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what is the g++ option to build ia64 binaries

Matthew Flaschen
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Avinash
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  • Did you try `man gcc` or an equivalent? You haven't even given us the version you are on (which is probably not an issue to be worried of here). There is an entire page on IA6: See http://gcc.gnu.org/onlinedocs/gcc-4.5.0/gcc/IA_002d64-Options.html#IA_002d64-Options – dirkgently Sep 01 '10 at 15:26
  • Which OS are you compiling on, which OS are you compiling for ? – nos Sep 01 '10 at 15:39
  • gcc version is Reading specs from /opt/sfw/lib/gcc/i386-pc-solaris2.10/3.4.2/specs Configured with: ../gcc-3.4.2/configure --prefix=/opt/sfw --with-ld=/usr/ccs/bin/ld --with-gnu-as --with-as=/opt/sfw/bin/gas --enable-shared --disable-libgcj Thread model: posix gcc version 3.4.2 – Avinash Sep 01 '10 at 19:14

2 Answers2

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You have GCC configured on and for Solaris/i386. You can't build ia64 binaries using this build of GCC.

Your best bet is to ask for an account on ia64 machine with GCC already installed on it, and build natively on that machine.

If that isn't possible, you must build GCC as a cross-compiler, targeting ia64-gnu-linux or ia64-hp-hpux (both are ia64, which one do you actually need?). See GCC documentation for how to build GCC as a cross-compiler; be prepared for extreme pain.

Employed Russian
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Try the -mtune option. The default value probably is itanium2 so you will need to change it to itanium1 if you want something else. (This is from GCC 4.5 documentation.)

dirkgently
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  • Reading specs from /opt/sfw/lib/gcc/i386-pc-solaris2.10/3.4.2/specs Configured with: ../gcc-3.4.2/configure --prefix=/opt/sfw --with-ld=/usr/ccs/bin/ld --with-gnu-as --with-as=/opt/sfw/bin/gas --enable-shared --disable-libgcj Thread model: posix gcc version 3.4.2 – Avinash Sep 01 '10 at 19:15