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configure*: remove ultimately unused INSTALL and RANLIB check macros
From the manual of GNU Autoconf (version 2.69): > -- Macro: AC_PROG_INSTALL > Set output variable 'INSTALL' to the name of a BSD-compatible > 'install' program, if one is found in the current 'PATH'. > Otherwise, set 'INSTALL' to 'DIR/install-sh -c', checking the > directories specified to 'AC_CONFIG_AUX_DIR' (or its default > directories) to determine DIR (*note Output::). Also set the > variables 'INSTALL_PROGRAM' and 'INSTALL_SCRIPT' to '${INSTALL}' > and 'INSTALL_DATA' to '${INSTALL} -m 644'. > -- Macro: AC_PROG_RANLIB > Set output variable 'RANLIB' to 'ranlib' if 'ranlib' is found, > and otherwise to ':' (do nothing). None of the aforementioned variables are used: $ git grep -F -e '${INSTALL}' -e INSTALL_PROGRAM -e INSTALL_SCRIPT \ -e INSTALL_DATA -e RANLIB $ So remove the macros that define them. Misc: The macros in question have been present on configure.ac since it was created, on commit 1379851 ("Baseline firejail 0.9.28", 2015-08-08). And while the install command is called multiple times, ranlib is not used anywhere (and it seems that it was never used): $ git grep -E '^[[:blank:]]+install ' -- '*Makefile*' '*.mk*' | wc -l 32 $ git grep -F ranlib | wc -l 0 $ git log --pretty= --name-only -G'RANLIB|ranlib' \ 1379851..master | sort -u README.md Kind of relates to netblue30#4695.
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