Re: Problem configuring libffi when trying to cross-compile

[Dan Witte <dwitte at mozilla dot com>]

Turns out this isn't a libffi problem, but was happening immediately after said configure had run. Nothing to see here; sorry for the noise!

Dan.


----- "Boris Zbarsky" <bzbarsky@MIT.EDU> wrote:

> I was recently trying to cross-compile Mozilla (which uses libffi for
> 
> its js-ctypes module); compiling on a Linux host and creating Mac 
> binaries.  See http://weblogs.mozillazine.org/bz/archives/020363.html
> 
> for the steps for setting up the toolchain and such.
> 
> During the configure step for libffi, the build fails.  The relevant 
> configure call looks like this:
> 
> mozilla/js/ctypes/libffi/configure  --disable-shared --enable-static 
> --disable-raw-api --enable-debug --with-pic 
> --build=x86_64-unknown-linux-gnu --host=i686-apple-darwin9 
> --target=i686-apple-darwin9 
> --cache-file=../../../js/ctypes/libffi/config.cache 
> --srcdir=/home/bzbarsky/mozilla/mac-test/mozilla/js/ctypes/libffi
> 
> (I tried various permutations of target and host, but they all had the
> 
> same effect).  The failure is:
> 
>    config.status: executing src commands
>    nsinstall.c
>    pathsub.c
>    ld: unknown option: --eh-frame-hdr
>    collect2: ld returned 1 exit status
> 
> The --eh-frame-hdr option is not in fact supported by Apple's ld
> (which 
> is not a gnu ld).
> 
> Other possibly-relevant output from the configure step:
> 
>    checking whether we are cross compiling... yes
>    checking whether we are using the GNU C compiler... yes
>    checking if the linker (/Developer/usr/bin/ld) is GNU ld... no
>    configure: WARNING: using cross tools not prefixed with host
> triplet
> 
> If someone wants to try reproducing (and I do apologize for the very 
> non-minimal steps to reproduce), the mozconfig file I'm using is 
> attached, as well as a patch to mozilla's toplevel configure that is 
> needed to make sure libffi's configure is running independently of the
> 
> toplevel one.
> 
> I'm also happy to run whatever people want me to run locally to help 
> sort this out.
> 
> -Boris