Handle conflicting macros for FreeBSD

src/google/protobuf/port_def.inc

@@ -1030,6 +1030,19 @@ static_assert(PROTOBUF_ABSL_MIN(20230125, 3),
 #undef TYPE_BOOL
 #endif  // __APPLE__
 
+#ifdef __FreeBSD__
+// Inconvenient macro names from /usr/include/sys/param.h.
+#pragma push_macro("TRUE")
+#undef TRUE
+#pragma push_macro("FALSE")
+#undef FALSE
+// Inconvenient macro names from /usr/include/sys/limits.h.
+#pragma push_macro("UID_MAX")
+#undef UID_MAX
+#pragma push_macro("GID_MAX")
+#undef GID_MAX
+#endif  // __FreeBSD__
+
 #if defined(__clang__) || defined(__GNUC__) || defined(_MSC_VER)
 // Don't let Objective-C Macros interfere with proto identifiers with the same
 // name.

src/google/protobuf/port_undef.inc

@@ -192,6 +192,13 @@
 #pragma pop_macro("TYPE_BOOL")
 #endif  // __APPLE__
 
+#ifdef __FreeBSD__
+#pragma pop_macro("TRUE")
+#pragma pop_macro("FALSE")
+#pragma pop_macro("UID_MAX")
+#pragma pop_macro("GID_MAX")
+#endif  // __FreeBSD__
+
 #if defined(__clang__) || defined(__GNUC__) || defined(_MSC_VER)
 #pragma pop_macro("DEBUG")
 #endif // defined(__clang__) || defined(__GNUC__) || defined(_MSC_VER)