_dlsym_control_001 undeclared when compiling alsa-lib

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alsa-project/alsa-lib issue #350 was opened from cemkeylan:

Hello, as mentioned I'm getting the above error when compiling alsa-lib. Full error below.

```
In file included from ../../include/local.h:177,
                 from control_local.h:22,
                 from control.c:188:
control.c: In function 'snd_ctl_open_conf':
../../include/global.h:98:36: warning: implicit declaration of function '__STRING' [-Wimplicit-function-declaratio]
   98 | #define SND_DLSYM_VERSION(version) __STRING(version)
      |                                    ^~~~~~~~
control.c:1541:25: note: in expansion of macro 'SND_DLSYM_VERSION'
 1541 |                         SND_DLSYM_VERSION(SND_CONTROL_DLSYM_VERSION), 1);
      |                         ^~~~~~~~~~~~~~~~~
../../include/control.h:43:41: error: '_dlsym_control_001' undeclared (first use in this function)
   43 | #define SND_CONTROL_DLSYM_VERSION       _dlsym_control_001
      |                                         ^~~~~~~~~~~~~~~~~~
../../include/global.h:98:45: note: in definition of macro 'SND_DLSYM_VERSION'
   98 | #define SND_DLSYM_VERSION(version) __STRING(version)
      |                                             ^~~~~~~
control.c:1541:43: note: in expansion of macro 'SND_CONTROL_DLSYM_VERSION'
 1541 |                         SND_DLSYM_VERSION(SND_CONTROL_DLSYM_VERSION), 1);
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
../../include/control.h:43:41: note: each undeclared identifier is reported only once for each function it appears in
   43 | #define SND_CONTROL_DLSYM_VERSION       _dlsym_control_001
      |                                         ^~~~~~~~~~~~~~~~~~
../../include/global.h:98:45: note: in definition of macro 'SND_DLSYM_VERSION'
   98 | #define SND_DLSYM_VERSION(version) __STRING(version)
      |                                             ^~~~~~~
control.c:1541:43: note: in expansion of macro 'SND_CONTROL_DLSYM_VERSION'
 1541 |                         SND_DLSYM_VERSION(SND_CONTROL_DLSYM_VERSION), 1);
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
make: *** [Makefile:415: control.lo] Error 1
```

I have tried to understand the reason this occurs. This doesn't happen when compiling version `1.2.9`, yet I also can't understand how and where the declaration is for that version.

Issue URL     : https://github.com/alsa-project/alsa-lib/issues/350
Repository URL: https://github.com/alsa-project/alsa-lib



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