use LIBNAME consistently. Useful on systems like OpenBSD where the curses

library is called 'curses' and not 'ncurses'

ext/ncurses/config.m4

@@ -44,10 +44,10 @@ if test "$PHP_NCURSES" != "no"; then
      -L$NCURSES_DIR/lib -lm
    ])
   
-   AC_CHECK_LIB(ncurses, color_set,   [AC_DEFINE(HAVE_NCURSES_COLOR_SET,  1, [ ])])
-   AC_CHECK_LIB(ncurses, slk_color,   [AC_DEFINE(HAVE_NCURSES_SLK_COLOR,  1, [ ])])
-   AC_CHECK_LIB(ncurses, asume_default_colors,   [AC_DEFINE(HAVE_NCURSES_ASSUME_DEFAULT_COLORS,  1, [ ])])
-   AC_CHECK_LIB(ncurses, use_extended_names,   [AC_DEFINE(HAVE_NCURSES_USE_EXTENDED_NAMES,  1, [ ])])
+   AC_CHECK_LIB($LIBNAME, color_set,   [AC_DEFINE(HAVE_NCURSES_COLOR_SET,  1, [ ])])
+   AC_CHECK_LIB($LIBNAME, slk_color,   [AC_DEFINE(HAVE_NCURSES_SLK_COLOR,  1, [ ])])
+   AC_CHECK_LIB($LIBNAME, asume_default_colors,   [AC_DEFINE(HAVE_NCURSES_ASSUME_DEFAULT_COLORS,  1, [ ])])
+   AC_CHECK_LIB($LIBNAME, use_extended_names,   [AC_DEFINE(HAVE_NCURSES_USE_EXTENDED_NAMES,  1, [ ])])
 
    PHP_NEW_EXTENSION(ncurses, ncurses.c ncurses_fe.c ncurses_functions.c, $ext_shared, cli)
    PHP_SUBST(NCURSES_SHARED_LIBADD)