--- netcdf-3.5.0/src/configure.orig	2015-11-06 21:25:09 UTC
+++ netcdf-3.5.0/src/configure
@@ -933,10 +933,10 @@ echo "configure:928: checking for top-le
 
 
 
-    echo "checking for m4 preprocessor" 1>&6
-echo "configure:938: checking for m4 preprocessor" >&5
+    echo "checking for gm4 preprocessor" 1>&6
+echo "configure:938: checking for gm4 preprocessor" >&5
     case "${M4-unset}" in
-	unset) for ac_prog in m4 gm4
+	unset) for ac_prog in gm4
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -969,9 +969,9 @@ fi
 
 test -n "$M4" && break
 done
-test -n "$M4" || M4="m4"
+test -n "$M4" || M4="gm4"
  ;;
-	*) for ac_prog in $M4 m4 gm4
+	*) for ac_prog in $M4 gm4
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -1004,11 +1004,11 @@ fi
 
 test -n "$M4" && break
 done
-test -n "$M4" || M4="m4"
+test -n "$M4" || M4="gm4"
  ;;
     esac
-    echo $ac_n "checking m4 flags""... $ac_c" 1>&6
-echo "configure:1012: checking m4 flags" >&5
+    echo $ac_n "checking gm4 flags""... $ac_c" 1>&6
+echo "configure:1012: checking gm4 flags" >&5
     case "${M4FLAGS-unset}" in
 	unset) M4FLAGS=-B10000 ;;
     esac