diff --git a/qse/Makefile.in b/qse/Makefile.in
index 9f7f3ccd..fcc923ad 100644
--- a/qse/Makefile.in
+++ b/qse/Makefile.in
@@ -217,6 +217,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/cmd/Makefile.in b/qse/cmd/Makefile.in
index 65dcd734..0915aa9b 100644
--- a/qse/cmd/Makefile.in
+++ b/qse/cmd/Makefile.in
@@ -198,6 +198,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/cmd/awk/Makefile.in b/qse/cmd/awk/Makefile.in
index 23768d99..42c74210 100644
--- a/qse/cmd/awk/Makefile.in
+++ b/qse/cmd/awk/Makefile.in
@@ -203,6 +203,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/cmd/http/Makefile.in b/qse/cmd/http/Makefile.in
index 5d6a7d06..a0467e95 100644
--- a/qse/cmd/http/Makefile.in
+++ b/qse/cmd/http/Makefile.in
@@ -226,6 +226,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/cmd/sed/Makefile.in b/qse/cmd/sed/Makefile.in
index b8c4d6ec..d81aea3f 100644
--- a/qse/cmd/sed/Makefile.in
+++ b/qse/cmd/sed/Makefile.in
@@ -197,6 +197,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/cmd/xli/Makefile.in b/qse/cmd/xli/Makefile.in
index 2ac57cab..a016ba62 100644
--- a/qse/cmd/xli/Makefile.in
+++ b/qse/cmd/xli/Makefile.in
@@ -197,6 +197,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/configure b/qse/configure
index f4e8e009..8e1970a5 100755
--- a/qse/configure
+++ b/qse/configure
@@ -667,6 +667,7 @@ SSL_LIBS
 UNICOWS_LIBS
 SENDFILE_LIBS
 SOCKET_LIBS
+QUADMATH_LIBS
 LIBM
 WIN32_FALSE
 WIN32_TRUE
@@ -17091,6 +17092,10 @@ case "$host" in
 *-*-mingw*|*-*-cygwin*)
 	#CFLAGS="$CFLAGS -D_WIN32_WINNT=0x0400"
 	platform_win32=yes
+	;;
+*)
+	platform_win32=no
+	;;
 esac
  if test "${platform_win32}" = "yes" ; then
   WIN32_TRUE=
@@ -17442,7 +17447,7 @@ fi
 
 done
 
-for ac_header in crt_externs.h sys/prctl.h uci.h
+for ac_header in quadmath.h crt_externs.h sys/prctl.h uci.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -17661,6 +17666,117 @@ done
 
 LIBS="$OLDLIBS"
 
+if test "${platform_win32}" = "no"
+then
+	for ac_func in quadmath_snprintf
+do :
+  ac_fn_c_check_func "$LINENO" "quadmath_snprintf" "ac_cv_func_quadmath_snprintf"
+if test "x$ac_cv_func_quadmath_snprintf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_QUADMATH_SNPRINTF 1
+_ACEOF
+
+fi
+done
+
+	if test "$ac_cv_func_quadmath_snprintf" = "no"
+	then
+		OLDLIBS="$LIBS"
+		LIBS="$LIBM $LIBS"
+		for ac_func in quadmath_snprintf
+do :
+  ac_fn_c_check_func "$LINENO" "quadmath_snprintf" "ac_cv_func_quadmath_snprintf"
+if test "x$ac_cv_func_quadmath_snprintf" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_QUADMATH_SNPRINTF 1
+_ACEOF
+
+fi
+done
+
+		LIBS="$OLDLIBS"
+
+		if test "$ac_cv_func_quadmath_snprintf" = "no"
+		then
+			{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for quadmath_snprintf in -lquadmath" >&5
+$as_echo_n "checking for quadmath_snprintf in -lquadmath... " >&6; }
+if ${ac_cv_lib_quadmath_quadmath_snprintf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lquadmath  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char quadmath_snprintf ();
+int
+main ()
+{
+return quadmath_snprintf ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_quadmath_quadmath_snprintf=yes
+else
+  ac_cv_lib_quadmath_quadmath_snprintf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_quadmath_quadmath_snprintf" >&5
+$as_echo "$ac_cv_lib_quadmath_quadmath_snprintf" >&6; }
+if test "x$ac_cv_lib_quadmath_quadmath_snprintf" = xyes; then :
+
+				QUADMATH_LIBS="-lquadmath"
+				LIBM="$LIBM -lquadmath"
+				$as_echo "#define HAVE_QUADMATH_SNPRINTF 1" >>confdefs.h
+
+
+fi
+
+		else
+			QUADMATH_LIBS="$LIBM"
+		fi
+	fi
+
+	OLDLIBS="$LIBS"
+	LIBS="$LIBM $LIBS"
+	for ac_func in powq fmodq sinq cosq tanq atanq atan2q logq log10q expq sqrtq ceilq floorq roundq
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+	for ac_func in strtoflt128
+do :
+  ac_fn_c_check_func "$LINENO" "strtoflt128" "ac_cv_func_strtoflt128"
+if test "x$ac_cv_func_strtoflt128" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRTOFLT128 1
+_ACEOF
+
+fi
+done
+
+	LIBS="$OLDLIBS"
+fi
+
+
 for ac_func in connect gethostbyname
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
diff --git a/qse/configure.ac b/qse/configure.ac
index cdf76196..89403511 100644
--- a/qse/configure.ac
+++ b/qse/configure.ac
@@ -103,6 +103,10 @@ case "$host" in
 *-*-mingw*|*-*-cygwin*)
 	#CFLAGS="$CFLAGS -D_WIN32_WINNT=0x0400"
 	platform_win32=yes
+	;;
+*)
+	platform_win32=no
+	;;
 esac
 AM_CONDITIONAL(WIN32, test "${platform_win32}" = "yes" )
 
@@ -121,7 +125,7 @@ AC_CHECK_HEADERS([net/if.h net/if_dl.h], [], [], [
 	#include <sys/types.h>
 	#include <sys/socket.h>])
 AC_CHECK_HEADERS([sys/stropts.h sys/macstat.h linux/ethtool.h linux/sockios.h])
-AC_CHECK_HEADERS([crt_externs.h sys/prctl.h uci.h])
+AC_CHECK_HEADERS([quadmath.h crt_externs.h sys/prctl.h uci.h])
 
 dnl check data types
 AC_CHECK_TYPE([wchar_t], 
@@ -152,6 +156,36 @@ AC_CHECK_FUNCS([pow fmod sin cos tan atan atan2 log log10 exp sqrt ceil floor ro
 AC_CHECK_FUNCS([powf fmodf sinf cosf tanf atanf atan2f logf log10f expf sqrtf ceilf floorf roundf])
 LIBS="$OLDLIBS"
 
