eina: Add execinfo.h to avoid implicit declarations.

If we have backtrace support we should also add the header before
using the backtrace and backtrace_symbols_fd functions.

diff --git a/src/lib/eina/eina_cow.c b/src/lib/eina/eina_cow.c
index 932ec57..f51fcf7 100644 (file)
--- a/src/lib/eina/eina_cow.c
+++ b/src/lib/eina/eina_cow.c
@@ -35,6 +35,10 @@
 # include <memcheck.h>
 #endif
 
+#ifdef HAVE_BACKTRACE
+# include <execinfo.h>
+#endif
+
 #ifdef EINA_COW_MAGIC_ON
 #define EINA_COW_MAGIC 0xDEADBEEF