Conditionalize constant folding of math intrinsics on the availability of an implemen...

[oota-llvm.git] / autoconf / configure.ac

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index c1f2884145e4c39469dfce82600370f73ea30c39..ae615df2029ba34b45d994a57ba3ac37f7b2c971 100644 (file)
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1573,6 +1573,7 @@ dnl===-----------------------------------------------------------------------===
 
 AC_CHECK_FUNCS([backtrace ceilf floorf roundf rintf nearbyintf getcwd ])
 AC_CHECK_FUNCS([powf fmodf strtof round ])
+AC_CHECK_FUNCS([log log2 log10 exp exp2])
 AC_CHECK_FUNCS([getpagesize getrusage getrlimit setrlimit gettimeofday ])
 AC_CHECK_FUNCS([isatty mkdtemp mkstemp ])
 AC_CHECK_FUNCS([mktemp posix_spawn pread realpath sbrk setrlimit strdup ])