diff --git a/src/hb-unicode.cc b/src/hb-unicode.cc
index cf2032fd63c53ab9f5381c2e710a0f86f04ac1f7..6b32faf667fbd98539b59e1ceecb5fae0ac60d16 100644
--- a/src/hb-unicode.cc
+++ b/src/hb-unicode.cc
@@ -146,14 +146,9 @@ hb_unicode_funcs_get_default (void)
 }
 
 #if !defined(HB_NO_UNICODE_FUNCS) && defined(HB_UNICODE_FUNCS_NIL)
-#ifdef _MSC_VER
-#pragma error("Could not find any Unicode functions implementation, you have to provide your own.")
-#pragma error("Consider building hb-ucdn.c.  If you absolutely want to build without any, check the code.")
-#else
 #error "Could not find any Unicode functions implementation, you have to provide your own"
 #error "Consider building hb-ucdn.c.  If you absolutely want to build without any, check the code."
 #endif
-#endif
 
 /**
  * hb_unicode_funcs_create: (Xconstructor)
diff --git a/src/hb-warning.cc b/src/hb-warning.cc
index e69fff234cd5b9ffd433c4f9ff66108d79a96595..8f322bcb10dae012e5cb2dd04ddbb62173305cce 100644
--- a/src/hb-warning.cc
+++ b/src/hb-warning.cc
@@ -29,21 +29,11 @@
 
 
 #if defined(HB_ATOMIC_INT_NIL)
-#ifdef _MSC_VER
-#pragma error("Could not find any system to define atomic_int macros, library WILL NOT be thread-safe")
-#pragma error("Check hb-atomic-private.hh for possible resolutions.")
-#else
 #error "Could not find any system to define atomic_int macros, library WILL NOT be thread-safe"
 #error "Check hb-atomic-private.hh for possible resolutions."
 #endif
-#endif
 
 #if defined(HB_MUTEX_IMPL_NIL)
-#ifdef _MSC_VER
-#pragma error("Could not find any system to define mutex macros, library WILL NOT be thread-safe")
-#pragma error("Check hb-mutex-private.hh for possible resolutions.")
-#else
 #error "Could not find any system to define mutex macros, library WILL NOT be thread-safe"
 #error "Check hb-mutex-private.hh for possible resolutions."
 #endif
-#endif