[LD] aelparse.o aelbison.o pbx_ael.o ael_main.o ast_expr2f.o ast_expr2.o strcompat.o -> aelparse
aelparse.o(.text+0x1d29): In function `ael_yylex':
/usr/src/asterisk-1.4/utils/ael.flex:417: undefined reference to `ast_copy_string'
ast_expr2f.o(.text+0x2d03): In function `ast_expr':
/usr/src/asterisk-1.4/utils/ast_expr2.fl:248: undefined reference to `ast_copy_string'
collect2: ld returned 1 exit status
make[1]: *** [aelparse] Error 1
make: *** [utils] Error 2