Subject: [PATCH] Quote 'like this', not `like this'.

From: Paul Eggert <[email-masked]>
Date: Fri, 06 Jan 2012 00:30:56 -0800

This proposed patch follows up on recent changes to the GNU coding
standards.  They now suggest that we should quote 'like this' or
"like this" instead of `like this'; see
<http://www.gnu.org/prep/standards/html_node/Quote-Characters.html>.

Gnulib is being changed accordingly, and Gnulib imports some files
directly from Automake master, so here is a proposed patch to Automake
master so that these files use the straight-up style.  This patch
affects only commentary and quoting in diagnostics.

>From f78c4d9a1fc2705badae4ce4ebf46d5d1c8209e0 Mon Sep 17 00:00:00 2001
From: Paul Eggert <[email-masked]>
Date: Fri, 6 Jan 2012 00:24:26 -0800
Subject: [PATCH] Quote 'like this', not `like this'.

---
 lib/ar-lib        |    2 +-
 lib/compile       |   22 ++++++------
 lib/depcomp       |   40 ++++++++++----------
 lib/elisp-comp    |    8 ++--
 lib/gnupload      |   12 +++---
 lib/install-sh    |   10 +++---
 lib/mdate-sh      |   12 +++---
 lib/missing       |  102 ++++++++++++++++++++++++++--------------------------
 lib/mkinstalldirs |    4 +-
 lib/ylwrap        |    8 ++--
 10 files changed, 110 insertions(+), 110 deletions(-)

diff --git a/lib/ar-lib b/lib/ar-lib
index 1a1dbd0..85d028f 100755
--- a/lib/ar-lib
+++ b/lib/ar-lib
@@ -98,7 +98,7 @@ func_at_file ()
 
 case $1 in
   '')
-     func_error "no command.  Try \`$0 --help' for more information."
+     func_error "no command.  Try '$0 --help' for more information."
      ;;
   -h | --h*)
     cat <<EOF
diff --git a/lib/compile b/lib/compile
index b246777..b1f4749 100755
--- a/lib/compile
+++ b/lib/compile
@@ -1,5 +1,5 @@
 #! /bin/sh
-# Wrapper for compilers which do not understand `-c -o'.
+# Wrapper for compilers which do not understand '-c -o'.
 
 scriptversion=2012-01-04.17; # UTC
 
@@ -94,7 +94,7 @@ func_cl_wrapper ()
     else
       case $1 in
 	-o)
-	  # configure might choose to run compile as `compile cc -o foo foo.c'.
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
 	  eat=1
 	  case $2 in
 	    *.o | *.[oO][bB][jJ])
@@ -196,19 +196,19 @@ eat=
 
 case $1 in
   '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
      exit 1;
      ;;
   -h | --h*)
     cat <<\EOF
 Usage: compile [--help] [--version] PROGRAM [ARGS]
 
-Wrapper for compilers which do not understand `-c -o'.
-Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
 arguments, and rename the output as expected.
 
 If you are trying to build a whole package this is not the
-right script to run: please start by reading the file `INSTALL'.
+right script to run: please start by reading the file 'INSTALL'.
 
 Report bugs to <[email-masked]>.
 EOF
@@ -233,8 +233,8 @@ do
   else
     case $1 in
       -o)
-	# configure might choose to run compile as `compile cc -o foo foo.c'.
-	# So we strip `-o arg' only if arg is an object.
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
 	eat=1
 	case $2 in
 	  *.o | *.obj)
@@ -261,10 +261,10 @@ do
 done
 
 if test -z "$ofile" || test -z "$cfile"; then
-  # If no `-o' option was seen then we might have been invoked from a
+  # If no '-o' option was seen then we might have been invoked from a
   # pattern rule where we don't need one.  That is ok -- this is a
   # normal compilation that the losing compiler can handle.  If no
-  # `.c' file was seen then we are probably linking.  That is also
+  # '.c' file was seen then we are probably linking.  That is also
   # ok.
   exec "$@"
 fi
@@ -273,7 +273,7 @@ fi
 cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
 
 # Create the lock directory.
-# Note: use `[/\\:.-]' here to ensure that we don't use the same name
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
 # that we are using for the .o file.  Also, base the name on the expected
 # object file name, since that is what matters with a parallel build.
 lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
diff --git a/lib/depcomp b/lib/depcomp
index bd0ac08..ff4e08f 100755
--- a/lib/depcomp
+++ b/lib/depcomp
@@ -28,7 +28,7 @@ scriptversion=2011-12-04.11; # UTC
 
 case $1 in
   '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
      exit 1;
      ;;
   -h | --h*)
@@ -40,8 +40,8 @@ as side-effects.
 
