Lines Matching refs:Clang
227 # Are we compiling with Clang?
229 AC_CACHE_CHECK([whether $CC is Clang],
232 # Note that Autoconf sets GCC=yes for Clang as well as GCC
235 [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
247 # Clang needs special handling, because older versions handle the -pthread
252 # Clang takes -pthread; it has never supported any other flag
254 # (Note 1: This will need to be revisited if a system that Clang
269 # However, older versions of Clang make a point of warning the user
285 # that build with -Werror. So if the active version of Clang has
288 AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],