Update shobj-conf to use TERMCAP_LIB for shared library linking

Author: cxzhong

build/pkgs/readline/patches/0002-ltinfo.patch

@@ -0,0 +1,24 @@
+--- a/support/shobj-conf	2025-10-29 21:46:37.876265377 +0800
++++ b/support/shobj-conf	2025-10-29 21:46:46.400261991 +0800
+@@ -39,10 +39,10 @@
+ SHOBJ_LD=
+ SHOBJ_LDFLAGS=
+ SHOBJ_XLDFLAGS=
+-SHOBJ_LIBS=
++SHOBJ_LIBS='$(TERMCAP_LIB)'
+ 
+ SHLIB_XLDFLAGS=
+-SHLIB_LIBS=
++SHLIB_LIBS='$(TERMCAP_LIB)'
+ 
+ SHLIB_DOT='.'
+ SHLIB_LIBPREF='lib'
+@@ -171,7 +171,7 @@
+ 		;;
+ 	esac
+ 
+-	SHLIB_LIBS='-lncurses'	# see if -lcurses works on MacOS X 10.1 
++	SHLIB_LIBS='$(TERMCAP_LIB)'
+ 	;;
+ 
+ openbsd*|netbsd*|mirbsd*)