+if test "${platform_win32}" = "no" 
+then
+	AC_CHECK_FUNCS([quadmath_snprintf])
+	if test "$ac_cv_func_quadmath_snprintf" = "no"
+	then
+		OLDLIBS="$LIBS"
+		LIBS="$LIBM $LIBS"
+		AC_CHECK_FUNCS([quadmath_snprintf])
+		LIBS="$OLDLIBS"
+	
+		if test "$ac_cv_func_quadmath_snprintf" = "no"
+		then
+			AC_CHECK_LIB([quadmath], [quadmath_snprintf], [
+				QUADMATH_LIBS="-lquadmath"
+				LIBM="$LIBM -lquadmath"
+				AC_DEFINE(HAVE_QUADMATH_SNPRINTF, 1)
+			])
+		else
+			QUADMATH_LIBS="$LIBM"
+		fi
+	fi
+
+	OLDLIBS="$LIBS"
+	LIBS="$LIBM $LIBS"
+	AC_CHECK_FUNCS([powq fmodq sinq cosq tanq atanq atan2q logq log10q expq sqrtq ceilq floorq roundq])
+	AC_CHECK_FUNCS([strtoflt128])
+	LIBS="$OLDLIBS"
+fi
+AC_SUBST(QUADMATH_LIBS)
+
 dnl OLDLIBS="$LIBS"
 dnl AC_SEARCH_LIBS([connect], [socket])
 dnl LIBS="$OLDLIBS"
diff --git a/qse/doc/Makefile.in b/qse/doc/Makefile.in
index 12334bb1..5a8c262b 100644
--- a/qse/doc/Makefile.in
+++ b/qse/doc/Makefile.in
@@ -162,6 +162,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/Makefile.in b/qse/include/Makefile.in
index 3b53820f..532e11e9 100644
--- a/qse/include/Makefile.in
+++ b/qse/include/Makefile.in
@@ -199,6 +199,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/Makefile.in b/qse/include/qse/Makefile.in
index 8354dca0..be714bbd 100644
--- a/qse/include/qse/Makefile.in
+++ b/qse/include/qse/Makefile.in
@@ -234,6 +234,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/awk/Awk.hpp b/qse/include/qse/awk/Awk.hpp
index 5b2bb3cf..26127dca 100644
--- a/qse/include/qse/awk/Awk.hpp
+++ b/qse/include/qse/awk/Awk.hpp
@@ -1280,9 +1280,6 @@ protected:
 	/// @}
 
 	// primitive handlers 
-	virtual int    vsprintf (char_t* buf, size_t size,
-	                         const char_t* fmt, va_list arg) = 0;
-
 	virtual flt_t pow (flt_t x, flt_t y) = 0;
 	virtual flt_t mod (flt_t x, flt_t y) = 0;
 	virtual flt_t sin (flt_t x) = 0;
@@ -1320,8 +1317,6 @@ protected:
 	static int functionHandler (rtx_t* rtx, const fnc_info_t* fi);
 
 
-	static int   sprintf (awk_t* awk, char_t* buf, size_t size,
-	                      const char_t* fmt, ...);
 	static flt_t pow     (awk_t* awk, flt_t x, flt_t y);
 	static flt_t mod     (awk_t* awk, flt_t x, flt_t y);
 	static flt_t sin     (awk_t* awk, flt_t x);
diff --git a/qse/include/qse/awk/Makefile.in b/qse/include/qse/awk/Makefile.in
index 217408bd..8fb2f1f1 100644
--- a/qse/include/qse/awk/Makefile.in
+++ b/qse/include/qse/awk/Makefile.in
@@ -194,6 +194,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/awk/StdAwk.hpp b/qse/include/qse/awk/StdAwk.hpp
index eb4625dd..bf30eee5 100644
--- a/qse/include/qse/awk/StdAwk.hpp
+++ b/qse/include/qse/awk/StdAwk.hpp
@@ -156,9 +156,6 @@ protected:
 	void* reallocMem (void* ptr, size_t n);
 	void  freeMem    (void* ptr);
 
-	int vsprintf (char_t* buf, size_t size,
-	              const char_t* fmt, va_list arg);
-
 	flt_t pow (flt_t x, flt_t y);
 	flt_t mod (flt_t x, flt_t y);
 	flt_t sin (flt_t x);
diff --git a/qse/include/qse/awk/awk.h b/qse/include/qse/awk/awk.h
index b83b584c..ac7d4a19 100644
--- a/qse/include/qse/awk/awk.h
+++ b/qse/include/qse/awk/awk.h
@@ -396,14 +396,6 @@ typedef struct qse_awk_fun_t qse_awk_fun_t;
 
 /* ------------------------------------------------------------------------ */
 
-typedef int (*qse_awk_sprintf_t) (
-	qse_awk_t*        awk,
-	qse_char_t*       buf,
-	qse_size_t        size, 
-	const qse_char_t* fmt,
-	...
-);
-
 typedef qse_flt_t (*qse_awk_math1_t) (
 	qse_awk_t* awk,
 	qse_flt_t x
@@ -651,8 +643,6 @@ typedef qse_ssize_t (*qse_awk_rio_impl_t) (
  */
 struct qse_awk_prm_t
 {
-	qse_awk_sprintf_t sprintf;
-
 	struct
 	{
 		qse_awk_math2_t pow; /**< floating-point power function */
diff --git a/qse/include/qse/cmn/Makefile.in b/qse/include/qse/cmn/Makefile.in
index 035ee842..0a44c49c 100644
--- a/qse/include/qse/cmn/Makefile.in
+++ b/qse/include/qse/cmn/Makefile.in
@@ -199,6 +199,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/cmn/str.h b/qse/include/qse/cmn/str.h
index e81b6520..b327887a 100644
--- a/qse/include/qse/cmn/str.h
+++ b/qse/include/qse/cmn/str.h
@@ -23,6 +23,7 @@
 
 #include <qse/types.h>
 #include <qse/macros.h>
+#include <stdarg.h>
 
 /** \file
  * This file provides various functions, types, macros for string manipulation.
@@ -692,6 +693,12 @@ QSE_EXPORT qse_size_t qse_mbsfmt (
 	...
 );
 
+QSE_EXPORT qse_size_t qse_mbsvfmt (
+	qse_mchar_t*       buf,
+	const qse_mchar_t* fmt,
+	va_list            ap
+);
+
 /**
  * The qse_mbsxfmt() function writes a formatted string into the buffer \a buf
  * of the size \a bsz using the format \a fmt and the variable arguments. It
@@ -714,12 +721,25 @@ QSE_EXPORT qse_size_t qse_mbsxfmt (
 	...
 );
 
+QSE_EXPORT qse_size_t qse_mbsxvfmt (
+	qse_mchar_t*       buf,
+	qse_size_t         bsz,
+	const qse_mchar_t* fmt,
+	va_list            ap
+);
+
 QSE_EXPORT qse_size_t qse_wcsfmt (
 	qse_wchar_t*       buf,
 	const qse_wchar_t* fmt,
 	...
 );
 
+QSE_EXPORT qse_size_t qse_wcsvfmt (
+	qse_wchar_t*       buf,
+	const qse_wchar_t* fmt,
+	va_list            ap
+);
+
 /**
  * The qse_wcsxfmt() function writes a formatted string into the buffer \a buf
  * of the size \a bsz using the format \a fmt and the variable arguments. It
@@ -742,13 +762,24 @@ QSE_EXPORT qse_size_t qse_wcsxfmt (
 	...
 );
 
+QSE_EXPORT qse_size_t qse_wcsxvfmt (
+	qse_wchar_t*       buf,
+	qse_size_t         bsz,
+	const qse_wchar_t* fmt,
+	va_list            ap
+);
+
 
 #if defined(QSE_CHAR_IS_MCHAR)
 #	define qse_strfmt qse_mbsfmt
+#	define qse_strvfmt qse_mbsvfmt
 #	define qse_strxfmt qse_mbsxfmt
+#	define qse_strxvfmt qse_mbsxvfmt
 #else
 #	define qse_strfmt qse_wcsfmt
+#	define qse_strvfmt qse_wcsvfmt
 #	define qse_strxfmt qse_wcsxfmt
+#	define qse_strxvfmt qse_wcsxvfmt
 #endif
 
 /**
diff --git a/qse/include/qse/config.h.in b/qse/include/qse/config.h.in
index ca3109b0..3e5f39c8 100644
--- a/qse/include/qse/config.h.in
+++ b/qse/include/qse/config.h.in
@@ -39,12 +39,18 @@
 /* Define to 1 if you have the `atan2l' function. */
 #undef HAVE_ATAN2L
 
