diff -ru ncbi-blast-2.2.27+-src.orig/c++/src/build-system/configure ncbi-blast-2.2.27+-src/c++/src/build-system/configure
--- ncbi-blast-2.2.27+-src.orig/c++/src/build-system/configure	2012-08-08 17:36:55.000000000 +0200
+++ ncbi-blast-2.2.27+-src/c++/src/build-system/configure	2013-01-18 13:53:21.006190873 +0100
@@ -4723,7 +4723,7 @@
    compiler_ver="$icc_ver"
    compiler="ICC"
    ncbi_compiler="ICC"
-   ncbi_compiler_ver="`echo $icc_ver | sed 's%.*Version \([0-9.]*\).*%\1%'`"
+   ncbi_compiler_ver="`echo $icc_ver | sed 's%.*Version \([0-9.]*\).*%\1%' | sed 's/\.//g'`"
              WithFeatures="$WithFeatures${WithFeaturesSep}ICC"; WithFeaturesSep=" "
 elif test "$VAC" = "yes" ; then
    compiler_ver="$vac_ver"
@@ -5546,6 +5546,8 @@
     mips-sgi-irix*:KCC )
       ARCH_CFLAGS="-64"
       ;;
+    *:ICC )
+      ;;
     * )
       { { echo "$as_me:$LINENO: error: Do not know how to compile 64-bit with compiler $CXX $compiler_ver $host:$compiler" >&5
 echo "$as_me: error: Do not know how to compile 64-bit with compiler $CXX $compiler_ver $host:$compiler" >&2;}
