Cleaned up config.h.in

These changes were suggested in a pull request by Ruben Kerkhof:
https://github.com/NagiosEnterprises/nrpe/pull/41.
I didn't merge the pull request because parts of it were only of
benefit when useing autoheader or autoreconf, which we don't use.

include/config.h.in

@@ -28,30 +28,67 @@
 #include <stdlib.h>
 
 
-#define DEFAULT_SERVER_PORT	@nrpe_port@	/* default port to use */
+/* Default port for NRPE daemon */
+#undef DEFAULT_SERVER_PORT
 
-#define NRPE_LOG_FACILITY       @log_facility@
+/* NRPE syslog facility */
+#undef NRPE_LOG_FACILITY
 
+/* Enable command-line arguments */
 #undef ENABLE_COMMAND_ARGUMENTS
+
+/* Enable bash command substitution */
 #undef ENABLE_BASH_COMMAND_SUBSTITUTION
+
+/* type to use in place of socklen_t if not defined */
 #undef socklen_t
+
+/* Define to 1 if you have the `getopt_long' function. */
 #undef HAVE_GETOPT_LONG
+
+/* Have the TCP wrappers library */
 #undef HAVE_LIBWRAP
+
+/* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
+
+/* Define to 1 if you have the `strdup' function. */
 #undef HAVE_STRDUP
+
+/* Define to 1 if you have the `strstr' function. */
 #undef HAVE_STRSTR
+
+/* Define to 1 if you have the `strtoul' function. */
 #undef HAVE_STRTOUL
+
+/* Define to 1 if you have the `strtok_r' function. */
 #undef HAVE_STRTOK_R
+
+/* Define to 1 if you have the `initgroups' function. */
 #undef HAVE_INITGROUPS
+
+/* Define to 1 if you have the `closesocket' function. */
 #undef HAVE_CLOSESOCKET
+
+/* Define to 1 if you have the `sigaction' function. */
 #undef HAVE_SIGACTION
+
+/* Set to 1 if you have rfc931_timeout */
 #undef HAVE_RFC931_TIMEOUT
 
+/* The size of `int', as computed by sizeof. */
 #undef SIZEOF_INT
+
+/* The size of `short', as computed by sizeof. */
 #undef SIZEOF_SHORT
+
+/* The size of `long', as computed by sizeof. */
 #undef SIZEOF_LONG
 
-/* #undef const */
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Set to 1 to use SSL DH */
 #undef USE_SSL_DH
 
 /* stupid stuff for u_int32_t */
@@ -91,71 +128,98 @@ typedef int int32_t;
 
 /***** ASPRINTF() AND FRIENDS *****/
 
+/* Whether vsnprintf() is available */
 #undef HAVE_VSNPRINTF
+/* Whether snprintf() is available */
 #undef HAVE_SNPRINTF
+/* Whether aprintf() is available */
 #undef HAVE_ASPRINTF
+/* Whether vaprintf() is available */
 #undef HAVE_VASPRINTF
+/* Define if system has C99 compatible vsnprintf */
 #undef HAVE_C99_VSNPRINTF
+
+/* Whether va_copy() is available */
 #undef HAVE_VA_COPY
+
+/* Whether __va_copy() is available */
 #undef HAVE___VA_COPY
 
 
-#define SOCKET_SIZE_TYPE ""
-#define GETGROUPS_T ""
-#define RETSIGTYPE ""
+/* Socket Size Type */
+#undef SOCKET_SIZE_TYPE
+
+/* Define to the type of elements in the array set by `getgroups'. Usually
+   this is either `int' or `gid_t'. */
+#undef GETGROUPS_T
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* Define to 1 if the system has the type `struct sockaddr_storage'. */
 #undef HAVE_STRUCT_SOCKADDR_STORAGE
 
 /* Use seteuid() or setresuid() depending on the platform */
 #undef SETEUID
 
-/* Is this a Solaris 10 machine? */
+/* Set to 1 if we are on Solaris 10 */
 #undef SOLARIS_10
 
