[Buildroot] [git commit] package: add <pkg>-rebuild and <pkg>-reconfigure

commit: http://git.buildroot.net/buildroot/commit/?id=4ed4e5016b741341059ed826416dad3291df0b2c
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

We are often asked "how can I restart the build of a package ?" or
"how can I restart the build of package from the configure part
?". Obviously, tweaking with stamp files is possible, but not very
user friendly.

Therefore this patch adds two new per-package targets: <pkg>-rebuild
and <pkg>-reconfigure. They will remove the right stamp files and
restart the complete build process (by using the 'all' target, so that
not only the package is reconfigured, recompiled and reinstalled, but
the root filesystem images are also regenerated).

Signed-off-by: Thomas Petazzoni <redacted>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 package/Makefile.package.in |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/package/Makefile.package.in b/package/Makefile.package.in
index 15fc085..53cc8eb 100644
--- a/package/Makefile.package.in
+++ b/package/Makefile.package.in

@@ -557,6 +557,22 @@ $(1)-clean:		$(1)-uninstall \
 
 $(1)-dirclean:		$$($(2)_TARGET_DIRCLEAN)
 
+$(1)-clean-for-rebuild:
+ifneq ($$($(2)_OVERRIDE_SRCDIR),)
+			rm -f $$($(2)_TARGET_RSYNC)
+endif
+			rm -f $$($(2)_TARGET_BUILD)
+			rm -f $$($(2)_TARGET_INSTALL_STAGING)
+			rm -f $$($(2)_TARGET_INSTALL_TARGET)
+			rm -f $$($(2)_TARGET_INSTALL_HOST)
+
+$(1)-rebuild:		$(1)-clean-for-rebuild all
+
+$(1)-clean-for-reconfigure: $(1)-clean-for-rebuild
+			rm -f $$($(2)_TARGET_CONFIGURE)
+
+$(1)-reconfigure:	$(1)-clean-for-reconfigure all
+
 # define the PKG variable for all targets, containing the
 # uppercase package variable prefix
 $$($(2)_TARGET_INSTALL_TARGET):		PKG=$(2)