use HAVE_* macros for dependencies

engine/audio/private/voice_record_openal.cpp

@@ -7,6 +7,7 @@
 //=============================================================================//
 // This module implements the voice record and compression functions 
 
+#if HAVE_OPENAL
 //#include "audio_pch.h"
 //#include "voice.h"
 #include "tier0/platform.h"
@@ -207,3 +208,5 @@ IVoiceRecord* CreateVoiceRecord_OpenAL(int sampleRate)
 	}
 }
 #endif
+
+#endif

engine/downloadthread.cpp

@@ -522,7 +522,7 @@ DWORD __stdcall DownloadThread( void *voidPtr )
 }
 
 
-#elif defined( POSIX )
+#elif defined( POSIX ) && HAVE_CURL
 
 #include "curl/curl.h"
 

engine/sv_log.cpp

@@ -713,6 +713,7 @@ static bool CreateTempFilename( TempFilename_t &info, const char *filenameBase,
 // Gzip Filename to Filename.gz.
 static bool gzip_file_compress( const CUtlString &Filename )
 {
+#if HAVE_ZLIB
 	bool bRet = false;
 
 	// Try to find a unique temp filename.
@@ -758,6 +759,9 @@ static bool gzip_file_compress( const CUtlString &Filename )
 	}
 
 	return bRet;
+#else
+	return false;
+#endif
 }
 
 static void FixupInvalidPathChars( char *filename )

engine/sys_getmodes.cpp

@@ -1932,7 +1932,9 @@ static void VID_ProcessMovieFrame( const MovieInfo_t& info, bool jpeg, const cha
     bool bSuccess = false;
     if ( jpeg )
     {
+#if HAVE_JPEG
         bSuccess = videomode->TakeSnapshotJPEGToBuffer( outBuf, info.jpeg_quality );
+#endif
     }
     else
     {
@@ -2001,6 +2003,7 @@ void CVideoMode_Common::WriteMovieFrame( const MovieInfo_t& info )
     delete[] hp;
 }
 
+#if HAVE_JPEG
 //-----------------------------------------------------------------------------
 // Purpose: Expanded data destination object for CUtlBuffer output
 //-----------------------------------------------------------------------------
@@ -2099,10 +2102,11 @@ GLOBAL(void) jpeg_UtlBuffer_dest (j_compress_ptr cinfo, CUtlBuffer *pBuffer )
     dest->pub.term_destination      = term_destination;
     dest->pBuffer                   = pBuffer;
 }
+#endif
 
 bool CVideoMode_Common::TakeSnapshotJPEGToBuffer( CUtlBuffer& buf, int quality )
 {
-#if !defined( _X360 )
+#if !defined( _X360 ) && HAVE_JPEG
     if ( g_LostVideoMemory )
         return false;