diff --git a/config/pac.m4 b/config/pac.m4
index aa783333..e4d8c454 100644
--- a/config/pac.m4
+++ b/config/pac.m4
@@ -1056,9 +1056,9 @@ AC_ARG_WITH(blasdir,
 	[AC_HELP_STRING([--with-blasdir=<dir>], [search for BLAS library in <dir>])])
 case $with_blasdir in
   "") ;;
-      *) if test -d $with_blasdir; then 
+      *) if test -d $with_blasdir; then
 	    BLAS_LIBDIR="-L$with_blasdir";
-	    fi ;;
+	fi ;;
 esac
 # Get fortran linker names of BLAS functions to check for.
 #AC_FC_FUNC(sgemm)
@@ -1079,7 +1079,7 @@ if test "x$BLAS_LIBS" != x; then
 fi
 fi
 
-
+LIBS="$BLAS_LIBDIR $save_LIBS "
 # BLAS in ATLAS library? (http://math-atlas.sourceforge.net/)
 if test $pac_blas_ok = no; then
 	AC_LANG([C])
@@ -1173,10 +1173,8 @@ fi
 	
 # BLAS linked to by default?  (happens on some supercomputers)
 if test $pac_blas_ok = no; then
-	save_LIBS="$LIBS"; LIBS=" $BLAS_LIBDIR $LIBS"
 	AC_TRY_LINK_FUNC(sgemm, [pac_blas_ok=yes], [BLAS_LIBS=""])
 dnl	AC_CHECK_FUNC(sgemm, [pac_blas_ok=yes])
-	LIBS="$save_LIBS"
 fi
 
 # Generic BLAS library?
@@ -1199,6 +1197,7 @@ else
 fi
 ])dnl PAC_BLAS
 
+
 dnl @synopsis PAC_LAPACK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
 dnl @synopsis ACX_LAPACK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
 dnl
diff --git a/configure b/configure
index 21d17903..ed459b69 100755
--- a/configure
+++ b/configure
@@ -7643,7 +7643,7 @@ case $with_blasdir in
   "") ;;
       *) if test -d $with_blasdir; then
 	    BLAS_LIBDIR="-L$with_blasdir";
-	    fi ;;
+	fi ;;
 esac
 # Get fortran linker names of BLAS functions to check for.
 #AC_FC_FUNC(sgemm)
@@ -7681,7 +7681,7 @@ $as_echo "$pac_blas_ok" >&6; }
 fi
 fi
 
-
+LIBS="$BLAS_LIBDIR $save_LIBS "
 # BLAS in ATLAS library? (http://math-atlas.sourceforge.net/)
 if test $pac_blas_ok = no; then
 	ac_ext=c
@@ -8351,7 +8351,6 @@ fi
 
 # BLAS linked to by default?  (happens on some supercomputers)
 if test $pac_blas_ok = no; then
-	save_LIBS="$LIBS"; LIBS=" $BLAS_LIBDIR $LIBS"
 	cat > conftest.$ac_ext <<_ACEOF
       program main
       call sgemm
@@ -8364,7 +8363,6 @@ else
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-	LIBS="$save_LIBS"
 fi
 
 # Generic BLAS library?