Linux 平台下 makefile例子 so库 头文件引用等等 以及如何编译成so的例子

1.编译成可执行文件：

CC := g++

CC=g++
CFLAGS:= -std=c++11 -g
CFLAGS += -I/usr/local/neuware/include
CFLAGS += -I/home/QMCY/ffmpeg/include
CFLAGS += -I/home/QMCY/ffmpeg/libevent/include

LIBPATH := -L/usr/local/neuware//lib64
LIBPATH +=  -L/home/QMCY/ffmpeg/lib
LIBPATH +=  -L/home/QMCY/ffmpeg/libevent/lib


LIBNAME= -lavcodec -lavformat -lavutil -lavdevice -lavfilter -lswscale -lswresample -lpthread -lx264 -ldl
LIBNAME += -lcncodec -lcndrv -lcnrt -lcncv -levent -levent_core -levent_extra -levent_pthreads


SRCS=QMCY_FFMPEG_DEMUX.cpp

SRCS+=cJSON.c
SRCS+=QMCY_COMMON.cpp
//SRCS+=QMCY_MLU_CODEC.cpp
//SRCS+=QMCY_MLU_CV.cpp
SRCS+=QMCY.cpp
SRCS+=QMCY_FFMPEG.cpp
SRCS+=QMCY_FFMPEG_CODEC.cpp
SRCS+=srs_librtmp.cpp


OBJS=$(SRCS:.cpp=.o)

EXEC=main3531

start:$(OBJS)
	$(CC) $(CFLAGS) -o $(EXEC) $(OBJS) $(LIBPATH) $(LIBNAME)
.cpp.o:
	$(CC) $(CFLAGS) -o $@ -c $<
clean:
	rm -rf $(OBJS)

2.编译成so

CC := g++

CC=g++
CFLAGS:= -std=c++11 -fPIC
CFLAGS += -I/home/QMCY/ffmpeg/include

LD:=ld

LIBPATH +=  -L/home/QMCY/ffmpeg/lib


LIBNAME= -lavcodec -lavformat -lavutil -lavdevice -lavfilter -lswscale -lswresample -lpthread


LDFLAGS:=-shared -fPIC

SRCS=QMCY_FFMPEG_DEMUX.cpp

SRCS+=QMCY_COMMON.cpp
SRCS+=QMCY_FFMPEG_CODEC.cpp
#SRCS+=srs_librtmp.cpp

OBJS=$(SRCS:.cpp=.o)

EXEC=libffmpeg.so

start:$(OBJS)
	  $(LD) $(LDFLAGS) -o $(EXEC) $(OBJS) $(LIBPATH) $(LIBNAME)
.cpp.o:
	$(CC) $(CFLAGS) -o $@ -c $<
clean:
	rm -rf $(OBJS)