Merge of r4760, r4761: -Wmissing-prototypes.

Fixed compilation with -Wmissing-prototypes.  Added a commented
out -Wmissing-prototypes to CFLAGS.  It is commented out to not break
builds with 3rd party modules.

auto/cc/gcc

@@ -149,6 +149,7 @@ CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
 CFLAGS="$CFLAGS -Wall -Wpointer-arith"
 #CFLAGS="$CFLAGS -Wconversion"
 #CFLAGS="$CFLAGS -Winline"
+#CFLAGS="$CFLAGS -Wmissing-prototypes"
 
 
 case "$NGX_GCC_VER" in

src/core/ngx_conf_file.c

@@ -1448,12 +1448,16 @@ ngx_conf_set_bitmask_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 }
 
 
+#if 0
+
 char *
 ngx_conf_unsupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 {
     return "unsupported on this platform";
 }
 
+#endif
+
 
 char *
 ngx_conf_deprecated(ngx_conf_t *cf, void *post, void *data)

src/core/ngx_crypt.c

@@ -6,6 +6,7 @@
 
 #include <ngx_config.h>
 #include <ngx_core.h>
+#include <ngx_crypt.h>
 #include <ngx_md5.h>
 #if (NGX_HAVE_SHA1)
 #include <ngx_sha1.h>

src/event/modules/ngx_epoll_module.c

@@ -44,16 +44,25 @@ struct epoll_event {
     epoll_data_t  data;
 };
 
+
+int epoll_create(int size);
+
 int epoll_create(int size)
 {
     return -1;
 }
 
+
+int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
+
 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
 {
     return -1;
 }
 
+
+int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout);
+
 int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout)
 {
     return -1;
@@ -76,11 +85,6 @@ struct io_event {
 };
 
 
-int eventfd(u_int initval)
-{
-    return -1;
-}
-
 #endif
 #endif
 

src/event/modules/ngx_eventport_module.c

@@ -15,6 +15,12 @@
 #define ushort_t  u_short
 #define uint_t    u_int
 
+#ifndef CLOCK_REALTIME
+#define CLOCK_REALTIME          0
+typedef int     clockid_t;
+typedef void *  timer_t;
+#endif
+
 /* Solaris declarations */
 
 #define PORT_SOURCE_AIO         1
@@ -24,7 +30,9 @@
 #define PORT_SOURCE_ALERT       5
 #define PORT_SOURCE_MQ          6
 
+#ifndef ETIME
 #define ETIME                   64
+#endif
 
 #define SIGEV_PORT              4
 
@@ -50,39 +58,62 @@ typedef struct itimerspec {     /* definition per POSIX.4 */
 
 #endif
 
+int port_create(void);
+
 int port_create(void)
 {
     return -1;
 }
 
+
+int port_associate(int port, int source, uintptr_t object, int events,
+    void *user);
+
 int port_associate(int port, int source, uintptr_t object, int events,
     void *user)
 {
     return -1;
 }
 
+
+int port_dissociate(int port, int source, uintptr_t object);
+
 int port_dissociate(int port, int source, uintptr_t object)
 {
     return -1;
 }
 
+
+int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget,
+    struct timespec *timeout);
+
 int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget,
     struct timespec *timeout)
 {
     return -1;
 }
 
+
+int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid);
+
 int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
 {
     return -1;
 }
 
+
+int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
+    struct itimerspec *ovalue);
+
 int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
     struct itimerspec *ovalue)
 {
     return -1;
 }
 
+
+int timer_delete(timer_t timerid);
+
 int timer_delete(timer_t timerid)
 {
     return -1;

src/event/modules/ngx_rtsig_module.c

@@ -12,6 +12,13 @@
 
 #if (NGX_TEST_BUILD_RTSIG)
 
+#if (NGX_DARWIN)
+
+#define SIGRTMIN       33
+#define si_fd          __pad[0]
+
+#else
+
 #ifdef  SIGRTMIN
 #define si_fd          _reason.__spare__.__spare2__[0]
 #else
@@ -19,10 +26,15 @@
 #define si_fd          __spare__[0]
 #endif
 
+#endif
+
 #define F_SETSIG       10
 #define KERN_RTSIGNR   30
 #define KERN_RTSIGMAX  31
 
+int sigtimedwait(const sigset_t *set, siginfo_t *info,
+                 const struct timespec *timeout);
+
 int sigtimedwait(const sigset_t *set, siginfo_t *info,
                  const struct timespec *timeout)
 {

src/event/ngx_event.c

@@ -567,7 +567,7 @@ ngx_event_module_init(ngx_cycle_t *cycle)
 
 #if !(NGX_WIN32)
 
-void
+static void
 ngx_timer_signal_handler(int signo)
 {
     ngx_event_timer_alarm = 1;

src/http/modules/ngx_http_log_module.c

@@ -218,7 +218,7 @@ static ngx_http_log_var_t  ngx_http_log_vars[] = {
 };
 
 
-ngx_int_t
+static ngx_int_t
 ngx_http_log_handler(ngx_http_request_t *r)
 {
     u_char                   *line, *p;

src/http/modules/ngx_http_upstream_least_conn_module.c

@@ -81,7 +81,7 @@ ngx_module_t  ngx_http_upstream_least_conn_module = {
 };
 
 
-ngx_int_t
+static ngx_int_t
 ngx_http_upstream_init_least_conn(ngx_conf_t *cf,
     ngx_http_upstream_srv_conf_t *us)
 {

src/http/ngx_http_parse_time.c

@@ -7,6 +7,7 @@
 
 #include <ngx_config.h>
 #include <ngx_core.h>
+#include <ngx_http.h>
 
 
 static ngx_uint_t  mday[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

src/mail/ngx_mail_parse.c

@@ -9,6 +9,9 @@
 #include <ngx_core.h>
 #include <ngx_event.h>
 #include <ngx_mail.h>
+#include <ngx_mail_pop3_module.h>
+#include <ngx_mail_imap_module.h>
+#include <ngx_mail_smtp_module.h>
 
 
 ngx_int_t

src/misc/ngx_cpp_test_module.cpp

@@ -20,6 +20,8 @@ extern "C" {
 // #include <string>
 
 
+void ngx_cpp_test_handler(void *data);
+
 void
 ngx_cpp_test_handler(void *data)
 {

src/os/unix/ngx_atomic.h

@@ -48,7 +48,9 @@ typedef volatile ngx_atomic_uint_t  ngx_atomic_t;
 #include <libkern/OSAtomic.h>
 
 /* "bool" conflicts with perl's CORE/handy.h */
+#if 0
 #undef bool
+#endif
 
 
 #define NGX_HAVE_ATOMIC_OPS  1

src/os/unix/ngx_posix_init.c

@@ -98,6 +98,8 @@ ngx_os_status(ngx_log_t *log)
 }
 
 
+#if 0
+
 ngx_int_t
 ngx_posix_post_conf_init(ngx_log_t *log)
 {
@@ -122,3 +124,5 @@ ngx_posix_post_conf_init(ngx_log_t *log)
 
     return NGX_OK;
 }
+
+#endif

src/os/unix/ngx_solaris_sendfilev_chain.c

@@ -29,6 +29,9 @@ static ssize_t sendfilev(int fd, const struct sendfilevec *vec,
     return -1;
 }
 
+ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in,
+    off_t limit);
+
 #endif