl.o Python/initconfig.o Python/marshal.o Python/modsupport.o Python/mysnprintf.o Python/mystrtoul.o Python/pathconfig.o Python/preconfig.o Python/pyarena.o Python/pyctype.o Python/pyfpe.o Python/pyhash.o Python/pylifecycle.o Python/pymath.o Python/pystate.o Python/pythonrun.o Python/pytime.o Python/bootstrap_hash.o Python/specialize.o Python/structmember.o Python/symtable.o Python/sysmodule.o Python/thread.o Python/traceback.o Python/getopt.o Python/pystrcmp.o Python/pystrtod.o Python/pystrhex.o Python/dtoa.o Python/formatter_unicode.o Python/fileutils.o Python/suggestions.o Python/dynload_shlib.o     Modules/config.o Modules/main.o Modules/gcmodule.o Modules/atexitmodule.o  Modules/faulthandler.o  Modules/posixmodule.o  Modules/signalmodule.o  Modules/_tracemalloc.o  Modules/_codecsmodule.o  Modules/_collectionsmodule.o  Modules/errnomodule.o  Modules/_io/_iomodule.o Modules/_io/iobase.o Modules/_io/fileio.o Modules/_io/bytesio.o Modules/_io/bufferedio.o Modules/_io/textio.o Modules/_io/stringio.o  Modules/itertoolsmodule.o  Modules/_sre/sre.o  Modules/_threadmodule.o  Modules/timemodule.o  Modules/_weakref.o  Modules/_abc.o  Modules/_functoolsmodule.o  Modules/_localemodule.o  Modules/_operator.o  Modules/_stat.o  Modules/symtablemodule.o  Modules/pwdmodule.o  Modules/xxsubtype.o -lpthread -ldl  -lutil                        -lm 
make[1]: Leaving directory '/home/paperspace/cpython'
```
along with several compiler warnings.

# Your environment

A fresh Ubuntu 20.04 VM with 4-core CPU and 8 GB RAM.

Packages installed on this VM are: `gcc`, `g++`, `make`, `libc-dev`, `pkg-config`, `libffi-dev`, `zlib1g-dev`. Python build dependencies are installed using `apt`:
```
apt build-dep python3
```
I was able to successfully build Python 3.9.13 and Python 3.10.6 in this environment.
</pre>

<hr>

<a href="https://github.com/python/cpython/issues/96050">View on GitHub</a>
<p>Labels: type-bug</p>
<p>Assignee: </p>