Tcl Source Code

Presumably related to the change to a
configure script created by autoconf-2.57.

On my SuSE Linux 7.3 system (x86), I see:

$ cd tcl/unix
$ ./configure
...
checking system version (for dynamic loading)...
Linux-2.4.10-4GB
checking for dlopen in -ldl... no
checking for ar... ar
checking dld.h usability... no
checking dld.h presence... no
checking for dld.h... no
Can't figure out how to do dynamic loading or shared
libraries
on this system.
...

The resulting Makefile cannot build tclsh (linker
complains about -lsocket) and then a `make clean`
blows away all files in tcl/unix/dltest (because
SHLIB_SUFFIX is the empty string)

Contrast with output from the autoconf-2.13 generated
tcl8.4/unix/configure script:

$ cd tcl8.4/unix
$ ./configure
...
checking system version (for dynamic loading)...
Linux-2.4.10-4GB
checking for dlopen in -ldl... yes
...

which builds and tests fine.

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Fixed by moving the test into the BeOS block.
Just an FYI, you can't downgrade to autoconf 2.52,
I know it seems easier but the all the configure scripts
need to be generated with the same version of autoconf,
and 2.57 is the current release.

File Added - 46444: 713128.patch

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This patch fixes the problems I'm having.

I suspect it will break things on BeOS,
since it was the BeOS support patch
that broke things for me.

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relevant lines from config.log:

configure:10596: checking system version (for dynamic loading)
configure:10616: result: Linux-2.4.10-4GB
configure:10624: checking for dlopen in -ldl
configure:10655: gcc -pipe -o conftest    conftest.c -ldl  
-lbind -lsocket >&5
/usr/i486-suse-linux/bin/ld: cannot find -lsocket
collect2: ld returned 1 exit status
configure:10658: $? = 1
configure: failed program was:
...

so the root of the problem is an attempt to
link against a -lsocket library that does not
exist.