Index: src/libcfa/Makefile.am
===================================================================
--- src/libcfa/Makefile.am	(revision e5c84881b9bfd32f54aba27ca72ecd7ffb1764ac)
+++ src/libcfa/Makefile.am	(revision adb4a3a5d6646231a017bd7e04970e47254e7633)
@@ -31,8 +31,8 @@
 
 libcfa_a-libcfa-prelude.o : libcfa-prelude.c
-	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -O2 -c -o $@ $<
+	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -Wall -O2 -c -o $@ $<
 
 libcfa_d_a-libcfa-prelude.o : libcfa-prelude.c
-	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -D__CFA_DEBUG__ -O0 -c -o $@ $<
+	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -D__CFA_DEBUG__ -Wall -O0 -c -o $@ $<
 
 EXTRA_FLAGS = -g -Wall -Wno-unused-function -imacros libcfa-prelude.c @CFA_FLAGS@
Index: src/libcfa/Makefile.in
===================================================================
--- src/libcfa/Makefile.in	(revision e5c84881b9bfd32f54aba27ca72ecd7ffb1764ac)
+++ src/libcfa/Makefile.in	(revision adb4a3a5d6646231a017bd7e04970e47254e7633)
@@ -1498,8 +1498,8 @@
 
 libcfa_a-libcfa-prelude.o : libcfa-prelude.c
-	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -O2 -c -o $@ $<
+	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -Wall -O2 -c -o $@ $<
 
 libcfa_d_a-libcfa-prelude.o : libcfa-prelude.c
-	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -D__CFA_DEBUG__ -O0 -c -o $@ $<
+	 ${AM_V_GEN}@BACKEND_CC@ @CFA_FLAGS@ -D__CFA_DEBUG__ -Wall -O0 -c -o $@ $<
 
 # extensionless header files are overridden by -o flag in default makerule => explicitly override default rule to silently do nothing