4 files changed, 22 insertions, 15 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 4ed179a834c..e2c91c3e400 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1829,7 +1829,7 @@ _mesa_valid_to_render(struct gl_context *ctx, const char *where)
 #ifdef DEBUG
    if (ctx->Shader.Flags & GLSL_LOG) {
       struct gl_shader_program *shProg[MESA_SHADER_TYPES];
-      unsigned i;
+      gl_shader_type i;
 
       shProg[MESA_SHADER_VERTEX] = ctx->Shader.CurrentVertexProgram;
       shProg[MESA_SHADER_GEOMETRY] = ctx->Shader.CurrentGeometryProgram;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 87b96489dbf..80c20e09d9a 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -41,14 +41,6 @@
 #include "math/m_matrix.h"	/* GLmatrix */
 #include "main/simple_list.h"	/* struct simple_node */
 
-/* Shader stages. Note that these will become 5 with tessellation.
- * These MUST have the same values as PIPE_SHADER_*
- */
-#define MESA_SHADER_VERTEX   0
-#define MESA_SHADER_FRAGMENT 1
-#define MESA_SHADER_GEOMETRY 2
-#define MESA_SHADER_TYPES    3
-
 
 /**
  * Color channel data type.
@@ -130,6 +122,20 @@ struct st_context;
 
 
 /**
+ * Shader stages. Note that these will become 5 with tessellation.
+ * These MUST have the same values as gallium's PIPE_SHADER_*
+ */
+typedef enum
+{
+   MESA_SHADER_VERTEX = 0,
+   MESA_SHADER_FRAGMENT = 1,
+   MESA_SHADER_GEOMETRY = 2,
+   MESA_SHADER_TYPES = 3
+} gl_shader_type;
+
+
+
+/**
  * Indexes for vertex program attributes.
  * GL_NV_vertex_program aliases generic attributes over the conventional
  * attributes.  In GL_ARB_vertex_program shader the aliasing is optional.
diff --git a/src/mesa/main/shaderobj.c b/src/mesa/main/shaderobj.c
index b6594cbe6f0..216bbce0032 100644
--- a/src/mesa/main/shaderobj.c
+++ b/src/mesa/main/shaderobj.c
@@ -291,6 +291,7 @@ _mesa_free_shader_program_data(struct gl_context *ctx,
                                struct gl_shader_program *shProg)
 {
    GLuint i;
+   gl_shader_type sh;
 
    assert(shProg->Type == GL_SHADER_PROGRAM_MESA);
 
@@ -326,10 +327,10 @@ _mesa_free_shader_program_data(struct gl_context *ctx,
    shProg->TransformFeedback.NumVarying = 0;
 
 
-   for (i = 0; i < MESA_SHADER_TYPES; i++) {
-      if (shProg->_LinkedShaders[i] != NULL) {
-	 ctx->Driver.DeleteShader(ctx, shProg->_LinkedShaders[i]);
-	 shProg->_LinkedShaders[i] = NULL;
+   for (sh = 0; sh < MESA_SHADER_TYPES; sh++) {
+      if (shProg->_LinkedShaders[sh] != NULL) {
+	 ctx->Driver.DeleteShader(ctx, shProg->_LinkedShaders[sh]);
+	 shProg->_LinkedShaders[sh] = NULL;
       }
    }
 }
diff --git a/src/mesa/main/shaderobj.h b/src/mesa/main/shaderobj.h
index 346a5b75175..de7c998cf0e 100644
--- a/src/mesa/main/shaderobj.h
+++ b/src/mesa/main/shaderobj.h
@@ -98,7 +98,7 @@ extern void
 _mesa_free_shader_state(struct gl_context *ctx);
 
 
-static INLINE GLuint
+static INLINE gl_shader_type
 _mesa_shader_type_to_index(GLenum v)
 {
    switch (v) {
@@ -110,7 +110,7 @@ _mesa_shader_type_to_index(GLenum v)
       return MESA_SHADER_GEOMETRY;
    default:
       ASSERT(0 && "bad value in _mesa_shader_type_to_index()");
-      return ~0;
+      return MESA_SHADER_TYPES;
    }
 }