--- a/config/stdint.m4	Sun Aug 21 07:07:55 2011 +0900
+++ b/config/stdint.m4	Fri Oct 27 22:46:09 2017 +0900
@@ -18,7 +18,7 @@
 dnl existence of an include file <stdint.h> that defines a set of
 dnl typedefs, especially uint8_t,int32_t,uintptr_t.
 dnl Many older installations will not provide this file, but some will
-dnl have the very same definitions in <inttypes.h>. In other enviroments
+dnl have the very same definitions in <inttypes.h>. In other environments
 dnl we can use the inet-types in <sys/types.h> which would define the
 dnl typedefs int8_t and u_int8_t respectivly.
 dnl
@@ -39,7 +39,7 @@
 dnl create an installable file mylib-int.h that all your other installable
 dnl header may include. So, for a library package named "mylib", just use
 dnl      GCC_HEADER_STDINT(mylib-int.h)
-dnl in configure.in and install that header file in Makefile.am along with
+dnl in configure.ac and install that header file in Makefile.am along with
 dnl the other headers (mylib.h).  The mylib-specific headers can simply
 dnl use "#include <mylib-int.h>" to obtain the stdint-types.
 dnl