From c7a31c8bbbd161a00cca1165cae4300c529ca03f Mon Sep 17 00:00:00 2001
From: xnpster <xnpster@yandex.ru>
Date: Thu, 25 Sep 2025 13:44:10 +0300
Subject: [PATCH] cmake: set -O2 optimization level only if CMAKE_BUILD_TYPE is
 not specified

---
 CMakeLists.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2fe7401..a0cf341 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -487,7 +487,7 @@ source_group (Predictor\\Library FILES ${LIBPREDICTOR})
 source_group (Parser FILES ${PARSER})
 source_group (PPPA\\PPPA FILES ${PPPA})
 source_group (PPPA\\ZLib FILES ${ZLIB})
-   
+
 if (MSVC_IDE)   
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /Zc:__cplusplus")
 else()
@@ -496,7 +496,9 @@ else()
     else()
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
     endif()
-   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+    if(NOT CMAKE_BUILD_TYPE)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+    endif()
 endif()
 
 add_subdirectory(projects/Fdvm)