diff --git a/configure.ac b/configure.ac
index 99a2796..34cba11 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,6 +5,8 @@ AC_PROG_CC_C99
 AC_LIBTOOL_WIN32_DLL
 AC_PROG_LIBTOOL
 
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
+
 AC_MSG_CHECKING([for native Win32])
 case "$host" in
   *-*-mingw*)
diff --git a/src/Makefile.am b/src/Makefile.am
index 1dcca90..01819d6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -91,9 +91,9 @@ libdivecomputer_la_DEPENDENCIES = libdivecomputer.exp
 
 libdivecomputer.exp: libdivecomputer.symbols
 if IRDA
-	$(CPP) -P -DSERIAL -DIRDA - < $< | sed -e '/^$$/d' > $@
+	$(AM_V_GEN) $(CPP) -P -DSERIAL -DIRDA - < $< | sed -e '/^$$/d' > $@
 else
-	$(CPP) -P -DSERIAL - < $< | sed -e '/^$$/d' > $@
+	$(AM_V_GEN) $(CPP) -P -DSERIAL - < $< | sed -e '/^$$/d' > $@
 endif
 
 CLEANFILES = libdivecomputer.exp