arm-elf-binutils @2.21.51.0.9 error: warning: declaration of 'link_info' shadows a global declaration"

[smbmacportstrac@…]

Build Error 10.5.8 PowerPC Xcode 3.1.4 buildmakejobs 4 configureccache yes

:info:build ccache /usr/bin/gcc-4.0 -DHAVE_CONFIG_H -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_
rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld  -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld -
I../bfd -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/../bfd -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/../include  -pipe -O2 -arch ppc -DENABLE_PLUGINS -DLOCALEDIR="\"/opt/local/share/locale\""  -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Werror -pipe -O2 -arch ppc -MT ldlang.o -MD -MP -MF .deps/ldlang.Tpo -c -o ldlang.o /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/ldlang.c
...
:info:build cc1: warnings being treated as errors
:info:build In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/ldlang.c:45:
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/../bfd/libbfd.h:2292: warning: declaration of 'link_info' shadows a global declaration
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_cross_arm-elf-binutils/work/binutils-2.21.51.0.9/ld/ldmain.h:43: warning: shadowed declaration is here

[jmroot (Joshua Root)]

Please remember to preview and use WikiFormatting.

[raimue (Rainer Müller)]

I don't have any powerpc to test this. I updated the arm-elf-binutils port to binutils 2.21.52.0.2 in r79789.

Please run selfupdate and try again.

[smbmacportstrac@…]

2.21.52.0.2 fails at the same spot in the same way.

​http://comments.gmane.org/gmane.comp.gnu.binutils/51213

It looks like a solution is to use a newer version of gcc, or configure with --disable-werror.

if [powerpc, xcode3.0.4] then    # how do you do this in MacPorts?
configure.args-append --disable-werror
fi

# Or require gcc-4.2 instead of gcc-4.0 in Xcode 3.0.4.
if [powerpc, xcode3.0.4] then    # how do you do this in MacPorts?
configure.cc        /usr/bin/gcc-4.2
fi

The configure.args-append seems to fix the problem. However, I'm not sure if the built binutils are "correct" or not since I don't have a way to test the arm-elf-binutils tools at the moment.

[smbmacportstrac@…]

The configure.cc workaround also fixes the build problem. Would "configure.compiler gcc-4.2" be a better solution?

(Also, in the previous comment, 3.0.4 should be 3.1.4.)

[jmroot (Joshua Root)]

There shouldn't be any harm in using --disable-werror always. This is what it did before r69960 (which is why I assigned the ticket to whom I did).

[raimue (Rainer Müller)]

Added configure.args-append --disable-werror in r79798.