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Date: Fri, 8 Sep 2000 01:27:40 +0100
From: "Gary V. Vaughan" <gvv AT techie DOT com>
To: Earnie Boyd <earnie_boyd AT yahoo DOT com>
Cc: Robert Collins <robert DOT collins AT itdomain DOT com DOT au>, cygwin AT sources DOT redhat DOT com
Subject: Re: libtool
Message-ID: <20000908012740.A26790@demon.co.uk>
References: <20000907133430 DOT 25505 DOT qmail AT web119 DOT yahoomail DOT com> <20000907185550 DOT O7695 AT demon DOT co DOT uk>
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In-Reply-To: <20000907185550.O7695@demon.co.uk>; from gvv@techie.com on Thu, Sep 07, 2000 at 06:55:50PM +0100
X-Operating-System: Linux oranda 2.2.13

On Thu, Sep 07, 2000 at 06:55:50PM +0100, Gary V. Vaughan wrote:
> 
> I'll upgrade to cygwin 1.1.4 and post some traces later tonight in the
> hope that someone can make more sense of them than I can.

I updated to the very latest cygwin stuff using the web setup.exe, and
tried to compile a program that I know definitely built on my b20.1
installation a few weeks back (a prerelease of GNU m4 1.5, available
from my website).  It uses link time and runtime (LoadLibrary()) dll's
and is a pretty good stress test for libtool's dll support.

To my surprise, it worked!  Here is a part of the log around where the
build is compiling the libm4.la dll:

.
.
.
/bin/sh ../libtool --mode=link gcc  -g -O2 -no-undefined -export-dynamic @DLLDFLAGS@ -o libm4.la -rpath /usr/local/lib  list.lo m4module.lo error.lo obstack.lo regex.lo xmalloc.lo xstrdup.lo
rm -fr .libs/libm4.la .libs/libm4.* .libs/libm4.*
generating symbol list for `libm4.la'
dlltool --export-all --exclude-symbols DllMain AT 12,_cygwin_dll_entry AT 12,_cygwin_noncygwin_dll_entry AT 12,DllMainCRTStartup AT 12,DllEntryPoint AT 12 --output-def .libs/libm4-0-0-0.dll-def  list.lo m4module.lo error.lo obstack.lo regex.lo xmalloc.lo xstrdup.lo 
sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < .libs/libm4-0-0-0.dll-def > .libs/libm4.exp
echo EXPORTS > .libs/libm4-0-0-0.dll-def
_lt_hint=1; \
cat .libs/libm4.exp | while read symbol; do \
  set dummy $symbol; \
  case $# in \
    2) echo " $2 @ $_lt_hint ; " >> .libs/libm4-0-0-0.dll-def ;; \
    *) echo " $2 @ $_lt_hint $3 ; " >> .libs/libm4-0-0-0.dll-def ;; \
  esac; \
  _lt_hint=`expr 1 + $_lt_hint`; \
done
gcc -Wl,--base-file,.libs/libm4-0-0-0.dll-base -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry AT 12 -o .libs/libm4-0-0-0.dll list.lo m4module.lo error.lo obstack.lo regex.lo xmalloc.lo xstrdup.lo  
dlltool --as=as --dllname libm4-0-0-0.dll --exclude-symbols DllMain AT 12,_cygwin_dll_entry AT 12,_cygwin_noncygwin_dll_entry AT 12,DllMainCRTStartup AT 12,DllEntryPoint AT 12--def .libs/libm4-0-0-0.dll-def --base-file .libs/libm4-0-0-0.dll-base--output-exp .libs/libm4-0-0-0.dll-exp
gcc -Wl,--base-file,.libs/libm4-0-0-0.dll-base .libs/libm4-0-0-0.dll-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry AT 12 -o .libs/libm4-0-0-0.dll  list.lo m4module.lo error.lo obstack.lo regex.lo xmalloc.lo xstrdup.lo  
dlltool --as=as --dllname libm4-0-0-0.dll --exclude-symbols DllMain AT 12,_cygwin_dll_entry AT 12,_cygwin_noncygwin_dll_entry AT 12,DllMainCRTStartup AT 12,DllEntryPoint AT 12  --def .libs/libm4-0-0-0.dll-def --base-file .libs/libm4-0-0-0.dll-base --output-exp .libs/libm4-0-0-0.dll-exp
gcc .libs/libm4-0-0-0.dll-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry AT 12 -o .libs/libm4-0-0-0.dll  list.lo m4module.lo error.lo obstack.lo regex.lo xmalloc.lo xstrdup.lo
creating libm4.la
.
.
.

Cheers,
	Gary.
	
p.s.  I think the current cvs HEAD of libtool is broken wrt cygwin
      right now.
      
p.p.s.  the version of getopts linked by the system is subtly broken
        and causes this m4 build to fail most of it's tests due to
	misparsing of the command line.  Linking it with the getopt
	files in the distribution works fine, and the build passes all
	tests. 
-- 
  ___              _   ___   __              _         mailto: gvv AT techie DOT com
 / __|__ _ _ ___ _| | / / | / /_ _ _  _ __ _| |_  __ _ ___       gary AT gnu DOT org 
| (_ / _` | '_|// / |/ /| |/ / _` | || / _` | ' \/ _` | _ \
 \___\__,_|_|\_, /|___(_)___/\__,_|\_,_\__, |_||_\__,_|//_/
home page:  /___/                      /___/                  gpg public key:
http://www.oranda.demon.co.uk           http://www.oranda.demon.co.uk/key.asc

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