 Environment variables:
   depmode     Dependency tracking mode.
-  source      Source file read by `PROGRAMS ARGS'.
-  object      Object file output by `PROGRAMS ARGS'.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
   DEPDIR      directory where to store dependencies.
   depfile     Dependency file to output.
   tmpdepfile  Temporary file to use when outputting dependencies.
@@ -156,7 +156,7 @@ gcc)
 ## The second -e expression handles DOS-style file names with drive letters.
   sed -e 's/^[^:]*: / /' \
       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
+## This next piece of magic avoids the "deleted header file" problem.
 ## The problem is that when a header file which appears in a .P file
 ## is deleted, the dependency causes make to die (because there is
 ## typically no way to rebuild the header).  We avoid this by adding
@@ -164,7 +164,7 @@ gcc)
 ## this for us directly.
   tr ' ' '
 ' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'.  On the theory
+## Some versions of gcc put a space before the ':'.  On the theory
 ## that the space means something, we add a space to the output as
 ## well.  hp depmode also adds that space, but also prefixes the VPATH
 ## to the object.  Take care to not repeat it in the output.
@@ -203,7 +203,7 @@ sgi)
     # clever and replace this with sed code, as IRIX sed won't handle
     # lines with more than a fixed number of characters (4096 in
     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like `#:fec' to the end of the
+    # the IRIX cc adds comments like '#:fec' to the end of the
     # dependency line.
     tr ' ' '
 ' < "$tmpdepfile" \
@@ -229,7 +229,7 @@ sgi)
 aix)
   # The C for AIX Compiler uses -M and outputs the dependencies
   # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
   # start of each line; $object doesn't have directory information.
   # Version 6 uses the directory in both cases.
   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
@@ -259,9 +259,9 @@ aix)
     test -f "$tmpdepfile" && break
   done
   if test -f "$tmpdepfile"; then
-    # Each line is of the form `foo.o: dependent.h'.
+    # Each line is of the form 'foo.o: dependent.h'.
     # Do two passes, one to just change these to
-    # `$object: dependent.h' and one to simply `dependent.h:'.
+    # '$object: dependent.h' and one to simply 'dependent.h:'.
     sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
     # That's a tab and a space in the [].
     sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
@@ -275,7 +275,7 @@ aix)
   ;;
 
 icc)
-  # Intel's C compiler understands `-MD -MF file'.  However on
+  # Intel's C compiler understands '-MD -MF file'.  However on
   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
   # ICC 7.0 will fill foo.d with something like
   #    foo.o: sub/foo.c
@@ -300,10 +300,10 @@ icc)
     exit $stat
   fi
   rm -f "$depfile"
-  # Each line is of the form `foo.o: dependent.h',
-  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Each line is of the form 'foo.o: dependent.h',
+  # or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'.
   # Do two passes, one to just change these to
-  # `$object: dependent.h' and one to simply `dependent.h:'.
+  # '$object: dependent.h' and one to simply 'dependent.h:'.
   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
   # Some versions of the HPUX 10.20 sed can't process this invocation
   # correctly.  Breaking it into two sed invocations is a workaround.
@@ -344,7 +344,7 @@ hp2)
   done
   if test -f "$tmpdepfile"; then
     sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add `dependent.h:' lines.
+    # Add 'dependent.h:' lines.
     sed -ne '2,${
 	       s/^ *//
 	       s/ \\*$//
@@ -359,9 +359,9 @@ hp2)
 
 tru64)
    # The Tru64 compiler uses -MD to generate dependencies as a side
-   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-   # dependencies in `foo.d' instead, so we check for that too.
+   # dependencies in 'foo.d' instead, so we check for that too.
    # Subdirectories are respected.
    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
    test "x$dir" = "x$object" && dir=
@@ -478,7 +478,7 @@ dashmstdout)
     shift
   fi
 
-  # Remove `-o $object'.
+  # Remove '-o $object'.
   IFS=" "
   for arg
   do
@@ -498,9 +498,9 @@ dashmstdout)
   done
 
   test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for `:'
+  # Require at least two characters before searching for ':'
   # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
   "$@" $dashmflag |
     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
   rm -f "$depfile"
@@ -583,7 +583,7 @@ cpp)
     shift
   fi
 
-  # Remove `-o $object'.
+  # Remove '-o $object'.
   IFS=" "
   for arg
   do
diff --git a/lib/elisp-comp b/lib/elisp-comp
index ecc6b15..4e9cccd 100755
--- a/lib/elisp-comp
+++ b/lib/elisp-comp
@@ -30,16 +30,16 @@ scriptversion=2010-02-06.18; # UTC
 
 case $1 in
   '')
-     echo "$0: No files.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No files.  Try '$0 --help' for more information." 1>&2
      exit 1;
      ;;
   -h | --h*)
     cat <<\EOF
 Usage: elisp-comp [--help] [--version] FILES...
 
