configure script now checks availability of the alarm() function

lib/setup.h

@@ -338,76 +338,66 @@
 
 #ifdef WIN32
 
-#if !defined(__CYGWIN__)
-#define sclose(x) closesocket(x)
+#  if !defined(__CYGWIN__)
+#    define sclose(x) closesocket(x)
+#  else
+#    define sclose(x) close(x)
+#  endif
 
-#undef HAVE_ALARM
-#else
-     /* gcc-for-win is still good :) */
-#define sclose(x) close(x)
-#define HAVE_ALARM
-#endif /* !GNU or mingw */
-
-#define DIR_CHAR      "\\"
-#define DOT_CHAR      "_"
+#  define DIR_CHAR      "\\"
+#  define DOT_CHAR      "_"
 
 #else /* WIN32 */
 
-#ifdef MSDOS  /* Watt-32 */
-#include <sys/ioctl.h>
-#define sclose(x)         close_s(x)
-#define select(n,r,w,x,t) select_s(n,r,w,x,t)
-#define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
-#define IOCTL_3_ARGS
-#include <tcp.h>
-#ifdef word
-#undef word
-#endif
-#ifdef byte
-#undef byte
-#endif
+#  ifdef MSDOS  /* Watt-32 */
 
-#else /* MSDOS */
+#    include <sys/ioctl.h>
+#    define sclose(x)         close_s(x)
+#    define select(n,r,w,x,t) select_s(n,r,w,x,t)
+#    define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
+#    define IOCTL_3_ARGS
+#    include <tcp.h>
+#    ifdef word
+#      undef word
+#    endif
+#    ifdef byte
+#      undef byte
+#    endif
 
-#ifdef __BEOS__
-#define sclose(x) closesocket(x)
-#else /* __BEOS__ */
-#define sclose(x) close(x)
-#endif /* __BEOS__ */
+#  else /* MSDOS */
 
-#define HAVE_ALARM
+#    ifdef __BEOS__
+#      define sclose(x) closesocket(x)
+#    else /* __BEOS__ */
+#      define sclose(x) close(x)
+#    endif /* __BEOS__ */
 
-#endif /* MSDOS */
+#  endif /* MSDOS */
 
-#ifdef _AMIGASF
-#undef HAVE_ALARM
-#undef sclose
-#define sclose(x) CloseSocket(x)
-#endif
+#  ifdef _AMIGASF
+#    undef sclose
+#    define sclose(x) CloseSocket(x)
+#  endif
 
-#ifdef __minix
-/* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
-extern char * strtok_r(char *s, const char *delim, char **last);
-extern struct tm * gmtime_r(const time_t * const timep, struct tm *tmp);
-#endif
+#  ifdef __minix
+     /* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
+     extern char * strtok_r(char *s, const char *delim, char **last);
+     extern struct tm * gmtime_r(const time_t * const timep, struct tm *tmp);
+#  endif
 
-#ifdef __SYMBIAN32__
-#undef HAVE_ALARM
-#endif
+#  define DIR_CHAR      "/"
+#  ifndef DOT_CHAR
+#    define DOT_CHAR      "."
+#  endif
 
-#define DIR_CHAR      "/"
-#ifndef DOT_CHAR
-#define DOT_CHAR      "."
-#endif
+#  ifdef MSDOS
+#    undef DOT_CHAR
+#    define DOT_CHAR      "_"
+#  endif
 
-#ifdef MSDOS
-#undef DOT_CHAR
-#define DOT_CHAR      "_"
-#endif
-
-#ifndef fileno /* sunos 4 have this as a macro! */
-int fileno( FILE *stream);
-#endif
+#  ifndef fileno /* sunos 4 have this as a macro! */
+     int fileno( FILE *stream);
+#  endif
 
 #endif /* WIN32 */
 
@@ -450,7 +440,6 @@ int netware_init(void);
 #include <sys/bsdskt.h>
 #include <sys/timeval.h>
 #endif
-#undef HAVE_ALARM
 #endif
 
 #if defined(HAVE_LIBIDN) && defined(HAVE_TLD_H)