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Mac Forum / Programming / Mac Programming / September 2004Problem with OS X /usr/bin/as
Passing the --version argument to /usr/bin/as in OS X causes it to hang: % /usr/bin/as --version Apple Computer, Inc. version cctools-498.obj~14, GNU assembler version 1.38 <hangs...> Is there a fix for this? I came across this when trying to configure glibc as part of building a cross-compiler: % ../glibc-2.3.3/configure --prefix=/usr \ --build=powerpc-apple-darwin7.5.0 --host=mips-TiVo-linux \ --without-cvs --disable-sanity-checks \ --with-headers=/tivo/tmp/install/mips-TiVo-linux/include \ --enable-hacker-mode checking build system type... powerpc-apple-darwin7.5.0 checking host system type... mips-TiVo-linux-gnu <snip> checking whether /usr/bin/as is GNU as... yes checking whether ld is GNU ld... no checking for /usr/bin/as... /usr/bin/as checking version of /usr/bin/as... <hangs...> > Passing the --version argument to /usr/bin/as in OS X > causes it to hang: [quoted text clipped - 19 lines] > checking version of /usr/bin/as... > <hangs...> Two things: (a) you need to use -v rather than --version (b) you need to supply an EOF % /usr/bin/as -v < /dev/null Apple Computer, Inc. version cctools-525.obj~1, GNU assembler version 1.38 % Paul In article <r5ahhj-BFACD6.18283729092004@newssvr30-ext.news.prodigy.com>, > Passing the --version argument to /usr/bin/as in OS X > causes it to hang: [quoted text clipped - 19 lines] > checking version of /usr/bin/as... > <hangs...> It appears that the version of "as" included with OS X (10.3.5 here) _needs_ input and does not support the --version argument that's supposed to cancel that need. I would suggest that the proper way to execute the command for the behavior you want is: /usr/bin/as -v < /dev/null How does the configurator determine that it's GNU as? G  SignatureStandard output is like your butt. Everyone has one. When using a bathroom, they all default to going into a toilet. However, a person can redirect his "standard output" to somewhere else, if he so chooses. - Jeremy Nixon > How does the configurator determine that it's GNU as? Thanks for the rapid responses. Looking at line 3723 of glibc-2.3.3/configure shows that it is passing --version to as: | ac_prog_version=`$AS --version 2>&1 | sed -n 's/^.*GNU assembler.* \([0-9]*\.[0-9.]*\).*$/\1/p'` Inserting '< /dev/null' does the trick. Thanks. In article <r5ahhj-9AA660.19424629092004@newssvr30-ext.news.prodigy.com>, > > How does the configurator determine that it's GNU as? > [quoted text clipped - 6 lines] > > Inserting '< /dev/null' does the trick. Thanks. Glad it worked. The question I was asking would be a few lines up from where you were. I wasn't looking for the version command, but how it determined that it was looking at a GNU build before it even tried to get the version. The first line in what you posted: > <snip> > checking whether /usr/bin/as is GNU as... yes > checking whether ld is GNU ld... no > checking for /usr/bin/as... /usr/bin/as > checking version of /usr/bin/as... > <hangs...> SignatureStandard output is like your butt. Everyone has one. When using a bathroom, they all default to going into a toilet. However, a person can redirect his "standard output" to somewhere else, if he so chooses. - Jeremy Nixon > Passing the --version argument to /usr/bin/as in OS X > causes it to hang: [quoted text clipped - 4 lines] > > Is there a fix for this? First of all, in my case it produces an error (using bash): dune:~ iang$ /usr/bin/as --version /usr/libexec/gcc/darwin/ppc/as: I don't understand '-' flag! Apple Computer, Inc. version cctools-495.obj~4, GNU assembler version 1.38 But then "--version" is not a documented option so using "-v": dune:~ iang$ /usr/bin/as -v Apple Computer, Inc. version cctools-495.obj~4, GNU assembler version 1.38 Admittedly it appears to hang at that point, but in fact it is not really hung. The man page points out that if no files are specified it reads from stdin, so in fact it is just waiting for you to indicate EOF by typing ctrl-D. It seems that "-v" means "print version before starting assembly". Try this: dune:~ iang$ /usr/bin/as -v < /dev/null Apple Computer, Inc. version cctools-495.obj~4, GNU assembler version 1.38 dune:~ iang$ SignatureIan Gregory http://www.zenatode.org.uk/ian/ |
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