From: Phil Blundell <p...@pbcl.net>

This is a backport from oe master of the code which adjusts the busybox
config according to DISTRO_FEATURES etc.

Signed-off-by: Phil Blundell <ph...@gnu.org>
---
 meta/recipes-core/busybox/busybox.inc       |   80 ++++++++++++++++++++++++++-
 meta/recipes-core/busybox/busybox_1.18.4.bb |    2 +-
 2 files changed, 79 insertions(+), 3 deletions(-)

diff --git a/meta/recipes-core/busybox/busybox.inc 
b/meta/recipes-core/busybox/busybox.inc
index 86fbdae..b697e88 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -35,8 +35,85 @@ RRECOMMENDS_${PN} = "${PN}-syslog ${PN}-udhcpc"
 
 inherit cml1 update-rc.d
 
+# internal helper
+def busybox_cfg(feature, features, tokens, cnf, rem):
+       if type(tokens) == type(""):
+               tokens = [tokens]
+       rem.extend(['/^[# ]*' + token + '[ =]/d' for token in tokens])
+       if type(features) == type([]) and feature in features:
+               cnf.extend([token + '=y' for token in tokens])
+       else:
+               cnf.extend(['# ' + token + ' is not set' for token in tokens])
+
+# Map distro and machine features to config settings
+def features_to_busybox_settings(d):
+       cnf, rem = ([], [])
+       distro_features = bb.data.getVar('DISTRO_FEATURES', d).split()
+       machine_features = bb.data.getVar('MACHINE_FEATURES', d).split()
+       busybox_cfg('ipv6', distro_features, 'CONFIG_FEATURE_IPV6', cnf, rem)
+       busybox_cfg('largefile', distro_features, 'CONFIG_LFS', cnf, rem)
+       busybox_cfg('largefile', distro_features, 
'CONFIG_FDISK_SUPPORT_LARGE_DISKS', cnf, rem)
+       busybox_cfg('nls',  distro_features, 'CONFIG_LOCALE_SUPPORT', cnf, rem)
+       busybox_cfg('ipv4', distro_features, 'CONFIG_FEATURE_IFUPDOWN_IPV4', 
cnf, rem)
+       busybox_cfg('ipv6', distro_features, 'CONFIG_FEATURE_IFUPDOWN_IPV6', 
cnf, rem)
+       busybox_cfg('kernel24', machine_features, 'CONFIG_FEATURE_2_4_MODULES', 
cnf, rem)
+       return "\n".join(cnf), "\n".join(rem)
+
+# X, Y = ${@features_to_uclibc_settings(d)}
+# unfortunately doesn't seem to work with bitbake, workaround:
+def features_to_busybox_conf(d):
+       cnf, rem = features_to_busybox_settings(d)
+       return cnf
+def features_to_busybox_del(d):
+       cnf, rem = features_to_busybox_settings(d)
+       return rem
+
+configmangle = '/CROSS_COMPILER_PREFIX/d; \
+               /CONFIG_EXTRA_CFLAGS/d; \
+               '
+OE_FEATURES := "${@features_to_busybox_conf(d)}"
+OE_DEL      := "${@features_to_busybox_del(d)}"
+DO_IPv4 := ${@base_contains('DISTRO_FEATURES', 'ipv4', 1, 0, d)}
+DO_IPv6 := ${@base_contains('DISTRO_FEATURES', 'ipv6', 1, 0, d)}
+
+python () {
+  if "${OE_DEL}":
+    bb.data.setVar('configmangle_append', "${OE_DEL}" + "\n", d)
+  if "${OE_FEATURES}":
+    bb.data.setVar('configmangle_append',
+                   "/^### DISTRO FEATURES$/a\\\n%s\n\n" %
+                   ("\\n".join((bb.data.expand("${OE_FEATURES}", 
d).split("\n")))),
+                   d)
+  bb.data.setVar('configmangle_append',
+                 "/^### CROSS$/a\\\n%s\n" %
+                  
("\\n".join(["CONFIG_CROSS_COMPILER_PREFIX=\"${TARGET_PREFIX}\"",
+                              "CONFIG_EXTRA_CFLAGS=\"${CFLAGS}\""
+                        ])
+                  ),
+                 d)
+}
+
+do_prepare_config () {
+       sed -e 's#@DATADIR@#${datadir}#g' \
+               < ${WORKDIR}/defconfig > ${S}/.config
+       sed -i -e '/CONFIG_STATIC/d' .config
+       echo "# CONFIG_STATIC is not set" >> .config
+       for i in 'CROSS' 'DISTRO FEATURES'; do echo "### $i"; done >> \
+               ${S}/.config
+       sed -i -e '${configmangle}' ${S}/.config
+       if test ${DO_IPv4} -eq 0 && test ${DO_IPv6} -eq 0; then
+         # disable networking applets
+         mv ${S}/.config ${S}/.config.oe-tmp
+         awk 'BEGIN{net=0}
+         /^# Networking Utilities/{net=1}
+         /^#$/{if(net){net=net+1}}
+         {if(net==2&&$0 !~ /^#/&&$1){print("# "$1" is not set")}else{print}}' \
+                 ${S}/.config.oe-tmp > ${S}/.config
+       fi
+}
+
 do_configure () {
-       install -m 0644 ${WORKDIR}/defconfig ${S}/.config
+       do_prepare_config
        cml1_do_configure
 }
 
@@ -184,4 +261,3 @@ pkg_prerm_${PN}-syslog () {
        update-alternatives --remove syslog-init syslog.${PN}
        update-alternatives --remove syslog-conf syslog.conf.${PN}
 }
-
diff --git a/meta/recipes-core/busybox/busybox_1.18.4.bb 
b/meta/recipes-core/busybox/busybox_1.18.4.bb
index a5080d5..a999490 100644
--- a/meta/recipes-core/busybox/busybox_1.18.4.bb
+++ b/meta/recipes-core/busybox/busybox_1.18.4.bb
@@ -1,5 +1,5 @@
 require busybox.inc
-PR = "r2"
+PR = "r3"
 
 SRC_URI = "http://www.busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball 
\
            file://udhcpscript.patch \
-- 
1.7.3.4


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