align header: define PAGE_SIZE

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/include/babeltrace/align.h b/include/babeltrace/align.h
index d5197cb42f5e6bb6b7d0ce991bb7088eff65749b..c5589c43aca6253a42470cb6b42214d5763ac943 100644 (file)
--- a/include/babeltrace/align.h
+++ b/include/babeltrace/align.h
@@ -18,6 +18,12 @@
  */
 
 #include <babeltrace/compiler.h>
+#include <unistd.h>
+#include <limits.h>
+
+#ifndef PAGE_SIZE              /* Cygwin limits.h defines its own PAGE_SIZE */
+#define PAGE_SIZE              sysconf(_SC_PAGE_SIZE)
+#endif
 
 #define ALIGN(x, a)            __ALIGN_MASK(x, (typeof(x))(a) - 1)
 #define __ALIGN_MASK(x, mask)  (((x) + (mask)) & ~(mask))