Libevent 2.0.22项目编译问题(OSX)
问题描述:
我想编译上面的示例代码,但出现以下错误。 它是什么原因。 “OSX - 在/ usr /本地” 下的所有文件安装Libevent 2.0.22项目编译问题(OSX)
// libevent2 library
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <evhttp.h>
#include <event2/event.h>
#include <event2/http.h>
#include <event2/bufferevent.h>
void generic_handler(struct evhttp_request *req, void *arg) {
struct evbuffer *buffer;
buffer = evbuffer_new();
if (buffer == NULL) {
err(1, "failed to create response buffer");
}
evbuffer_add_printf(buffer, "Requested: %sn", evhttp_request_uri(req));
evhttp_send_reply(req, HTTP_OK, "OK", buffer);
}
int main(int argc, char **argv) {
struct evhttp *httpd;
event_init();
httpd = evhttp_start("0.0.0.0", 8080);
// Set a callback for requests to "/specific".
// evhttp_set_cb(httpd, "/specific", another_handler, NULL);
// Set a callback for all other requests.
evhttp_set_gencb(httpd, generic_handler, NULL);
// Not reached in this code as it is now.
event_dispatch();
evhttp_free(httpd);
return 0;
}
错误:
/Users/batuhangoksu/Desktop/test.c:14:10: fatal error: 'evhttp.h' file not found
#include <evhttp.h>
^
1 error generated.
命令:
gcc -o octopus /Users/batuhangoksu/Desktop/test.c -levent -lpthread
答
首先,请找到文件的evhttp.h
的path
。
然后,您可以检查此path
在#include
文件搜索路径由命令
gcc -o octopus /Users/batuhangoksu/Desktop/test.c -levent -lpthread -v
输出是这样的,
#include "..." search starts here:
#include <...> search starts here:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.1.0/include
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include
/usr/include
/System/Library/Frameworks (framework directory)
/Library/Frameworks (framework directory)
如果path
不在搜索列表,然后将-I /missed_include
(假设它是path
)加到您的命令中,如
gcc -o octopus /Users/batuhangoksu/Desktop/test.c -levent -lpthread -I/missed_include