rsync: remove upstream's rebuild logic

Upstream some well intended but broken logic to reimplement the rebuild
functionality of automake. However this isn't out-of-tree safe and quite basic,
which means if it ever does execute (say, configure.ac or aclocal.m4 is touched)
then the build fails.

As we delete ${B} and re-run autoreconf on every build this is redundant, so
just delete it all.

[ YOCTO #9445 ]

(From OE-Core rev: ccc61cee8f097862640722abb9a9f53781efdac3)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 71 insertions, 0 deletions

diff --git a/meta/recipes-devtools/rsync/files/makefile-no-rebuild.patch b/meta/recipes-devtools/rsync/files/makefile-no-rebuild.patch
new file mode 100644
index 0000000000..3d27fe72cc
--- /dev/null
+++ b/meta/recipes-devtools/rsync/files/makefile-no-rebuild.patch
@@ -0,0 +1,69 @@
+Remove the Makefile rules to reinvoke autoconf, they're not out-of-tree safe and
+generally overcomplicated, and we ensure that autoreconf is invoked if required.
+
+Upstream-Status: Inappropriate
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+diff --git a/Makefile.in b/Makefile.in
+index 151247d..8f3fdb6 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -141,58 +141,6 @@ gen: conf proto.h man
+ gensend: gen
+        rsync -aivzc $(GENFILES) $${SAMBA_HOST-samba.org}:/home/ftp/pub/rsync/generated-files/
+ 
+-conf:
+-       cd $(srcdir) && $(MAKE) -f prepare-source.mak conf
+-
+-aclocal.m4: $(srcdir)/m4/*.m4
+-       aclocal -I $(srcdir)/m4
+-
+-configure.sh config.h.in: configure.ac aclocal.m4
+-       @if test -f configure.sh; then cp -p configure.sh configure.sh.old; else touch configure.sh.old; fi
+-       @if test -f config.h.in; then cp -p config.h.in config.h.in.old; else touch config.h.in.old; fi
+-       autoconf -o configure.sh
+-       autoheader && touch config.h.in
+-       @if diff configure.sh configure.sh.old >/dev/null 2>&1; then \
+-           echo "configure.sh is unchanged."; \
+-           rm configure.sh.old; \
+-       else \
+-           echo "configure.sh has CHANGED."; \
+-       fi
+-       @if diff config.h.in config.h.in.old >/dev/null 2>&1; then \
+-           echo "config.h.in is unchanged."; \
+-           rm config.h.in.old; \
+-       else \
+-           echo "config.h.in has CHANGED."; \
+-       fi
+-       @if test -f configure.sh.old -o -f config.h.in.old; then \
+-           if test "$(MAKECMDGOALS)" = reconfigure; then \
+-               echo 'Continuing with "make reconfigure".'; \
+-           else \
+-               echo 'You may need to run:'; \
+-               echo '  make reconfigure'; \
+-               exit 1; \
+-           fi \
+-       fi
+-
+-reconfigure: configure.sh
+-       ./config.status --recheck
+-       ./config.status
+-
+-Makefile: Makefile.in config.status configure.sh config.h.in
+-       @if test -f Makefile; then cp -p Makefile Makefile.old; else touch Makefile.old; fi
+-       @./config.status
+-       @if diff Makefile Makefile.old >/dev/null 2>&1; then \
+-           echo "Makefile is unchanged."; \
+-           rm Makefile.old; \
+-       else \
+-           if test "$(MAKECMDGOALS)" = reconfigure; then \
+-               echo 'Continuing with "make reconfigure".'; \
+-           else \
+-               echo "Makefile updated -- rerun your make command."; \
+-               exit 1; \
+-           fi \
+-       fi
+-
+ rsync-ssl: $(srcdir)/rsync-ssl.in Makefile
+        sed 's;\@bindir\@;$(bindir);g' <$(srcdir)/rsync-ssl.in >rsync-ssl
+        @chmod +x rsync-ssl
diff --git a/meta/recipes-devtools/rsync/rsync_3.1.2.bb b/meta/recipes-devtools/rsync/rsync_3.1.2.bb
index 4b91ac7774..9637ed4e77 100644
--- a/meta/recipes-devtools/rsync/rsync_3.1.2.bb
+++ b/meta/recipes-devtools/rsync/rsync_3.1.2.bb
@@ -1,5 +1,7 @@
 require rsync.inc
 
+SRC_URI += "file://makefile-no-rebuild.patch"
+
 SRC_URI[md5sum] = "0f758d7e000c0f7f7d3792610fad70cb"
 SRC_URI[sha256sum] = "ecfa62a7fa3c4c18b9eccd8c16eaddee4bd308a76ea50b5c02a5840f09c0a1c2"