[yocto] Cannot update dhcpcd receipe from v6.11.5 to v7.x.x

[Stefano Cappa]

Hi!
I'm using Yocto THUD and I'm trying to update dhcpcd
(meta-openembedded/meta-networking) from 6.11.5 to 7.0.8 (
https://roy.marples.name/downloads/dhcpcd/dhcpcd-7.0.8.tar.xz) only to do
some experiments, however I think that it's correct to migrate to the new
version.

I modified the recipe to download version 7.0.8, but when it's building it
throws this error:

ERROR: dhcpcd-7.0.8-r0 do_configure: configure failed
ERROR: dhcpcd-7.0.8-r0 do_configure: Function failed: do_configure (log
file is located at
/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/temp/log.do_configure.90966)
ERROR: Logfile of failure stored in:
/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/temp/log.do_configure.90966
Log data follows:
| DEBUG: SITE files ['endian-little', 'bit-32', 'arm-common', 'arm-32',
'common-linux', 'common-glibc', 'arm-linux', 'arm-linux-gnueabi', 'common']
| DEBUG: Executing shell function autotools_preconfigure
| DEBUG: Shell function autotools_preconfigure finished
| DEBUG: Executing python function autotools_aclocals
| DEBUG: SITE files ['endian-little', 'bit-32', 'arm-common', 'arm-32',
'common-linux', 'common-glibc', 'arm-linux', 'arm-linux-gnueabi', 'common']
| DEBUG: Python function autotools_aclocals finished
| DEBUG: Executing shell function do_configure
| NOTE: Running ./configure  --build=x86_64-linux
--host=arm-poky-linux-gnueabi    --target=arm-poky-linux-gnueabi
--prefix=/usr    --exec_prefix=/usr    --bindir=/usr/bin
--sbindir=/usr/sbin    --libexecdir=/usr/libexec    --datadir=/usr/share
--sysconfdir=/etc    --sharedstatedir=/com    --localstatedir=/var
--libdir=/usr/lib    --includedir=/usr/include
--oldincludedir=/usr/include    --infodir=/usr/share/info
--mandir=/usr/share/man    --disable-silent-rules
--disable-dependency-tracking
--with-libtool-sysroot=/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/recipe-sysroot
--enable-ipv4 --disable-static  --enable-ipv6 --with-udev
| configure args: --build=x86_64-linux --host=arm-poky-linux-gnueabi
--target=arm-poky-linux-gnueabi --prefix=/usr --exec_prefix=/usr
--bindir=/usr/bin --sbindir=/usr/sbin --libexecdir=/usr/libexec
--datadir=/usr/share --sysconfdir=/etc --sharedstatedir=/com
--localstatedir=/var --libdir=/usr/lib --includedir=/usr/include
--oldincludedir=/usr/include --infodir=/usr/share/info
--mandir=/usr/share/man --disable-silent-rules
--disable-dependency-tracking
--with-libtool-sysroot=/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/recipe-sysroot
--enable-ipv4 --disable-static --enable-ipv6 --with-udev
| ./configure: WARNING: unknown option --exec_prefix
| ./configure: WARNING: unknown option --sharedstatedir
| ./configure: WARNING: unknown option --oldincludedir
| ./configure: WARNING: unknown option --with-libtool-sysroot
| ./configure: WARNING: unknown option --with-udev
| Deriving operating system from ... arm-poky-linux-gnueabi
| Configuring dhcpcd for ... linux
| Enabling INET support
| Enabling ARP support
| Enabling ARPing support
| Enabling IPv4LL support
| Enabling INET6 support
| Enabling DHCPv6 support
| Enabling Authentication
| Using compiler .. arm-poky-linux-gnueabi-gcc  -march=armv7ve -mthumb
-mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7
 --sysroot=/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/recipe-sysroot
| arm-poky-linux-gnueabi-gcc  -march=armv7ve -mthumb -mfpu=neon
-mfloat-abi=hard -mcpu=cortex-a7
 --sysroot=/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/recipe-sysroot
does not create executables
| NOTE: The following config.log files may provide further information.
| NOTE:
/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/dhcpcd-7.0.8/config.log
| ERROR: configure failed
| WARNING: exit code 1 from a shell command.
| ERROR: Function failed: do_configure (log file is located at
/home/ks89/git/poky/build/tmp/work/cortexa7t2hf-neon-poky-linux-gnueabi/dhcpcd/7.0.8-r0/temp/log.do_configure.90966)

Also, the content of "config.log" is :
*       cc1: error: include location "/usr/include" is unsafe for
cross-compilation [-Werror=poison-system-directories]*
       cc1: all warnings being treated as errors

I compared configure files of versions 6.11.5 and 7.0.8 and they are quite
similar with some additions, in particular "-I|--includedir)
INCLUDEDIR="$INCLUDEDIR${INCLUDEDIR:+ }-I$var";;".

In not an expert of autotools and so on, so I don't know how to fix this.
Do you have suggestions?

I added also Khem Raj, but I'm not sure if it's the maintainer of dhcpcd
recipe.

Thank u.
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