steve crosby wrote:
gcc -dumpspecs | sed -e 's@ /lib/ld-linux.so.2@
/tools/lib/[EMAIL PROTECTED]' > tempfile
gcc -specs=tempfile
I'm not sure that does what you think it does. If I'm reading the
manual[1] correctly, the -specs flag is a runtime option to control what
specs the compiler uses for that particular invocation. It overrides
the default specs that would normally be used, but I don't think it
updates those default specs. Here's the relevant snippet:
"-specs=file
Process file after the compiler reads in the standard specs file,
in order to override the defaults that the gcc driver program uses when
determining what switches to pass to cc1, cc1plus, as, ld, etc. More
than one -specs=file can be specified on the command line, and they are
processed in order, from left to right."
Therefore, in order to change GCC's default specs file, I still think we
need to 1) dump them (as gcc-4.x no longer installs a specs file) 2)
change the relevant specs and 3) Place the updated specs file in
whatever directory GCC searches for its default specs in. So, the
incantation for gcc-4 becomes:
SPECFILE=`gcc -print-file-name=specs` &&
gcc -dumpspecs > $SPECFILE &&
sed '[EMAIL PROTECTED]/lib/ld-linux.so.2@/tools&@g' \
$SPECFILE > tempspecfile &&
mv -f tempspecfile $SPECFILE &&
unset SPECFILE
For 3.4.x compilers, we can remove the dumpspecs call and change the '^'
to a ' ' in the sed.
Regards,
Matt.
[1]http://gcc.gnu.org/onlinedocs/gcc-4.0.1/gcc/Directory-Options.html#Directory-Options
--
http://linuxfromscratch.org/mailman/listinfo/lfs-dev
FAQ: http://www.linuxfromscratch.org/faq/
Unsubscribe: See the above information page
