New subject: installing Python package errors out during live media creation

21 Sep 2020


      Hi,
I am running this program in the %post section of the kickstart.
pip install tesserwrap
This is the output:
###
WARNING: Running pip install with root privileges is generally not a 
good idea. Try `pip3 install --user` instead.
     ERROR: Command errored out with exit status 1:
      command: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; 
sys.argv[0] = '"'"'/tmp/pip-install-s683avc5/tesserwrap/setup.py'"'"'; 
__file__='"'"'/tmp/pip-install-s683avc5/tesserwrap/setup.py'"'"';f=getattr(tokenize, 
'"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', 
'"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' 
install --record /tmp/pip-record-t33ik5oc/install-record.txt 
--single-version-externally-managed --compile
          cwd: /tmp/pip-install-s683avc5/tesserwrap/
     Complete output (19 lines):
     ld: cannot find -ltesseract_api
     ld: warning: cannot find entry symbol _start; not setting start address
     running install
     running build
     running build_py
     creating build
     creating build/lib.linux-x86_64-3.8
     creating build/lib.linux-x86_64-3.8/tesserwrap
     copying tesserwrap/core.py -> build/lib.linux-x86_64-3.8/tesserwrap
     copying tesserwrap/__init__.py -> build/lib.linux-x86_64-3.8/tesserwrap
     running build_ext
     building 'libtesserwrap' extension
     creating build/temp.linux-x86_64-3.8
     creating build/temp.linux-x86_64-3.8/tesserwrap
     creating build/temp.linux-x86_64-3.8/tesserwrap/cpp
     gcc -pthread -Wno-unused-result -Wsign-compare 
-DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall 
-Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 
-Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong 
-grecord-gcc-switches -m64 -mtune=generic -fasynchronous-unwind-tables 
-fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 
-g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 
-Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong 
-grecord-gcc-switches -m64 -mtune=generic -fasynchronous-unwind-tables 
-fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 
-g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 
-Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong 
-grecord-gcc-switches -m64 -mtune=generic -fasynchronous-unwind-tables 
-fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv 
-fPIC -I/usr/local/include -I/usr/include/python3.8 -c 
tesserwrap/cpp/tesseract_ext.cpp -o 
build/temp.linux-x86_64-3.8/tesserwrap/cpp/tesseract_ext.o
     gcc: fatal error: cannot execute ‘cc1plus’: execvp: No such file or 
directory
     compilation terminated.
     error: command 'gcc' failed with exit status 1
###
Any idea what might cause this? When I run the command while running 
created live media (after creation), it finishes normally.
Here is the kickstart:
https://github.com/vojtapolasek/Fegora/blob/liveimage/fegora_live_cz.ks
Thank you,
Vojta