Build a multicall binary instead of multiple binaries to reduce the storage footprint

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

debian/changelog

+rust-coreutils (0.0.12-0+apertis3) UNRELEASED; urgency=medium
+
+  * Build a multicall binary instead of multiple binaries
+      to reduce the storage footprint
+
+ -- Dylan Aïssi <dylan.aissi@collabora.com>  Thu, 17 Feb 2022 15:34:51 +0000
+
 rust-coreutils (0.0.12-0+apertis2) apertis; urgency=medium
 
   * d/p/cp-Avoid-following-a-destination-symlink-with-P.patch:

debian/rules

@@ -5,6 +5,11 @@ include /usr/share/rustc/architecture.mk
 export CFLAGS CXXFLAGS CPPFLAGS LDFLAGS
 export DEB_HOST_RUST_TYPE DEB_HOST_GNU_TYPE
 VERSION := $(shell dpkg-parsechangelog -S Version|sed -e "s|.*~\(.*\)-.*|\1|g")
+
+# Build a multicall binary instead of multiple binaries
+# to reduce the storage footprint in Apertis
+export MULTICALL = y
+
 %:
 	dh $@ --buildsystem cargo
 

debian/rust-coreutils.install

+# Multicall binary
+usr/local/bin/coreutils /bin/
+
 # GNU/Coreutils: Installed in /bin/
 usr/local/bin/cat /bin/
 usr/local/bin/chgrp /bin/

debian/rust-coreutils.links

@@ -12,3 +12,7 @@ usr/bin/hashsum usr/bin/sha3-384sum
 usr/bin/hashsum usr/bin/sha3-512sum
 usr/bin/hashsum usr/bin/shake128sum
 usr/bin/hashsum usr/bin/shake256sum
+# Some binaries are installed in /bin/, some others in /usr/bin/
+# but the upstream makefile doesn't handle this when it creates symlinks.
+# So, we need to create another symlink to make binaries in /usr/bin/ working
+bin/coreutils   usr/bin/coreutils

debian/rust-coreutils.manpages

 docs/*.1
+usr/local/man/man1/coreutils.1.gz