+/* Define to 1 if you have the `atan2q' function. */
+#undef HAVE_ATAN2Q
+
 /* Define to 1 if you have the `atanf' function. */
 #undef HAVE_ATANF
 
 /* Define to 1 if you have the `atanl' function. */
 #undef HAVE_ATANL
 
+/* Define to 1 if you have the `atanq' function. */
+#undef HAVE_ATANQ
+
 /* Define to 1 if you have the `backtrace' function. */
 #undef HAVE_BACKTRACE
 
@@ -60,6 +66,9 @@
 /* Define to 1 if you have the `ceill' function. */
 #undef HAVE_CEILL
 
+/* Define to 1 if you have the `ceilq' function. */
+#undef HAVE_CEILQ
+
 /* Define to 1 if you have the `closedir' function. */
 #undef HAVE_CLOSEDIR
 
@@ -75,6 +84,9 @@
 /* Define to 1 if you have the `cosl' function. */
 #undef HAVE_COSL
 
+/* Define to 1 if you have the `cosq' function. */
+#undef HAVE_COSQ
+
 /* Define to 1 if you have the <crt_externs.h> header file. */
 #undef HAVE_CRT_EXTERNS_H
 
@@ -131,6 +143,9 @@
 /* Define to 1 if you have the `expl' function. */
 #undef HAVE_EXPL
 
+/* Define to 1 if you have the `expq' function. */
+#undef HAVE_EXPQ
+
 /* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H
 
@@ -146,6 +161,9 @@
 /* Define to 1 if you have the `floorl' function. */
 #undef HAVE_FLOORL
 
+/* Define to 1 if you have the `floorq' function. */
+#undef HAVE_FLOORQ
+
 /* Define to 1 if you have the `fmod' function. */
 #undef HAVE_FMOD
 
@@ -155,6 +173,9 @@
 /* Define to 1 if you have the `fmodl' function. */
 #undef HAVE_FMODL
 
+/* Define to 1 if you have the `fmodq' function. */
+#undef HAVE_FMODQ
+
 /* Define to 1 if you have the `fork' function. */
 #undef HAVE_FORK
 
@@ -239,12 +260,18 @@
 /* Define to 1 if you have the `log10l' function. */
 #undef HAVE_LOG10L
 
+/* Define to 1 if you have the `log10q' function. */
+#undef HAVE_LOG10Q
+
 /* Define to 1 if you have the `logf' function. */
 #undef HAVE_LOGF
 
 /* Define to 1 if you have the `logl' function. */
 #undef HAVE_LOGL
 
+/* Define to 1 if you have the `logq' function. */
+#undef HAVE_LOGQ
+
 /* Define to 1 if you have the `lseek64' function. */
 #undef HAVE_LSEEK64
 
@@ -305,6 +332,9 @@
 /* Define to 1 if you have the `powl' function. */
 #undef HAVE_POWL
 
+/* Define to 1 if you have the `powq' function. */
+#undef HAVE_POWQ
+
 /* Define to 1 if you have the `prctl' function. */
 #undef HAVE_PRCTL
 
@@ -317,6 +347,12 @@
 /* Have PTHREAD_PRIO_INHERIT. */
 #undef HAVE_PTHREAD_PRIO_INHERIT
 
+/* Define to 1 if you have the <quadmath.h> header file. */
+#undef HAVE_QUADMATH_H
+
+/* Define to 1 if you have the `quadmath_snprintf' function. */
+#undef HAVE_QUADMATH_SNPRINTF
+
 /* Define to 1 if you have the `readdir' function. */
 #undef HAVE_READDIR
 
@@ -332,6 +368,9 @@
 /* Define to 1 if you have the `roundl' function. */
 #undef HAVE_ROUNDL
 
+/* Define to 1 if you have the `roundq' function. */
+#undef HAVE_ROUNDQ
+
 /* Define to 1 if you have the `select' function. */
 #undef HAVE_SELECT
 
@@ -368,6 +407,9 @@
 /* Define to 1 if you have the `sinl' function. */
 #undef HAVE_SINL
 
+/* Define to 1 if you have the `sinq' function. */
+#undef HAVE_SINQ
+
 /* Define it socklen_t typedef is in sys/socket.h. */
 #undef HAVE_SOCKLEN_T
 
@@ -383,6 +425,9 @@
 /* Define to 1 if you have the `sqrtl' function. */
 #undef HAVE_SQRTL
 
+/* Define to 1 if you have the `sqrtq' function. */
+#undef HAVE_SQRTQ
+
 /* ssl support */
 #undef HAVE_SSL
 
@@ -413,6 +458,9 @@
 /* Define to 1 if you have the `strlcpy' function. */
 #undef HAVE_STRLCPY
 
+/* Define to 1 if you have the `strtoflt128' function. */
+#undef HAVE_STRTOFLT128
+
 /* Define to 1 if `d_type' is a member of `struct dirent'. */
 #undef HAVE_STRUCT_DIRENT_D_TYPE
 
@@ -523,6 +571,9 @@
 /* Define to 1 if you have the `tanl' function. */
 #undef HAVE_TANL
 
+/* Define to 1 if you have the `tanq' function. */
+#undef HAVE_TANQ
+
 /* Define to 1 if you have the `timegm' function. */
 #undef HAVE_TIMEGM
 
diff --git a/qse/include/qse/http/Makefile.in b/qse/include/qse/http/Makefile.in
index 5f9073fd..0c1447a0 100644
--- a/qse/include/qse/http/Makefile.in
+++ b/qse/include/qse/http/Makefile.in
@@ -192,6 +192,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/sed/Makefile.in b/qse/include/qse/sed/Makefile.in
index f4c143c1..90953999 100644
--- a/qse/include/qse/sed/Makefile.in
+++ b/qse/include/qse/sed/Makefile.in
@@ -194,6 +194,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/include/qse/types.h b/qse/include/qse/types.h
index 210d3993..5b630161 100644
--- a/qse/include/qse/types.h
+++ b/qse/include/qse/types.h
@@ -456,7 +456,7 @@ typedef qse_int_t qse_intptr_t;
  * The qse_flt_t type defines the largest floating-pointer number type
  * naturally supported.
  */
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__MINGW32__)
 	/* TODO: check if the support for long double is complete.
 	 *       if so, use long double for qse_flt_t */
 	typedef double qse_flt_t;
@@ -473,7 +473,9 @@ typedef qse_int_t qse_intptr_t;
  * The qse_fltmax_t type defines the largest floating-pointer number type
  * ever supported.
  */
-#if QSE_SIZEOF__FLOAT128 > QSE_SIZEOF_FLT_T
+#if QSE_SIZEOF___FLOAT128 >= QSE_SIZEOF_FLT_T
+	/* the size of long double may be equal to the size of __float128
+	 * for alignment on some platforms */
 	typedef __float128 qse_fltmax_t;
 #	define QSE_SIZEOF_FLTMAX_T QSE_SIZEOF___FLOAT128
 #else
@@ -481,7 +483,6 @@ typedef qse_int_t qse_intptr_t;
 #	define QSE_SIZEOF_FLTMAX_T QSE_SIZEOF_FLT_T
 #endif
 
