I am trying to compile 32bit perl on 64 bit redhat Enterprise Linux 4
running. The gcc we have in the box is also 64 bit. The reason I need
to compile 32 bit perl is because we were told some home-grown
modules
need 32bit perl.


I tried a few ways, but none seemed working.


After unpack the perl 5.10.0
1) setarch i386 ./Configure
The perl was compiled successfully. But the executable is still 64
bit


2) Configure
When ptompted for the architecture, answered with "i386"
The perl was compiled successfully. But the executable is still
64 bit

3) Configure -des -Dcc="gcc -m32"
get the following error:

gcc -m32 -o try -O2 -fno-strict-aliasing -pipe -I/usr/local/
include -L/usr/local/lib try.c -lnsl -lgdbm -ldb -ldl -lm -lcrypt -
lutil -lc
./try

and I got the following output:

/usr/bin/ld: skipping incompatible /usr/lib64/libgdbm.so when
searching for -lgdbm
/usr/bin/ld: skipping incompatible /usr/lib64/libgdbm.a when searching
for -lgdbm
/usr/bin/ld: cannot find -lgdbm
collect2: ld returned 1 exit status
I can't compile the test program.
You have a BIG problem. Shall I abort Configure [y]
Ok. Stopping Configure.

Do I have install 32bit gcc to compile? Can 64bit gcc and 32bit gcc co-
exist in the box?

Thanks.

Finally I figured it out.

Actually the 3rd method would work . The error I got was the 32bit
librarie files /usr/lib/libgdbm.so and /usr/lib/libdb.so are needed
for the compilation. The 64 bit version will not work. After I
installed the gdbm-devel and db4-devel, the compilation was good the
generated perl executable is ELF-32, which is what we are looking for.

Thanks.


On Aug 18, 10:21*am, BILL wrote:
> I am trying to compile 32bit perl on 64 bit redhat Enterprise Linux 4
> running. The gcc we have in the box is also 64 bit. The reason I need
> to compile 32 bit perl is because we were told some home-grown
> modules
> need 32bit perl.
>
> I tried a few ways, but none seemed working.
>
> After unpack the perl 5.10.0
> 1) setarch i386 ./Configure
> * * The perl was compiled successfully. But the executable is still 64
> bit
>
> 2) Configure
> * * When ptompted for the architecture, answered with "i386"
> * * *The perl was compiled successfully. But the executable is still
> 64 bit
>
> 3) Configure -des -Dcc="gcc -m32"
> * * get the following error:
>
> * * * * gcc -m32 -o try -O2 -fno-strict-aliasing -pipe -I/usr/local/
> include -L/usr/local/lib try.c -lnsl -lgdbm -ldb -ldl -lm -lcrypt -
> lutil -lc
> * * * * *./try
>
> and I got the following output:
>
> /usr/bin/ld: skipping incompatible /usr/lib64/libgdbm.so when
> searching for -lgdbm
> /usr/bin/ld: skipping incompatible /usr/lib64/libgdbm.a when searching
> for -lgdbm
> /usr/bin/ld: cannot find -lgdbm
> collect2: ld returned 1 exit status
> I can't compile the test program.
> You have a BIG problem. *Shall I abort Configure [y]
> Ok. *Stopping Configure.
>
> Do I have install 32bit gcc to compile? Can 64bit gcc and 32bit gcc co-
> exist in the box?
>
> Thanks.