[Bug bootstrap/21544] New: xgcc fails (1rst stage) if binutils is not installed into --prefix directory

[jlm_devel at laposte dot net]

binutils are installed into /opt/x86_64/binutils
gcc is configured as follow :
--target=x86_64-pc-linux-gnu
--host=i686-pc-linux-gnu
--enable-__cxa_atexit
--prefix=/opt/x86_64/gcc/3.4.3
--with-local-prefix=/var/x86_64
--with-newlib
--without-headers                                               
--enable-languages=c                                               
--enable-symvers=gnu               
--disable-nls
--disable-multilib                                                 
--disable-shared                   
--enable-threads=no      

PATH is set to have /opt/x86_64/binutils/bin

configure find target x86_64 as ld....

but when compiling it fail when building libcrt.o

I straced xgcc and found that he was seeking for as and not x86_64-pc-linux-gnu-as

./xgcc -dumpmachine
x86_64-pc-linux-gnu

so xgcc is well configured to be a crosscompiler.... it simply don't use the
--target triplet prefix into itself.....

strace shows that xgcc only seek for as into -B directories that depends on
--prefix.... the issue is that I want to have several gcc installed concurently
(to have the choice, some source don't support recent gcc.... so I still have to
 have older version installed)

xgcc should execlp/execvp as a last resort ie should contain 
#idef TARGET
#define TARGET_AS TARGET##-as
#else
#define TARGET_AS as
#endif

xeclp(TARGET_AS,...,...);


Best Regards,
JLM

-- 
           Summary: xgcc fails (1rst stage) if binutils is not installed
                    into --prefix directory
           Product: gcc
           Version: 3.3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jlm_devel at laposte dot net
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21544