--- curl-7.43.0/configure.ac.orig	2015-06-24 21:11:53.330168712 +0200
+++ curl-7.43.0/configure.ac	2015-06-24 21:19:26.686816353 +0200
@@ -1193,9 +1193,9 @@
 
   if test -z "$GSSAPI_INCS"; then
      if test -n "$host_alias" -a -f "$GSSAPI_ROOT/bin/$host_alias-krb5-config"; then
-        GSSAPI_INCS=`$GSSAPI_ROOT/bin/$host_alias-krb5-config --cflags gssapi`
+        GSSAPI_INCS=`CFLAGS= $GSSAPI_ROOT/bin/$host_alias-krb5-config --cflags gssapi`
      elif test -f "$KRB5CONFIG"; then
-        GSSAPI_INCS=`$KRB5CONFIG --cflags gssapi`
+        GSSAPI_INCS=`CFLAGS= $KRB5CONFIG --cflags gssapi`
      elif test "$GSSAPI_ROOT" != "yes"; then
         GSSAPI_INCS="-I$GSSAPI_ROOT/include"
      fi
@@ -1288,7 +1288,7 @@
         elif test -f "$KRB5CONFIG"; then
            dnl krb5-config doesn't have --libs-only-L or similar, put everything
            dnl into LIBS
-           gss_libs=`$KRB5CONFIG --libs gssapi`
+           gss_libs=`CFLAGS= $KRB5CONFIG --libs gssapi`
            LIBS="$gss_libs $LIBS"
         else
            case $host in