Include sys/sysmacros.h if present.

Needed for major/minor definitions.

Thanks Mike Frysinger for pointing this out.

configure.ac

@@ -37,7 +37,7 @@ PKG_PROG_PKG_CONFIG
 AC_HEADER_DIRENT
 AC_HEADER_STDC
 AC_CHECK_HEADERS(fcntl.h malloc.h inttypes.h sys/ioctl.h sys/mman.h \
-	ctype.h unistd.h locale.h byteswap.h endian.h)
+	sys/sysmacros.h ctype.h unistd.h locale.h byteswap.h endian.h)
 
 AC_CHECK_HEADERS(uuid/uuid.h,,[AC_MSG_ERROR([You need the uuid library.])])
 AC_CHECK_HEADER(libdevmapper.h,,[AC_MSG_ERROR([You need the device-mapper library.])])

lib/utils_devpath.c

@@ -31,6 +31,9 @@
 #include <limits.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#ifdef HAVE_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>     /* for major, minor */
+#endif
 #include "internal.h"
 
 static char *__lookup_dev(char *path, dev_t dev, int dir_level, const int max_level)

lib/utils_loop.c

@@ -28,6 +28,9 @@
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#ifdef HAVE_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>     /* for major, minor */
+#endif
 #include <linux/loop.h>
 
 #include "utils_loop.h"

lib/utils_wipe.c

@@ -29,6 +29,9 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#ifdef HAVE_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>     /* for major, minor */
+#endif
 #include <fcntl.h>
 
 #include "libcryptsetup.h"