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[PATCH] Fix libtool.m4 dlopen lookup for mingw

From: Pavel Chupin <pavel dot v dot chupin at gmail dot com>
To: gdb-patches at sourceware dot org, "H.J. Lu" <hjl dot tools at gmail dot com>
Date: Tue, 27 Nov 2012 11:05:17 +0400
Subject: [PATCH] Fix libtool.m4 dlopen lookup for mingw

Hi,
Attached patch removes mingw from special cases of dlopen lookup. It
allows dlopen to be found later in libdl and have it added properly as
-ldl in bfd and sim builds.

To reproduce the problem:

../configure --enable-plugins --target=arm-linux-android
--host=i586-pc-mingw32msvc --build=i386-linux-gnu
make

Error:
../../bfd/libbfd.a(plugin.o): In function `try_load_plugin':
/tmp/gdb/BUILD/bfd/../../bfd/plugin.c:170: undefined reference to `dlopen'
/tmp/gdb/BUILD/bfd/../../bfd/plugin.c:177: undefined reference to `dlsym'
/tmp/gdb/BUILD/bfd/../../bfd/plugin.c:173: undefined reference to `dlerror'

ChangeLog:

2012-11-27  Pavel Chupin  <pavel.v.chupin@intel.com>

        Fix libtool.m4 libdl lookup for mingw
        * libtool.m4: Remove mingw from special case of dlopen lookup
        * bfd/configure: Regenerate.
        * sim/arm/configure: Regenerate.
        * sim/avr/configure: Regenerate.
        * sim/bfin/configure: Regenerate.
        * sim/common/configure: Regenerate.
        * sim/cr16/configure: Regenerate.
        * sim/cris/configure: Regenerate.
        * sim/d10v/configure: Regenerate.
        * sim/erc32/configure: Regenerate.
        * sim/frv/configure: Regenerate.
        * sim/h8300/configure: Regenerate.
        * sim/iq2000/configure: Regenerate.
        * sim/lm32/configure: Regenerate.
        * sim/m32c/configure: Regenerate.
        * sim/m32r/configure: Regenerate.
        * sim/m68hc11/configure: Regenerate.
        * sim/mcore/configure: Regenerate.
        * sim/microblaze/configure: Regenerate.
        * sim/mips/configure: Regenerate.
        * sim/mn10300/configure: Regenerate.
        * sim/moxie/configure: Regenerate.
        * sim/rl78/configure: Regenerate.
        * sim/rx/configure: Regenerate.
        * sim/sh/configure: Regenerate.
        * sim/sh64/configure: Regenerate.
        * sim/v850/configure: Regenerate.

--
Pavel Chupin
Intel Corporation

Attachment: Fix-gdb-configure-with-plugins-mingw.patch
Description: Binary data

Follow-Ups:
- Re: [PATCH] Fix libtool.m4 dlopen lookup for mingw
  - From: Joel Brobecker
- Re: [PATCH] Fix libtool.m4 dlopen lookup for mingw
  - From: Eli Zaretskii

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