* configure.in change from Debian to fix autoreconf: https://sources.debian.org/src/lineakd/1%253A0.9-6/debian/patches/005_configure_in.diff/#L19
* Rest is to fix libdl linkage (and general LDFLAGS issues): https://bugs.gentoo.org/722372
--- a/configure.in
+++ b/configure.in
@@ -28,10 +28,12 @@
 
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT(acinclude.m4) dnl a source file from your sub dir
-
+AC_INIT
 dnl This is so we can use kde-common
 AC_CONFIG_AUX_DIR(admin)
+AC_CONFIG_MACRO_DIR([m4])
+
+LT_INIT
 
 dnl This ksh/zsh feature conflicts with `cd blah ; pwd`
 unset CDPATH

--- a/configure.in
+++ b/configure.in
@@ -81,7 +81,7 @@ KDE_PROG_LIBTOOL
 
 dnl activate the next macro call for DLOPEN tests and setting LIBDL
 dnl   (n.b. KDE_MISC_TESTS does the same to you, so use either this or the next one)
-dnl KDE_CHECK_DLOPEN
+KDE_CHECK_DLOPEN
 
 dnl activate the next macro call for some additional tests
 dnl   (compat, crypt, socket, nsl, dlopen, ...)

--- a/lineak/Makefile.am
+++ b/lineak/Makefile.am
@@ -19,8 +19,8 @@ liblineak_la_SOURCES = pluginmanager.cpp globals.cpp displayctrl.cpp xmgr.cpp cd
 #   liblineak_la_LDFLAGS = -version-info 8:0:8 $(all_libraries); \
 #fi;
 
-liblineak_la_LIBADD  = -lX11 -lXext $(X_LIBS)  -lXt -lSM -lICE -L/usr/X11R6/lib
-liblineak_la_LDFLAGS = -version-info 8:0:8 $(all_libraries) -L/usr/X11R6/lib @X_LIBS@ @X_PRE_LIBS@  -lpthread
+liblineak_la_LIBADD  = -lX11 -lXext $(X_LIBS) -lXt -lSM -lICE -L/usr/X11R6/lib $(all_libraries) @X_LIBS@ @X_PRE_LIBS@ $(PTHREAD_LIBS) @LIBDL@
+liblineak_la_LDFLAGS = -version-info 8:0:8
   
 lineak_HEADERS = configdirectives.h configloader.h definitions.h defloader.h lconfig.h lconfigdata.h ldef.h lobject.h lkbd.h lkey.h lbutton.h loader.h msgpasser.h saver.h lcommand.h lockctrl.h lineak_util_functions.h lineak_core_functions.h cdromctrl.h xmgr.h displayctrl.h plugin_definitions.h commandexec.h pluginmanager.h
   
--- a/lineakd/Makefile.am
+++ b/lineakd/Makefile.am
@@ -1,8 +1,8 @@
 bin_PROGRAMS = lineakd
 
 lineakd_SOURCES = lineakd_core_functions.cpp cmdprefs.cpp main.cpp 
-lineakd_LDADD   = -lpthread -llineak -lXext -lX11 -ldl
-lineakd_LDFLAGS = -rdynamic -L../lineak $(all_libraries) @X_LIBS@ @X_PRE_LIBS@
+lineakd_LDADD   = -llineak -lXext -lX11 $(PTHREAD_LIBS) @LIBDL@ $(all_libraries) @X_LIBS@ @X_PRE_LIBS@
+lineakd_LDFLAGS = -rdynamic -L../lineak
 
 EXTRA_DIST = main.cpp eakprocs.h cmdprefs.cpp cmdprefs.h lineakkb.def lineakd.1.bz2 OLDCODE lineakd_core_functions.h lineakd_core_functions.cpp