-This script byte-compiles all `.el' files listed as FILES using GNU
-Emacs, and put the resulting `.elc' files into the current directory,
-so disregarding the original directories used in `.el' arguments.
+This script byte-compiles all '.el' files listed as FILES using GNU
+Emacs, and put the resulting '.elc' files into the current directory,
+so disregarding the original directories used in '.el' arguments.
 
 This script manages in such a way that all Emacs LISP files to
 be compiled are made visible between themselves, in the event
diff --git a/lib/gnupload b/lib/gnupload
index edb4b56..209f875 100755
--- a/lib/gnupload
+++ b/lib/gnupload
@@ -57,7 +57,7 @@ Options:
   --version                output version information and exit
 
 If --symlink-regex is given without EXPR, then the link target name
-is created by replacing the version information with \`-latest', e.g.:
+is created by replacing the version information with '-latest', e.g.:
 
   foo-1.3.4.tar.gz -> foo-latest.tar.gz
 
@@ -170,7 +170,7 @@ while test -n "$1"; do
       break
       ;;
     -*)
-      echo "$0: Unknown option \`$1', try \`$0 --help'" 1>&2
+      echo "$0: Unknown option '$1', try '$0 --help'" 1>&2
       exit 1
       ;;
     esac
@@ -219,7 +219,7 @@ else
   for file
   do
     if test ! -f $file; then
-      echo "$0: Cannot find \`$file'" 1>&2
+      echo "$0: Cannot find '$file'" 1>&2
       exit 1
     elif test -n "$symlink_expr"; then
       linkname=`echo $file | sed "$symlink_expr"`
@@ -238,10 +238,10 @@ fi
 unset passphrase
 
 # Reset PATH to be sure that echo is a built-in.  We will later use
-# `echo $passphrase' to output the passphrase, so it is important that
-# it is a built-in (third-party programs tend to appear in `ps'
+# 'echo $passphrase' to output the passphrase, so it is important that
+# it is a built-in (third-party programs tend to appear in 'ps'
 # listings with their arguments...).
-# Remember this script runs with `set -e', so if echo is not built-in
+# Remember this script runs with 'set -e', so if echo is not built-in
 # it will exit now.
 PATH=/empty echo -n "Enter GPG passphrase: "
 stty -echo
diff --git a/lib/install-sh b/lib/install-sh
index 64c4b3e..377bb86 100755
--- a/lib/install-sh
+++ b/lib/install-sh
@@ -35,7 +35,7 @@ scriptversion=2011-11-20.07; # UTC
 # FSF changes to this file are in the public domain.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
+# 'make' implicit rules from creating a file called install from it
 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
@@ -156,7 +156,7 @@ while test $# -ne 0; do
     -s) stripcmd=$stripprog;;
 
     -t) dst_arg=$2
-	# Protect names problematic for `test' and other utilities.
+	# Protect names problematic for 'test' and other utilities.
 	case $dst_arg in
 	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
 	esac
@@ -190,7 +190,7 @@ if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
     fi
     shift # arg
     dst_arg=$arg
-    # Protect names problematic for `test' and other utilities.
+    # Protect names problematic for 'test' and other utilities.
     case $dst_arg in
       -* | [=\(\)!]) dst_arg=./$dst_arg;;
     esac
@@ -202,7 +202,7 @@ if test $# -eq 0; then
     echo "$0: no input file specified." >&2
     exit 1
   fi
-  # It's OK to call `install-sh -d' without argument.
+  # It's OK to call 'install-sh -d' without argument.
   # This can happen when creating conditional directories.
   exit 0
 fi
@@ -240,7 +240,7 @@ fi
 
 for src
 do
-  # Protect names problematic for `test' and other utilities.
+  # Protect names problematic for 'test' and other utilities.
   case $src in
     -* | [=\(\)!]) src=./$src;;
   esac
diff --git a/lib/mdate-sh b/lib/mdate-sh
index 60dc485..3e0858e 100755
--- a/lib/mdate-sh
+++ b/lib/mdate-sh
@@ -40,7 +40,7 @@ fi
 
 case $1 in
   '')
-     echo "$0: No file.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No file.  Try '$0 --help' for more information." 1>&2
      exit 1;
      ;;
   -h | --h*)
@@ -76,7 +76,7 @@ LC_TIME=C
 export LC_TIME
 
