1 files changed, 32 insertions, 10 deletions
diff --git a/lib/erl_interface/src/misc/eidef.h b/lib/erl_interface/src/misc/eidef.h
index bd3d0bf631..9ac49434e6 100644
--- a/lib/erl_interface/src/misc/eidef.h
+++ b/lib/erl_interface/src/misc/eidef.h
@@ -3,16 +3,17 @@
  * 
  * Copyright Ericsson AB 2002-2009. All Rights Reserved.
  * 
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- * 
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  * 
  * %CopyrightEnd%
  *
@@ -41,6 +42,27 @@
 typedef int socklen_t;
 #endif
 
+#ifdef USE_ISINF_ISNAN		/* simulate finite() */
+#  define isfinite(f) (!isinf(f) && !isnan(f))
+#  define HAVE_ISFINITE
+#elif defined(__GNUC__) && defined(HAVE_FINITE)
+/* We use finite in gcc as it emits assembler instead of
+   the function call that isfinite emits. The assembler is
+   significantly faster. */
+#  ifdef isfinite
+#     undef isfinite
+#  endif
+#  define isfinite finite
+#  ifndef HAVE_ISFINITE
+#    define HAVE_ISFINITE
+#  endif
+#elif defined(isfinite) && !defined(HAVE_ISFINITE)
+#  define HAVE_ISFINITE
+#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE)
+#  define isfinite finite
+#  define HAVE_ISFINITE
+#endif
+
 typedef unsigned char  uint8;	/* FIXME use configure */
 typedef unsigned short uint16;
 typedef unsigned int   uint32;