Add Memento build option to Android build. Fix memory leaks.

Following up on a report from a potential customer, fix various places
in mupdf.c where we were leaking memory (devices not freed, context
not properly freed etc).

In order to track this down, I added a Memento build - just do:

	ndk-build MEMENTO=1

when building. This only checks for leaks, not for memory overwrites
by default as it uses MEMENTO_LEAKONLY to avoid any possibility of the
android kernel killing stuff for being too slow or using too much
memory.

1 files changed, 6 insertions, 0 deletions

diff --git a/fitz/memento.h b/fitz/memento.h
index 4831349b..75354384 100644
--- a/fitz/memento.h
+++ b/fitz/memento.h
@@ -137,6 +137,12 @@
 
 #include <memory.h>
 
+#ifdef __ANDROID__
+#define MEMENTO_ANDROID
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+
 #define MEMENTO_H
 
 #ifndef MEMENTO_UNDERLYING_MALLOC