diff --git a/Makefile.in b/Makefile.in
index 102e2d6..d7ea5f5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -291,7 +291,6 @@ SHELL = @SHELL@
 SOCKET_LIBS = @SOCKET_LIBS@
 SSL_LIBS = @SSL_LIBS@
 STRIP = @STRIP@
-UNICOWS_LIBS = @UNICOWS_LIBS@
 UNWIND_LIBS = @UNWIND_LIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
diff --git a/bin/Makefile.am b/bin/Makefile.am
index a79552f..3052b02 100644
--- a/bin/Makefile.am
+++ b/bin/Makefile.am
@@ -11,8 +11,8 @@ LDFLAGS_COMMON = -L$(abs_builddir)/../lib -L$(libdir)
 LIBADD_COMMON = ../lib/libhio.la 
 
 if ENABLE_ALL_STATIC
-LDFLAGS_ALL_STATIC = -all-static
-LIBADD_ALL_STATIC = -ldl -lm ## TODO: this may very depending on platforms
+LDFLAGS_ALL_STATIC ?= -all-static
+LIBADD_ALL_STATIC ?= 
 else
 LDFLAGS_ALL_STATIC = 
 LIBADD_ALL_STATIC =
diff --git a/bin/Makefile.in b/bin/Makefile.in
index e8a0f21..4f475c8 100644
--- a/bin/Makefile.in
+++ b/bin/Makefile.in
@@ -328,7 +328,6 @@ SHELL = @SHELL@
 SOCKET_LIBS = @SOCKET_LIBS@
 SSL_LIBS = @SSL_LIBS@
 STRIP = @STRIP@
-UNICOWS_LIBS = @UNICOWS_LIBS@
 UNWIND_LIBS = @UNWIND_LIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
@@ -397,9 +396,7 @@ CFLAGS_COMMON =
 LDFLAGS_COMMON = -L$(abs_builddir)/../lib -L$(libdir) 
 LIBADD_COMMON = ../lib/libhio.la 
 @ENABLE_ALL_STATIC_FALSE@LDFLAGS_ALL_STATIC = 
-@ENABLE_ALL_STATIC_TRUE@LDFLAGS_ALL_STATIC = -all-static
 @ENABLE_ALL_STATIC_FALSE@LIBADD_ALL_STATIC = 
-@ENABLE_ALL_STATIC_TRUE@LIBADD_ALL_STATIC = -ldl -lm ## TODO: this may very depending on platforms
 hio_execd_SOURCES = execd.c
 hio_execd_CPPFLAGS = $(CPPFLAGS_COMMON)
 hio_execd_CFLAGS = $(CFLAGS_COMMON)
@@ -969,6 +966,9 @@ uninstall-am: uninstall-binPROGRAMS
 .PRECIOUS: Makefile
 
 
+@ENABLE_ALL_STATIC_TRUE@LDFLAGS_ALL_STATIC ?= -all-static
+@ENABLE_ALL_STATIC_TRUE@LIBADD_ALL_STATIC ?= 
+
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT:
diff --git a/configure b/configure
index f482728..181547e 100755
--- a/configure
+++ b/configure
@@ -659,7 +659,6 @@ ENABLE_SSL_TRUE
 SSL_LIBS
 ENABLE_ALL_STATIC_FALSE
 ENABLE_ALL_STATIC_TRUE
-UNICOWS_LIBS
 PTHREAD_CFLAGS
 PTHREAD_LIBS
 PTHREAD_CC
@@ -15474,42 +15473,6 @@ $as_echo "#define HAVE_PTHREAD_MUTEX_TRYLOCK 1" >>confdefs.h
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lunicows" >&5
-$as_echo_n "checking for main in -lunicows... " >&6; }
-if ${ac_cv_lib_unicows_main+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lunicows  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-
-int
-main ()
-{
-return main ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_unicows_main=yes
-else
-  ac_cv_lib_unicows_main=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unicows_main" >&5
-$as_echo "$ac_cv_lib_unicows_main" >&6; }
-if test "x$ac_cv_lib_unicows_main" = xyes; then :
-  UNICOWS_LIBS="-lunicows"
-fi
-
-
-
 # Check whether --enable-all-static was given.
 if test "${enable_all_static+set}" = set; then :
   enableval=$enable_all_static; enable_all_static_is=$enableval
diff --git a/configure.ac b/configure.ac
index 9456c17..037641f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -241,13 +241,6 @@ AC_CHECK_LIB([pthread], [pthread_mutex_trylock],  [
 	AC_DEFINE([HAVE_PTHREAD_MUTEX_TRYLOCK],1,[pthreads has pthread_mutex_trylock()])
 ])
 
-dnl check is the import library for unicows.dll exists
-dnl this check doesn't look for a particular symbol
-dnl but for the symbol 'main' since i want to check 
-dnl the existence of the libaray.
-AC_CHECK_LIB([unicows], [main], [UNICOWS_LIBS="-lunicows"])
-AC_SUBST(UNICOWS_LIBS)
-
 dnl ===== enable-all-static =====
 AC_ARG_ENABLE([all-static], [AS_HELP_STRING([--enable-all-static],[build the full static binaries(default. no)])],
 	enable_all_static_is=$enableval,enable_all_static_is=no)
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 0d187ac..d6a5ee2 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -368,7 +368,6 @@ SHELL = @SHELL@
 SOCKET_LIBS = @SOCKET_LIBS@
 SSL_LIBS = @SSL_LIBS@
 STRIP = @STRIP@
-UNICOWS_LIBS = @UNICOWS_LIBS@
 UNWIND_LIBS = @UNWIND_LIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
diff --git a/t/Makefile.in b/t/Makefile.in
index 31eda54..190ccd0 100644
--- a/t/Makefile.in
+++ b/t/Makefile.in
@@ -490,7 +490,6 @@ SHELL = @SHELL@
 SOCKET_LIBS = @SOCKET_LIBS@
 SSL_LIBS = @SSL_LIBS@
 STRIP = @STRIP@
-UNICOWS_LIBS = @UNICOWS_LIBS@
 UNWIND_LIBS = @UNWIND_LIBS@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@