SL-10368

Fix OSX shader compile bug from use of #if FOO instead of #ifdef FOO or #if defined(FOO)
preventing atmospherics (and thus ALM) from working on OSX.

27 files changed, 71 insertions, 57 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl
index 3f90600ace..0fa0edfd67 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/attachmentShadowV.glsl
@@ -41,7 +41,7 @@ void main()
 	
 
 	vec4 p = projection_matrix * vec4(pos, 1.0);
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	p.z = max(p.z, -p.w+0.01);
 	gl_Position = p;
 #else
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
index 8e46425ea8..50020a50d8 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -41,7 +41,7 @@ void main()
 {
 	frag_color = vec4(1,1,1,1);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
 #endif
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowV.glsl
index bde1ad4e9f..91b25613e0 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec3 normal;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -53,7 +53,7 @@ void main()
 	norm = normalize(norm);
 	
 	pos = projection_matrix * pos;
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	post_pos = pos;
 
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cloudShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/cloudShadowF.glsl
index fa6926b007..d93baa03c6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/cloudShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/cloudShadowF.glsl
@@ -55,7 +55,7 @@ uniform vec3 sun_dir;
 uniform float sun_size;
 uniform float far_z;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -114,7 +114,7 @@ void main()
 
     frag_color = vec4(alpha1, alpha1, alpha1, 1);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
 #endif
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cloudShadowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/cloudShadowV.glsl
index cb27b2c2c5..effb070f93 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/cloudShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/cloudShadowV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -49,7 +49,7 @@ void main()
 	pos = modelview_projection_matrix * pre_pos;
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
 #else
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendF.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendF.glsl
index 12bc690553..44f2a73e1f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -49,7 +49,7 @@ void main()
 
 	frag_color = vec4(alpha, alpha, alpha, 1);
 	
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(pos_zd2/pos_w+0.5, 0.0);
 #endif
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendV.glsl
index 11411a605c..f45c343066 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaBlendV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -52,7 +52,7 @@ void main()
 
 	pos_w = pos.w;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
index ae1b19a35c..1791d3e315 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -62,7 +62,7 @@ void main()
 
 	frag_color = vec4(1,1,1,1);
 	
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(pos_zd2/pos_w+0.5, 0.0);
 #endif
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
index 11411a605c..f45c343066 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -52,7 +52,7 @@ void main()
 
 	pos_w = pos.w;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowCubeV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowCubeV.glsl
index ef153dfc5b..0e74d2eb8a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowCubeV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowCubeV.glsl
@@ -27,7 +27,7 @@ uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -40,7 +40,7 @@ void main()
 	vec3 p = position*box_size+box_center;
 	vec4 pos = modelview_projection_matrix*vec4(p.xyz, 1.0);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	post_pos = pos;
 
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowF.glsl
index 242aef821d..22d42d38c1 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowF.glsl
@@ -31,7 +31,7 @@ out vec4 frag_color;
 #define frag_color gl_FragColor
 #endif
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -39,7 +39,7 @@ void main()
 {
 	frag_color = vec4(1,1,1,1);
 	
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
 #endif
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowV.glsl
index cc77a4cea0..41a89fb8b4 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowV.glsl
@@ -27,7 +27,7 @@ uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -36,7 +36,7 @@ void main()
 	//transform vertex
 	vec4 pos = modelview_projection_matrix*vec4(position.xyz, 1.0);
 	
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	post_pos = pos;
 
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl
index fa6926b007..d93baa03c6 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl
@@ -55,7 +55,7 @@ uniform vec3 sun_dir;
 uniform float sun_size;
 uniform float far_z;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -114,7 +114,7 @@ void main()
 
     frag_color = vec4(alpha1, alpha1, alpha1, 1);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
 #endif
 
diff --git a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl
index 52164e7b80..1c2fbaf25d 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -48,7 +48,7 @@ void main()
 	pos = modelview_projection_matrix * pre_pos;
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
 #else
diff --git a/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl
index 3be9cb3de8..1a655e6467 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl
@@ -42,10 +42,8 @@ void main()
 	pos = (mat*vec4(position.xyz, 1.0));
 	pos = projection_matrix * vec4(pos.xyz, 1.0);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos.z = max(pos.z, -pos.w+0.01);
-	gl_Position = pos;
-#else
-	gl_Position = pos;
 #endif
+	gl_Position = pos;
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl
index f4e5a61e36..48eefc7a73 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -45,7 +45,7 @@ void main()
 {
     frag_color = computeMoments(length(pos), 1.0);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
 #endif
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl
index 96ca2fd707..164b355f20 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec3 normal;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -56,7 +56,7 @@ void main()
 	
 	pos = projection_matrix * pos;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	post_pos = pos;
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
 #else
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl
index cb27b2c2c5..effb070f93 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -49,7 +49,7 @@ void main()
 	pos = modelview_projection_matrix * pre_pos;
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
 #else
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendF.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendF.glsl
index 01599d81c4..345c07a354 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -52,7 +52,7 @@ void main()
 
     frag_color = computeMoments(length(pos), float a);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(pos_zd2/pos_w+0.5, 0.0);
 #endif
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendV.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendV.glsl
index 3fb2bafca4..af1461c297 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaBlendV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -51,7 +51,7 @@ void main()
 
 	pos_w = pos.w;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskF.glsl
index d6ed5b6bb0..50f1ffd626 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -67,7 +67,7 @@ void main()
 
     frag_color = computeMoments(length(pos.xyz), alpha);
     
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
     gl_FragDepth = max(pos_zd2/pos_w+0.5, 0.0);
 #endif
 
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskV.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskV.glsl
index bc7fe003f2..6a646f5e9e 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowAlphaMaskV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec3 position;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -51,7 +51,7 @@ void main()
 
