Added io.h include and check if available through cmake.

* io.h defines chmod on WIN32 systems.

CMakeLists.txt

@@ -210,6 +210,7 @@ CHECK_INCLUDE_FILE(unistd.h HAVE_UNISTD_H)
 CHECK_INCLUDE_FILE(dirent.h HAVE_DIRENT_H)
 CHECK_INCLUDE_FILE(stdbool.h HAVE_STDBOOL_H)
 CHECK_INCLUDE_FILE(process.h HAVE_PROCESS_H)
+CHECK_INCLUDE_FILE(io.h HAVE_IO_H)
 
 CHECK_FUNCTION_EXISTS(abs HAVE_ABS)
 CHECK_FUNCTION_EXISTS(memcpy HAVE_MEMCPY)

include/scl_cf_cmake.h.in

@@ -11,6 +11,7 @@
 #cmakedefine HAVE_DIRENT_H 1
 #cmakedefine HAVE_STDBOOL_H 1
 #cmakedefine HAVE_PROCESS_H 1
+#cmakedefine HAVE_IO_H 1
 
 #cmakedefine HAVE_ABS 1
 #cmakedefine HAVE_MEMCPY 1

src/exppp/exppp.c

@@ -12,6 +12,9 @@
 #else
 # include <scl_stdbool.h>
 #endif
+#ifdef HAVE_IO_H
+# include <io.h>
+#endif
 
 #ifdef __STDC__
 #include <stdarg.h>