--- configure.orig	Wed Mar 17 16:58:16 2004
+++ configure	Wed Mar 17 16:57:28 2004
@@ -902,6 +902,55 @@
     loadptraj="$load"
     ;;
 
+xlf90_macosx|macosx)
+
+    xhome='/usr/X11R6'
+    libpath=/System/Library/Frameworks/Accelerate.framework
+    if [ -e $libpath/Accelerate ]; then
+        loadlib="$loadlib -Wl,-framework -Wl,Accelerate"
+        use_blas=VENDOR_SUPPLIED
+        use_lapack=VENDOR_SUPPLIED
+        fflags="-qextname=ddot:fdate:flush:lsame:dscal:dnrm2:idamax:drot:dswap:dspmv:daxpy:dspr2:dgemm:dcopy:dgemv:dtrmv:dtrmm:dger:lsame:dspev:dgeev:dspevd:dsyev:dppsv:dspsv"
+        foptflags="-qextname=ddot:fdate:flush:lsame:dscal:dnrm2:idamax:drot:dswap:dspmv:daxpy:dspr2:dgemm:dcopy:dgemv:dtrmv:dtrmm:dger:lsame:dspev:dgeev:dspevd:dsyev:dppsv:dspsv"
+    fi
+    sysdir='Machines/ibm_aix'
+    fppflags="$fppflags -DNMLEQ -DCLINK_PLAIN"
+    fpp='/opt/ibmcmp/xlf/8.1/exe/cpp'
+    if [ $parallel = "mpi" ]; then
+        fppflags="$fppflags -DPOE"
+        fpp="$fpp -I/usr/lpp/ppe.poe/include"
+        fc='mpxlf90_r -bmaxdata:0x80000000'
+    else
+        fc=xlf90
+    fi
+    cc=xlc
+    altcc=gcc
+    cppflags="-DCLINK_PLAIN"
+    cflags="-O2"
+    cplusplus=g++
+    if [ $static = "yes" ]; then
+        static_flag='-bstatic'
+    fi
+    load="$fc $fflags $static_flag "
+    loadcc="$cc $static_flag"
+
+    fflags="$fflags -qfixed -c"
+    foptflags="$foptflags -qfixed -O3 -qmaxmem=-1 -qarch=auto -qtune=auto -c"
+    if [ $big = "yes" ]; then
+        echo "big option is not implemented yet."
+    fi
+    if [ $verbose = "yes" ]; then
+        verbosity='-qsource -qreport=hotlist'
+    fi
+    fflags="$fflags $bigness $verbosity"
+    foptflags="$foptflags $bigness $verbosity"
+    freeformat_flag='-qfree=f90'
+    ar='ar rvs '
+    ranlib=ranlib
+    loadptraj="$load"
+    m4='m4 -B50000'
+    ;;
+
 *)
     echo "Architecture/compiler $arch is not supported (?)" 1>&2
     usage