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From:	"Ralf Habacker" <Ralf DOT Habacker AT freenet DOT de>
To:	<cygwin-apps AT cygwin DOT com>, <binutils AT sources DOT redhat DOT com>
Subject:	RE: cygwin ld import library issue fix (removing unused "_nm_" symbols)
Date:	Thu, 25 Apr 2002 21:14:56 +0200
Message-ID:	<000201c1ec8d$7c7daf00$625d07d5@BRAMSCHE>
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> On Thu, Apr 25, 2002 at 01:32:47PM +0200, Ralf Habacker wrote:
> >> Hi Danny,
> >>
> >> > Yes, this looks very nice, but does it works against current CVS?
> >> This patch is a minor change, which could be reviewed easy, but I have got
> >> trouble using the current cvs head (binutils 2-12.xx) release from
> >> sources.redhat.com.>
> >> It produces undefined symbols compiling dll/apps and that means
> cygwin support
> >> seems to be broken. Because I hadn't enough time to check this, ....
> >
> >I've taken a look on the cvs archive to verify this. Are I'm right using the
> >cygnus_cvs_20020108_pre tag ?
>
> Why are you using a tag at all?  Your patches should be against the binutils
> trunk.

I have updated the patch. But the problem still is as I've said. The current ld
cvs head release does not work !!
I have build a simple lib and an app (without my patches) and the result is an
undefined, either for functions or for auto-imported data.  Test case is
appended.
Can anybody tell me which cvs version is the last stable ? I have tried to
checkout binutils with date 2001/12/31, but got compiling errors.


$ make dll.dll client.exe
gawk -f dll.awk >dll.cc
g++     -c -o dll.o dll.cc
g++  --shared dll.o -o dll.dll -Wl,--out-implib,libdll.a
Creating library file: libdll.a
g++     -c -o client.o client.cc
g++ -o client.exe client.o -v -Wl,--enable-auto-import  -L. -ldll #-ldll2
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/specs
gcc version 2.95.3-5 (cygwin special)

/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/collect2.exe -Bdynamic --dll-search-pre
fix=cyg -o client.exe /usr/lib/crt0.o -
L. -L/usr/local/lib -L/usr/lib -L/usr/lib/w32api -L/usr/lib/gcc-lib/i686-pc-cygw
in/2.95.3-5 -L/usr/lib/gcc-lib/i686-pc-c
ygwin/2.95.3-5/../../../../i686-pc-cygwin/lib
client.o --enable-auto-import -ldll -lstdc++ -lgcc -lcygwin -luser32 -lker
nel32 -ladvapi32 -lshell32 -lgcc
client.o(.text+0x48):client.cc: undefined reference to `A::printfunc0000(void)'
client.o(.text+0x4d):client.cc: undefined reference to `A::printfunc0001(void)'
client.o(.text+0x52):client.cc: undefined reference to `A::printfunc0002(void)'
client.o(.text+0x57):client.cc: undefined reference to `A::printfunc0003(void)'
client.o(.text+0x5c):client.cc: undefined reference to `A::printfunc0004(void)'
client.o(.text+0x64):client.cc: undefined reference to `var0000'
client.o(.text+0x7a):client.cc: undefined reference to `var0001'
client.o(.text+0x90):client.cc: undefined reference to `var0002'
client.o(.text+0xa6):client.cc: undefined reference to `var0003'
client.o(.text+0xbc):client.cc: undefined reference to `var0004'
collect2: ld returned 1 exit status
make: *** [client.exe] Error 1

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