busybox: support only one version

This commit removes the version selection for the busybox
package. Busybox is very well maintained, and bugs are typically fixed
in a timely fashion. Moreover, regressions are fairly unlikely in this
very stable and well-tested tool.

Therefore, there isn't a very compelling reason to have a version
selection for Busybox since we don't accept such a version selection
for the vast majority of other packages, unless there is a strong
reason to do so.

Consequently, this commit:

 * Removes the 1.19.4, 1.20.2 and 1.21.1 Busybox versions, patches and
   default configuration file.

 * Moves the 1.22.1 patches from package/busybox/1.22.1 to just
   package/busybox/ like all other packages.

 * Renames the default 1.22.1 configuration file to just
   busybox.config.

 * Adapts the busybox.mk makefile to encode the current version to
   use.

 * Adds appropriate options to Config.in.legacy. However, even though
   the BR2_BUSYBOX_VERSION_1_22_X is removed, we don't add a
   Config.in.legacy option for it, since it would cause a legacy
   warning for virtually *all* users as most people are currently
   using 1.22.x.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/package/busybox/1.20.2/busybox-1.20.2-kernel_ver.patch b/package/busybox/1.20.2/busybox-1.20.2-kernel_ver.patch
deleted file mode 100644
index 456fb08e11..0000000000
--- a/package/busybox/1.20.2/busybox-1.20.2-kernel_ver.patch
+++ /dev/null
@@ -1,25 +0,0 @@
---- busybox-1.20.2/libbb/kernel_version.c
-+++ busybox-1.20.2-kernel_ver/libbb/kernel_version.c
-@@ -20,18 +20,15 @@
- int FAST_FUNC get_linux_version_code(void)
- {
- 	struct utsname name;
--	char *s;
-+	char *s, *t;
- 	int i, r;
- 
--	if (uname(&name) == -1) {
--		bb_perror_msg("can't get system information");
--		return 0;
--	}
--
-+	uname(&name); /* never fails */
- 	s = name.release;
- 	r = 0;
- 	for (i = 0; i < 3; i++) {
--		r = r * 256 + atoi(strtok(s, "."));
-+		t = strtok(s, ".");
-+		r = r * 256 + (t ? atoi(t) : 0);
- 		s = NULL;
- 	}
- 	return r;