eglibc: rewritten tzselect as posix sh and move it to tzcode package

The problem is that this would cause bash installed to meta-toolchain,
the dependencies chain is:
meta-toolchain -> eglibc-utils -> bash
We should eliminate bash dependencies in anything core to a tiny system.

The eglibc-utils also provides eglibc-utils/usr/bin/zdump,
eglibc-utils/usr/bin/zic which all of them belonged to tzcode, so we
should split these three utils as tzcode package.

[YOCTO #6544]

(From OE-Core rev: f7f3a1fb3855799bb48708f32533e93e336e6995)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/eglibc/eglibc-2.19/timezone-re-written-tzselect-as-posix-sh.patch

@@ -0,0 +1,40 @@
+timezone: re-written tzselect as posix sh
+
+To avoid the bash dependency.
+
+Upstream-Status: Pending
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ timezone/Makefile     | 2 +-
+ timezone/tzselect.ksh | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/timezone/Makefile b/timezone/Makefile
+--- a/timezone/Makefile
++++ b/timezone/Makefile
+@@ -113,7 +113,7 @@ $(testdata)/Asia/Tokyo: asia $(zic-deps)
+ 
+ 
+ $(objpfx)tzselect: tzselect.ksh $(common-objpfx)config.make
+-	sed -e 's|/bin/bash|$(KSH)|g' \
++	sed -e 's|/bin/bash|/bin/sh|g' \
+ 	    -e '/TZDIR=/s|\$$(pwd)|$(zonedir)|' \
+ 	    -e '/TZVERSION=/s|see_Makefile|"$(version)"|' \
+ 	    -e '/PKGVERSION=/s|=.*|="$(PKGVERSION)"|' \
+diff --git a/timezone/tzselect.ksh b/timezone/tzselect.ksh
+index 9d70691..25f45a8 100644
+--- a/timezone/tzselect.ksh
++++ b/timezone/tzselect.ksh
+@@ -35,7 +35,7 @@ REPORT_BUGS_TO=tz@iana.org
+ 
+ # Specify default values for environment variables if they are unset.
+ : ${AWK=awk}
+-: ${TZDIR=`pwd`}
++: ${TZDIR=$(pwd)}
+ 
+ # Check for awk Posix compliance.
+ ($AWK -v x=y 'BEGIN { exit 123 }') </dev/null >/dev/null 2>&1
+-- 
+1.8.1.2
+

meta/recipes-core/eglibc/eglibc-package.inc

@@ -17,7 +17,7 @@ python __anonymous () {
 # Set this to zero if you don't want ldconfig in the output package
 USE_LDCONFIG ?= "1"
 
-PACKAGES = "${PN}-dbg catchsegv sln nscd ldd ${PN}-utils eglibc-thread-db ${PN}-pic libcidn libmemusage libsegfault ${PN}-pcprofile libsotruss ${PN} eglibc-extra-nss ${PN}-dev ${PN}-staticdev ${PN}-doc"
+PACKAGES = "${PN}-dbg catchsegv sln nscd ldd tzcode ${PN}-utils eglibc-thread-db ${PN}-pic libcidn libmemusage libsegfault ${PN}-pcprofile libsotruss ${PN} eglibc-extra-nss ${PN}-dev ${PN}-staticdev ${PN}-doc"
 
 # The ld.so in this eglibc supports the GNU_HASH
 RPROVIDES_${PN} = "glibc rtld(GNU_HASH)"
@@ -47,6 +47,7 @@ FILES_${PN}-dev += "${bindir}/rpcgen ${libdir}/*_nonshared.a ${base_libdir}/*_no
 FILES_${PN}-staticdev += "${libdir}/*.a ${base_libdir}/*.a"
 FILES_nscd = "${sbindir}/nscd*"
 FILES_${PN}-mtrace = "${bindir}/mtrace"
+FILES_tzcode = "${bindir}/tzselect ${sbindir}/zic ${sbindir}/zdump"
 FILES_${PN}-utils = "${bindir}/* ${sbindir}/*"
 FILES_${PN}-dbg += "${libexecdir}/*/.debug ${libdir}/audit/.debug"
 FILES_catchsegv = "${bindir}/catchsegv"
@@ -65,8 +66,9 @@ DESCRIPTION_eglibc-extra-nss = "eglibc: nis, nisplus and hesiod search services.
 SUMMARY_ldd = "print shared library dependencies"
 DESCRIPTION_ldd = "${bindir}/ldd prints shared library dependencies for each program or shared library specified on the command line."
 SUMMARY_${PN}-utils = "Miscellaneous utilities provided by eglibc"
-DESCRIPTION_${PN}-utils = "Miscellaneous utilities including getconf, iconf, locale, gencat, tzselect, zic, rpcinfo, ..."
+DESCRIPTION_${PN}-utils = "Miscellaneous utilities including getconf, iconf, locale, gencat, rpcinfo, ..."
 DESCRIPTION_libsotruss = "Library to support sotruss which traces calls through PLTs"
+DESCRIPTION_tzcode = "tzcode, timezone zoneinfo utils -- zic, zdump, tzselect"
 
 inherit libc-common multilib_header
 

meta/recipes-core/eglibc/eglibc_2.19.bb

@@ -27,6 +27,7 @@ SRC_URI = "http://downloads.yoctoproject.org/releases/eglibc/eglibc-${PV}-svnr25
            file://ppce6500-32b_slow_ieee754_sqrt.patch \
            file://grok_gold.patch \
            file://fix_am_rootsbindir.patch;striplevel=2 \
+           file://timezone-re-written-tzselect-as-posix-sh.patch \
           "
 SRC_URI[md5sum] = "197836c2ba42fb146e971222647198dd"
 SRC_URI[sha256sum] = "baaa030531fc308f7820c46acdf8e1b2f8e3c1f40bcd28b6e440d1c95d170d4c"