package/mkpimage: define extract step to allow patching

As recently discussed on the list:
http://lists.busybox.net/pipermail/buildroot/2021-April/308373.html

Packages like mkpimage where the source code is included in the Buildroot
tree, currently doesn't use an extract step (which also skips the patch
step), so they cannot be patched by a patch in BR2_GLOBAL_PATCH_DIR (or the
pkgdir), which is a bit confusing.

As a fix, add a simple extract step that copies the source file to the build
directory, so the patch step gets run as well.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/mkpimage/mkpimage.mk b/package/mkpimage/mkpimage.mk
index 8e08013f915a210dec716e20f05bc4888a117dd7..71500f00f375d120fc29d819a960885bb401dc74 100644 (file)
--- a/package/mkpimage/mkpimage.mk
+++ b/package/mkpimage/mkpimage.mk
@@ -9,9 +9,13 @@ HOST_MKPIMAGE_LICENSE = GPL-2.0
 # source included in the package
 # came from barebox's repository:
 # https://git.pengutronix.de/cgit/barebox/tree/scripts/socfpga_mkimage.c?id=55d29525146dcd280987dfd565bfd34f08858fb3
+define HOST_MKPIMAGE_EXTRACT_CMDS
+       cp $(HOST_MKPIMAGE_PKGDIR)/mkpimage.c $(@D)
+endef
+
 define HOST_MKPIMAGE_BUILD_CMDS
        $(HOSTCC) $(HOST_CFLAGS) $(HOST_LDFLAGS) \
-               package/mkpimage/mkpimage.c -o $(@D)/mkpimage
+               $(@D)/mkpimage.c -o $(@D)/mkpimage
 endef
 
 define HOST_MKPIMAGE_INSTALL_CMDS