 # GNU ls changes its time format in response to the TIME_STYLE
-# variable.  Since we cannot assume `unset' works, revert this
+# variable.  Since we cannot assume 'unset' works, revert this
 # variable to its documented default.
 if test "${TIME_STYLE+set}" = set; then
   TIME_STYLE=posix-long-iso
@@ -96,14 +96,14 @@ if ls -n /dev/null 1>/dev/null 2>&1; then
   ls_command="$ls_command -n"
 fi
 
-# A `ls -l' line looks as follows on OS/2.
+# A 'ls -l' line looks as follows on OS/2.
 #  drwxrwx---        0 Aug 11  2001 foo
 # This differs from Unix, which adds ownership information.
 #  drwxrwx---   2 root  root      4096 Aug 11  2001 foo
 #
 # To find the date, we split the line on spaces and iterate on words
 # until we find a month.  This cannot work with files whose owner is a
-# user named `Jan', or `Feb', etc.  However, it's unlikely that `/'
+# user named "Jan", or "Feb", etc.  However, it's unlikely that '/'
 # will be owned by a user whose name is a month.  So we first look at
 # the extended ls output of the root directory to decide how many
 # words should be skipped to get the date.
@@ -116,7 +116,7 @@ month=
 command=
 until test $month
 do
-  test $# -gt 0 || error "failed parsing \`$ls_command /' output"
+  test $# -gt 0 || error "failed parsing '$ls_command /' output"
   shift
   # Add another shift to the command.
   command="$command shift;"
@@ -136,7 +136,7 @@ do
   esac
 done
 
-test -n "$month" || error "failed parsing \`$ls_command /' output"
+test -n "$month" || error "failed parsing '$ls_command /' output"
 
 # Get the extended ls output of the file or directory.
 set dummy x`eval "$ls_command \"\\\$save_arg1\""`
diff --git a/lib/missing b/lib/missing
index 1039955..6ded3a8 100755
--- a/lib/missing
+++ b/lib/missing
@@ -26,7 +26,7 @@ scriptversion=2011-12-22.11; # UTC
 # the same distribution terms that you use for the rest of that program.
 
 if test $# -eq 0; then
-  echo 1>&2 "Try \`$0 --help' for more information"
+  echo 1>&2 "Try '$0 --help' for more information"
   exit 1
 fi
 
@@ -34,7 +34,7 @@ run=:
 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
 
-# In the cases where this matters, `missing' is being run in the
+# In the cases where this matters, 'missing' is being run in the
 # srcdir already.
 if test -f configure.ac; then
   configure_ac=configure.ac
@@ -65,7 +65,7 @@ case $1 in
     echo "\
 $0 [OPTION]... PROGRAM [ARGUMENT]...
 
-Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
 error status if there is no known handling for PROGRAM.
 
 Options:
@@ -74,21 +74,21 @@ Options:
   --run           try to run the given command, and emulate it if it fails
 
 Supported PROGRAM values:
-  aclocal      touch file \`aclocal.m4'
-  autoconf     touch file \`configure'
-  autoheader   touch file \`config.h.in'
+  aclocal      touch file 'aclocal.m4'
+  autoconf     touch file 'configure'
+  autoheader   touch file 'config.h.in'
   autom4te     touch the output file, or create a stub one
-  automake     touch all \`Makefile.in' files
-  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
-  flex         create \`lex.yy.c', if possible, from existing .c
+  automake     touch all 'Makefile.in' files
+  bison        create 'y.tab.[ch]', if possible, from existing .[ch]
+  flex         create 'lex.yy.c', if possible, from existing .c
   help2man     touch the output file
-  lex          create \`lex.yy.c', if possible, from existing .c
+  lex          create 'lex.yy.c', if possible, from existing .c
   makeinfo     touch the output file
   tar          try tar, gnutar, gtar, then tar without non-portable flags
-  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
+  yacc         create 'y.tab.[ch]', if possible, from existing .[ch]
 
-Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
-\`g' are ignored when checking the name.
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
 
 Send bug reports to <[email-masked]>."
     exit $?
@@ -100,8 +100,8 @@ Send bug reports to <[email-masked]>."
     ;;
 
