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GNUInstallDirs: Comply with Debian Policy on LIBEXECDIR

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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
This commit is contained in:
Dennis Klein
2020-10-08 15:58:54 +02:00
committed by Brad King
parent 75bcd3cf54
commit 798c1c3192
2 changed files with 15 additions and 4 deletions
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15
Modules/GNUInstallDirs.cmake
View File

@@ -167,8 +167,6 @@ _GNUInstallDirs_cache_path(CMAKE_INSTALL_BINDIR "bin"
"User executables (bin)")
_GNUInstallDirs_cache_path(CMAKE_INSTALL_SBINDIR "sbin"
"System admin executables (sbin)")
_GNUInstallDirs_cache_path(CMAKE_INSTALL_LIBEXECDIR "libexec"
"Program executables (libexec)")
_GNUInstallDirs_cache_path(CMAKE_INSTALL_SYSCONFDIR "etc"
"Read-only single-machine data (etc)")
_GNUInstallDirs_cache_path(CMAKE_INSTALL_SHAREDSTATEDIR "com"
@@ -262,6 +260,19 @@ set(_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE IN
unset(_libdir_set)
unset(__LAST_LIBDIR_DEFAULT)
if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
AND NOT CMAKE_CROSSCOMPILING
AND NOT EXISTS "/etc/arch-release"
AND EXISTS "/etc/debian_version" # is this a debian system ?
AND "${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
# see https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html#usrlibexec
# and https://www.debian.org/doc/debian-policy/ch-opersys#file-system-structure (section 9.1.1 bullet point 4)
_GNUInstallDirs_cache_path(CMAKE_INSTALL_LIBEXECDIR "${CMAKE_INSTALL_LIBDIR}"
"Program executables (${CMAKE_INSTALL_LIBDIR})")
else()
_GNUInstallDirs_cache_path(CMAKE_INSTALL_LIBEXECDIR "libexec"
"Program executables (libexec)")
endif()
_GNUInstallDirs_cache_path(CMAKE_INSTALL_INCLUDEDIR "include"
"C header files (include)")
_GNUInstallDirs_cache_path(CMAKE_INSTALL_OLDINCLUDEDIR "/usr/include"

4
Tests/RunCMake/GNUInstallDirs/Usr-Debian-stderr.txt
View File

@@ -5,7 +5,7 @@ CMAKE_INSTALL_DOCDIR='share/doc/Usr'
CMAKE_INSTALL_INCLUDEDIR='include'
CMAKE_INSTALL_INFODIR='share/info'
CMAKE_INSTALL_LIBDIR='lib/arch'
CMAKE_INSTALL_LIBEXECDIR='libexec'
CMAKE_INSTALL_LIBEXECDIR='lib/arch'
CMAKE_INSTALL_LOCALEDIR='share/locale'
CMAKE_INSTALL_LOCALSTATEDIR='var'
CMAKE_INSTALL_RUNSTATEDIR='var/run'
@@ -20,7 +20,7 @@ CMAKE_INSTALL_FULL_DOCDIR='/usr/share/doc/Usr'
CMAKE_INSTALL_FULL_INCLUDEDIR='/usr/include'
CMAKE_INSTALL_FULL_INFODIR='/usr/share/info'
CMAKE_INSTALL_FULL_LIBDIR='/usr/lib/arch'
CMAKE_INSTALL_FULL_LIBEXECDIR='/usr/libexec'
CMAKE_INSTALL_FULL_LIBEXECDIR='/usr/lib/arch'
CMAKE_INSTALL_FULL_LOCALEDIR='/usr/share/locale'
CMAKE_INSTALL_FULL_LOCALSTATEDIR='/var'
CMAKE_INSTALL_FULL_RUNSTATEDIR='/var/run'