I want to get the libraries paths of system installed libpcap with gcc, so I can copy it to another machine to cross compile my program that use libpcap.
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write an empty c source file into /tmp/1.c
int main(){} run the command line
gcc -Wl,-t -lpcap /tmp/1.c You will see a line looks like following in ubuntu 2004
/usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libpcap.so or a line looks like following in mac os
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/lib/libpcap.tbd Ps1, when you use libpcap-dev in ubuntu 2004, you need two kind of files to make the compile works:
/usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/libpcap.so /usr/include/pcap.h Ps2, if you want to know where the .h file is location, see https://stackoverflow.com/a/18593344/1586797