Add replacement sleep(); mostly for mingw usage.

configure

@@ -9467,6 +9467,19 @@ esac
 
 fi
 
+ac_fn_c_check_func "$LINENO" "sleep" "ac_cv_func_sleep"
+if test "x$ac_cv_func_sleep" = xyes; then :
+  $as_echo "#define HAVE_SLEEP 1" >>confdefs.h
+
+else
+  case " $LIBOBJS " in
+  *" sleep.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS sleep.$ac_objext"
+ ;;
+esac
+
+fi
+
 ac_fn_c_check_func "$LINENO" "syslog" "ac_cv_func_syslog"
 if test "x$ac_cv_func_syslog" = xyes; then :
   $as_echo "#define HAVE_SYSLOG 1" >>confdefs.h

configure.in

@@ -306,7 +306,7 @@ AC_CHECK_FUNCS(atexit ioperm i386_set_ioperm \
     cfmakeraw tcsendbreak strcasecmp strncasecmp _portaccess \
     getaddrinfo getnameinfo poll setitimer iopl getuid getpass)
 AC_REPLACE_FUNCS(getenv isfdtype sigprocmask snprintf \
-    strcasestr strdup strndup strsep usleep syslog vsyslog)
+    strcasestr strdup strndup strsep usleep sleep syslog vsyslog)
 
 SANE_PROTOTYPES
 

include/sane/config.h.in

@@ -267,6 +267,9 @@
 /* Define to 1 if you have the `sigprocmask' function. */
 #undef HAVE_SIGPROCMASK
 
+/* Define to 1 if you have the `sleep' function. */
+#undef HAVE_SLEEP
+
 /* Define to 1 if you have the `snprintf' function. */
 #undef HAVE_SNPRINTF
 

lib/Makefile.am

@@ -10,5 +10,5 @@ noinst_LTLIBRARIES = liblib.la libfelib.la
 libfelib_la_SOURCES = getopt.c getopt1.c md5.c syslog.c vsyslog.c
 
 liblib_la_SOURCES = alloca.c getenv.c inet_ntop.c inet_pton.c \
-	isfdtype.c sigprocmask.c snprintf.c strcasestr.c strdup.c \
-	strndup.c strsep.c usleep.c
+	isfdtype.c sigprocmask.c sleep.c snprintf.c strcasestr.c \
+	strdup.c strndup.c strsep.c usleep.c

lib/Makefile.in

@@ -53,8 +53,8 @@ am_libfelib_la_OBJECTS = getopt.lo getopt1.lo md5.lo syslog.lo \
 libfelib_la_OBJECTS = $(am_libfelib_la_OBJECTS)
 liblib_la_LIBADD =
 am_liblib_la_OBJECTS = alloca.lo getenv.lo inet_ntop.lo inet_pton.lo \
-	isfdtype.lo sigprocmask.lo snprintf.lo strcasestr.lo strdup.lo \
-	strndup.lo strsep.lo usleep.lo
+	isfdtype.lo sigprocmask.lo sleep.lo snprintf.lo strcasestr.lo \
+	strdup.lo strndup.lo strsep.lo usleep.lo
 liblib_la_OBJECTS = $(am_liblib_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/include/sane
 depcomp = $(SHELL) $(top_srcdir)/depcomp
@@ -247,8 +247,8 @@ AM_CPPFLAGS = -I. -I$(top_builddir)/include -I$(top_srcdir)/include
 noinst_LTLIBRARIES = liblib.la libfelib.la
 libfelib_la_SOURCES = getopt.c getopt1.c md5.c syslog.c vsyslog.c
 liblib_la_SOURCES = alloca.c getenv.c inet_ntop.c inet_pton.c \
-	isfdtype.c sigprocmask.c snprintf.c strcasestr.c strdup.c \
-	strndup.c strsep.c usleep.c
+	isfdtype.c sigprocmask.c sleep.c snprintf.c strcasestr.c \
+	strdup.c strndup.c strsep.c usleep.c
 
 all: all-am
 
@@ -313,6 +313,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/isfdtype.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/md5.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sigprocmask.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sleep.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/snprintf.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strcasestr.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strdup.Plo@am__quote@

lib/sleep.c

@@ -0,0 +1,30 @@
+#include "../include/sane/config.h"
+
+#ifndef HAVE_SLEEP
+
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+
+unsigned int sleep(unsigned int seconds)
+{
+#ifdef HAVE_WINDOWS_H
+    Sleep(seconds*1000);
+    return 0;
+#else
+    int rc = 0;
+
+    /* WARNING: Not all platforms support usleep() for more than 1
+     * second. Assuming if they do not have POSIX sleep then they
+     * do not have POSIX usleep() either and are using our internal
+     * version which can support it. If it fails, need to add an OS
+     * specific replacement like Sleep for Windows.
+     */
+    if (usleep(seconds*1000000))
+	rc = 1;
+    return rc;
+#endif
+
+}
+
+#endif