Revert "configure: try to use -Wl,--as-needed if possible"

This reverts commit 01b911bccfa29435929665c7df827f70de36ccfa. On some
systems, netsnmpagent is not linked to all required libs.

undefined symbol: netsnmpUDPDomain(/usr/lib/libnetsnmpagent.so.9)
undefined symbol: vacm_parse_config_group(/usr/lib/libnetsnmpagent.so.9)
undefined symbol: netsnmp_TCPIPv6Domain(/usr/lib/libnetsnmpagent.so.9)
undefined symbol: snmp_errno(/usr/lib/libnetsnmpagent.so.9)
[...]

Therefore, we really need to really need to link to some libraries
present in net-snmp-config.

diff --git a/configure.ac b/configure.ac
index 427569a8456d07e2946dfc3b0c0f3e8c707075ae..d2c7014f6989dab31229e584682d214c78950017 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -50,8 +50,6 @@ AX_CFLAGS_GCC_OPTION([-D_FORTIFY_SOURCE=2])
 AX_CFLAGS_GCC_OPTION([-Wno-unused-parameter])
 AX_CFLAGS_GCC_OPTION([-Wno-sign-compare]) dnl Should be fixed later
 
-AX_LDFLAGS_OPTION([-Wl,--as-needed])
-
 AC_CACHE_SAVE
 
 # Checks for header files.

diff --git a/m4/ax_ld_check_flag.m4 b/m4/ax_ld_check_flag.m4
deleted file mode 100644 (file)
index 2f560c6..0000000
--- a/m4/ax_ld_check_flag.m4
+++ /dev/null
@@ -1,97 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_ld_check_flag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_LD_CHECK_FLAG(FLAG-TO-CHECK,[PROLOGUE],[BODY],[ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
-#
-# DESCRIPTION
-#
-#   This macro tests if the C++ compiler supports the flag FLAG-TO-CHECK. If
-#   successfull execute ACTION-IF-SUCCESS otherwise ACTION-IF-FAILURE.
-#   PROLOGUE and BODY are optional and should be used as in AC_LANG_PROGRAM
-#   macro.
-#
-#   Example:
-#
-#     AX_LD_CHECK_FLAG([-Wl,-L/usr/lib],[],[],[
-#       ...
-#     ],[
-#       ...
-#     ])
-#
-#   This code is inspired from KDE_CHECK_COMPILER_FLAG macro. Thanks to
-#   Bogdan Drozdowski <bogdandr@op.pl> for testing and bug fixes.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
-#
-#   This program is free software; you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation; either version 2 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 6
-
-AC_DEFUN([AX_LD_CHECK_FLAG],[
-  AC_PREREQ([2.61])
-  AC_REQUIRE([AC_PROG_CXX])
-  AC_REQUIRE([AC_PROG_SED])
-
-  flag=`echo "$1" | $SED 'y% .=/+-(){}<>:*,%_______________%'`
-
-  AC_CACHE_CHECK([whether the linker accepts the $1 flag],
-    [ax_cv_ld_check_flag_$flag],[
-
-    #AC_LANG_PUSH([C])
-
-    save_LDFLAGS="$LDFLAGS"
-    LDFLAGS="$LDFLAGS $1"
-    AC_LINK_IFELSE([
-      AC_LANG_PROGRAM([$2],[$3])
-    ],[
-      eval "ax_cv_ld_check_flag_$flag=yes"
-    ],[
-      eval "ax_cv_ld_check_flag_$flag=no"
-    ])
-
-    LDFLAGS="$save_LDFLAGS"
-
-    #AC_LANG_POP
-
-  ])
-
-  AS_IF([eval "test \"`echo '$ax_cv_ld_check_flag_'$flag`\" = yes"],[
-    :
-    $4
-  ],[
-    :
-    $5
-  ])
-])
-
-AC_DEFUN([AX_LDFLAGS_OPTION],[
-  AX_LD_CHECK_FLAG([$1],[],[],[LDFLAGS="$LDFLAGS $1"])])