diff --git a/libraries/entities/src/ParticleEffectEntityItem.cpp b/libraries/entities/src/ParticleEffectEntityItem.cpp
index 4dfc9dd436..dc5bbb85ed 100644
--- a/libraries/entities/src/ParticleEffectEntityItem.cpp
+++ b/libraries/entities/src/ParticleEffectEntityItem.cpp
@@ -155,9 +155,9 @@ void ParticleEffectEntityItem::computeAndUpdateDimensions() {
     float yMin = std::min(yApex, yEnd);
 
     // times 2 because dimensions are diameters not radii.
-    glm::vec3 dims(2.0f * std::max(fabs(xMin), fabs(xMax)),
-                   2.0f * std::max(fabs(yMin), fabs(yMax)),
-                   2.0f * std::max(fabs(zMin), fabs(zMax)));
+    glm::vec3 dims(2.0f * std::max(fabsf(xMin), fabsf(xMax)),
+                   2.0f * std::max(fabsf(yMin), fabsf(yMax)),
+                   2.0f * std::max(fabsf(zMin), fabsf(zMax)));
 
     EntityItem::setDimensions(dims);
 }
diff --git a/libraries/gpu/src/gpu/Batch.cpp b/libraries/gpu/src/gpu/Batch.cpp
index a10f5b3de7..0347536808 100644
--- a/libraries/gpu/src/gpu/Batch.cpp
+++ b/libraries/gpu/src/gpu/Batch.cpp
@@ -8,6 +8,8 @@
 //  Distributed under the Apache License, Version 2.0.
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
+#include <string.h>
+
 #include "Batch.h"
 
 #if defined(NSIGHT_FOUND)
diff --git a/libraries/gpu/src/gpu/GLBackendShader.cpp b/libraries/gpu/src/gpu/GLBackendShader.cpp
index dccd035cb4..5fa0e277e5 100755
--- a/libraries/gpu/src/gpu/GLBackendShader.cpp
+++ b/libraries/gpu/src/gpu/GLBackendShader.cpp
@@ -639,14 +639,13 @@ int makeUniformBlockSlots(GLuint glprogram, const Shader::BindingSet& slotBindin
         GLchar name[NAME_LENGTH];
         GLint length = 0;
         GLint size = 0;
-        GLenum type = 0;
         GLint binding = -1;
 
         glGetActiveUniformBlockiv(glprogram, i, GL_UNIFORM_BLOCK_NAME_LENGTH, &length);
         glGetActiveUniformBlockName(glprogram, i, NAME_LENGTH, &length, name);
         glGetActiveUniformBlockiv(glprogram, i, GL_UNIFORM_BLOCK_BINDING, &binding);
         glGetActiveUniformBlockiv(glprogram, i, GL_UNIFORM_BLOCK_DATA_SIZE, &size);
-        
+
         GLuint blockIndex = glGetUniformBlockIndex(glprogram, name);
 
         // CHeck if there is a requested binding for this block
diff --git a/libraries/gpu/src/gpu/GLBackendState.cpp b/libraries/gpu/src/gpu/GLBackendState.cpp
index e9dcd3aad3..22c61b2365 100644
--- a/libraries/gpu/src/gpu/GLBackendState.cpp
+++ b/libraries/gpu/src/gpu/GLBackendState.cpp
@@ -482,15 +482,15 @@ void GLBackend::syncPipelineStateCache() {
     State::Data state;
 
     glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
-    
-    // Point size is always on
-    glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
-    glEnable(GL_PROGRAM_POINT_SIZE_EXT);
+
+    // Point size is always on
+    glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
+    glEnable(GL_PROGRAM_POINT_SIZE_EXT);
     glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
 
     getCurrentGLState(state);
     State::Signature signature = State::evalSignature(state);
-    
+
     _pipeline._stateCache = state;
     _pipeline._stateSignatureCache = signature;
 }