GCC 预处理，汇编，编译，链接，连接静态库，动态库

gcc Record

gcc -E file1.c > output
gcc -E file1.c -o file1.i
gcc -S file1.i -o file1.s
gcc -S file1.c # output file1.s
gcc -c file1.c
gcc -c file1.s

gcc file0.c file1.s file2.o

GCC include

1. -I # gcc file1 -I include -I include1 ...
2. $C_INCLUDE_PATH
3. $CPLUS_INCLUDE_PATH
4. 引用include的文件路径(仅限""引用)
5. /usr/local/include/ 等

静态链接库
ar rcs libfile1.a file1.o
使用 gcc file0.c -L . -lfile1

GCC lib 搜索路径

1. /usr/local/lib 等
2. -L

动态链接库
gcc -shared -fPIC -c file1.c
gcc -shared -fPIC -o libfile1.so file1.o

1. /usr/lib
2. $LD_LIBRARY_PATH