diff --git a/mozilla/xpcom/string/public/nsAString.h b/mozilla/xpcom/string/public/nsAString.h
index 6fcc0a0eb20..3675989c140 100644
--- a/mozilla/xpcom/string/public/nsAString.h
+++ b/mozilla/xpcom/string/public/nsAString.h
@@ -54,7 +54,7 @@
 // If some platform(s) can't handle our template that matches literal strings,
 // then we'll disable it on those platforms.
 #ifndef NS_DISABLE_LITERAL_TEMPLATE
-#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560))
+#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560)) || (defined(__HP_aCC) && (__HP_aCC <= 012100))
 #    define NS_DISABLE_LITERAL_TEMPLATE
 #  endif
 #endif /* !NS_DISABLE_LITERAL_TEMPLATE */
diff --git a/mozilla/xpcom/string/public/nsSubstring.h b/mozilla/xpcom/string/public/nsSubstring.h
index f0842cf571d..35a1a5687f1 100644
--- a/mozilla/xpcom/string/public/nsSubstring.h
+++ b/mozilla/xpcom/string/public/nsSubstring.h
@@ -48,7 +48,7 @@
 // If some platform(s) can't handle our template that matches literal strings,
 // then we'll disable it on those platforms.
 #ifndef NS_DISABLE_LITERAL_TEMPLATE
-#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560))
+#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560)) || (defined(__HP_aCC) && (__HP_aCC <= 012100))
 #    define NS_DISABLE_LITERAL_TEMPLATE
 #  endif
 #endif /* !NS_DISABLE_LITERAL_TEMPLATE */