$Id: README.linux,v 1.2 2000/11/15 00:41:42 mpeppler Exp $

There are two possible problems with sybperl on linux.

The LANG or LC_ALL environment variable may be set to a value 
that has not been defined in the $SYBASE/locales/locales.dat file.
Depending on the situation this can cause sybperl to core dump on
startup. See http://www.mbay.net/~mpeppler/linux.html#q1.14.

The second problem affects certain versions of perl that have been
built with the Berkley-DB library linked in: There is a symbol
conflict between Berkeley DB 1.xx, the ndbm library and Sybase's
DB-Library. This means that you can't use the default perl version
that is installed on linux to build the Sybase::DBlib part of sybperl.

The solution is to rebuild perl without -ldb and -lndbm. I've done the 
following, although there are of course other ways of doing this:

Get the latest perl source from www.perl.com. You might as well
install the latest stable version of perl if you're going to do this,
aren't you?

Unpack, and then run (in the perl source directory):

	./Configure -ders -Dlibs="-lnsl -lgdbm -ldl -lm -lc -lposix -lcrypt"
	make
	make test

If all is well at this point, su to root, and

	make install

Now go to the sybperl source directory, and do 

	perl -V:libs

to verify that your perl binary is not referencing -ldb or -lndbm any
more. You can also do

	ldd `which perl`

which should give you something like

troll (6:55AM):456 > ldd `which perl`
        libnsl.so.1 => /lib/libnsl.so.1 (0x40007000)
        libgdbm.so.2 => /usr/lib/libgdbm.so.2 (0x4000d000)
        libdl.so.2 => /lib/libdl.so.2 (0x40013000)
        libm.so.6 => /lib/libm.so.6 (0x40017000)
        libc.so.6 => /lib/libc.so.6 (0x40030000)
        libcrypt.so.1 => /lib/libcrypt.so.1 (0x400d5000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x2aaaa000)

Now you are ready to build sybperl. Follow the directions in the
README, and remember to edit CONFIG and set SYBASE and EXTRA_LIBS
correctly. 

Michael