Move the "all" make target before including any platform files

This makes sure that "all" stays as the default make target even if
platform makefiles add extra rules.

Makefile

@@ -60,6 +60,9 @@ CFLAGS += -fsanitize=address
 LDFLAGS += -fsanitize=address
 endif
 
+# Make sure the all target is the first one
+all: libraries binaries
+
 include $(SRC_PATH)build/platform-$(OS).mk
 
 
@@ -139,8 +142,6 @@ COMMON_UNITTEST_CFLAGS += $(CODEC_UNITTEST_CFLAGS)
 
 .PHONY: test gtest-bootstrap clean $(PROJECT_NAME).pc $(PROJECT_NAME)-static.pc
 
-all: libraries binaries
-
 generate-version:
 	$(QUIET)cd $(SRC_PATH) && sh ./codec/common/generate_version.sh
 

build/platform-android.mk

@@ -79,8 +79,6 @@ clean_Android_dec:
 clean_Android_enc:
 	-cd ./codec/build/android/enc && $(NDKROOT)/ndk-build APP_ABI=$(APP_ABI) clean && ant clean
 else
-all:
-	@:
 clean_Android:
 	@:
 endif

build/platform-msvc.mk

@@ -3,7 +3,4 @@ LDFLAGS += user32.lib
 CFLAGS_OPT += -MT
 CFLAGS_DEBUG += -MTd -Gm
 
-# Make sure a plain "make" without a target still builds "all"
-all:
-
 $(LIBPREFIX)$(PROJECT_NAME).$(SHAREDLIBSUFFIXVER): openh264.res