[libclc] Add some include guards to CLC declarations. NFC

Author: frasercrmck

libclc/clc/include/clc/geometric/clc_dot.h

@@ -1,2 +1,7 @@
+#ifndef __CLC_GEOMETRIC_CLC_DOT_H__
+#define __CLC_GEOMETRIC_CLC_DOT_H__
+
 #define __CLC_BODY <clc/geometric/clc_dot.inc>
 #include <clc/geometric/floatn.inc>
+
+#endif // __CLC_GEOMETRIC_CLC_DOT_H__

libclc/clc/include/clc/shared/clc_clamp.h

@@ -1,3 +1,6 @@
+#ifndef __CLC_SHARED_CLC_CLAMP_H__
+#define __CLC_SHARED_CLC_CLAMP_H__
+
 #if defined(CLC_CLSPV) || defined(CLC_SPIRV)
 // clspv and spir-v targets provide their own OpenCL-compatible clamp
 #define __clc_clamp clamp
@@ -13,3 +16,5 @@
 #include <clc/math/gentype.inc>
 
 #endif
+
+#endif // __CLC_SHARED_CLC_CLAMP_H__

libclc/clc/include/clc/shared/clc_max.h

@@ -1,3 +1,6 @@
+#ifndef __CLC_SHARED_CLC_MAX_H__
+#define __CLC_SHARED_CLC_MAX_H__
+
 #if defined(CLC_CLSPV) || defined(CLC_SPIRV)
 // clspv and spir-v targets provide their own OpenCL-compatible max
 #define __clc_max max
@@ -10,3 +13,5 @@
 #include <clc/math/gentype.inc>
 
 #endif
+
+#endif // __CLC_SHARED_CLC_MAX_H__

libclc/clc/include/clc/shared/clc_min.h

@@ -1,3 +1,6 @@
+#ifndef __CLC_SHARED_CLC_MIN_H__
+#define __CLC_SHARED_CLC_MIN_H__
+
 #if defined(CLC_CLSPV) || defined(CLC_SPIRV)
 // clspv and spir-v targets provide their own OpenCL-compatible min
 #define __clc_min min
@@ -10,3 +13,5 @@
 #include <clc/math/gentype.inc>
 
 #endif
+
+#endif // __CLC_SHARED_CLC_MIN_H__