diff --git a/ble.pp b/ble.pp
index cf81c2de..1a1fc88d 100644
--- a/ble.pp
+++ b/ble.pp
@@ -1,7 +1,6 @@
 #!/bin/bash
 #%$> out/ble.sh
 #%[release = 1]
-#%[use_gawk = 0]
 #%[measure_load_time = 0]
 #%[debug_keylogger = 1]
 #%#----------------------------------------------------------------------------
@@ -214,14 +213,6 @@ function ble/.check-environment {
     echo "ble.sh: modified PATH=\$PATH${PATH:${#original_path}}" >&2
   fi
 
-#%if use_gawk
-  if ! type gawk &>/dev/null; then
-    echo "ble.sh: \`gawk' not found. Please install gawk (GNU awk), or check your environment variable PATH." >&2
-    return 1
-  fi
-  ble/bin/.default-utility-path gawk
-#%end
-
   # 暫定的な ble/bin/$cmd 設定
   ble/bin/.default-utility-path "${_ble_init_posix_command_list[@]}"
 
@@ -239,6 +230,21 @@ function ble/.check-environment {
   fi
 fi
 
+_ble_bin_awk_solaris_xpg4=
+function ble/bin/awk.use-solaris-xpg4 {
+  if [[ ! $_ble_bin_awk_solaris_xpg4 ]]; then
+    if [[ $OSTYPE == solaris* ]] && type /usr/xpg4/bin/awk >/dev/null; then
+      _ble_bin_awk_solaris_xpg4=yes
+    else
+      _ble_bin_awk_solaris_xpg4=no
+    fi
+  fi
+
+  # Solaris の既定の awk は絶望的なので /usr/xpg4/bin/awk (nawk) を使う
+  [[ $_ble_bin_awk_solaris_xpg4 == yes ]] &&
+    function ble/bin/awk { /usr/xpg4/bin/awk "$@"; }
+}
+
 #------------------------------------------------------------------------------
 #%$ echo "BLE_VERSION=$FULLVER+$(git show -s --format=%h)"
 function ble/base/initialize-version-information {
@@ -558,14 +564,16 @@ function ble-update {
 }
 #%end
 
+# Solaris: src/util の中でちゃんとした awk が必要
+ble/bin/awk.use-solaris-xpg4
+
 #%x inc.r|@|src/def|
 #%x inc.r|@|src/util|
 
 ble/bin/.freeze-utility-path "${_ble_init_posix_command_list[@]}" # <- this uses ble/util/assign.
-#%if use_gawk
-ble/bin/.freeze-utility-path gawk
-#%end
 ble/bin/.freeze-utility-path man
+# Solaris: .freeze-utility-path で上書きされた awk を戻す
+ble/bin/awk.use-solaris-xpg4
 
 #%x inc.r|@|src/decode|
 #%x inc.r|@|src/color|
diff --git a/src/decode.sh b/src/decode.sh
index 069fc70a..92a2595f 100644
--- a/src/decode.sh
+++ b/src/decode.sh
@@ -2082,23 +2082,25 @@ function ble-decode-bind/.generate-source-to-unbind-default {
     fi
     echo '__BINDP__'
     builtin bind -sp
-#%x
   } | LC_ALL=C ble-decode-bind/.generate-source-to-unbind-default/.process
 
   # Note: 2>/dev/null は、(1) bind -X のエラーメッセージ、及び、
   # (2) LC_ALL 復元時のエラーメッセージ (外側の値が不正な時) を捨てる為に必要。
 } 2>/dev/null
 function ble-decode-bind/.generate-source-to-unbind-default/.process {
-  ble/bin/${.eval/use_gawk?"gawk":"awk"} -v apos="'" '
-#%end.i
+  local q=\' b=\\ Q="'\''"
+  # Note: Solaris xpg4 awk では gsub の置換後のエスケープシーケンスも処理される
+  [[ $_ble_bin_awk_solaris_xpg4 == yes ]] && Q="'$b$b''"
+  local QUOT_Q=\"${Q//"$b"/$b$b}\"
+  ble/bin/awk -v q="$q" '
     BEGIN {
-      APOS = apos "\\" apos apos;
+      Q = '"$QUOT_Q"';
       mode = 1;
     }
 
     function quote(text) {
-      gsub(apos, APOS, text);
-      return apos text apos;
+      gsub(q, Q, text);
+      return q text q;
     }
 
     function unescape_control_modifier(str, _, i, esc, chr) {
@@ -2157,27 +2159,12 @@ function ble-decode-bind/.generate-source-to-unbind-default/.process {
 
 #%    # ※bash-4.3 では bind -r しても bind -X に残る。
 #%    #   再登録を防ぐ為 ble-decode-bind を明示的に避ける
-#%if use_gawk
-      if (line ~ /\yble-decode\/.hook\y/) next;
-#%else
       if (line ~ /(^|[^[:alnum:]])ble-decode\/.hook($|[^[:alnum:]])/) next;
-#%end
 
 #%    # ※bind -X で得られた物は直接 bind -x に用いる事はできない。
 #%    #   コマンド部分の "" を外して中の escape を外す必要がある。
 #%    #   escape には以下の種類がある: \C-a など \C-? \e \\ \"
 #%    #     \n\r\f\t\v\b\a 等は使われない様だ。
-#%if use_gawk
-      if (match(line, /^("([^"\\]|\\.)*":) "(([^"\\]|\\.)*)"/, captures) > 0) {
-        sequence = captures[1];
-        command = captures[3];
-
-        if (command ~ /\\/)
-          command = unescape(command);
-
-        line = sequence command;
-      }
-#%else
       if (match(line, /^("([^"\\]|\\.)*":) "(([^"\\]|\\.)*)"/) > 0) {
         rlen = RLENGTH;
         match(line, /^"([^"\\]|\\.)*":/);
@@ -2191,7 +2178,6 @@ function ble-decode-bind/.generate-source-to-unbind-default/.process {
 
         line = sequence command;
       }
-#%end
 
       print "builtin bind -x " quote(line) > "/dev/stderr";
     }
diff --git a/test/benchmark/benchmark.sh b/test/benchmark/benchmark.sh
index 23aa34d7..1e72d055 100755
--- a/test/benchmark/benchmark.sh
+++ b/test/benchmark/benchmark.sh
@@ -122,9 +122,11 @@ function ble-measure {
         
     local nsec0=$_ble_measure_base
     local reso=$_ble_measure_resolution
-    awk -v utot=$utot -v nsec0=$nsec0 -v n=$n -v reso=$reso -v title="$* (x$n)" \
-        ' function genround(x, mod) { return int(x / mod + 0.5) * mod; }
-            BEGIN { printf("%12.2f usec/eval: %s\n", genround(utot / n - nsec0 / 1000, reso / 10.0 / n), title); exit }'
+    local awk=ble/bin/awk
+    type "$awk" &>/dev/null || awk=awk
+    "$awk" -v utot=$utot -v nsec0=$nsec0 -v n=$n -v reso=$reso -v title="$* (x$n)" \
+      ' function genround(x, mod) { return int(x / mod + 0.5) * mod; }
+          BEGIN { printf("%12.2f usec/eval: %s\n", genround(utot / n - nsec0 / 1000, reso / 10.0 / n), title); exit }'
     ((ret=utot/n))
     if ((n>=1000)); then
       ((nsec=utot/(n/1000)))