-
 /** @typedef qse_ptrdiff_t
  */
 typedef qse_ssize_t qse_ptrdiff_t;
diff --git a/qse/include/qse/xli/Makefile.in b/qse/include/qse/xli/Makefile.in
index f07919b9..953e9d19 100644
--- a/qse/include/qse/xli/Makefile.in
+++ b/qse/include/qse/xli/Makefile.in
@@ -192,6 +192,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/lib/Makefile.in b/qse/lib/Makefile.in
index 06a1a07f..a10611d4 100644
--- a/qse/lib/Makefile.in
+++ b/qse/lib/Makefile.in
@@ -198,6 +198,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/lib/awk/Awk.cpp b/qse/lib/awk/Awk.cpp
index 6832a010..a8d45634 100644
--- a/qse/lib/awk/Awk.cpp
+++ b/qse/lib/awk/Awk.cpp
@@ -1110,7 +1110,6 @@ int Awk::open ()
 	qse_awk_prm_t prm;
 
 	QSE_MEMSET (&prm, 0, QSE_SIZEOF(prm));
-	prm.sprintf  = sprintf;
 	prm.math.pow = pow;
 	prm.math.mod = mod;
 	prm.math.sin = sin;
@@ -1994,18 +1993,6 @@ int Awk::functionHandler (rtx_t* rtx, const fnc_info_t* fi)
 	return rxtn->run->awk->dispatch_function (rxtn->run, fi);
 }	
 	
-int Awk::sprintf (awk_t* awk, char_t* buf, size_t size,
-                  const char_t* fmt, ...)
-{
-	xtn_t* xtn = (xtn_t*) QSE_XTN (awk);
-
-	va_list ap;
-	va_start (ap, fmt);
-	int n = xtn->awk->vsprintf (buf, size, fmt, ap);
-	va_end (ap);
-	return n;
-}
-
 Awk::flt_t Awk::pow (awk_t* awk, flt_t x, flt_t y)
 {
 	xtn_t* xtn = (xtn_t*) QSE_XTN (awk);
diff --git a/qse/lib/awk/Makefile.in b/qse/lib/awk/Makefile.in
index 7b765d96..8dd84063 100644
--- a/qse/lib/awk/Makefile.in
+++ b/qse/lib/awk/Makefile.in
@@ -354,6 +354,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/lib/awk/StdAwk.cpp b/qse/lib/awk/StdAwk.cpp
index 4207f4a8..c901d8f1 100644
--- a/qse/lib/awk/StdAwk.cpp
+++ b/qse/lib/awk/StdAwk.cpp
@@ -1163,11 +1163,6 @@ void  StdAwk::freeMem (void* ptr)
 }
 
 // miscellaneous primitive
-int StdAwk::vsprintf (
-	char_t* buf, size_t size, const char_t* fmt, va_list arg) 
-{
-	return qse_vsprintf (buf, size, fmt, arg);
-}
 
 StdAwk::flt_t StdAwk::pow (flt_t x, flt_t y) 
 { 
diff --git a/qse/lib/awk/awk.c b/qse/lib/awk/awk.c
index 5f01a9fa..280183de 100644
--- a/qse/lib/awk/awk.c
+++ b/qse/lib/awk/awk.c
@@ -118,7 +118,6 @@ qse_awk_t* qse_awk_open (qse_mmgr_t* mmgr, qse_size_t xtnsize, qse_awk_prm_t* pr
 
 	/* progagate the primitive functions */
 	QSE_ASSERT (prm             != QSE_NULL);
-	QSE_ASSERT (prm->sprintf    != QSE_NULL);
 	QSE_ASSERT (prm->math.pow   != QSE_NULL);
 	QSE_ASSERT (prm->math.sin   != QSE_NULL);
 	QSE_ASSERT (prm->math.cos   != QSE_NULL);
@@ -130,7 +129,6 @@ qse_awk_t* qse_awk_open (qse_mmgr_t* mmgr, qse_size_t xtnsize, qse_awk_prm_t* pr
 	QSE_ASSERT (prm->math.exp   != QSE_NULL);
 	QSE_ASSERT (prm->math.sqrt  != QSE_NULL);
 	if (prm             == QSE_NULL || 
-	    prm->sprintf    == QSE_NULL ||
 	    prm->math.pow   == QSE_NULL ||
 	    prm->math.sin   == QSE_NULL ||
 	    prm->math.cos   == QSE_NULL ||
diff --git a/qse/lib/awk/misc.c b/qse/lib/awk/misc.c
index e1b5f15a..8e040aa9 100644
--- a/qse/lib/awk/misc.c
+++ b/qse/lib/awk/misc.c
@@ -164,7 +164,7 @@ qse_long_t qse_awk_strxtolong (
 
 
 /*
- * qse_awk_strtoreal is almost a replica of strtod.
+ * qse_awk_strtoflt is almost a replica of strtod.
  *
  * strtod.c --
  *
@@ -184,7 +184,7 @@ qse_long_t qse_awk_strxtolong (
 
 #define MAX_EXPONENT 511
 
-qse_flt_t qse_awk_strtoreal (qse_awk_t* awk, const qse_char_t* str)
+qse_flt_t qse_awk_strtoflt (qse_awk_t* awk, const qse_char_t* str)
 {
 	/* 
 	 * Table giving binary powers of 10. Entry is 10^2^i.  
@@ -1383,17 +1383,3 @@ void qse_awk_rtx_freemem (qse_awk_rtx_t* rtx, void* ptr)
 	QSE_AWK_FREE (rtx->awk, ptr);
 }
 
-int qse_awk_sprintflt (
-	qse_awk_t* awk, qse_char_t* buf, qse_size_t len, qse_flt_t num)
-{
-	return awk->prm.sprintf (
-		awk, buf, len,
-	#if QSE_SIZEOF_LONG_DOUBLE > 0
-		QSE_T("%Lf"), (long double)num
-	#elif QSE_SIZEOF_DOUBLE > 0
-		QSE_T("%f"), (double)num
-	#else
-		#error unsupported size	
-	#endif
-	);
-}
diff --git a/qse/lib/awk/misc.h b/qse/lib/awk/misc.h
index 15ea3fcd..e087e961 100644
--- a/qse/lib/awk/misc.h
+++ b/qse/lib/awk/misc.h
@@ -86,14 +86,6 @@ int qse_awk_rtx_matchrex (
 	qse_cstr_t* match
 );
 
-int qse_awk_sprintflt (
-	qse_awk_t*  awk,
-	qse_char_t* buf,
-	qse_size_t  len,
-	qse_flt_t   num
-);
-
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/qse/lib/awk/run.c b/qse/lib/awk/run.c
index a331a71e..cec83a25 100644
--- a/qse/lib/awk/run.c
+++ b/qse/lib/awk/run.c
@@ -7290,7 +7290,7 @@ wp_mod_main:
 			qse_flt_t r;
 			int n;
 	
-			FMT_CHAR (QSE_T('L'));
+			FMT_CHAR (QSE_T('z'));
 			FMT_CHAR (fmt[i]);
 
 			if (args == QSE_NULL)
@@ -7325,31 +7325,11 @@ wp_mod_main:
 			qse_awk_rtx_refdownval (rtx, v);
 			if (n <= -1) return QSE_NULL;
 
-			do
+			if (qse_str_fcat (out, QSE_STR_PTR(fbu), r) == (qse_size_t)-1)
 			{
-				n = rtx->awk->prm.sprintf (
-					rtx->awk,
-					rtx->format.tmp.ptr,
-					rtx->format.tmp.len,
-					QSE_STR_PTR(fbu),
-				#if defined(__MINGW32__)
-					(double)r
-				#else
-					(long double)r
-				#endif
-				);
-					
-				if (n == -1)
-				{
-					GROW (&rtx->format.tmp);
-					continue;
-				}
-
-				break;
+				SETERR_COD (rtx, QSE_AWK_ENOMEM);
+				return QSE_NULL;
 			}
-			while (1);
-
-			OUT_STR (rtx->format.tmp.ptr, n);
 		}
 		else if (fmt[i] == QSE_T('c')) 
 		{
diff --git a/qse/lib/awk/std.c b/qse/lib/awk/std.c
index bd7243fe..bcb883bd 100644
--- a/qse/lib/awk/std.c
+++ b/qse/lib/awk/std.c
@@ -30,12 +30,14 @@
 #include <qse/cmn/htb.h>
 #include <qse/cmn/env.h>
 #include <qse/cmn/alg.h>
-#include <qse/cmn/stdio.h> /* TODO: remove dependency on qse_vsprintf */
 #include "../cmn/mem.h"
 