   -*)
-    echo 1>&2 "$0: Unknown \`$1' option"
-    echo 1>&2 "Try \`$0 --help' for more information"
+    echo 1>&2 "$0: Unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
     exit 1
     ;;
 
@@ -124,7 +124,7 @@ case $1 in
 
   tar*)
     if test -n "$run"; then
-       echo 1>&2 "ERROR: \`tar' requires --run"
+       echo 1>&2 "ERROR: 'tar' requires --run"
        exit 1
     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
        exit 1
@@ -137,7 +137,7 @@ case $1 in
        exit 1
     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
        # Could not run --version or --help.  This is probably someone
-       # running `$TOOL --version' or `$TOOL --help' to check whether
+       # running '$TOOL --version' or '$TOOL --help' to check whether
        # $TOOL exists and not knowing $TOOL uses missing.
        exit 1
     fi
@@ -149,27 +149,27 @@ esac
 case $program in
   aclocal*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
-         to install the \`Automake' and \`Perl' packages.  Grab them from
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'acinclude.m4' or '${configure_ac}'.  You might want
+         to install the Automake and Perl packages.  Grab them from
          any GNU archive site."
     touch aclocal.m4
     ;;
 
   autoconf*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`${configure_ac}'.  You might want to install the
-         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+WARNING: '$1' is $msg.  You should only need it if
+         you modified '${configure_ac}'.  You might want to install the
+         Autoconf and GNU m4 packages.  Grab them from any GNU
          archive site."
     touch configure
     ;;
 
   autoheader*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
-         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'acconfig.h' or '${configure_ac}'.  You might want
+         to install the Autoconf and GNU m4 packages.  Grab them
          from any GNU archive site."
     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
     test -z "$files" && files="config.h"
@@ -186,9 +186,9 @@ WARNING: \`$1' is $msg.  You should only need it if
 
   automake*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
-         You might want to install the \`Automake' and \`Perl' packages.
+WARNING: '$1' is $msg.  You should only need it if
+         you modified 'Makefile.am', 'acinclude.m4' or '${configure_ac}'.
+         You might want to install the Automake and Perl packages.
          Grab them from any GNU archive site."
     find . -type f -name Makefile.am -print |
 	   sed 's/\.am$/.in/' |
@@ -197,10 +197,10 @@ WARNING: \`$1' is $msg.  You should only need it if
 
   autom4te*)
     echo 1>&2 "\
-WARNING: \`$1' is needed, but is $msg.
+WARNING: '$1' is needed, but is $msg.
          You might have modified some files without having the
          proper tools for further handling them.
-         You can get \`$1' as part of \`Autoconf' from any GNU
+         You can get '$1' as part of Autoconf from any GNU
          archive site."
 
     file=`echo "$*" | sed -n "$sed_output"`
@@ -220,10 +220,10 @@ WARNING: \`$1' is needed, but is $msg.
 
   bison*|yacc*)
     echo 1>&2 "\
-WARNING: \`$1' $msg.  You should only need it if
-         you modified a \`.y' file.  You may need the \`Bison' package
+WARNING: '$1' $msg.  You should only need it if
+         you modified a '.y' file.  You may need the Bison package
          in order for those modifications to take effect.  You can get
-         \`Bison' from any GNU archive site."
+         Bison from any GNU archive site."
     rm -f y.tab.c y.tab.h
     if test $# -ne 1; then
         eval LASTARG=\${$#}
@@ -250,10 +250,10 @@ WARNING: \`$1' $msg.  You should only need it if
 
   lex*|flex*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.l' file.  You may need the \`Flex' package
+WARNING: '$1' is $msg.  You should only need it if
+         you modified a '.l' file.  You may need the Flex package
          in order for those modifications to take effect.  You can get
-         \`Flex' from any GNU archive site."
+         Flex from any GNU archive site."
     rm -f lex.yy.c
     if test $# -ne 1; then
         eval LASTARG=\${$#}
@@ -273,10 +273,10 @@ WARNING: \`$1' is $msg.  You should only need it if
 
   help2man*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
+WARNING: '$1' is $msg.  You should only need it if
 	 you modified a dependency of a manual page.  You may need the
-	 \`Help2man' package in order for those modifications to take
-	 effect.  You can get \`Help2man' from any GNU archive site."
+	 Help2man package in order for those modifications to take
+	 effect.  You can get Help2man from any GNU archive site."
 
