diff --git a/.gitignore b/.gitignore
index 52c7ccad..3e517858 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,4 +33,7 @@ CMakeCache.txt
 CMakeFiles
 cmake_install.cmake
 out/
+*release*/
+*debug*/
+*.zip
 erofs-utils-version.h
diff --git a/build.sh b/build.sh
index 4de0c989..cc0c3ce6 100755
--- a/build.sh
+++ b/build.sh
@@ -28,6 +28,7 @@ cmake_build()
 			-DANDROID_USE_LEGACY_TOOLCHAIN_FILE="OFF"
 	elif [[ $TARGET == "Linux" ]]; then
 		cmake -S ${BUILD_DIR} -B ${OUT} ${BUILD_METHOD} \
+			-DCMAKE_BUILD_TYPE="Release" \
 			-DCMAKE_C_COMPILER_LAUNCHER="ccache" \
 			-DCMAKE_CXX_COMPILER_LAUNCHER="ccache" \
 			-DCMAKE_C_COMPILER="clang" \
diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index f19493d8..3749c9fa 100644
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -14,25 +14,27 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 add_definitions(
 	"-D_FILE_OFFSET_BITS=64"
 	"-D_LARGEFILE_SOURCE"
-	"-DNDEBUG"
 )
 
 # Compile flags
 set(GLOBAL_CFLAGS
-	"-Os"
-	"-fdata-sections"
-	"-ffunction-sections"
 	"-funwind-tables"
 	"-fstack-protector-strong"
-	"-D_FORTIFY_SOURCE=2"
 	"-Wformat"
 	"-Werror=format-security"
 	"-no-canonical-prefixes"
-	"-fvisibility=hidden"
-	"-fvisibility-inlines-hidden"
+	"-Wno-macro-redefined"
 	"-fno-exceptions"
 	"-fno-rtti"
 )
+set(GLOBAL_CFLAGS_RELEASE
+	"-Os"
+	"-D_FORTIFY_SOURCE=2"
+	"-fdata-sections"
+	"-ffunction-sections"
+	"-fvisibility=hidden"
+	"-fvisibility-inlines-hidden"
+)
 
 # Linker flags
 set(GLOBAL_LDFLAGS
@@ -40,11 +42,21 @@ set(GLOBAL_LDFLAGS
 	"-Wl,--fatal-warnings"
 	"-Qunused-arguments"
 	"-Wl,--no-undefined"
-	"-Wl,--gc-sections"
 	"-static"
+)
+set(GLOBAL_LDFLAGS_RELEASE
+	"-Wl,--gc-sections"
 	"-s"
 )
 
+if (CMAKE_BUILD_TYPE STREQUAL "Release")
+	list(APPEND GLOBAL_CFLAGS ${GLOBAL_CFLAGS_RELEASE})
+	list(APPEND GLOBAL_LDFLAGS ${GLOBAL_LDFLAGS_RELEASE})
+	add_definitions("-DNDEBUG")
+elseif (CMAKE_BUILD_TYPE STREQUAL "Debug")
+	list(APPEND GLOBAL_CFLAGS "-O0" "-g")
+endif()
+
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
 	list(APPEND GLOBAL_CFLAGS "-fdiagnostics-color=always")
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")