Gcc Linkage -L option: Alternative ways to specify a path to a dynamic library

Question

If I compile my source code with "-L". can find the dynamic library libmd5.so.

gcc main.c -g -O2 -Wall -o main -L. -lmd5 -lcr

But if I leave the “-L.” Option, the linker will not find the dynamic library. How can I change this without having to refer to "-L"?

(additional information libmd5.so and libmd5.so.1.0.1 are in / home / user / ba)

Answer 1

-L , - , , ? :

• /home/user/ba /etc/ld.so.conf( ) ldconfig . .
• LIBRARY_PATH ( ) LD_LIBRARY_PATH ( ). export LD_LIBRARY_PATH=/home/user/ba export LIBRARY_PATH=/home/user/ba. .
• rpath ( -L .). -L /home/user/ba -Wl,-rpath,/home/user/ba . , .
• , /usr/lib. .

- libmd5.so /home/user/ba .

Answer 2

LIBRARY_PATH.

export LIBRARY_PATH=/home/user/ba