From 384338c637c4277d1fec6ac2cc6e85b36384f2f1 Mon Sep 17 00:00:00 2001
From: Sergiu Deitsch <sergiu.deitsch@gmail.com>
Date: Sun, 8 Oct 2023 16:51:00 +0200
Subject: [PATCH] empty source

---
 CMakeLists.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 854d61fc5..b80d5c903 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -490,8 +490,18 @@ add_library (glog_internal OBJECT
 target_compile_features (glog_internal PUBLIC $<TARGET_PROPERTY:glog,COMPILE_FEATURES>)
 set_target_properties (glog_internal PROPERTIES DEFINE_SYMBOL GOOGLE_GLOG_IS_A_DLL)
 
+# Some generators (such as Xcode) do not generate any output if the target does
+# not reference at least one source file.
+set (_glog_EMPTY_SOURCE ${glog_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/glog.cc)
+
+add_custom_command (
+  OUTPUT ${_glog_EMPTY_SOURCE}
+  COMMAND ${CMAKE_COMMAND} -E touch ${_glog_EMPTY_SOURCE}
+)
+
 add_library (glog
   $<TARGET_OBJECTS:glog_internal>
+  ${_glog_EMPTY_SOURCE}
 )
 target_compile_features (glog PUBLIC cxx_std_14)