The Makefile calls awk on a "*.c" glob. The results of this glob are sorted
but the order depends on the locale settings, particularly whether
"util.c" and "util2.c" sort before or after each other. In en_US.UTF-8
they sort one way, in C, they sort the other. The sorting order changes 
the output binaries. The behaviour also changes dependning on whether
SHELL (/bin/sh) is dash or bash.

Specify a C locale setting to be deterministic.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Submitted: https://github.com/WayneD/rsync/pull/155

Upstream-Status: Backport [ish, see below]

After discussion upstream renamed util.c to util1.c which avoids the problem
in a different way. This patch can be dropped when we upgrade to include:
https://github.com/WayneD/rsync/commit/d3085f7add38a5cf833a0b31cb0637ff46c80f8d

Index: rsync-3.2.3/Makefile.in
===================================================================
--- rsync-3.2.3.orig/Makefile.in
+++ rsync-3.2.3/Makefile.in
@@ -26,6 +26,11 @@ MKDIR_P=@MKDIR_P@
 VPATH=$(srcdir)
 SHELL=/bin/sh
 
+# We use globbing in commands, need to be deterministic
+unexport LC_ALL
+LC_COLLATE=C
+export LC_COLLATE
+
 .SUFFIXES:
 .SUFFIXES: .c .o