Makefile: Provide a way to disable silent rules

Fixes #571

1 files changed, 24 insertions, 16 deletions

diff --git a/Makefile b/Makefile
index 29a29d1..fc41790 100644
--- a/Makefile
+++ b/Makefile
@@ -69,26 +69,34 @@ ALL_LDFLAGS:=${LDFLAGS} -lpthread -lm \
 			${LIBGCRYPT_LDFLAGS} ${LIBJSONC_LDFLAGS} \
 			${LIBAO_LDFLAGS}
 
+# Be verbose if V=1 (gnu autotools’ --disable-silent-rules)
+SILENTCMD:=@
+SILENTECHO:=@echo
+ifeq (${V},1)
+	SILENTCMD:=
+	SILENTECHO:=@true
+endif
+
 # build pianobar
 ifeq (${DYNLINK},1)
 pianobar: ${PIANOBAR_OBJ} libpiano.so.0
-	@echo "  LINK  $@"
-	@${CC} -o $@ ${PIANOBAR_OBJ} -L. -lpiano ${ALL_LDFLAGS}
+	${SILENTECHO} "  LINK  $@"
+	${SILENTCMD}${CC} -o $@ ${PIANOBAR_OBJ} -L. -lpiano ${ALL_LDFLAGS}
 else
 pianobar: ${PIANOBAR_OBJ} ${LIBPIANO_OBJ}
-	@echo "  LINK  $@"
-	@${CC} -o $@ ${PIANOBAR_OBJ} ${LIBPIANO_OBJ} ${ALL_LDFLAGS}
+	${SILENTECHO} "  LINK  $@"
+	${SILENTCMD}${CC} -o $@ ${PIANOBAR_OBJ} ${LIBPIANO_OBJ} ${ALL_LDFLAGS}
 endif
 
 # build shared and static libpiano
 libpiano.so.0: ${LIBPIANO_RELOBJ} ${LIBPIANO_OBJ}
-	@echo "  LINK  $@"
-	@${CC} -shared -Wl,-soname,libpiano.so.0 -o libpiano.so.0.0.0 \
+	${SILENTECHO} "  LINK  $@"
+	${SILENTCMD}${CC} -shared -Wl,-soname,libpiano.so.0 -o libpiano.so.0.0.0 \
 			${LIBPIANO_RELOBJ} ${ALL_LDFLAGS}
-	@ln -fs libpiano.so.0.0.0 libpiano.so.0
-	@ln -fs libpiano.so.0 libpiano.so
-	@echo "    AR  libpiano.a"
-	@${AR} rcs libpiano.a ${LIBPIANO_OBJ}
+	${SILENTCMD}ln -fs libpiano.so.0.0.0 libpiano.so.0
+	${SILENTCMD}ln -fs libpiano.so.0 libpiano.so
+	${SILENTECHO} "    AR  libpiano.a"
+	${SILENTCMD}${AR} rcs libpiano.a ${LIBPIANO_OBJ}
 
 
 -include $(PIANOBAR_SRC:.c=.d)
@@ -96,17 +104,17 @@ libpiano.so.0: ${LIBPIANO_RELOBJ} ${LIBPIANO_OBJ}
 
 # build standard object files
 %.o: %.c
-	@echo "    CC  $<"
-	@${CC} -c -o $@ ${ALL_CFLAGS} -MMD -MF $*.d -MP $<
+	${SILENTECHO} "    CC  $<"
+	${SILENTCMD}${CC} -c -o $@ ${ALL_CFLAGS} -MMD -MF $*.d -MP $<
 
 # create position independent code (for shared libraries)
 %.lo: %.c
-	@echo "    CC  $< (PIC)"
-	@${CC} -c -fPIC -o $@ ${ALL_CFLAGS} -MMD -MF $*.d -MP $<
+	${SILENTECHO} "    CC  $< (PIC)"
+	${SILENTCMD}${CC} -c -fPIC -o $@ ${ALL_CFLAGS} -MMD -MF $*.d -MP $<
 
 clean:
-	@echo " CLEAN"
-	@${RM} ${PIANOBAR_OBJ} ${LIBPIANO_OBJ} \
+	${SILENTECHO} " CLEAN"
+	${SILENTCMD}${RM} ${PIANOBAR_OBJ} ${LIBPIANO_OBJ} \
 			${LIBPIANO_RELOBJ} pianobar libpiano.so* \
 			libpiano.a $(PIANOBAR_SRC:.c=.d) $(LIBPIANO_SRC:.c=.d)