Add some checks suggested by autoscan

config.h.in

@@ -68,6 +68,9 @@
 /* Define to 1 if you have the `rmdir' function. */
 #undef HAVE_RMDIR
 
+/* Define to 1 if you have the `setenv' function. */
+#undef HAVE_SETENV
+
 /* Define to 1 if stdbool.h conforms to C99. */
 #undef HAVE_STDBOOL_H
 
@@ -107,6 +110,9 @@
 /* Define to 1 if you have the <sys/param.h> header file. */
 #undef HAVE_SYS_PARAM_H
 
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#undef HAVE_SYS_SOCKET_H
+
 /* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 
@@ -181,6 +187,11 @@
    #define below would cause a syntax error. */
 #undef _UINT32_T
 
+/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT64_T
+
 /* Define for Solaris 2.5.1 so the uint8_t typedef from <sys/synch.h>,
    <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
    #define below would cause a syntax error. */
@@ -200,6 +211,10 @@
    such a type exists and the standard includes do not define it. */
 #undef int32_t
 
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int64_t
+
 /* Define to the type of a signed integer type of width exactly 8 bits if such
    a type exists and the standard includes do not define it. */
 #undef int8_t
@@ -216,6 +231,9 @@
 /* Define to `unsigned int' if <sys/types.h> does not define. */
 #undef size_t
 
+/* Define to `int' if <sys/types.h> does not define. */
+#undef ssize_t
+
 /* Define to the type of an unsigned integer type of width exactly 16 bits if
    such a type exists and the standard includes do not define it. */
 #undef uint16_t
@@ -224,6 +242,10 @@
    such a type exists and the standard includes do not define it. */
 #undef uint32_t
 
+/* Define to the type of an unsigned integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint64_t
+
 /* Define to the type of an unsigned integer type of width exactly 8 bits if
    such a type exists and the standard includes do not define it. */
 #undef uint8_t

configure.ac

@@ -18,12 +18,15 @@ AC_PROG_RANLIB
 AC_C_INLINE
 
 AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_INT8_T
 AC_TYPE_INT16_T
 AC_TYPE_INT32_T
-AC_TYPE_INT8_T
+AC_TYPE_INT64_T
+AC_TYPE_UINT8_T
 AC_TYPE_UINT16_T
 AC_TYPE_UINT32_T
-AC_TYPE_UINT8_T
+AC_TYPE_UINT64_T
 AC_TYPE_PID_T
 
 AC_FUNC_MMAP   
@@ -32,10 +35,11 @@ AC_FUNC_MALLOC
 AC_FUNC_REALLOC
 AC_FUNC_FORK
 AC_CHECK_FUNCS([strdup mkdir realpath rmdir strerror strcasecmp \
-                memset strchr strrchr strstr])
+                memset strchr strrchr strstr setenv])
 
 AC_HEADER_STDBOOL
-AC_CHECK_HEADERS([limits.h stddef.h fcntl.h libintl.h malloc.h])
+AC_CHECK_HEADERS([limits.h stddef.h fcntl.h libintl.h malloc.h \
+                  sys/socket.h])
 
 AX_LLVM_C([engine bitreader bitwriter])