Re: Issue with dllexport/dllimport inline function

[LIU Hao via Gcc]

在 2022/10/12 02:37, xclae...@gmail.com 写道:

Build it with:
   meson setup builddir --cross-file cross_file_mingw64.txt
   ninja -C builddir/

And it fails with:

That's because you compiled it as C. I used g++ to compile these, and there was 
no such error.




   ```
   #ifndef INSIDE_FOO_C
   __attribute__((__dllexport__)) inline
   #endif
   extern
   int
   g_strcmp0(const char*str1, const char*str2)
     ...
   ```

and in 'foo.c':

   ```
   #define INSIDE_FOO_C  1
   #include "foo.h"

   extern int g_strcmp0 (const char *str1, const char *str2);
   ```


Further reading:
  
https://github.com/lhmouse/mcfgthread/wiki/Differences-between-GNU,-C99-and-C---%60inline%60


--
Best regards,
LIU Hao

For C, this inline issue is going to be much more messy due to lack of COMDAT support about `inline`. Your will need a dedicated macro for each translation unit. A dirty solution looks like this:

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