chCUDA: fix compile error on current glibc

tycho · tycho · commit 13889d440948 · 2025-08-20T05:24:06.000Z
Signed-off-by: Steven Noonan &lt;steven@uplinklabs.net&gt;
diff --git a/src/chCUDA.h b/src/chCUDA.h
@@ -51,10 +51,16 @@
 
 #else
 
+// HACK: prevent glibc from redefining rsqrtf -- we want to use ours because it
+// will inline and auto-vectorize properly.
+#define rsqrtf rsqrtf_disabled
+
 #include <stddef.h>
 #include <math.h>
 #include <memory.h>
 
+#undef rsqrtf
+
 #define __global__
 #define __host__
 #define __device__
