output/solaris: include sys/stropts.h only on Solaris

This header had been available for a long time on Linux, but was removed in glibc 2.30. This commit moves the `#include` line inside the `#ifdef __sun` block and adds a fake declaration of `I_FLUSH` for the Linux build. Closes https://github.com/MusicPlayerDaemon/MPD/issues/630

output/solaris: include sys/stropts.h only on Solaris
818b7e06 · Max Kellermann · e70f40fa · 818b7e06
Commit 818b7e06 authored Aug 22, 2019 by Max Kellermann
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SolarisOutputPlugin.cxx src/output/plugins/SolarisOutputPlugin.cxx +7 -1

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--- a/src/output/plugins/SolarisOutputPlugin.cxx
+++ b/src/output/plugins/SolarisOutputPlugin.cxx
@@ -22,7 +22,6 @@
 #include "system/FileDescriptor.hxx"
 #include "system/Error.hxx"

-#include <sys/stropts.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -31,11 +30,18 @@

 #ifdef __sun
 #include <sys/audio.h>
+#include <sys/stropts.h>
 #else

 /* some fake declarations that allow build this plugin on systems
   other than Solaris, just to see if it compiles */

+#include <sys/ioctl.h>
+
+#ifndef I_FLUSH
+#define I_FLUSH 0
+#endif
+
 #define AUDIO_GETINFO 0
 #define AUDIO_SETINFO 0
 #define AUDIO_ENCODING_LINEAR 0