diff --git a/ChangeLog b/ChangeLog
index 151db1c..f1d3bc8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 User johns
 Date:
 
+    Fix "make clean-plugins".
     Fix compile with newer libav.
     Fix OSD bugs.
     Add some VA-API VPP info outputs.
diff --git a/Makefile b/Makefile
index cf76c0e..187a917 100644
--- a/Makefile
+++ b/Makefile
@@ -112,10 +112,10 @@ export CFLAGS	= $(call PKGCFG,cflags)
 export CXXFLAGS = $(call PKGCFG,cxxflags)
 
 ifeq ($(CFLAGS),)
-$(error CFLAGS not set)
+$(warning CFLAGS not set)
 endif
 ifeq ($(CXXFLAGS),)
-$(error CXXFLAGS not set)
+$(warning CXXFLAGS not set)
 endif
 
 ### The version number of VDR's plugin API: