diff --git a/scd/ChangeLog b/scd/ChangeLog
index cb759c0b2..b0f07dc82 100644
--- a/scd/ChangeLog
+++ b/scd/ChangeLog
@@ -1,3 +1,9 @@
+2004-07-27  Moritz Schulte  <moritz@g10code.com>
+
+	* apdu.c: Include <signal.h>.
+
+	* Makefile.am: Use @DL_LIBS@ instead of -ldl.
+
 2004-07-22  Werner Koch  <wk@g10code.de>
 
 	* Makefile.am: Make OpenSC lib link after libgcrypt. Do not link
diff --git a/scd/apdu.c b/scd/apdu.c
index 28d32ad2c..7898452c4 100644
--- a/scd/apdu.c
+++ b/scd/apdu.c
@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
+#include <signal.h>
 #ifdef USE_GNU_PTH
 # include <pth.h>
 # include <unistd.h>