 #include <stdarg.h>
 #include <stdlib.h>
 #include <math.h>
+#if defined(HAVE_QUADMATH_H)
+#	include <quadmath.h>
+#endif
 
 #if defined(_WIN32)
 #	include <windows.h>
@@ -299,20 +301,6 @@ static qse_flt_t custom_awk_sqrt (qse_awk_t* awk, qse_flt_t x)
 #endif
 }
 
-static int custom_awk_sprintf (
-	qse_awk_t* awk, qse_char_t* buf, qse_size_t size, 
-	const qse_char_t* fmt, ...)
-{
-	int n;
-
-	va_list ap;
-	va_start (ap, fmt);
-	n = qse_vsprintf (buf, size, fmt, ap);
-	va_end (ap);
-
-	return n;
-}
-
 static void* custom_awk_modopen (qse_awk_t* awk, const qse_awk_mod_spec_t* spec)
 {
 #if defined(QSE_ENABLE_STATIC_MODULE)
@@ -541,8 +529,6 @@ qse_awk_t* qse_awk_openstdwithmmgr (qse_mmgr_t* mmgr, qse_size_t xtnsize)
 	qse_awk_prm_t prm;
 	xtn_t* xtn;
 
-	prm.sprintf  = custom_awk_sprintf;
-
 	prm.math.pow = custom_awk_pow;
 	prm.math.mod = custom_awk_mod;
 	prm.math.sin = custom_awk_sin;
diff --git a/qse/lib/awk/tree.c b/qse/lib/awk/tree.c
index 8b74ecec..74e2b863 100644
--- a/qse/lib/awk/tree.c
+++ b/qse/lib/awk/tree.c
@@ -341,10 +341,14 @@ static int print_expr (qse_awk_t* awk, qse_awk_nde_t* nde)
 			}
 			else
 			{
-				qse_char_t buf[64];
-				qse_awk_sprintflt (
-					awk, buf, QSE_COUNTOF(buf), 
-					((qse_awk_nde_flt_t*)nde)->val);
+				qse_char_t buf[96];
+
+				qse_strxfmt (
+					buf, QSE_COUNTOF(buf), 
+					QSE_T("%zf"), 
+					((qse_awk_nde_flt_t*)nde)->val
+				);
+
 				PUT_SRCSTR (awk, buf);
 			}
 			break;
diff --git a/qse/lib/cmn/Makefile.am b/qse/lib/cmn/Makefile.am
index 2feef4fe..42ce5b9c 100644
--- a/qse/lib/cmn/Makefile.am
+++ b/qse/lib/cmn/Makefile.am
@@ -126,9 +126,8 @@ if ENABLE_XCMGRS
 libqsecmn_la_SOURCES += cp949.c cp950.c
 endif
 
-
 libqsecmn_la_LDFLAGS = -version-info 1:0:0 -no-undefined
-libqsecmn_la_LIBADD = $(SOCKET_LIBS)
+libqsecmn_la_LIBADD = $(SOCKET_LIBS) $(QUADMATH_LIBS)
 
 if ENABLE_CXX
 
diff --git a/qse/lib/cmn/Makefile.in b/qse/lib/cmn/Makefile.in
index 44fd6161..f959e104 100644
--- a/qse/lib/cmn/Makefile.in
+++ b/qse/lib/cmn/Makefile.in
@@ -84,7 +84,8 @@ am__uninstall_files_from_dir = { \
 am__installdirs = "$(DESTDIR)$(libdir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
 am__DEPENDENCIES_1 =
-libqsecmn_la_DEPENDENCIES = $(am__DEPENDENCIES_1)
+libqsecmn_la_DEPENDENCIES = $(am__DEPENDENCIES_1) \
+	$(am__DEPENDENCIES_1)
 am__libqsecmn_la_SOURCES_DIST = alg-base64.c alg-rand.c alg-search.c \
 	alg-sort.c assert.c chr.c dir.c dll.c env.c gdl.c htb.c fio.c \
 	fma.c fmt-intmax.c fmt-out.c fs.c fs-err.c fs-move.c glob.c \
@@ -286,6 +287,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
@@ -402,7 +404,7 @@ libqsecmn_la_SOURCES = alg-base64.c alg-rand.c alg-search.c alg-sort.c \
 	tre-match-parallel.c tre-parse.c tre-stack.c uri.c utf8.c \
 	xma.c $(am__append_1) $(am__append_2)
 libqsecmn_la_LDFLAGS = -version-info 1:0:0 -no-undefined
-libqsecmn_la_LIBADD = $(SOCKET_LIBS)
+libqsecmn_la_LIBADD = $(SOCKET_LIBS) $(QUADMATH_LIBS)
 @ENABLE_CXX_TRUE@libqsecmnxx_la_SOURCES = \
 @ENABLE_CXX_TRUE@	Mmgr.cpp StdMmgr.cpp
 
diff --git a/qse/lib/cmn/fmt-out.c b/qse/lib/cmn/fmt-out.c
index 2add3193..9c874bdf 100644
--- a/qse/lib/cmn/fmt-out.c
+++ b/qse/lib/cmn/fmt-out.c
@@ -30,7 +30,10 @@
 #if defined(_MSC_VER) || defined(__BORLANDC__) || (defined(__WATCOMC__) && (__WATCOMC__ < 1200))
 #	define snprintf _snprintf 
 #endif
-/* TODO: remove stdio.h once snprintf gets replaced by own 
+#if defined(HAVE_QUADMATH_H)
+#	include <quadmath.h> /* for quadmath_snprintf */
+#endif
+/* TODO: remove stdio.h and quadmath.h once snprintf gets replaced by own 
 floting-point conversion implementation*/
 
 /* number of bits in a byte */
@@ -52,7 +55,9 @@ enum
 	LF_Z = (1 << 6),
 
 	/* long double */
-	LF_LD = (1 << 7)
+	LF_LD = (1 << 7),
+	/* __float128 */
+	LF_QD = (1 << 8)
 };
 
 static struct
@@ -93,9 +98,9 @@ static struct
 enum 
 {
 	FLAGC_DOT       = (1 << 0),
-	FLAGC_SHARP     = (1 << 1),
-	FLAGC_SIGN      = (1 << 2),
-	FLAGC_SPACE     = (1 << 3),
+	FLAGC_SPACE     = (1 << 1),
+	FLAGC_SHARP     = (1 << 2),
+	FLAGC_SIGN      = (1 << 3),
 	FLAGC_LEFTADJ   = (1 << 4),
 	FLAGC_ZEROPAD   = (1 << 5),
 	FLAGC_WIDTH     = (1 << 6),
diff --git a/qse/lib/cmn/fmt-out.h b/qse/lib/cmn/fmt-out.h
index e00e8c4b..2ab11da2 100644
--- a/qse/lib/cmn/fmt-out.h
+++ b/qse/lib/cmn/fmt-out.h
@@ -264,7 +264,7 @@ reswitch:
 		case T('j'): /* uintmax_t */
 		case T('z'): /* size_t */
 		case T('t'): /* ptrdiff_t */
-			if (lm_flag & LF_LD) goto invalid_format;
+			if (lm_flag & (LF_LD | LF_QD)) goto invalid_format;
 
