From e1a92c370e5bd57a29f4ad66c72bae1078275f62 Mon Sep 17 00:00:00 2001
From: Jukka Ojanen <jukka.ojanen@linkotec.net>
Date: Thu, 30 Jul 2015 12:06:13 +0300
Subject: Detect presence of malloc.h, fixes anthonix/ffts#40

---
 CMakeLists.txt      | 5 +++++
 src/ffts_internal.h | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5b85fb1..63e636f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,12 +39,17 @@ include(CMakePushCheckState)
 add_definitions(-DFFTS_CMAKE_GENERATED)
 
 # check existence of various headers
+check_include_file(malloc.h   HAVE_MALLOC_H)
 check_include_file(stdint.h   HAVE_STDINT_H)
 check_include_file(stdlib.h   HAVE_STDLIB_H)
 check_include_file(string.h   HAVE_STRING_H)
 check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
 check_include_file(unistd.h   HAVE_UNISTD_H)
 
+if(HAVE_MALLOC_H)
+  add_definitions(-DHAVE_MALLOC_H)
+endif(HAVE_MALLOC_H)
+
 if(HAVE_STDINT_H)
   add_definitions(-DHAVE_STDINT_H)
 endif(HAVE_STDINT_H)
diff --git a/src/ffts_internal.h b/src/ffts_internal.h
index 14d037d..30e814b 100644
--- a/src/ffts_internal.h
+++ b/src/ffts_internal.h
@@ -38,7 +38,10 @@
 #include "ffts_attributes.h"
 #include "types.h"
 
+#ifdef HAVE_MALLOC_H
 #include <malloc.h>
+#endif
+
 #include <stddef.h>
 
 #ifdef HAVE_STDINT_H
-- 
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