Compilation with '--lto' fails with "In function `loadConstantsBlob': undefined reference to `constant_bin_data'"

• Nuitka version, full Python version and Platform (Windows, OSX, Linux …)

0.6.11.2
Python: 3.6.9 (default, Oct  8 2020, 12:12:24) 
Executable: /usr/bin/python3
OS: Linux
Arch: x86_64

• How did you install Nuitka and Python pip

• Many times when you get an error from Nuitka, your setup may be special Every time.

• Note if this is a regression Starting to get error after upgrade from Nuitka version 0.6.9.4.

• Issue itself I have a project with with wide dependencies that was building for about half a year but broke after version upgrade. I want to add that on Ubuntu 20.04 it’s still working, so I don’t know whether it is Python or libc version matters.

Doesn’t work with optmization: nuitka3 --standalone --plugin-enable=pylint-warnings --follow-imports --lto --output-dir=./build ./bootstrap.py the error is:

Nuitka-Options:INFO: Recursing all is the default for standalone mode and need not be specified.
Nuitka:INFO: Starting Python compilation.
Nuitka:INFO: Completed Python level compilation and optimization.
Nuitka:INFO: Generating source code for C backend compiler.
Nuitka:INFO: Running data composer tool for optimal constant value handling.
Nuitka:INFO: Running C level backend compilation via Scons.
Nuitka-Scons:INFO: Backend C compiler: gcc (gcc).
Nuitka-Scons:INFO: Slow C compilation detected, used 60s so far, this might indicate scalability problems.
/tmp/ccT7dRnO.ltrans30.ltrans.o: In function `loadConstantsBlob':
<artificial>:(.text+0x24512): undefined reference to `constant_bin_data'
<artificial>:(.text+0x24519): undefined reference to `constant_bin_data'
<artificial>:(.text+0x245da): undefined reference to `constant_bin_data'
collect2: error: ld returned 1 exit status
Nuitka-Scons:INFO: Running gcc -o .../build/bootstrap.dist/bootstrap -flto=8 -O3 -fpartial-inlining -freorder-functions -z noexecstack -s -Wl,-R,'$ORIGIN' -Wl,--disable-new-dtags @"./@link_input.txt -L/usr/lib -ldl -lm -lpython3.6m took 98.56 seconds

Works w/o –lto: nuitka3 --standalone --plugin-enable=pylint-warnings --follow-imports -output-dir=./build ./bootstrap.py

[kayhayen]

I wonder what this artificial is about. Never seen that before. Maybe some hardening options are used that prevent it.

[kayhayen]

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