glx: Suppress unused variable warning for cmdlen

No functional change.  In the function
__indirect_glAreTexturesResident(), the variable cmdlen is only used
if USE_XCB is not defined.  This patch avoids a compile warning in the
event that USE_XCB is defined.

v2: just move cmdlen declaration inside the #else part.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/glx/single2.c b/src/glx/single2.c
index 66281fa..259c4fe 100644 (file)
--- a/src/glx/single2.c
+++ b/src/glx/single2.c
@@ -887,7 +887,6 @@ __indirect_glAreTexturesResident(GLsizei n, const GLuint * textures,
    struct glx_context *const gc = __glXGetCurrentContext();
    Display *const dpy = gc->currentDpy;
    GLboolean retval = (GLboolean) 0;
-   const GLuint cmdlen = 4 + __GLX_PAD((n * 4));
    if (__builtin_expect((n >= 0) && (dpy != NULL), 1)) {
 #ifdef USE_XCB
       xcb_connection_t *c = XGetXCBConnection(dpy);
@@ -903,6 +902,7 @@ __indirect_glAreTexturesResident(GLsizei n, const GLuint * textures,
       retval = reply->ret_val;
       free(reply);
 #else
+      const GLuint cmdlen = 4 + __GLX_PAD((n * 4));
       GLubyte const *pc =
          __glXSetupSingleRequest(gc, X_GLsop_AreTexturesResident, cmdlen);
       (void) memcpy((void *) (pc + 0), (void *) (&n), 4);