c++ - 无法在 qt creator (linux) 上链接共享库

Question

这是我的 .pro 文件:

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

DEPENDPATH += /home/khajak/CList/linker
INCLUDEPATH += /home/khajak/CList/linker

LIBS += -L/home/khajak/CList/linker -llibCListManager
LIBS += -L/home/khajak/CList/linker -llibCommandLineEngine

这里是 /home/khajak/CList/linker 目录:

lrwxrwxrwx 1 khajak khajak     24 Mar 30 23:10 libCListManager.so -> libCListManager.so.1.0.0
lrwxrwxrwx 1 khajak khajak     24 Mar 30 23:10 libCListManager.so.1 -> libCListManager.so.1.0.0
lrwxrwxrwx 1 khajak khajak     24 Mar 30 23:10 libCListManager.so.1.0 -> libCListManager.so.1.0.0
-rwxrwxr-x 1 khajak khajak 344109 Mar 30 22:37 libCListManager.so.1.0.0
lrwxrwxrwx 1 khajak khajak     29 Mar 30 23:10 libCommandLineEngine.so -> libCommandLineEngine.so.1.0.0
lrwxrwxrwx 1 khajak khajak     29 Mar 30 23:10 libCommandLineEngine.so.1 -> libCommandLineEngine.so.1.0.0
lrwxrwxrwx 1 khajak khajak     29 Mar 30 23:10 libCommandLineEngine.so.1.0 -> libCommandLineEngine.so.1.0.0
-rwxrwxr-x 1 khajak khajak 207537 Mar 30 18:24 libCommandLineEngine.so.1.0.0
-rw-rw-r-- 1 khajak khajak    285 Mar 30 23:15 linker.pro

Qtcreator 抛出错误:

:-1: error: cannot find -llibCListManager
:-1: error: cannot find -llibCommandLineEngine

Answer 1

引用 man ld

  -l namespec
  --library=namespec<br>

Add the archive or object file specified by namespec to the list of files to link. This option may be used any number of times. If namespec is of the form :filename, ld will search the library path for a file called filename, otherwise it will search the library path for a file called libnamespec.a.

On systems which support shared libraries, ld may also search for files other than libnamespec.a. Specifically, on ELF and SunOS systems, ld will search a directory for a library called libnamespec.so before searching for one called libnamespec.a. (By convention, a ".so" extension indicates a shared library.) Note that this behavior does not apply to :filename, which always specifies a file called filename.

因此，-llibCListManager 意味着您要链接名为 liblibCListManager.so 的库。对于 libCListManager.so，正确的选项是 -lCListManager。