--- aclocal_fc.m4.orig	2012-09-07 01:56:22.438555283 +0300
+++ aclocal_fc.m4	2012-09-07 02:00:27.089555215 +0300
@@ -23,6 +23,8 @@
 dnl fort is the Compaq Fortran 90 (now 95) compiler for Tru64 and Linux/Alpha.
 dnl pathf90 is the Pathscale Fortran 90 compiler
 dnl ifort is another name for the Intel f90 compiler
+dnl openf90 is Open64 f90 compiler
+dnl openf95 is Open64 f95 compiler
 dnl efc - An older Intel compiler (?)
 dnl ifc - An older Intel compiler
 dnl fc  - A compiler on some unknown system.  This has been removed because
@@ -35,7 +37,7 @@
 PAC_PUSH_FLAG([FCFLAGS])
 AC_PROG_FC([m4_default([$1],
            [ifort pgf90 pathf90 pathf95 xlf90 xlf95 xlf2003 f90 epcf90 f95 fort lf95 \
-            gfortran g95 ifc efc gfc])])
+            openf90 openf95 gfortran g95 ifc efc gfc])])
 PAC_POP_FLAG([FCFLAGS])
 ])
 dnl
@@ -691,6 +693,8 @@
     if test -f conftest.txt ; then
         if grep 'Portland Group' conftest.txt >/dev/null 2>&1 ; then
             pac_cv_fc_vendor=pgi
+        elif grep 'Open64' conftest.txt >/dev/null 2>&1 ; then
+            pac_cv_fc_vendor=open64
         elif grep 'Sun Workshop' conftest.txt >/dev/null 2>&1 ; then
             pac_cv_fc_vendor=sun
 	elif grep 'Sun Fortran 9' conftest.txt >/dev/null 2>&1 ; then 
@@ -712,6 +716,10 @@
     # Try to use the compiler name
     if test "$FC" = "ifort" -o "$FC" = "ifc" ; then
         pac_cv_fc_vendor=intel
+    elif test "$FC" = "openf90" ; then
+        pac_cv_fc_vendor=open64
+    elif test "$FC" = "openf95" ; then
+        pac_cv_fc_vendor=open64
     elif test "$FC" = "pgf90" ; then
         pac_cv_fc_vendor=pgi
     elif test "$FC" = "xlf90" -o "$FC" = "xlf90_r" ; then