Include `config.h' and only include existing files..

diff --git a/src/liboping/liboping.c b/src/liboping/liboping.c
index 6f7d079..b57f8e2 100644 (file)
--- a/src/liboping/liboping.c
+++ b/src/liboping/liboping.c
@@ -17,34 +17,67 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
 
-#include <assert.h>
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stdio.h>
+# include <string.h>
+# include <errno.h>
+# include <assert.h>
+#else
+# error "You don't have the standard C99 header files installed"
+#endif /* STDC_HEADERS */
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 
-#include <sys/socket.h>
-#include <netdb.h>
+#if HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
 
-#include <netinet/in_systm.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#ifdef HAVE_NETINET_IP_VAR_H
-# include <netinet/ip_var.h>
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
 #endif
 
-#include <netinet/ip6.h>
-#include <netinet/icmp6.h>
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NETDB_H
+# include <netdb.h>
+#endif
 
-#include <sys/time.h>
-#include <time.h>
+#if HAVE_NETINET_IN_SYSTM_H
+# include <netinet/in_systm.h>
+#endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#if HAVE_NETINET_IP_H
+# include <netinet/ip.h>
+#endif
+#if HAVE_NETINET_IP_ICMP_H
+# include <netinet/ip_icmp.h>
+#endif
+#ifdef HAVE_NETINET_IP_VAR_H
+# include <netinet/ip_var.h>
+#endif
+#if HAVE_NETINET_IP6_H
+# include <netinet/ip6.h>
+#endif
+#if HAVE_NETINET_ICMP6_H
+# include <netinet/icmp6.h>
+#endif
 
 #include "liboping.h"
 

diff --git a/src/liboping/liboping.h b/src/liboping/liboping.h
index 73d878c..065ae95 100644 (file)
--- a/src/liboping/liboping.h
+++ b/src/liboping/liboping.h
@@ -20,8 +20,19 @@
 #ifndef OCTO_PING_H
 #define OCTO_PING_H 1
 
-#include <stdlib.h>
-#include <unistd.h>
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
 
 /*
  * Type definitions