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Subject:	?"undefined reference to rl_event_hook"
To:	cygwin AT cygwin DOT com
From:	John DOT Velman AT HSC DOT com
Date:	Wed, 9 May 2001 13:12:48 -0700
Message-ID:	<OFF8BAC640.D8AC7A9A-ON88256A47.006E4C36@hughes.com>
X-MIMETrack:	Serialize by Router on MTA00/HUGHES(Release 5.0.5 |September 22, 2000) at
	05/09/2001 01:12:49 PM
MIME-Version:	1.0

I'm out of my depth here --

I'm trying to compile swiprolog.   Everything seems
to compile, but at the link stage the following results:

----
gcc  -o pl -Lrc pl-atom.o pl-wam.o pl-stream.o pl-error.o pl-arith.o pl-bag.o pl
-comp.o pl-rc.o pl-dwim.o pl-ext.o pl-file.o pl-flag.o pl-fmt.o pl-funct.o pl-gc
.o pl-glob.o pl-itf.o pl-list.o pl-load.o pl-modul.o pl-op.o pl-os.o pl-prims.o
pl-pro.o pl-proc.o pl-prof.o pl-read.o pl-rec.o pl-rl.o pl-setup.o pl-sys.o pl-t
able.o pl-trace.o pl-util.o pl-wic.o pl-write.o pl-term.o pl-buffer.o pl-thread.
o pl-xterm.o pl-feature.o pl-ctype.o pl-main.o pl-extend.o frame.o -lrc -lreadli
ne -lncurses -lm
pl-rl.o(.text+0x1c1):pl-rl.c: undefined reference to `rl_event_hook'
pl-rl.o(.text+0x1ce):pl-rl.c: undefined reference to `rl_event_hook'
collect2: ld returned 1 exit status
make: *** [pl] Error 1

----

I checked, and libreadline.a is in /usr/lib, and of course a run
of nm -s libreadline.a shows entries for _rl_event_hook.

I just updated my cygwin installation this week (Monday?).

Any idea why the linker can't find it?  Or what to check?

(By the way, librc.a is a
library prepared as part of the compile, and it was apparently
build successfully).

Sorry if this isn't an appropriate Cygwin question.


John Velman


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