I'm building LibreOffice on a Devuan Excalibur machine. On that machine, I also have an installation of CLion at /opt/clion ; and ccache is also installed. After * installing the prerequisite packages suggested for Debian * cloning the main repo, and subrepositories; * configuring the build with: autogen.sh --enable-dbgutil --without-doxygen --disable-librelogo --enable-optimized=debug * running make ... I get the following error at some point: ccache: error: execute_noreturn of /opt/clion/bin/clang failed: Permission denied make[1]: *** [/home/eyalroz/src/libreoffice/solenv/gbuild/LinkTarget.mk:366: /home/eyalroz/src/libreoffice/workdir/GenCObject/UnpackedTarball/pdfium/core/fxcodec/jpeg/jpeg_common.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [Makefile:301: build] Error 2 it seems like the LO build was trying to use ccache, which in turn was trying to execute /opt/clion/bin/clang as though it was a binary file? I'm not quite sure what I'm seeing. I checked the directory mentioned: $ ls -lad /opt/clion/bin/clang drwxr-xr-x 4 root root 4096 Jan 21 1970 /opt/clion/bin/clang nothing suspicious there - expect perhaps the misleading name? I'll provide additional information as requested of course.