I'm working from libgcrypt master on ppc64le:
```
crc-ppc.c:212:23: error: call to 'vec_vsx_ld' is ambiguous
vector2x_u64 my_p = CRC_VEC_U64_LOAD(0, &consts->my_p[0]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
crc-ppc.c:169:4: note: expanded from macro 'CRC_VEC_U64_LOAD'
vec_vsx_ld((offs), (const unsigned long long *)(ptr))
^~~~~~~~~~
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11903:1: note: candidate function
vec_vsx_ld(int __a, const vector bool int *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11908:1: note: candidate function
vec_vsx_ld(int __a, const vector signed int *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11913:1: note: candidate function
vec_vsx_ld(int __a, const signed int *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11918:1: note: candidate function
vec_vsx_ld(int __a, const vector unsigned int *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11923:1: note: candidate function
vec_vsx_ld(int __a, const unsigned int *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11928:1: note: candidate function
vec_vsx_ld(int __a, const vector float *__b) {
^
/usr/lib/llvm-8/lib/clang/8.0.0/include/altivec.h:11932:45: note: candidate function
static __inline__ vector float __ATTRS_o_ai vec_vsx_ld(int __a,
^
```