Fix build without gpsim

(cherry picked from commit 3fc5e3c321)

configure.in

@@ -167,7 +167,7 @@ if test x$have_gpsim_0_21_4 == xyes || test x$have_gpsim_0_21_11 == xyes || test
 	for LIBREADLINE in "-lreadline" "-lreadline $LIBCURSES" "-lreadline -ltermcap" "-lreadline -lncurses" "-lreadline -lcurses"
 	do
 		LIBS="$ac_save_LIBS $LIBREADLINE"
-		LIB_GPSIM="$LIBREADLINE -lgpsim -lgpsim_eXdbm -lgpsimcli"
+		LIB_GPSIM="$LIBREADLINE -lgpsim -lgpsim_eXdbm -lgpsimcli -lgpsimgui"
 		AC_TRY_RUN([
 			/* program */
 			#include <stdio.h>

configure.in.in

@@ -102,7 +102,7 @@ if test x$have_gpsim_0_21_4 == xyes || test x$have_gpsim_0_21_11 == xyes || test
 	for LIBREADLINE in "-lreadline" "-lreadline $LIBCURSES" "-lreadline -ltermcap" "-lreadline -lncurses" "-lreadline -lcurses"
 	do
 		LIBS="$ac_save_LIBS $LIBREADLINE"
-		LIB_GPSIM="$LIBREADLINE -lgpsim -lgpsim_eXdbm -lgpsimcli"
+		LIB_GPSIM="$LIBREADLINE -lgpsim -lgpsim_eXdbm -lgpsimcli -lgpsimgui"
 		AC_TRY_RUN([
 			/* program */
 			#include <stdio.h>

src/Makefile.am

@@ -19,7 +19,7 @@ ktechlab_LDADD = $(top_builddir)/src/gui/libgui.la \
 	$(top_builddir)/src/mechanics/libmechanics.la $(top_builddir)/src/electronics/libelectronics.la \
 	$(top_builddir)/src/electronics/simulation/libelements.la $(top_builddir)/src/electronics/components/libcomponents.la \
 	$(top_builddir)/src/languages/liblanguages.la $(top_builddir)/src/drawparts/libdrawparts.la \
-	$(top_builddir)/src/core/libcore.la -lkutils -lktexteditor $(LIB_KFILE) $(LIB_KDEPRINT) $(LIB_QT) $(LIB_GPSIM) -lgpsimgui
+	$(top_builddir)/src/core/libcore.la -lkutils -lktexteditor $(LIB_KFILE) $(LIB_KDEPRINT) $(LIB_QT) $(LIB_GPSIM)
 
 # which sources should be compiled for ktechlab
 ktechlab_SOURCES = ktechlab.cpp node.cpp connector.cpp itemlibrary.cpp \