 			flagc |= FLAGC_LENMOD;
 			if (lm_dflag)
@@ -297,12 +297,23 @@ reswitch:
 		case T('L'): /* long double */
 			if (flagc & FLAGC_LENMOD) 
 			{
-				/* conflict integral length modifier */
+				/* conflict with other length modifier */
 				goto invalid_format; 
 			}
 			flagc |= FLAGC_LENMOD;
 			lm_flag |= LF_LD;
 			goto reswitch;
+
+		case T('Q'): /* __float128 */
+			if (flagc & FLAGC_LENMOD)
+			{
+				/* conflict with other length modifier */
+				goto invalid_format; 
+			}
+			flagc |= FLAGC_LENMOD;
+			lm_flag |= LF_QD;
+			goto reswitch;
+			
 		/* end of length modifiers */
 
 		case T('n'):
@@ -320,6 +331,8 @@ reswitch:
 				*(va_arg(ap, short int*)) = data->count;
 			else if (lm_flag & LF_C) /* hh */
 				*(va_arg(ap, char*)) = data->count;
+			else if (flagc & FLAGC_LENMOD)
+				goto oops;
 			else
 				*(va_arg(ap, int*)) = data->count;
 			break;
@@ -531,20 +544,62 @@ reswitch:
 		case T('A'):
 		*/
 		{
-			/* let me rely on snprintf until i implement 
-			 * float-point to string conversion */
+			/* let me rely on snprintf until i implement float-point to string conversion */
 			int q;
 			qse_size_t fmtlen;
-			qse_fltmax_t v_fltmax;
+		#if (QSE_SIZEOF___FLOAT128 > 0) && defined(HAVE_QUADMATH_SNPRINTF)
+			__float128 v_qd;
+		#endif
 			long double v_ld;
 			double v_d;
+			int dtype = 0;
 
 			if (lm_flag & LF_J)
-				v_fltmax = va_arg (ap, qse_fltmax_t);
-			else if (lm_flag & (LF_LD | LF_L | LF_Q | LF_Z))
+			{
+			#if (QSE_SIZEOF___FLOAT128 > 0) && defined(HAVE_QUADMATH_SNPRINTF) && (QSE_SIZEOF_FLTMAX_T == QSE_SIZEOF___FLOAT128)
+				v_qd = va_arg (ap, qse_fltmax_t);
+				dtype = LF_QD;
+			#elif QSE_SIZEOF_FLTMAX_T == QSE_SIZEOF_LONG_DOUBLE
+				v_ld = va_arg (ap, qse_fltmax_t);
+				dtype = LF_LD;
+			#elif QSE_SIZEOF_FLTMAX_T == QSE_SIZEOF_DOUBLE
+				v_d = va_arg (ap, qse_fltmax_t);
+			#else
+				#error Unsupported qse_flt_t
+			#endif
+			}
+			else if (lm_flag & LF_Z)
+			{
+				/* qse_flt_t is limited to double or long double */
+			#if QSE_SIZEOF_FLT_T == QSE_SIZEOF_LONG_DOUBLE
+				v_ld = va_arg (ap, qse_flt_t);
+				dtype = LF_LD;
+			#elif QSE_SIZEOF_FLT_T == QSE_SIZEOF_DOUBLE
+				v_d = va_arg (ap, qse_flt_t);
+			#else
+				#error Unsupported qse_flt_t
+			#endif
+			}
+			else if (lm_flag & (LF_LD | LF_L))
+			{
 				v_ld = va_arg (ap, long double);
+				dtype = LF_LD;
+			}
+		#if (QSE_SIZEOF___FLOAT128 > 0) && defined(HAVE_QUADMATH_SNPRINTF)
+			else if (lm_flag & (LF_QD | LF_Q))
+			{
+				v_qd = va_arg (ap, __float128);	
+				dtype = LF_QD;
+			}
+		#endif
+			else if (flagc & FLAGC_LENMOD)
+			{
+				goto oops;
+			}
 			else
+			{
 				v_d = va_arg (ap, double);
+			}
 
 			fmtlen = fmt - percent;
 			if (fmtlen > fltfmt.capa)
@@ -566,27 +621,59 @@ reswitch:
 				fltfmt.capa = fmtlen;
 			}
 
-			fltfmt.ptr[fmtlen] = QSE_MT('\0');
-			while (fmtlen > 0) 
+			/* compose back the format specifier */
+			fmtlen = 0;
+			fltfmt.ptr[fmtlen++] = QSE_MT('%');
+			if (flagc & FLAGC_SPACE) fltfmt.ptr[fmtlen++] = QSE_T(' ');
+			if (flagc & FLAGC_SHARP) fltfmt.ptr[fmtlen++] = QSE_T('#');
+			if (flagc & FLAGC_SIGN) fltfmt.ptr[fmtlen++] = QSE_T('+');
+			if (flagc & FLAGC_LEFTADJ) fltfmt.ptr[fmtlen++] = QSE_T('-');
+			if (flagc & FLAGC_ZEROPAD) fltfmt.ptr[fmtlen++] = QSE_T('0');
+
+			if (flagc & FLAGC_STAR1) fltfmt.ptr[fmtlen++] = QSE_T('*');
+			else if (flagc & FLAGC_WIDTH) 
 			{
-				fmtlen--;
-				fltfmt.ptr[fmtlen] = percent[fmtlen];
+				fmtlen += qse_fmtuintmaxtombs (	
+					&fltfmt.ptr[fmtlen], fltfmt.capa - fmtlen, 
+					width, 10, -1, QSE_MT('\0'), QSE_NULL);
 			}
+			if (flagc & FLAGC_DOT) fltfmt.ptr[fmtlen++] = QSE_T('.');
+			if (flagc & FLAGC_STAR2) fltfmt.ptr[fmtlen++] = QSE_T('*');
+			else if (flagc & FLAGC_PRECISION) 
+			{
+				fmtlen += qse_fmtuintmaxtombs (	
+					&fltfmt.ptr[fmtlen], fltfmt.capa - fmtlen, 
+					precision, 10, -1, QSE_MT('\0'), QSE_NULL);
+			}
+
+			if (dtype == LF_LD)
+				fltfmt.ptr[fmtlen++] = QSE_MT('L');
+			#if (QSE_SIZEOF___FLOAT128 > 0)
+			else if (dtype == LF_QD)
+				fltfmt.ptr[fmtlen++] = QSE_MT('Q');
+			#endif
+
+			fltfmt.ptr[fmtlen++] = ch;
+			fltfmt.ptr[fmtlen] = QSE_MT('\0');
 
 			while (1)
 			{
 				qse_size_t newcapa;
 
-				if (lm_flag & LF_J)
-					q = snprintf ((qse_mchar_t*)fltout.ptr, fltout.capa + 1, fltfmt.ptr, v_fltmax);
-				else if (lm_flag & (LF_LD | LF_L | LF_Q | LF_Z))
+				if (dtype == LF_LD)
 					q = snprintf ((qse_mchar_t*)fltout.ptr, fltout.capa + 1, fltfmt.ptr, v_ld);
+			#if (QSE_SIZEOF___FLOAT128 > 0) && defined(HAVE_QUADMATH_SNPRINTF)
+				else if (dtype == LF_QD)
+					q = quadmath_snprintf ((qse_mchar_t*)fltout.ptr, fltout.capa + 1, fltfmt.ptr, v_qd);
+			#endif
 				else
 					q = snprintf ((qse_mchar_t*)fltout.ptr, fltout.capa + 1, fltfmt.ptr, v_d);
 				if (q <= -1) goto oops;
 				if (q <= fltout.capa) break;
 
 				newcapa = fltout.capa * 2;
+				if (newcapa < q) newcapa = q;
+
 				if (fltout.ptr == fltout.sbuf)
 				{
 					fltout.ptr = QSE_MMGR_ALLOC (QSE_MMGR_GETDFL(), QSE_SIZEOF(char_t) * (newcapa + 1));
diff --git a/qse/lib/cmn/str-dyn.c b/qse/lib/cmn/str-dyn.c
index 09ffe6e7..2eb851f7 100644
--- a/qse/lib/cmn/str-dyn.c
+++ b/qse/lib/cmn/str-dyn.c
@@ -53,7 +53,7 @@ static int put_mchar_nocheck (qse_mchar_t c, void* ctx)
 	return 1;
 }
 