     file=`echo "$*" | sed -n "$sed_output"`
     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
@@ -291,12 +291,12 @@ WARNING: \`$1' is $msg.  You should only need it if
 
   makeinfo*)
     echo 1>&2 "\
-WARNING: \`$1' is $msg.  You should only need it if
-         you modified a \`.texi' or \`.texinfo' file, or any other file
+WARNING: '$1' is $msg.  You should only need it if
+         you modified a '.texi' or '.texinfo' file, or any other file
          indirectly affecting the aspect of the manual.  The spurious
-         call might also be the consequence of using a buggy \`make' (AIX,
-         DU, IRIX).  You might want to install the \`Texinfo' package or
-         the \`GNU make' package.  Grab either from any GNU archive site."
+         call might also be the consequence of using a buggy 'make' (AIX,
+         DU, IRIX).  You might want to install the Texinfo package or
+         the GNU make package.  Grab either from any GNU archive site."
     # The file to touch is that specified with -o ...
     file=`echo "$*" | sed -n "$sed_output"`
     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
@@ -325,12 +325,12 @@ WARNING: \`$1' is $msg.  You should only need it if
     for cmd in gnutar gtar; do
       ($cmd --version) > /dev/null 2>&1 || continue
       echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
-         Trying to use GNU tar (\"$cmd\") instead ..."
+WARNING: I can't seem to be able to run 'tar' with the given arguments.
+         Trying to use GNU tar ('$cmd') instead ..."
       exec $cmd "$@"
     done
     echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
+WARNING: I can't seem to be able to run 'tar' with the given arguments.
          You may want to install GNU tar or Free paxutils, or check the
          command line arguments."
     exit 1
@@ -338,12 +338,12 @@ WARNING: I can't seem to be able to run \`tar' with the given arguments.
 
   *)
     echo 1>&2 "\
-WARNING: \`$1' is needed, and is $msg.
+WARNING: '$1' is needed, and is $msg.
          You might have modified some files without having the
-         proper tools for further handling them.  Check the \`README' file,
+         proper tools for further handling them.  Check the 'README' file,
          it often tells you about the needed prerequisites for installing
          this package.  You may also peek at any GNU archive site, in case
-         some other package would contain this missing \`$1' program."
+         some other package would contain this missing '$1' program."
     exit 1
     ;;
 esac
diff --git a/lib/mkinstalldirs b/lib/mkinstalldirs
index 4191a45..55d537f 100755
--- a/lib/mkinstalldirs
+++ b/lib/mkinstalldirs
@@ -81,9 +81,9 @@ case $dirmode in
       echo "mkdir -p -- $*"
       exec mkdir -p -- "$@"
     else
-      # On NextStep and OpenStep, the `mkdir' command does not
+      # On NextStep and OpenStep, the 'mkdir' command does not
       # recognize any option.  It will interpret all options as
-      # directories to create, and then abort because `.' already
+      # directories to create, and then abort because '.' already
       # exists.
       test -d ./-p && rmdir ./-p
       test -d ./--version && rmdir ./--version
diff --git a/lib/ylwrap b/lib/ylwrap
index 9253635..a8a08fd 100755
--- a/lib/ylwrap
+++ b/lib/ylwrap
@@ -32,7 +32,7 @@ scriptversion=2011-08-25.18; # UTC
 
 case "$1" in
   '')
-    echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
+    echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
     exit 1
     ;;
   --basedir)
@@ -129,7 +129,7 @@ if test $ret -eq 0; then
   # The directory holding the input.
   input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
   # Quote $INPUT_DIR so we can use it in a regexp.
-  # FIXME: really we should care about more than `.' and `\'.
+  # FIXME: really we should care about more than '.' and '\'.
   input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
 
   while test "$#" -ne 0; do
@@ -146,7 +146,7 @@ if test $ret -eq 0; then
     fi
     if test -f "$from"; then
       # If $2 is an absolute path name, then just use that,
-      # otherwise prepend `../'.
+      # otherwise prepend '../'.
       case "$2" in
         [\\/]* | ?:[\\/]*) target="$2";;
         *) target="../$2";;
@@ -162,7 +162,7 @@ if test $ret -eq 0; then
         realtarget="$target"
         target="tmp-`echo $target | sed s/.*[\\/]//g`"
       fi
-      # Edit out `#line' or `#' directives.
+      # Edit out '#line' or '#' directives.
       #
       # We don't want the resulting debug information to point at
       # an absolute srcdir; it is better for it to just mention the
-- 
1.7.6.5