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When IPv6 support is disabled, this recipe mis-configures ruby so that it end up non-working: --enable-wide-getaddrinfo instructs ruby to re-implement the standard getaddinfo(), but IPv6 support is still automatically detected via ext/socket/extconf.rb independently of that flag. To re-implement getaddrinfo(), ruby uses the obsolete getipnodebyaddr() and getipnodebyname() functions - i.e. according to the man-page, glibc provided those only in glibc 2.1.91-95; and of course compilation fails. [1] Switch to ruby's standard --enable-ipv6= configure options to make the build work without warnings, and ruby work at runtime as well. [1] Compilation and linking actually succeed, albeit with a warning regarding implicit declaration / unresolved symbols. The error is only obvious at runtime due to the unresolved symbols... (From OE-Core rev: 6ff71dd308b1611df7a8ea811a79b7cb884c99e9) Signed-off-by: André Draszik <andre.draszik@jci.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.