From f1ed0955cb9f4c1279352b5a9d369b93175ff737 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 1 Aug 2016 19:44:09 -0400
Subject: Check for posix_memalign

---
 src/masher.c | 5 ++++-
 wscript      | 6 ++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/masher.c b/src/masher.c
index 6d501c5..0a9eeda 100644
--- a/src/masher.c
+++ b/src/masher.c
@@ -88,8 +88,11 @@ activate(LV2_Handle instance)
 	plugin->write_grain = 0;
 
 	for (i=0; i < GRAINSTORE_SIZE; ++i) {
-		//plugin->grain_store[i].data = (float*)calloc(MAX_GRAIN_SIZE, sizeof(float));
+#ifdef HAVE_POSIX_MEMALIGN
 		posix_memalign((void**)&plugin->grain_store[i].data, 16, MAX_GRAIN_SIZE * sizeof(float));
+#else
+		plugin->grain_store[i].data = (float*)calloc(MAX_GRAIN_SIZE, sizeof(float));
+#endif
 		plugin->grain_store[i].length = 0;
 	}
 }
diff --git a/wscript b/wscript
index d158f33..ce7ad43 100644
--- a/wscript
+++ b/wscript
@@ -29,6 +29,12 @@ def configure(conf):
 
     autowaf.check_pkg(conf, 'lv2', atleast_version='1.0.0', uselib_store='LV2')
 
+    conf.check(function_name = 'posix_memalign',
+               defines       = '_POSIX_C_SOURCE=200809L',
+               header_name   = 'stdlib.h',
+               define_name   = 'HAVE_POSIX_MEMALIGN',
+               mandatory     = False)
+
     # Set env.pluginlib_PATTERN
     pat = conf.env.cshlib_PATTERN
     if pat[0:3] == 'lib':
-- 
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