glsl: new MESA_GLSL env var for GLSL debugging features

Replaces the VERBOSE_GLSL, VERBOSE_GLSL_DUMP flags which only worked in debug
builds.  MESA_GLSL will work both in debug and non-debug builds.
Also add facility to dump glUniform() calls to stdout.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c
index 40460e0c7e..cfed977905 100644
--- a/src/mesa/shader/slang/slang_compile.c
+++ b/src/mesa/shader/slang/slang_compile.c
@@ -2796,9 +2796,9 @@ _slang_compile(GLcontext *ctx, struct gl_shader *shader)
 
    shader->CompileStatus = success;
 
-#if 0
-   _mesa_write_shader_to_file(shader);
-#endif
+   if (ctx->Shader.Flags & GLSL_LOG) {
+      _mesa_write_shader_to_file(shader);
+   }
 
    return success;
 }