g++ Mac Curl Undefined symbols for architecture x86_64 - c

Question

I'm following an online course related to curl. However, I met some problems.
My building statement is:
gcc -Wall web-server.c -o web-server1 -lcurl
This is the code in web-server.c
#include <stdio.h>
#include <stdlib.h>
#include <curl/curl.h>
int main(void){
CURL *curl = NULL;
CURLcode res;
curl = curl_easy_init();
curl_easy_setops(curl, CURLOPT_URL, "http://www.google.com");
res = curl_easy_perform(curl);
if (res != CURLE_OK){
print("curl easy perform error res = %d",res);
return 1;
}
curl_easy_cleanup(curl);
return 0;
}
And the error message is:
Undefined symbols for architecture x86_64:
"_curl_easy_setops", referenced from:
_main in web-server-afa9ad.o
"_print", referenced from:
_main in web-server-afa9ad.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Thank you guys so much
My operating system is MacOs 10.14.6
My gcc's version
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Target: x86_64-apple-darwin18.7.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
Found CUDA installation: /usr/local/cuda, version unknown
Detailed error message
"/Library/Developer/CommandLineTools/usr/bin/ld" -demangle -lto_library
/Library/Developer/CommandLineTools/usr/lib/libLTO.dylib -no_deduplicate -
dynamic -arch x86_64 -macosx_version_min 10.14.0 -o web-server
/var/folders/j2/jrqt57vj73s0jc8mjc2mddf40000gn/T/web-server-14b13c.o -lcurl
-lSystem
/Library/Developer/CommandLineTools/usr/lib/clang/10.0.1/lib/darwin/libclan
g_rt.osx.a