-static int put_wchar_nocheck (qse_wchar_t* c, void* ctx)
+static int put_wchar_nocheck (qse_wchar_t c, void* ctx)
 {
 	qse_wcs_t* str = (qse_wcs_t*)ctx;
 	str->val.ptr[str->val.len++] = c;
diff --git a/qse/lib/cmn/str-dyn.h b/qse/lib/cmn/str-dyn.h
index ec0f5249..1037bcae 100644
--- a/qse/lib/cmn/str-dyn.h
+++ b/qse/lib/cmn/str-dyn.h
@@ -425,8 +425,6 @@ qse_size_t str_pac (str_t* str)
 	return str->val.len;
 }
 
-
-
 qse_size_t str_vfcat (str_t* str, const char_t* fmt, va_list ap)
 {
 	va_list orgap;
@@ -471,50 +469,6 @@ qse_size_t str_vfcat (str_t* str, const char_t* fmt, va_list ap)
 
 qse_size_t str_fcat (str_t* str, const char_t* fmt, ...)
 {
-#if 0
-	va_list ap;
-	fmtout_t fo;
-	int x;
-	qse_size_t old_len, inc;
-
-	old_len = str->val.len;
-
-	fo.limit = QSE_TYPE_MAX(qse_size_t) - 1;
-	fo.ctx = str;
-	fo.put = str->val.ptr? put_char: put_char_null;
-	fo.conv = conv_char;
-
-	va_start (ap, fmt);
-	x = fmtout (fmt, &fo, ap);
-	va_end (ap);
-
-	if (x <= -1)
-	{
-		str->val.len = old_len;
-		return (qse_size_t)-1;
-	}
-	
-	if (str->val.ptr == QSE_NULL || str->val.len - old_len < fo.count)
-	{
-		str->val.len = old_len;
-
-		/* resizing is required */
-		x = resize_for_ncat (str, fo.count);
-
-		if (x <= -1) return (qse_size_t)-1;
-		if (x >= 1)
-		{
-			fo.put = put_char;
-
-			va_start (ap, fmt);
-			x = fmtout (fmt, &fo, ap);
-			va_end (ap);
-		}
-	}
-
-	str->val.ptr[str->val.len] = T('\0');
-	return str->val.len;
-#endif
 	qse_size_t x;
 	va_list ap;
 
diff --git a/qse/lib/cmn/str-fmt.c b/qse/lib/cmn/str-fmt.c
index 50eca019..ab62b93f 100644
--- a/qse/lib/cmn/str-fmt.c
+++ b/qse/lib/cmn/str-fmt.c
@@ -103,6 +103,8 @@ static int mbs_to_wcs (
 #undef conv_char
 #undef strfmt
 #undef strxfmt
+#undef strvfmt
+#undef strxvfmt
 
 #define T(x) QSE_MT(x)
 #define char_t qse_mchar_t
@@ -114,6 +116,8 @@ static int mbs_to_wcs (
 #define conv_char wcs_to_mbs
 #define strfmt qse_mbsfmt
 #define strxfmt qse_mbsxfmt
+#define strvfmt qse_mbsvfmt
+#define strxvfmt qse_mbsxvfmt
 #include "str-fmt.h"
 
 /* ----------------------------------- */
@@ -128,6 +132,8 @@ static int mbs_to_wcs (
 #undef conv_char
 #undef strfmt
 #undef strxfmt
+#undef strvfmt
+#undef strxvfmt
 
 #define T(x) QSE_WT(x)
 #define char_t qse_wchar_t
@@ -139,5 +145,7 @@ static int mbs_to_wcs (
 #define conv_char mbs_to_wcs
 #define strfmt qse_wcsfmt
 #define strxfmt qse_wcsxfmt
+#define strvfmt qse_wcsvfmt
+#define strxvfmt qse_wcsxvfmt
 #include "str-fmt.h"
 
diff --git a/qse/lib/cmn/str-fmt.h b/qse/lib/cmn/str-fmt.h
index 81836edb..a59bb4df 100644
--- a/qse/lib/cmn/str-fmt.h
+++ b/qse/lib/cmn/str-fmt.h
@@ -19,10 +19,9 @@
  */
 
 
-qse_size_t strfmt (char_t* buf, const char_t* fmt, ...)
+qse_size_t strvfmt (char_t* buf, const char_t* fmt, va_list ap)
 {
 	buf_t b;
-	va_list ap;
 	fmtout_t fo;
 	int x;
 
@@ -37,9 +36,7 @@ qse_size_t strfmt (char_t* buf, const char_t* fmt, ...)
 
 	/* no I/O error must occurred by fmtout but there can be
 	 * encoding conversion error by fmtout */
-	va_start (ap, fmt);
 	x = fmtout (fmt, &fo, ap);
-	va_end (ap);
 
 	/* fmtout must produce no I/O error but it can produce
 	 * an encoding conversion error. if you didn't use a conversion
@@ -57,10 +54,21 @@ qse_size_t strfmt (char_t* buf, const char_t* fmt, ...)
 	return fo.count;
 }
 
-qse_size_t strxfmt (char_t* buf, qse_size_t len, const char_t* fmt, ...)
+qse_size_t strfmt (char_t* buf, const char_t* fmt, ...)
+{
+	qse_size_t x;
+	va_list ap;
+
+	va_start (ap, fmt);
+	x = strvfmt (buf, fmt, ap);
+	va_end (ap);
+
+	return x;
+}
+
+qse_size_t strxvfmt (char_t* buf, qse_size_t len, const char_t* fmt, va_list ap)
 {
 	buf_t b;
-	va_list ap;
 	fmtout_t fo;
 	int x;
 
@@ -79,9 +87,7 @@ qse_size_t strxfmt (char_t* buf, qse_size_t len, const char_t* fmt, ...)
 	fo.put = b.ptr? put_char: put_char_null;
 	fo.conv = conv_char;
 
-	va_start (ap, fmt);
 	x = fmtout (fmt, &fo, ap);
-	va_end (ap);
 
 	/* fmtout must produce no I/O error but it can produce
 	 * an encoding conversion error. if you didn't use a conversion
@@ -99,3 +105,14 @@ qse_size_t strxfmt (char_t* buf, qse_size_t len, const char_t* fmt, ...)
 	return fo.count;
 }
 
+qse_size_t strxfmt (char_t* buf, qse_size_t len, const char_t* fmt, ...)
+{
+	qse_size_t x;
+	va_list ap;
+
+	va_start (ap, fmt);
+	x = strxvfmt (buf, len, fmt, ap);
+	va_end (ap);
+
+	return x;
+}
diff --git a/qse/lib/http/Makefile.in b/qse/lib/http/Makefile.in
index cd4723c0..57ef2d50 100644
--- a/qse/lib/http/Makefile.in
+++ b/qse/lib/http/Makefile.in
@@ -225,6 +225,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/lib/http/httpd-task.c b/qse/lib/http/httpd-task.c
index aab5f295..2cedb86e 100644
--- a/qse/lib/http/httpd-task.c
+++ b/qse/lib/http/httpd-task.c
@@ -20,13 +20,8 @@
 