+/* Define to 1 if you have the <getopt.h> header file. */
 #undef HAVE_GETOPT_H
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
 #endif
 
+/* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
-#undef HAVE_STRING_H
 #ifdef HAVE_STRINGS_H
 #include <strings.h>
 #endif
-#ifdef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+#ifdef HAVE_STRING_H
 #include <string.h>
 #endif
 
+/* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 
-
+/* Define to 1 if you have the <signal.h> header file. */
 #undef HAVE_SIGNAL_H
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>
 #endif
 
+/* Define to 1 if you have the <syslog.h> header file. */
 #undef HAVE_SYSLOG_H
 #ifdef HAVE_SYSLOG_H
 #include <syslog.h>
 #endif
 
+/* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 #ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
 #endif
 
+/* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
 #endif
 
+/* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
 
+/* Define to 1 if you have the <sys/wait.h> header file. */
 #undef HAVE_SYS_WAIT_H
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
@@ -168,14 +232,18 @@ typedef int int32_t;
 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
 
+/* Define to 1 if you have the <errno.h> header file. */
 #undef HAVE_ERRNO_H
 #ifdef HAVE_ERRNO_H
 #include <errno.h>
 #endif
 
-/* needed for the time_t structures we use later... */
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
 #undef TIME_WITH_SYS_TIME
+
+/* Define to 1 if you have the <sys/time.h> header file. */
 #undef HAVE_SYS_TIME_H
+
 #if TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>
@@ -188,68 +256,81 @@ typedef int int32_t;
 #endif
 
 
+/* Define to 1 if you have the <sys/socket.h> header file. */
 #undef HAVE_SYS_SOCKET_H
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif
 
-/* Define to 'int' if <sys/socket.h> does not define */
-#undef socklen_t
-
+/* Define to 1 if you have the <socket.h> header file. */
 #undef HAVE_SOCKET_H
 #ifdef HAVE_SOCKET_H
 #include <socket.h>
 #endif
 
+/* Define to 1 if you have the <tcpd.h> header file. */
 #undef HAVE_TCPD_H
 #ifdef HAVE_TCPD_H
 #include <tcpd.h>
 #endif
 
+/* Define to 1 if you have the <netinet/in.h> header file. */
 #undef HAVE_NETINET_IN_H
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif
 
+/* Define to 1 if you have the <arpa/inet.h> header file. */
 #undef HAVE_ARPA_INET_H
 #ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
 #endif
 
+/* Define to 1 if you have the <netdb.h> header file. */
 #undef HAVE_NETDB_H
 #ifdef HAVE_NETDB_H
 #include <netdb.h>
 #endif
 
+/* Define to 1 if you have the <ctype.h> header file. */
 #undef HAVE_CTYPE_H
 #ifdef HAVE_CTYPE_H
 #include <ctype.h>
 #endif
 
+/* Define to 1 if you have the <pwd.h> header file. */
 #undef HAVE_PWD_H
 #ifdef HAVE_PWD_H
 #include <pwd.h>
 #endif
 
+/* Define to 1 if you have the <grp.h> header file. */
 #undef HAVE_GRP_H
 #ifdef HAVE_GRP_H
 #include <grp.h>
 #endif
 
+/* Define to 1 if you have the <dirent.h> header file. */
 #undef HAVE_DIRENT_H
 #ifdef HAVE_DIRENT_H
 #include <dirent.h>
 #endif
 
+/* Have SSL support */
 #undef HAVE_SSL
 
+/* Have the krb5.h header file */
 #undef HAVE_KRB5_H
 #ifdef HAVE_KRB5_H
 #include <krb5.h>
 #endif
 
+/* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
+
 #ifdef HAVE_INTTYPES_H
 #include <inttypes.h>
 #else
@@ -258,4 +339,10 @@ typedef int int32_t;
 #endif
 #endif
 
+/* Define to 1 if you have the <paths.h> header file. */
+#undef HAVE_PATHS_H
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#undef HAVE_SYS_RESOURCE_H
+
 #endif