regen with Autoconf 2.53c

diff --git a/configure b/configure
index e4a5341ff958ac949679f7344bd842b77247e77f..20f63671fdcad078d231763b05d04a80d42d8aac 100755 (executable)
--- a/configure
+++ b/configure
@@ -23,7 +23,6 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
-# NLS nuisances.
 # Support unset when possible.
 if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
@@ -31,31 +30,22 @@ else
   as_unset=false
 fi
 
-(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
-    { $as_unset LANG || test "${LANG+set}" != set; } ||
-      { LANG=C; export LANG; }
-(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
-    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
-      { LC_ALL=C; export LC_ALL; }
-(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
-    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
-      { LC_TIME=C; export LC_TIME; }
-(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
-    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
-      { LC_CTYPE=C; export LC_CTYPE; }
-(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
-    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
-      { LANGUAGE=C; export LANGUAGE; }
-(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
-    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
-      { LC_COLLATE=C; export LC_COLLATE; }
-(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
-    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
-      { LC_NUMERIC=C; export LC_NUMERIC; }
-(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
-    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
-      { LC_MESSAGES=C; export LC_MESSAGES; }
 
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in LANG LANGUAGE LC_ALL LC_COLLATE LC_CTYPE LC_NUMERIC LC_MESSAGES LC_TIME
+do
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    $as_unset $as_var
+  fi
+done
 
 # Required to use basename.
 if expr a : '\(a\)' >/dev/null 2>&1; then
@@ -97,7 +87,7 @@ if test "${PATH_SEPARATOR+set}" != set; then
   echo "#! /bin/sh" >conftest.sh
   echo  "exit 0"   >>conftest.sh
   chmod +x conftest.sh
-  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+  if (PATH="/nonexistent;."; conftest.sh) >/dev/null 2>&1; then
     PATH_SEPARATOR=';'
   else
     PATH_SEPARATOR=:
@@ -246,7 +236,7 @@ as_nl='
 IFS="  $as_nl"
 
 # CDPATH.
-$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
+$as_unset CDPATH
 
 
 # Name of the host.
@@ -705,6 +695,9 @@ if test ! -r $srcdir/$ac_unique_file; then
    { (exit 1); exit 1; }; }
   fi
 fi
+(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
+  { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
+   { (exit 1); exit 1; }; }
 srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
 ac_env_build_alias_set=${build_alias+set}
 ac_env_build_alias_value=$build_alias
@@ -1835,7 +1828,6 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
 
-# NLS nuisances.
 # Support unset when possible.
 if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
@@ -1843,31 +1835,22 @@ else
   as_unset=false
 fi
 
-(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
-    { $as_unset LANG || test "${LANG+set}" != set; } ||
-      { LANG=C; export LANG; }
-(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
-    { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
-      { LC_ALL=C; export LC_ALL; }
-(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
-    { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
-      { LC_TIME=C; export LC_TIME; }
-(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
-    { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
-      { LC_CTYPE=C; export LC_CTYPE; }
-(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
-    { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
-      { LANGUAGE=C; export LANGUAGE; }
-(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
-    { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
-      { LC_COLLATE=C; export LC_COLLATE; }
-(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
-    { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
-      { LC_NUMERIC=C; export LC_NUMERIC; }
-(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
-    { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
-      { LC_MESSAGES=C; export LC_MESSAGES; }
 
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in LANG LANGUAGE LC_ALL LC_COLLATE LC_CTYPE LC_NUMERIC LC_MESSAGES LC_TIME
+do
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    $as_unset $as_var
+  fi
+done
 
 # Required to use basename.
 if expr a : '\(a\)' >/dev/null 2>&1; then
@@ -1909,7 +1892,7 @@ if test "${PATH_SEPARATOR+set}" != set; then
   echo "#! /bin/sh" >conftest.sh
   echo  "exit 0"   >>conftest.sh
   chmod +x conftest.sh
-  if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+  if (PATH="/nonexistent;."; conftest.sh) >/dev/null 2>&1; then
     PATH_SEPARATOR=';'
   else
     PATH_SEPARATOR=:
@@ -2060,7 +2043,7 @@ as_nl='
 IFS="  $as_nl"
 
 # CDPATH.
-$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
+$as_unset CDPATH
 
 exec 6>&1