Fix farmhashbuild on Windows (tensorflow#4460)

phd3 · Sep 28, 2016 · 78fbc21 · 78fbc21
1 parent 734c18b
commit 78fbc21
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/farmhash.BUILD b/farmhash.BUILD
@@ -1,9 +1,22 @@
 licenses(["notice"])  # MIT
 
+config_setting(
+    name = "windows",
+    values = {
+        "cpu": "x64_windows_msvc",
+    },
+)
+
+
 cc_library(
     name = "farmhash",
     srcs = ["farmhash.cc"],
     hdrs = ["farmhash.h"],
+    # Disable __builtin_expect support on Windows
+    copts = select({
+        ":windows" : ["/DFARMHASH_OPTIONAL_BUILTIN_EXPECT"],
+        "//conditions:default" : [],
+    }),
     includes = ["."],
     visibility = ["//visibility:public"],
 )