gh-91734: Fix ossaudio support on Solaris (GH-91735)

(cherry picked from commit 4420faf)

Co-authored-by: Jakub Kulík <[email protected]>

Author: miss-islington

Misc/NEWS.d/next/Library/2022-04-20-09-49-33.gh-issue-91734.4Dj4Gy.rst

@@ -0,0 +1 @@
+Fix OSS audio support on Solaris.

Modules/ossaudiodev.c

@@ -1243,8 +1243,12 @@ PyInit_ossaudiodev(void)
     _EXPORT_INT(m, SNDCTL_DSP_GETSPDIF);
 #endif
     _EXPORT_INT(m, SNDCTL_DSP_GETTRIGGER);
+#ifdef SNDCTL_DSP_MAPINBUF
     _EXPORT_INT(m, SNDCTL_DSP_MAPINBUF);
+#endif
+#ifdef SNDCTL_DSP_MAPOUTBUF
     _EXPORT_INT(m, SNDCTL_DSP_MAPOUTBUF);
+#endif
     _EXPORT_INT(m, SNDCTL_DSP_NONBLOCK);
     _EXPORT_INT(m, SNDCTL_DSP_POST);
 #ifdef SNDCTL_DSP_PROFILE