在 2022-11-01 23:38, xclaesse@gmail.com 写道: > Thanks a lot for your help. > > Sorry for late reply, but I gave your trick a try and it did not work: > ``` > /home/xclaesse/programmation/inline-example/builddir/../foo.h:7: > multiple definition of `g_strcmp0'; > libfoo.dll.p/foo.c.obj:/home/xclaesse/programmation/inline- > example/builddir/../foo.h:7: first defined here > ``` > Apologies for the typo. The `__dllexport__` in 'foo.h' should have been `__gnu_inline__`. If, for some reason, it needs to be specified explicitly, you may do that in 'foo.c' instead. 'foo.h': ``` #ifndef INSIDE_FOO_C __attribute__((__gnu_inline__)) __inline__ #endif extern int g_strcmp0(const char*str1, const char*str2) { ... ``` 'foo.c': ``` __attribute__((__dllexport__)) /* This is optional. */ extern int g_strcmp0 (const char *str1, const char *str2); ``` -- Best regards, LIU Hao