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CMake/Tests/RunCMake/GNUInstallDirs
Dennis Klein 798c1c3192 GNUInstallDirs: Comply with Debian Policy on LIBEXECDIR
If CMAKE_INSTALL_PREFIX is /usr, CMAKE_INSTALL_LIBEXECDIR shall return
the same value as CMAKE_INSTALL_LIBDIR on Debian.

While the FHS allows /usr/libexec for internal binaries
(https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibexec) the
Debian Policy Manual states an exception here (section 9.1.1 bullet point 4):
https://www.debian.org/doc/debian-policy/ch-opersys#file-system-structure.

Fixes: #21287
2020-10-08 11:10:41 -04:00
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