emulator/opengl: Fix misc. compiler warnings.

These warnings appear when building the sources through the emulator's
standalone build system, not the platform one.

Change-Id: Ib5d51cf6211f32763be00c7436ae14c06f76b436

3 files changed, 1 insertions, 4 deletions

diff --git a/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp b/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp
index db7f418..59f7b97 100644
--- a/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp
+++ b/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp
@@ -258,7 +258,7 @@ GLenum GLSharedGroup::subUpdateBufferData(GLuint bufferId, GLintptr offset, GLsi
 void GLSharedGroup::deleteBufferData(GLuint bufferId)
 {
     emugl::Mutex::AutoLock _lock(m_lock);
-    ssize_t idx = m_buffers.remove(bufferId);
+    (void) m_buffers.remove(bufferId);
 }
 
 void GLSharedGroup::addProgramData(GLuint program)
diff --git a/emulator/opengl/shared/OpenglCodecCommon/SocketStream.cpp b/emulator/opengl/shared/OpenglCodecCommon/SocketStream.cpp
index 3ef4c6f..726d359 100644
--- a/emulator/opengl/shared/OpenglCodecCommon/SocketStream.cpp
+++ b/emulator/opengl/shared/OpenglCodecCommon/SocketStream.cpp
@@ -112,7 +112,6 @@ int SocketStream::writeFully(const void* buffer, size_t size)
 
 const unsigned char *SocketStream::readFully(void *buf, size_t len)
 {
-    const unsigned char* ret = NULL;
     if (!valid()) return NULL;
     if (!buf) {
       return NULL;  // do not allow NULL buf in that implementation
diff --git a/emulator/opengl/shared/OpenglCodecCommon/Win32PipeStream.cpp b/emulator/opengl/shared/OpenglCodecCommon/Win32PipeStream.cpp
index 76907a0..dcfb0c0 100644
--- a/emulator/opengl/shared/OpenglCodecCommon/Win32PipeStream.cpp
+++ b/emulator/opengl/shared/OpenglCodecCommon/Win32PipeStream.cpp
@@ -193,8 +193,6 @@ int Win32PipeStream::commitBuffer(size_t size)
 
 const unsigned char *Win32PipeStream::readFully(void *buf, size_t len)
 {
-    const unsigned char* ret = NULL;
-
     if (m_pipe == INVALID_HANDLE_VALUE)
         return NULL;