build-sys: use parse-date() only for hwclock

The parse-date.y is used only for hwclock, let's keep it together.
Note that the file (originally from gnulib) has GPLv3 license, so it's
better to make it obvious that we use it really only for hwclock (also
GPL).

Signed-off-by: Karel Zak <kzak@redhat.com>

include/timeutils.h

@@ -88,6 +88,4 @@ int strtime_short(const time_t *t, struct timeval *now, int flags, char *buf, si
 extern time_t timegm(struct tm *tm);
 #endif
 
-int parse_date(struct timespec *, char const *, struct timespec const *);
-
 #endif /* UTIL_LINUX_TIME_UTIL_H */

lib/Makemodule.am

@@ -17,7 +17,6 @@ libcommon_la_SOURCES = \
 	lib/mbsedit.c\
 	lib/md5.c \
 	lib/pager.c \
-	lib/parse-date.y \
 	lib/pwdutils.c \
 	lib/randutils.c \
 	lib/setproctitle.c \

sys-utils/Makemodule.am

@@ -451,7 +451,8 @@ dist_man_MANS += \
 PATHFILES += sys-utils/hwclock.8
 hwclock_SOURCES = \
 	sys-utils/hwclock.c \
-	sys-utils/hwclock.h
+	sys-utils/hwclock.h \
+	sys-utils/hwclock-parse-date.y
 hwclock_LDADD = $(LDADD) libcommon.la -lm
 if USE_HWCLOCK_CMOS
 hwclock_SOURCES += \

sys-utils/hwclock-parse-date.y

@@ -42,6 +42,7 @@
 
 #include "c.h"
 #include "timeutils.h"
+#include "hwclock.h"
 
 /**
  * There's no need to extend the stack, so there's no need to involve

sys-utils/hwclock.h

@@ -77,4 +77,6 @@ extern int set_epoch_rtc(const struct hwclock_control *ctl);
 extern void __attribute__((__noreturn__))
 hwclock_exit(const struct hwclock_control *ctl, int status);
 
+extern int parse_date(struct timespec *, char const *, struct timespec const *);
+
 #endif				/* HWCLOCK_CLOCK_H */