 #include "httpd.h"
 #include <qse/cmn/str.h>
-#include <qse/cmn/fmt.h>
 #include "../cmn/mem.h"
 
-#include <stdarg.h>
-#include <stdio.h> /* TODO: remove this */
-
-
 /* TODO:
  * many functions in this file use qse_size_t.
  * so the size data transfers is limited by this type.
@@ -115,61 +110,27 @@ qse_httpd_task_t* qse_httpd_entaskformat (
 	task_format_t data;
 
 	va_list ap;
-	qse_mchar_t n[2];
 	qse_mchar_t* buf;
 	int bytes_req, l;
 
 	va_start (ap, fmt);
-	bytes_req = vsnprintf (n, 1, fmt, ap);
+	bytes_req = qse_mbsxvfmt (QSE_NULL, 0, fmt, ap);
 	va_end (ap);
 
-	if (bytes_req == -1) 
+	buf = (qse_mchar_t*) qse_httpd_allocmem (
+		httpd, (bytes_req + 1) * QSE_SIZEOF(*buf));
+	if (buf == QSE_NULL) return QSE_NULL;
+
+	va_start (ap, fmt);
+	l = qse_mbsxvfmt (buf, bytes_req + 1, fmt, ap);
+	va_end (ap);
+
+	if (l != bytes_req) 
 	{
-		qse_size_t capa = 256;
-
-		buf = (qse_mchar_t*) qse_httpd_allocmem (
-			httpd, (capa + 1) * QSE_SIZEOF(*buf));
-		if (buf == QSE_NULL) return QSE_NULL;
-
-		/* an old vsnprintf behaves differently from C99 standard.
-		 * thus, it returns -1 when it can't write all the input given. */
-		for (;;) 
-		{
-			va_start (ap, fmt);
-			l = vsnprintf (buf, capa + 1, fmt, ap);
-			va_end (ap);
-
-			if (l == -1)
-			{
-				qse_httpd_freemem (httpd, buf);
-
-				capa = capa * 2;
-				buf = (qse_mchar_t*) qse_httpd_allocmem (httpd, (capa + 1) * QSE_SIZEOF(*buf));
-				if (buf == QSE_NULL) return QSE_NULL;
-			}
-			else break;
-		}
-	}
-	else 
-	{
-		/* vsnprintf returns the number of characters that would 
-		 * have been written not including the terminating '\0' 
-		 * if the _data buffer were large enough */
-		buf = (qse_mchar_t*) qse_httpd_allocmem (
-			httpd, (bytes_req + 1) * QSE_SIZEOF(*buf));
-		if (buf == QSE_NULL) return QSE_NULL;
-
-		va_start (ap, fmt);
-		l = vsnprintf (buf, bytes_req + 1, fmt, ap);
-		va_end (ap);
-
-		if (l != bytes_req) 
-		{
-			/* something got wrong ... */
-			qse_httpd_freemem (httpd, buf);
-			httpd->errnum = QSE_HTTPD_EINTERN;
-			return QSE_NULL;
-		}
+		/* something got wrong ... */
+		qse_httpd_freemem (httpd, buf);
+		httpd->errnum = QSE_HTTPD_EINTERN;
+		return QSE_NULL;
 	}
 
 	QSE_MEMSET (&data, 0, QSE_SIZEOF(data));
diff --git a/qse/lib/http/httpd.h b/qse/lib/http/httpd.h
index 3ea4026e..e27fd492 100644
--- a/qse/lib/http/httpd.h
+++ b/qse/lib/http/httpd.h
@@ -107,11 +107,6 @@ struct qse_httpd_real_task_t
 #define CLIENT_HANDLE_IN_MUX          (CLIENT_HANDLE_READ_IN_MUX|CLIENT_HANDLE_WRITE_IN_MUX)
 #define CLIENT_TASK_TRIGGER_IN_MUX(i) (1 << ((i) + 8))
 
-#if defined(_MSC_VER) || defined(__BORLANDC__) || (defined(__WATCOMC__) && (__WATCOMC__ < 1200))
-#	define snprintf _snprintf
-#	define vsnprintf _vsnprintf
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/qse/lib/sed/Makefile.in b/qse/lib/sed/Makefile.in
index 7fed0f2a..21ad630e 100644
--- a/qse/lib/sed/Makefile.in
+++ b/qse/lib/sed/Makefile.in
@@ -247,6 +247,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/lib/xli/Makefile.in b/qse/lib/xli/Makefile.in
index b3e2715b..fd1d977c 100644
--- a/qse/lib/xli/Makefile.in
+++ b/qse/lib/xli/Makefile.in
@@ -220,6 +220,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/regress/Makefile.in b/qse/regress/Makefile.in
index 1f3825ef..7b11c218 100644
--- a/qse/regress/Makefile.in
+++ b/qse/regress/Makefile.in
@@ -199,6 +199,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/regress/awk/Makefile.in b/qse/regress/awk/Makefile.in
index 0f3f32af..72282f15 100644
--- a/qse/regress/awk/Makefile.in
+++ b/qse/regress/awk/Makefile.in
@@ -162,6 +162,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/regress/sed/Makefile.in b/qse/regress/sed/Makefile.in
index 62c353b9..275ab3ce 100644
--- a/qse/regress/sed/Makefile.in
+++ b/qse/regress/sed/Makefile.in
@@ -164,6 +164,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/samples/Makefile.in b/qse/samples/Makefile.in
index 58a7c765..4874a993 100644
--- a/qse/samples/Makefile.in
+++ b/qse/samples/Makefile.in
@@ -199,6 +199,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/samples/awk/Makefile.in b/qse/samples/awk/Makefile.in
index 34175693..48527454 100644
--- a/qse/samples/awk/Makefile.in
+++ b/qse/samples/awk/Makefile.in
@@ -322,6 +322,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/samples/cmn/Makefile.in b/qse/samples/cmn/Makefile.in
index 4073247f..a5833592 100644
--- a/qse/samples/cmn/Makefile.in
+++ b/qse/samples/cmn/Makefile.in
@@ -373,6 +373,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/samples/http/Makefile.in b/qse/samples/http/Makefile.in
index f84a1a33..f58f8510 100644
--- a/qse/samples/http/Makefile.in
+++ b/qse/samples/http/Makefile.in
@@ -204,6 +204,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/samples/sed/Makefile.in b/qse/samples/sed/Makefile.in
index 7824cd5e..acd181bd 100644
--- a/qse/samples/sed/Makefile.in
+++ b/qse/samples/sed/Makefile.in
@@ -233,6 +233,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@
diff --git a/qse/tools/Makefile.in b/qse/tools/Makefile.in
index a30e4796..d81d44ad 100644
--- a/qse/tools/Makefile.in
+++ b/qse/tools/Makefile.in
@@ -161,6 +161,7 @@ QSE_SIZEOF_OFF_T = @QSE_SIZEOF_OFF_T@
 QSE_SIZEOF_SHORT = @QSE_SIZEOF_SHORT@
 QSE_SIZEOF_VOID_P = @QSE_SIZEOF_VOID_P@
 QSE_SIZEOF_WCHAR_T = @QSE_SIZEOF_WCHAR_T@
+QUADMATH_LIBS = @QUADMATH_LIBS@
 RANLIB = @RANLIB@
 RM = @RM@
 RMDIR = @RMDIR@