dnl We need to check for the compiler up here to avoid anything else
dnl starting with a different one.
-AC_PROG_CC(clang llvm-gcc gcc)
-AC_PROG_CXX(clang++ llvm-g++ g++)
+AC_PROG_CC(clang gcc)
+AC_PROG_CXX(clang++ g++)
AC_PROG_CPP
dnl If CXX is Clang, check that it can find and parse C++ standard library