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowCubeV.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowCubeV.glsl
index 923de09ada..db8c75fb8a 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowCubeV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowCubeV.glsl
@@ -27,7 +27,7 @@ uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING vec4 post_pos;
 #endif
 
@@ -40,7 +40,7 @@ void main()
 	vec3 p = position*box_size+box_center;
 	vec4 pos = modelview_projection_matrix*vec4(p.xyz, 1.0);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	post_pos = pos;
 
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowF.glsl
index 5a6c8728c0..3350267130 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowF.glsl
@@ -33,7 +33,7 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseMap;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
diff --git a/indra/newview/app_settings/shaders/class3/deferred/shadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/shadowV.glsl
index 9a5edaf091..6577fe0ecf 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/shadowV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/shadowV.glsl
@@ -30,7 +30,7 @@ uniform mat4 texture_matrix0;
 ATTRIBUTE vec3 position;
 ATTRIBUTE vec2 texcoord0;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 VARYING float pos_zd2;
 #endif
 
@@ -50,7 +50,7 @@ void main()
 
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	pos_zd2 = pos.z * 0.5;
 	
 	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
diff --git a/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl
index 693af31bf2..41673d1669 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl
@@ -51,7 +51,7 @@ void main()
 
     frag_color = computeMoments(length(pos), 1.0);
 
-#if !DEPTH_CLAMP
+#if !defined(DEPTH_CLAMP)
 	gl_FragDepth = max(pos.z/pos.w*0.5+0.5, 0.0);
 #endif
 
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 000d67a4e2..1686aeea4f 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -2142,7 +2142,10 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredShadowProgram.mShaderFiles.push_back(make_pair("deferred/shadowV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredShadowProgram.mShaderFiles.push_back(make_pair("deferred/shadowF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredShadowProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
-		gDeferredShadowProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
+        if (gGLManager.mHasDepthClamp)
+        {
+		    gDeferredShadowProgram.addPermutation("DEPTH_CLAMP", "1");
+        }
 		success = gDeferredShadowProgram.createShader(NULL, NULL);
         llassert(success);
 	}
@@ -2155,7 +2158,10 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredShadowCubeProgram.mShaderFiles.clear();
 		gDeferredShadowCubeProgram.mShaderFiles.push_back(make_pair("deferred/shadowCubeV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredShadowCubeProgram.mShaderFiles.push_back(make_pair("deferred/shadowF.glsl", GL_FRAGMENT_SHADER_ARB));
-		gDeferredShadowCubeProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
+        if (gGLManager.mHasDepthClamp)
+        {
+		    gDeferredShadowCubeProgram.addPermutation("DEPTH_CLAMP", "1");
+        }
 		gDeferredShadowCubeProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
 		success = gDeferredShadowCubeProgram.createShader(NULL, NULL);
         llassert(success);
@@ -2170,7 +2176,10 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredShadowAlphaMaskProgram.mShaderFiles.clear();
 		gDeferredShadowAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/shadowAlphaMaskV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredShadowAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/shadowAlphaMaskF.glsl", GL_FRAGMENT_SHADER_ARB));
-		gDeferredShadowAlphaMaskProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
+        if (gGLManager.mHasDepthClamp)
+        {
+		    gDeferredShadowAlphaMaskProgram.addPermutation("DEPTH_CLAMP", "1");
+        }
 		gDeferredShadowAlphaMaskProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
 		success = gDeferredShadowAlphaMaskProgram.createShader(NULL, NULL);
         llassert(success);
@@ -2185,7 +2194,10 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAvatarShadowProgram.mShaderFiles.clear();
 		gDeferredAvatarShadowProgram.mShaderFiles.push_back(make_pair("deferred/avatarShadowV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredAvatarShadowProgram.mShaderFiles.push_back(make_pair("deferred/avatarShadowF.glsl", GL_FRAGMENT_SHADER_ARB));
-		gDeferredAvatarShadowProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
+        if (gGLManager.mHasDepthClamp)
+        {
+		    gDeferredAvatarShadowProgram.addPermutation("DEPTH_CLAMP", "1");
+        }
 		gDeferredAvatarShadowProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
 		success = gDeferredAvatarShadowProgram.createShader(NULL, NULL);
         llassert(success);
@@ -2200,7 +2212,10 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAttachmentShadowProgram.mShaderFiles.clear();
 		gDeferredAttachmentShadowProgram.mShaderFiles.push_back(make_pair("deferred/attachmentShadowV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredAttachmentShadowProgram.mShaderFiles.push_back(make_pair("deferred/attachmentShadowF.glsl", GL_FRAGMENT_SHADER_ARB));
-		gDeferredAttachmentShadowProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
+        if (gGLManager.mHasDepthClamp)
+        {
+		    gDeferredAttachmentShadowProgram.addPermutation("DEPTH_CLAMP", "1");
+        }
 		gDeferredAttachmentShadowProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
 		success = gDeferredAttachmentShadowProgram.createShader(NULL, NULL);
         llassert(success);
@@ -3862,6 +3877,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
 		success = gWLCloudProgram.createShader(NULL, NULL);
 	}
 
+    /* unused outside of ALM at the moment and failing to link on OSX for reasons only Timmy knows.
     if (success)
 	{
 		gWLCloudShadowProgram.mName = "Windlight Cloud Shadow Program";
@@ -3874,7 +3890,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
 		gWLCloudShadowProgram.mShaderLevel = mShaderLevel[SHADER_WINDLIGHT];
 		gWLCloudShadowProgram.mShaderGroup = LLGLSLShader::SG_SKY;
 		success = gWLCloudShadowProgram.createShader(NULL, NULL);
-	}
+	}*/
 
     if (success)
 	{