rgtc: fix void pointer arith.

should fix scons build.

diff --git a/src/mesa/main/texcompress_rgtc.c b/src/mesa/main/texcompress_rgtc.c
index b7725f4a98fa9e3f23c80444ac0a0958efbb35e8..1a01755f14d5f5b2262544512f1d5bae37167069 100644 (file)
--- a/src/mesa/main/texcompress_rgtc.c
+++ b/src/mesa/main/texcompress_rgtc.c
@@ -88,7 +88,7 @@ _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
    const GLchan *tempImage = NULL;
    int i, j;
    int numxpixels, numypixels;
-   const void *srcaddr;
+   const GLchan *srcaddr;
    GLubyte srcpixels[4][4];
    GLubyte *blkaddr;
    GLint dstRowDiff;
@@ -197,7 +197,7 @@ _mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
    const GLchan *tempImage = NULL;
    int i, j;
    int numxpixels, numypixels;
-   const void *srcaddr;
+   const GLchan *srcaddr;
    GLubyte srcpixels[4][4];
    GLubyte *blkaddr;
    GLint dstRowDiff;