rename --with-pthreads to --with-threads

configure.in

@@ -14,7 +14,7 @@ AC_ARG_ENABLE(unicode, AS_HELP_STRING([--enable-unicode], [Enable utf8 support @
 AC_ARG_WITH(curl, AS_HELP_STRING([--with-curl], [Enable fetching lyrics from the Internet @<:@default=auto@:>@]), [curl=$withval], [curl=auto])
 AC_ARG_WITH(iconv, AS_HELP_STRING([--with-iconv], [Enable iconv support (Note: if you use utf-8 system wide, you can disable this) @<:@default=auto@:>@]), [iconv=$withval], [iconv=auto])
 AC_ARG_WITH(pdcurses, AS_HELP_STRING([--with-pdcurses[=LIBNAME]], [Link against pdcurses instead of ncurses @<:@default=XCurses@:>@]), [pdcurses=$withval], [pdcurses=no])
-AC_ARG_WITH(pthreads, AS_HELP_STRING([--with-pthreads], [Enable threading support using posix threads @<:@default=auto@:>@]), [pthreads=$withval], [pthreads=auto])
+AC_ARG_WITH(threads, AS_HELP_STRING([--with-threads], [Enable threading support using posix threads @<:@default=auto@:>@]), [threads=$withval], [threads=auto])
 AC_ARG_WITH(taglib, AS_HELP_STRING([--with-taglib], [Enable tag editor @<:@default=auto@:>@]), [taglib=$withval], [taglib=auto])
 
 if test "$clock" = "yes"; then
@@ -87,9 +87,9 @@ dnl =================================
 dnl = checking for curl and pthread =
 dnl =================================
 if test "$curl" != "no" ; then
-	if test "$pthreads" != "no" ; then
+	if test "$threads" != "no" ; then
 		AC_CHECK_HEADERS([pthread.h], AC_CHECK_LIB(pthread, pthread_create, LDFLAGS="$LDFLAGS -lpthread",
-			if test "$pthreads" = "yes" ; then
+			if test "$threads" = "yes" ; then
 				AC_MSG_ERROR([pthread.h found but there is no pthread library to make use of])
 			fi
 		), )