diff --git a/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__rast__tri.c b/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__rast__tri.c
new file mode 100644
index 000000000000..df98dd775c5c
--- /dev/null
+++ b/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__rast__tri.c
@@ -0,0 +1,14 @@
+--- src/gallium/drivers/llvmpipe/lp_rast_tri.c.orig	2020-09-28 22:52:10 UTC
++++ src/gallium/drivers/llvmpipe/lp_rast_tri.c
+@@ -465,6 +465,11 @@ lp_rast_triangle_32_3_4(struct lp_rasterizer_task *tas
+ 
+ #if defined(_ARCH_PWR8) && UTIL_ARCH_LITTLE_ENDIAN
+ 
++#ifdef __clang__
++#undef vector
++#undef pixel
++#undef bool
++#endif
+ #include <altivec.h>
+ #include "util/u_pwr8.h"
+ 
diff --git a/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__setup__tri.c b/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__setup__tri.c
new file mode 100644
index 000000000000..d1b66fb52af0
--- /dev/null
+++ b/graphics/mesa-dri/files/patch-src_gallium_drivers_llvmpipe_lp__setup__tri.c
@@ -0,0 +1,14 @@
+--- src/gallium/drivers/llvmpipe/lp_setup_tri.c.orig	2020-10-22 23:39:01 UTC
++++ src/gallium/drivers/llvmpipe/lp_setup_tri.c
+@@ -47,6 +47,11 @@
+ #if defined(PIPE_ARCH_SSE)
+ #include <emmintrin.h>
+ #elif defined(_ARCH_PWR8) && UTIL_ARCH_LITTLE_ENDIAN
++#ifdef __clang__
++#undef vector
++#undef pixel
++#undef bool
++#endif
+ #include <altivec.h>
+ #include "util/u_pwr8.h"
+ #endif