Update

+Makefile
+Makefile.in
 codeset.m4
 gettext.m4
 glibc21.m4
+gmailboxc2.m4
 iconv.m4
 intdiv0.m4
 intmax.m4

@@ -18,15 +18,9 @@ gl_XALLOC
 # xalloc
 gl_XALLOC
 
-# fnmatch
-# No macro. You should also use one of fnmatch-posix or fnmatch-gnu.
-
 # getpass-gnu
 gl_FUNC_GETPASS_GNU
 
-# malloc
-AC_FUNC_MALLOC
-
 # mbswidth
 gl_MBSWIDTH
 
@@ -75,20 +69,35 @@ gl_FUNC_STRTOK_R
 # md5
 gl_MD5
 
+# glob
+gl_GLOB
+
 # extensions
 dnl gl_USE_SYSTEM_EXTENSIONS must be added quite early to configure.ac.
 
+# fnmatch
+# No macro. You should also use one of fnmatch-posix or fnmatch-gnu.
+
 # getdelim
 gl_FUNC_GETDELIM
 
+# getlogin_r
+gl_GETLOGIN_R
+
 # getopt
 gl_GETOPT
 
 # gettext-h
 
+# malloc
+AC_FUNC_MALLOC
+
 # mbchar
 gl_MBCHAR
 
+# mbuiter
+gl_MBITER
+
 # memchr
 gl_FUNC_MEMCHR
 
@@ -104,15 +113,24 @@ gl_C_RESTRICT
 # size_max
 gl_SIZE_MAX
 
+# stat-macros
+gl_STAT_MACROS
+
 # stdbool
 AM_STDBOOL_H
 
+# stdint
+gl_STDINT_H
+
 # strcase
 gl_STRCASE
 
 # strchrnul
 gl_FUNC_STRCHRNUL
 
+# strdup
+gl_FUNC_STRDUP
+
 # strndup
 gl_FUNC_STRNDUP
 
@@ -124,9 +142,6 @@ gl_FUNC_STRNLEN
 # sysexits
 gl_SYSEXITS
 
-# unlocked-io
-gl_FUNC_GLIBC_UNLOCKED_IO
-
 # vasnprintf
 gl_FUNC_VASNPRINTF
 

@@ -20,6 +20,7 @@ AC_SUBST(MU_LIBOBJS)
 AC_SUBST(MU_EXTRA_DIST)
 
 AC_DEFUN([MU_LIBSOURCES],[])
+AC_DEFUN([MU_LIBSOURCE],[])
 
 AC_DEFUN([MU_LIBOBJ],[
  MU_LIBOBJS="$MU_LIBOBJS $1.o"])
@@ -29,7 +30,9 @@ AC_DEFUN([MU_CHECK_FUNC],[
       [MU_LIBOBJ($1)])])
 
 AC_DEFUN([MU_REPLACE_FUNCS],
-[AC_CHECK_FUNCS([$1], , [MU_LIBOBJ($ac_func)])
+[AC_CHECK_FUNCS([$1], , [dnl
+ MU_LIBOBJ($ac_func)
+ AC_DEFINE($ac_func, [mu_repl_]$ac_func, [Define to a replacement function name for ]$ac_func)])
 ])
 
 AC_SUBST(GNU_INCLS)