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Re: cygwin build problem with m4 HEAD
From: |
Ralf Wildenhues |
Subject: |
Re: cygwin build problem with m4 HEAD |
Date: |
Sun, 16 Oct 2005 11:46:28 +0200 |
User-agent: |
Mutt/1.5.9i |
Hi Eric,
* Eric Blake wrote on Fri, Sep 02, 2005 at 03:29:58PM CEST:
>
> I don't know if this is a bug in m4 or in libtool, but with the absolute
> latest CVS autoconf, automake, and libtool installed into /usr/local, and
> latest CVS m4 plus my patch to fix bootstrap
> (http://article.gmane.org/gmane.comp.gnu.m4.patches/229), m4 is failing to
> build on cygwin due to:
>
> /bin/sh ./libtool --tag=CC --mode=link gcc -O2 -pipe -no-undefined
> - -export-dynamic -o m4/libm4.la -rpath /usr/local/lib m4/builtin.lo
> m4/debug.lo m4/hash.lo m4/input.lo m4/m4.lo m4/macro.lo m4/module.lo
> m4/output.lo m4/path.lo m4/symtab.lo m4/syntax.lo m4/utility.lo
> gnu/libgnu.la -lltdl -lintl
> libtool: link: rm -fr m4/.libs/libm4.dll.a
> libtool: link: gcc -shared m4/.libs/builtin.o m4/.libs/debug.o
> m4/.libs/hash.o m4/.libs/input.o m4/.libs/m4.o m4/.libs/macro.o
> m4/.libs/module.o m4/.libs/output.o m4/.libs/path.o m4/.libs/symtab.o
> m4/.libs/syntax.o m4/.libs/utility.o -Wl,--whole-archive
> gnu/.libs/libgnu.a -Wl,--no-whole-archive /usr/lib/libltdl.dll.a
> /usr/lib/libintl.dll.a -L/usr/lib /usr/lib/libiconv.dll.a -o
> m4/.libs/cygm4-0.dll -Wl,--image-base=0x10000000
> - -Wl,--out-implib,m4/.libs/libm4.dll.a
> Creating library file: m4/.libs/libm4.dll.a
> m4/.libs/module.o:module.c:(.text+0x6cb): undefined reference to
> `_lt_dlhandle_find'
> m4/.libs/module.o:module.c:(.text+0x8a5): undefined reference to
> `_lt_dlhandle_first'
> m4/.libs/module.o:module.c:(.text+0x95e): undefined reference to
> `_lt_dlhandle_find'
> m4/.libs/module.o:module.c:(.text+0xea): undefined reference to
> `_lt_dlhandle_first'
> collect2: ld returned 1 exit status
> make[2]: *** [m4/libm4.la] Error 1
>
> I notice that it is attempting to link against /usr/lib/libltdl.dll.a,
> which comes from libtool 1.5.18, rather than /usr/local/lib/libltdl.dll.a,
> which is my installed libtool 2.1a, and I am pretty sure that
> lt_dlhandle_fi{nd,rst} were added in 2.x, explaining the link failure.
> What I can't track down is why the link command is looking in the wrong
> directory, and thus getting the wrong symbols for libltdl.
I believe Gary fixed this issue in Libtool CVS HEAD now.
Surely you will still have to set CPPFLAGS/LDFLAGS if, on your system,
/usr/include resp /usr/lib is searched before the /usr/local
counterpart. But in case the one found is not new enough, the libtool
macros will decide to use the in-tree copy of both header files and
library now.
Please report back if you are seeing any other issues. Thanks!
Cheers,
Ralf
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