The newly-stable ruby-2.1 fails to compile on my Raspberry Pi (Linux ansiblePiPrime 3.12.19+ #1 PREEMPT Sat May 10 11:38:35 EDT 2014 armv6l BCM2708 GNU/Linux). armv6j-hardfloat-linux-gnueabi-gcc -O2 -pipe -march=armv6j -mfpu=vfp -mfloat-abi=hard -fno-strict-aliasing -fPIC -L. -Wl,-O1 -Wl,--as-needed -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,--no-undefined -fstack-protector -Wl,-O1 -Wl,--as-needed main.o dmydln.o miniinit.o miniprelude.o array.o bignum.o class.o compar.o complex.o dir. o dln_find.o encoding.o enum.o enumerator.o error.o eval.o load.o proc.o file.o gc.o hash.o inits.o io.o marshal.o math.o node.o numeric.o object.o pack.o parse.o process .o random.o range.o rational.o re.o regcomp.o regenc.o regerror.o regexec.o regparse.o regsyntax.o ruby.o safe.o signal.o sprintf.o st.o strftime.o string.o struct.o time .o transcode.o util.o variable.o version.o compile.o debug.o iseq.o vm.o vm_dump.o vm_backtrace.o vm_trace.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline. o strlcpy.o strlcat.o setproctitle.o addr2line.o dmyext.o -lpthread -lgmp -ldl -lcrypt -lm -o miniruby bignum.o: In function `bary_pack': bignum.c:(.text+0x4198): undefined reference to `__builtin_bswap16' bignum.c:(.text+0x427c): undefined reference to `__builtin_bswap16' bignum.o: In function `bary_unpack_internal': bignum.c:(.text+0x48a4): undefined reference to `__builtin_bswap16' collect2: error: ld returned 1 exit status Makefile:203: recipe for target 'miniruby' failed make: *** [miniruby] Error 1 * ERROR: dev-lang/ruby-2.1.6-r1::gentoo failed (compile phase): * emake failed * * If you need support, post the output of `emerge --info '=dev-lang/ruby-2.1.6-r1::gentoo'`, * the complete build log and the output of `emerge -pqv '=dev-lang/ruby-2.1.6-r1::gentoo'`. * The complete build log is located at '/var/tmp/portage/dev-lang/ruby-2.1.6-r1/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-lang/ruby-2.1.6-r1/temp/environment'. * Working directory: '/var/tmp/portage/dev-lang/ruby-2.1.6-r1/work/ruby-2.1.6' * S: '/var/tmp/portage/dev-lang/ruby-2.1.6-r1/work/ruby-2.1.6'
Created attachment 408310 [details] build.log
Created attachment 408312 [details] emerge --info
Note that this emerge --info was taken after I removed the ruby21 value in RUBY_TARGETS and re-masked ruby21 (to work around this build failure).
@arm: any advice on how to handle this?
(In reply to Hans de Graaff from comment #4) > @arm: any advice on how to handle this? I don't have armv6 only armv7. __builtin_bswap16() should be provided by <linux/swab.h>. make sure that file is included in bignum.c and that __HAVE_BUILTIN_BSWAP16__ gets defined somewhere.
(In reply to Anthony Basile from comment #5) > (In reply to Hans de Graaff from comment #4) > > @arm: any advice on how to handle this? > > I don't have armv6 only armv7. __builtin_bswap16() should be provided by > <linux/swab.h>. make sure that file is included in bignum.c and that > __HAVE_BUILTIN_BSWAP16__ gets defined somewhere. I should add that I'm assuming this is a glibc system from your toolchain tuple in comment #0. but just in case, if you're using uclibc, note that swab.h has problems in uclibc. I sent the fix upstream and it was accepted by uclibc-ng. the original uclibc is somewhat dead these days.
Could you try with ruby 2.1.9 instead? 2.1.6-r1 is no longer available and this problem may have been fixed in the meantime.
