Un-break the build on OpenBSD & FreeBSD.

PiperOrigin-RevId: 294042949
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/BUILD b/src/main/java/com/google/devtools/build/lib/syntax/BUILD
index 2aac73b..7727052 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/syntax/BUILD
@@ -165,6 +165,8 @@
     hdrs = ["@bazel_tools//tools/jdk:jni_header"] + select({
         "//src/conditions:linux_x86_64": ["@bazel_tools//tools/jdk:jni_md_header-linux"],
         "//src/conditions:darwin": ["@bazel_tools//tools/jdk:jni_md_header-darwin"],
+        "//src/conditions:freebsd": ["@bazel_tools//tools/jdk:jni_md_header-freebsd"],
+        "//src/conditions:openbsd": ["@bazel_tools//tools/jdk:jni_md_header-openbsd"],
         "//src/conditions:windows": ["@bazel_tools//tools/jdk:jni_md_header-windows"],
         "//conditions:default": [],
     }),
@@ -172,6 +174,8 @@
         # Remove these crazy prefixes when we move this rule.
         "//src/conditions:linux_x86_64": ["../../../../../../../../../external/bazel_tools/tools/jdk/include/linux"],
         "//src/conditions:darwin": ["../../../../../../../../../external/bazel_tools/tools/jdk/include/darwin"],
+        "//src/conditions:freebsd": ["../../../../../../../../../external/bazel_tools/tools/jdk/include/freebsd"],
+        "//src/conditions:openbsd": ["../../../../../../../../../external/bazel_tools/tools/jdk/include/openbsd"],
         "//src/conditions:windows": ["../../../../../../../../../external/bazel_tools/tools/jdk/include/win32"],
         "//conditions:default": [],
     }),