added --enable-quadmath in configure.ac

configure

@@ -624,7 +624,7 @@ PACKAGE_TARNAME='hio'
 PACKAGE_VERSION='0.1.0'
 PACKAGE_STRING='hio 0.1.0'
 PACKAGE_BUGREPORT='Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)'
-PACKAGE_URL='http://code.miflux.com/@hio'
+PACKAGE_URL='http://code.miflux.com/hyung-hwan/hio'
 
 # Factoring default headers for most tests.
 ac_includes_default="\
@@ -834,6 +834,7 @@ enable_libtool_lock
 enable_largefile
 enable_all_static
 with_all_static_libs
+enable_quadmath
 enable_ssl
 enable_mariadb
 with_mariadb
@@ -1492,6 +1493,8 @@ Optional Features:
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --disable-largefile     omit support for large files
   --enable-all-static     build the full static binaries(default. no)
+  --enable-quadmath       attempt to support 128-bit floating point number if
+                          available(default. no)
   --enable-ssl            build the library in the ssl mode (default. yes)
   --enable-mariadb        enable mariadb support (default. no)
   --enable-debug          build the library in the debug mode (default. no)
@@ -1534,7 +1537,7 @@ Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to <Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)>.
-hio home page: <http://code.miflux.com/@hio>.
+hio home page: <http://code.miflux.com/hyung-hwan/hio>.
 _ACEOF
 ac_status=$?
 fi
@@ -17084,6 +17087,16 @@ fi
 ALL_STATIC_LIBS="$with_all_static_libs"
 
 
+# Check whether --enable-quadmath was given.
+if test ${enable_quadmath+y}
+then :
+  enableval=$enable_quadmath; enable_quadmath_is=$enableval
+else $as_nop
+  enable_quadmath_is=no
+
+fi
+
+
 # Check whether --enable-ssl was given.
 if test ${enable_ssl+y}
 then :
@@ -20163,6 +20176,11 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
+if test "x${enable_quadmath_is}" == "xno"
+then
+	ac_cv_sizeof___float128=0
+fi
+
 if test ${ac_cv_sizeof___float128} -gt 0
 then
 	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking __float128 with linking" >&5
@@ -20192,7 +20210,6 @@ else $as_nop
 printf "%s\n" "no" >&6; }
 			ac_cv_sizeof___float128=0
 
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
@@ -21415,7 +21432,7 @@ Configuration commands:
 $config_commands
 
 Report bugs to <Chung, Hyung-Hwan (hyunghwan.chung@gmail.com)>.
-hio home page: <http://code.miflux.com/@hio>."
+hio home page: <http://code.miflux.com/hyung-hwan/hio>."
 
 _ACEOF
 ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`