diff --git a/gnulib/lib/gettext.h b/gnulib/lib/gettext.h
line changes: +12/-7
index f15eb6a..18c62a4
--- a/gnulib/lib/gettext.h
+++ b/gnulib/lib/gettext.h

@@ -64,17 +64,22 @@
    On pre-ANSI systems without 'const', the config.h file is supposed to
    contain "#define const".  */
 # define gettext(Msgid) ((const char *) (Msgid))
-# define dgettext(Domainname, Msgid) ((const char *) (Msgid))
-# define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
+# define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid))
+# define dcgettext(Domainname, Msgid, Category) \
+    ((void) (Category), dgettext (Domainname, Msgid))
 # define ngettext(Msgid1, Msgid2, N) \
-    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+    ((N) == 1 \
+     ? ((void) (Msgid2), (const char *) (Msgid1)) \
+     : ((void) (Msgid1), (const char *) (Msgid2)))
 # define dngettext(Domainname, Msgid1, Msgid2, N) \
-    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+    ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
-    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+    ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
 # define textdomain(Domainname) ((const char *) (Domainname))
-# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
-# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
+# define bindtextdomain(Domainname, Dirname) \
+    ((void) (Domainname), (const char *) (Dirname))
+# define bind_textdomain_codeset(Domainname, Codeset) \
+    ((void) (Domainname), (const char *) (Codeset))
 
 #endif
 

diff --git a/gnulib/m4/gnulib-comp.m4 b/gnulib/m4/gnulib-comp.m4
line changes: +1/-0
index 7160c3f..2cf8ee0
--- a/gnulib/m4/gnulib-comp.m4
+++ b/gnulib/m4/gnulib-comp.m4

@@ -48,6 +48,7 @@ AC_DEFUN([gl_INIT],
   gl_GETOPT
   dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac.
   AM_GNU_GETTEXT_VERSION([0.15])
+  gl_INLINE
   gl_QUOTEARG
   AM_STDBOOL_H
   gl_HEADER_UNISTD

diff --git a/gnulib/m4/inline.m4 b/gnulib/m4/inline.m4
line changes: +11/-6
index 2810dd1..a07076c
--- a/gnulib/m4/inline.m4
+++ b/gnulib/m4/inline.m4

@@ -1,4 +1,4 @@
-# inline.m4 serial 2
+# inline.m4 serial 3
 dnl Copyright (C) 2006 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,

@@ -19,11 +19,16 @@ AC_DEFUN([gl_INLINE],
      else
        dnl GCC defines __NO_INLINE__ if not optimizing or if -fno-inline is
        dnl specified.
-       AC_EGREP_CPP([bummer], [
-         #ifdef __NO_INLINE__
-         bummer
-         #endif
-       ], [gl_cv_c_inline_effective=no], [gl_cv_c_inline_effective=yes])
+       dnl Use AC_COMPILE_IFELSE here, not AC_EGREP_CPP, because the result
+       dnl depends on optimization flags, which can be in CFLAGS.
+       dnl (AC_EGREP_CPP looks only at the CPPFLAGS.)
+       AC_COMPILE_IFELSE(
+         [AC_LANG_PROGRAM([[]],
+           [[#ifdef __NO_INLINE__
+               #error "inline is not effective"
+             #endif]])],
+         [gl_cv_c_inline_effective=yes],
+         [gl_cv_c_inline_effective=no])
      fi
     ])
   if test $gl_cv_c_inline_effective = yes; then

diff --git a/po/remove-potcdate.sed b/po/remove-potcdate.sed
line changes: +0/-11
index edb38d7..0000000
--- a/po/remove-potcdate.sed
+++ /dev/null

@@ -1,11 +0,0 @@
-/^"POT-Creation-Date: .*"$/{
-x
-s/P/P/
-ta
-g
-d
-bb
-:a
-x
-:b
-}