diff -up magicpoint-1.13a/configure~ magicpoint-1.13a/configure

--- magicpoint-1.13a/configure~	2021-02-15 17:02:17.000000000 +0100

+++ magicpoint-1.13a/configure	2021-02-15 17:06:33.304594700 +0100

@@ -5785,6 +5785,8 @@ for i in /usr/pkg /usr/local /usr; do

 			DEPLIBS="$DEPLIBS $i/lib/libmng.a"

 		elif test -f $i/lib/libmng.so ; then

 			DEPLIBS="$DEPLIBS $i/lib/libmng.so"

+		elif test -f $i/lib64/libmng.so ; then

+			DEPLIBS="$DEPLIBS $i/lib64/libmng.so"

 		else

 			break;

 		fi

@@ -5796,7 +5798,7 @@ if test "${ac_cv_lib_mng_mng_initialize+

   echo $ECHO_N "(cached) $ECHO_C" >&6

 else

   ac_check_lib_save_LIBS=$LIBS

-LIBS="-lmng  $LIBS"

+LIBS="-lmng -ljpeg $LIBS"

 cat >conftest.$ac_ext <<_ACEOF

 /* confdefs.h.  */

 _ACEOF

@@ -5852,7 +5854,7 @@ fi

 { echo "$as_me:$LINENO: result: $ac_cv_lib_mng_mng_initialize" >&5

 echo "${ECHO_T}$ac_cv_lib_mng_mng_initialize" >&6; }

 if test $ac_cv_lib_mng_mng_initialize = yes; then

-  LIBS="$LIBS -lmng"

+  LIBS="$LIBS -lmng -ljpeg"

 			 cat >>confdefs.h <<\_ACEOF

 #define MNG 1

 _ACEOF