Drop config.h include from helpers.h, exported header file

Drop the config.h include from helpers.h after a report from a colleague
trying to build an external plugin from the latest GIT sources.

Instead, make sure config.h is included, and properly commented, in all
.c files that have configure #ifdefs and other deps.  Also, move more
ot the includes from helpers.h to their respective .c file instead to
reduce the amount of headers an external plugin pulls in.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

plugins/bootmisc.c

@@ -21,8 +21,12 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <ftw.h>
+#ifdef HAVE_MNTENT_H
 #include <mntent.h>
+#endif
 #include <string.h>
 #ifdef _LIBITE_LITE
 # include <libite/lite.h>

src/api.c

@@ -21,6 +21,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -36,7 +38,6 @@
 #endif
 #include <uev/uev.h>
 
-#include "config.h"
 #include "finit.h"
 #include "cond.h"
 #include "conf.h"

src/getty.c

@@ -21,7 +21,7 @@
  * THE SOFTWARE.
  */
 
-#include "config.h"
+#include "config.h"		/* Generated by configure script */
 
 #include <err.h>
 #include <errno.h>

src/helpers.c

@@ -22,6 +22,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <ctype.h>		/* isblank() */
 #include <errno.h>
 #include <grp.h>

src/helpers.h

@@ -25,10 +25,6 @@
 #ifndef FINIT_HELPERS_H_
 #define FINIT_HELPERS_H_
 
-#include "config.h"
-
-#include <mntent.h>
-#include <sched.h>		/* sched_yield() */
 #include <stdarg.h>
 #include <sys/resource.h>
 #include <sys/types.h>

src/log.c

@@ -21,7 +21,8 @@
  * THE SOFTWARE.
  */
 
-#include "config.h"
+#include "config.h"		/* Generated by configure script */
+
 #include <stdio.h>
 #include <stdarg.h>
 #ifdef _LIBITE_LITE

src/mdadm.c

@@ -21,6 +21,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <glob.h>
 #include <stdio.h>
 #include <string.h>

src/mount.c

@@ -21,6 +21,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <errno.h>
 #include <string.h>
 #ifdef HAVE_MNTENT_H

src/pid.c

@@ -22,6 +22,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <errno.h>
 #include <paths.h>
 #include <stdio.h>

src/plugin.c

@@ -21,6 +21,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <errno.h>
 #include <dlfcn.h>		/* dlopen() et al */
 #include <dirent.h>		/* readdir() et al */
@@ -34,7 +36,6 @@
 # include <lite/queue.h>	/* BSD sys/queue.h API */
 #endif
 
-#include "config.h"
 #include "cond.h"
 #include "finit.h"
 #include "helpers.h"

src/service.c

@@ -25,6 +25,7 @@
 #include "config.h"		/* Generated by configure script */
 
 #include <ctype.h>		/* isblank() */
+#include <sched.h>		/* sched_yield() */
 #include <string.h>
 #include <sys/reboot.h>
 #include <sys/prctl.h>

src/sig.c

@@ -69,6 +69,8 @@
  *      Finit  defaults to nothing but sets sys/pwr/fail condition.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <dirent.h>
 #ifdef HAVE_MNTENT_H
 #include <mntent.h>

src/stty.c

@@ -21,10 +21,12 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <errno.h>
 #include <stdlib.h>
-#include <unistd.h>	      /* _POSIX_VDISABLE */
-#include <sys/ttydefaults.h>  /* Not included by default in musl libc */
+#include <unistd.h>		/* _POSIX_VDISABLE */
+#include <sys/ttydefaults.h>	/* Not included by default in musl libc */
 #include <termios.h>
 
 #include "helpers.h"

src/svc.c

@@ -22,6 +22,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <err.h>
 #include <ctype.h>		/* isdigit() */
 #include <time.h>

src/tty.c

@@ -22,6 +22,8 @@
  * THE SOFTWARE.
  */
 
+#include "config.h"		/* Generated by configure script */
+
 #include <ctype.h>		/* isdigit() */
 #include <signal.h>
 #include <termios.h>

src/util.c

@@ -21,10 +21,13 @@
  * THE SOFTWARE.
  */
 
-#include "config.h"
+#include "config.h"		/* Generated by configure script */
+
 #include <ctype.h>		/* isprint() */
 #include <errno.h>
+#ifdef HAVE_MNTENT_H
 #include <mntent.h>
+#endif
 #include <regex.h>
 #include <string.h>
 #include <stdlib.h>

src/utmp-api.c

@@ -21,7 +21,7 @@
  * THE SOFTWARE.
  */
 
-#include "config.h"
+#include "config.h"		/* Generated by configure script */
 
 #include <time.h>
 #include <arpa/inet.h>