From cd1e4567f2b2373fa50afe1c0ebec84a684eb31e Mon Sep 17 00:00:00 2001
From: Jean Pierre Cimalando <jp-dev@inbox.ru>
Date: Sun, 25 Apr 2021 05:49:45 +0200
Subject: [PATCH] Add cmake option for -ftime-trace

---
 CMakeLists.txt          |  1 +
 cmake/SfizzConfig.cmake | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b45737c0..d3954343 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,7 @@ option_ex (SFIZZ_USE_SYSTEM_ABSEIL "Use Abseil libraries preinstalled on system"
 option_ex (SFIZZ_USE_SYSTEM_SIMDE  "Use SIMDe libraries preinstalled on system" OFF)
 option_ex (SFIZZ_STATIC_DEPENDENCIES "Link dependencies statically" OFF)
 option_ex (SFIZZ_RELEASE_ASSERTS   "Forced assertions in release builds" OFF)
+option_ex (SFIZZ_PROFILE_BUILD     "Profile the build time" OFF)
 
 # The fixed number of controller parameters
 set(SFIZZ_NUM_CCS 512)
diff --git a/cmake/SfizzConfig.cmake b/cmake/SfizzConfig.cmake
index 21d71585..40f248de 100644
--- a/cmake/SfizzConfig.cmake
+++ b/cmake/SfizzConfig.cmake
@@ -1,4 +1,5 @@
 include(CMakeDependentOption)
+include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
 include(GNUWarnings)
 
@@ -22,6 +23,18 @@ elseif((SFIZZ_LV2_UI OR SFIZZ_VST OR SFIZZ_AU OR SFIZZ_VST2) AND CMAKE_CXX_STAND
     set(CMAKE_CXX_STANDARD 14)
 endif()
 
+# Set build profiling options
+if(SFIZZ_PROFILE_BUILD)
+    check_c_compiler_flag("-ftime-trace" SFIZZ_HAVE_CFLAG_FTIME_TRACE)
+    check_cxx_compiler_flag("-ftime-trace" SFIZZ_HAVE_CXXFLAG_FTIME_TRACE)
+    if(SFIZZ_HAVE_CFLAG_FTIME_TRACE)
+        add_compile_options("$<$<COMPILE_LANGUAGE:C>:-ftime-trace>")
+    endif()
+    if(SFIZZ_HAVE_CXXFLAG_FTIME_TRACE)
+        add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-ftime-trace>")
+    endif()
+endif()
+
 # Process sources as UTF-8
 if(MSVC)
     add_compile_options("/utf-8")