我正在尝试使用自己的“API”编译程序。假设我的项目结构是：
main.cc
...
api/
include/
*.h
lib/
libsdl2ecs.a
我知道编译器（或者至少是gcc和clang）可以选择将目录添加到include和lib路径（-I和-L），所以我用来编译的命令是：
clang++ -std=c++11 -Iapi/include -Lapi/lib -Wall -o main main.cc -lSDL2 -lSDL2_image -lsdl2ecs
它不起作用：输出太可怕了，不能把它放在这里。事情是，这不是我的问题，因为如果我删除-Iapi / include选项并在.cc文件中写入整个路径，它可以完美地工作。
我想知道我是否遗漏了什么。
提前致谢！
编辑：错误消息
clang++ -std=c++11 -Iapi/include/ -Lapi/lib/ -Wall -o main main.cc -lSDL2 -lSDL2_image -lsdl2ecs
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:5:
api/include/system.h:15:9: error: implicit instantiation of undefined template 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >'
string failureDetail;
^
/usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/stringfwd.h:71:11: note: template is declared here
class basic_string;
^
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:6:
In file included from api/include/game.h:6:
In file included from api/include/entity.h:4:
api/include/component.h:24:9: error: implicit instantiation of undefined template 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >'
string failureDetail;
^
/usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/stringfwd.h:71:11: note: template is declared here
class basic_string;
^
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:6:
In file included from api/include/game.h:6:
In file included from api/include/entity.h:4:
api/include/component.h:70:6: error: member access into incomplete type 'Game'
game->Instantiate<T>();
^
api/include/system.h:4:7: note: forward declaration of 'Game'
class Game;
^
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:6:
In file included from api/include/game.h:6:
In file included from api/include/entity.h:4:
api/include/component.h:77:15: error: member access into incomplete type 'Entity'
return entity->AddComponent<T>();
^
api/include/component.h:13:7: note: forward declaration of 'Entity'
class Entity;
^
api/include/component.h:84:15: error: member access into incomplete type 'Entity'
return entity->GetComponent<Derived>();
^
api/include/component.h:13:7: note: forward declaration of 'Entity'
class Entity;
^
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:6:
In file included from api/include/game.h:6:
In file included from api/include/entity.h:6:
In file included from api/include/texture.h:8:
In file included from api/include/renderer.h:6:
api/include/display.h:14:9: error: implicit instantiation of undefined template 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >'
string title;
^
/usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/stringfwd.h:71:11: note: template is declared here
class basic_string;
^
In file included from main.cc:1:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/iostream:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ostream:38:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ios:42:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/ios_base.h:39:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/ext/atomicity.h:35:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr.h:148:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/x86_64-redhat-linux/bits/gthr-default.h:35:
In file included from /usr/include/pthread.h:23:
In file included from /usr/include/sched.h:34:
In file included from api/include/time.h:6:
In file included from api/include/game.h:6:
In file included from api/include/entity.h:6:
api/include/texture.h:18:9: error: implicit instantiation of undefined template 'std::basic_string<char, std::char_traits<char>, std::allocator<char> >'
string path;
^
/usr/bin/../lib/gcc/x86_64-redhat-linux/5.1.1/../../../../include/c++/5.1.1/bits/stringfwd.h:71:11: note: template is declared here
class basic_string;
^
In file included from main.cc:4:
In file included from ./prefabs.hh:2:
./ccomponents.hh:20:36: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
Transform &transform = GetTransform();
^~~~~~~~~~~~
./ccomponents.hh:22:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
if (GetKeyPressed(SDLK_d))
^~~~~~~~~~~~~
./ccomponents.hh:25:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
if (GetKeyPressed(SDLK_w))
^~~~~~~~~~~~~
./ccomponents.hh:28:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
if (GetKeyPressed(SDLK_a))
^~~~~~~~~~~~~
./ccomponents.hh:31:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
if (GetKeyPressed(SDLK_s))
^~~~~~~~~~~~~
./ccomponents.hh:34:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'WASDController'
if (GetKeyDown(SDLK_v))
^~~~~~~~~~
./ccomponents.hh:44:36: error: cannot initialize object parameter of type 'Component' with an expression of type 'Zoomer'
Transform &transform = GetTransform();
^~~~~~~~~~~~
./ccomponents.hh:46:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'Zoomer'
if (GetKeyPressed(SDLK_x)) {
^~~~~~~~~~~~~
./ccomponents.hh:51:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'Zoomer'
if (GetKeyPressed(SDLK_z)) {
^~~~~~~~~~~~~
./ccomponents.hh:63:36: error: cannot initialize object parameter of type 'Component' with an expression of type 'Rotator'
Transform &transform = GetTransform();
^~~~~~~~~~~~
./ccomponents.hh:65:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'Rotator'
if (GetKeyPressed(SDLK_e))
^~~~~~~~~~~~~
./ccomponents.hh:68:17: error: cannot initialize object parameter of type 'Component' with an expression of type 'Rotator'
if (GetKeyPressed(SDLK_q))
^~~~~~~~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
Makefile:11: recipe for target 'main' failed
make: *** [main] Error 1