build: rework rules for things in the tools dir

Declaring tools associated with each library in their respective
makefiles allows these tools to easily depend on the correct
prerequisites and link against the libs they need.
Signed-off-by: NMans Rullgard <mans@mansr.com>

Makefile

@@ -58,6 +58,8 @@ PROGS      := $(PROGS-yes:%=%$(EXESUF))
 OBJS        = $(PROGS-yes:%=%.o) cmdutils.o
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr base64
 HOSTPROGS  := $(TESTTOOLS:%=tests/%)
+TOOLS       = qt-faststart trasher
+TOOLS-$(CONFIG_ZLIB) += cws2fws
 
 BASENAMES   = ffmpeg ffplay ffprobe ffserver
 ALLPROGS    = $(BASENAMES:%=%$(EXESUF))
@@ -86,6 +88,11 @@ FF_DEP_LIBS  := $(DEP_LIBS)
 
 all: $(FF_DEP_LIBS) $(PROGS)
 
+$(TOOLS): %$(EXESUF): %.o
+	$(LD) $(LDFLAGS) -o $@ $< $(ELIBS)
+
+tools/cws2fws$(EXESUF): ELIBS = -lz
+
 config.h: .config
 .config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
 	@-tput bold 2>/dev/null
@@ -94,7 +101,7 @@ config.h: .config
 
 SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \
                ALTIVEC-OBJS MMX-OBJS NEON-OBJS X86-OBJS YASM-OBJS-FFT YASM-OBJS \
-               HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS ARMV6-OBJS
+               HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS ARMV6-OBJS TOOLS
 
 define RESET
 $(1) :=
@@ -116,18 +123,6 @@ ffserver$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS)
 $(PROGS): %$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
 	$(LD) $(FF_LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)
 
-TOOLS     = cws2fws graph2dot lavfi-showfiltfmts pktdumper probetest qt-faststart trasher
-TOOLOBJS := $(TOOLS:%=tools/%.o)
-TOOLS    := $(TOOLS:%=tools/%$(EXESUF))
-
-alltools: $(TOOLS)
-
-tools/%$(EXESUF): tools/%.o
-	$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
-
-$(TOOLOBJS): %.o: %.c | tools
-	$(CC) $(CPPFLAGS) $(CFLAGS) -c $(CC_O) $<
-
 OBJDIRS += tools
 
 -include $(wildcard tools/*.d)

common.mak

@@ -20,6 +20,9 @@ TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
 TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))
 HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)
 HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
+TOOLS     += $(TOOLS-yes)
+TOOLOBJS  := $(TOOLS:%=tools/%.o)
+TOOLS     := $(TOOLS:%=tools/%$(EXESUF))
 
 DEP_LIBS := $(foreach NAME,$(FFLIBS),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
 
@@ -28,6 +31,8 @@ SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
 SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
 checkheaders: $(filter-out $(SKIPHEADERS:.h=.ho),$(ALLHEADERS:.h=.ho))
 
+alltools: $(TOOLS)
+
 $(HOSTOBJS): %.o: %.c
 	$(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
 
@@ -37,6 +42,7 @@ $(HOSTPROGS): %$(HOSTEXESUF): %.o
 $(OBJS):     | $(dir $(OBJS))
 $(HOSTOBJS): | $(dir $(HOSTOBJS))
 $(TESTOBJS): | $(dir $(TESTOBJS))
+$(TOOLOBJS): | tools
 
 OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOSTOBJS) $(TESTOBJS))
 

libavfilter/Makefile

@@ -62,4 +62,6 @@ OBJS-$(CONFIG_NULLSINK_FILTER)               += vsink_nullsink.o
 
 DIRS = x86
 
+TOOLS = graph2dot lavfi-showfiltfmts
+
 include $(SRC_PATH)/subdir.mak

libavformat/Makefile

@@ -335,6 +335,7 @@ OBJS-$(CONFIG_JACK_INDEV)                += timefilter.o
 
 EXAMPLES  = metadata output
 TESTPROGS = timefilter
+TOOLS     = pktdumper probetest
 
 include $(SRC_PATH)/subdir.mak
 

subdir.mak

@@ -34,7 +34,7 @@ install-libs-$(CONFIG_STATIC): install-lib$(NAME)-static
 install-libs-$(CONFIG_SHARED): install-lib$(NAME)-shared
 
 define RULES
-$(SUBDIR)%$(EXESUF): $(SUBDIR)%.o
+$(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
 	$$(LD) $(FFLDFLAGS) -o $$@ $$^ -l$(FULLNAME) $(FFEXTRALIBS) $$(ELIBS)
 
 $(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
@@ -91,7 +91,7 @@ endef
 
 $(eval $(RULES))
 
-$(EXAMPLES) $(TESTPROGS): $(THIS_LIB) $(DEP_LIBS)
+$(EXAMPLES) $(TESTPROGS) $(TOOLS): $(THIS_LIB) $(DEP_LIBS)
 
 examples: $(EXAMPLES)
 testprogs: $(TESTPROGS)

tests/Makefile

@@ -31,9 +31,6 @@ tests/data/asynth1.sw tests/vsynth%/00.pgm: TAG = GEN
 tests/seek_test$(EXESUF): tests/seek_test.o $(FF_DEP_LIBS)
 	$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
 
-tools/lavfi-showfiltfmts$(EXESUF): tools/lavfi-showfiltfmts.o $(FF_DEP_LIBS)
-	$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
-
 include $(SRC_PATH)/tests/fate.mak
 include $(SRC_PATH)/tests/fate2.mak