ROOT cannot read compiler includes when compiled with a ccache compiler wrapper #10556
Description
As mentioned here in some setups the compiler is actually a symlink to ccache. When ROOT is compiled with such a wrapper, it stores ccache as the compiler in compiledata.h (with #define CLING_CXX_RLTV "ccache ") and then ROOT cannot figure out compiler include paths at runtime:
$ root
ERROR in cling::CIFactory::createCI(): cannot extract standard library include paths!
Invoking:
LC_ALL=C ccache -xc++ -E -v /dev/null 2>&1 | sed -n -e '/^.include/,${' -e '/^ \/.*++/p' -e '}'
Results was:
With exit code 0
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