fix f128 check

Author: bassiounix

libc/shared/math/frexpf128.h

@@ -10,13 +10,12 @@
 #define LLVM_LIBC_SHARED_MATH_FREXPF128_H
 
 #include "include/llvm-libc-types/float128.h"
+
+#ifdef LIBC_TYPES_HAS_FLOAT128
+
 #include "shared/libc_common.h"
 #include "src/__support/macros/properties/complex_types.h"
 
-#ifndef LIBC_TYPES_HAS_FLOAT128
-#error unsupported
-#endif
-
 namespace LIBC_NAMESPACE_DECL {
 namespace shared {
 

libc/src/__support/math/frexpf128.h

@@ -11,9 +11,7 @@
 
 #include "include/llvm-libc-types/float128.h"
 
-#ifndef LIBC_TYPES_HAS_FLOAT128
-#error unsupported
-#else
+#ifdef LIBC_TYPES_HAS_FLOAT128
 
 #include "src/__support/FPUtil/ManipulationFunctions.h"
 #include "src/__support/common.h"

utils/bazel/llvm-project-overlay/libc/BUILD.bazel

@@ -2703,7 +2703,6 @@ libc_math_function(
     name = "expf",
     additional_deps = [
         ":__support_math_expf",
-        ":__support_math_frexpf128",
         ":errno",
     ],
 )
@@ -3156,7 +3155,12 @@ libc_math_function(name = "frexpf")
 
 libc_math_function(name = "frexpl")
 
-libc_math_function(name = "frexpf128")
+libc_math_function(
+    name = "frexpf128",
+    additional_deps = [
+        ":__support_math_frexpf128",
+    ]
+)
 
 libc_math_function(name = "frexpf16")