libmtp: fix build error with glibc 2.23

patches/21_fix_build_with_new_glibc.patch

Index: patches/21_fix_build_with_new_glibc.patch
diff --git a/patches/21_fix_build_with_new_glibc.patch b/patches/21_fix_build_with_new_glibc.patch
new file mode 100644
index 0000000000000000000000000000000000000000..afd9ea14d551b0a786e3da8823a8e4587d351579
--- /dev/null
+++ b/patches/21_fix_build_with_new_glibc.patch
@@ -0,0 +1,15 @@
+diff --git a/src/util.h b/src/util.h
+index 64c2d04..02be5bf 100644
+--- a/src/util.h
++++ b/src/util.h
+@@ -23,6 +23,10 @@
+ #ifndef __MTP__UTIL__H
+ #define __MTP__UTIL__H
+
++#ifdef HAVE_CONFIG_H
++#include "config.h"
++#endif
++
+ void data_dump(FILE *f, void *buf, uint32_t nbytes);
+ void data_dump_ascii (FILE *f, void *buf, uint32_t n, uint32_t dump_boundry);
+ #ifndef HAVE_STRNDUP