--- a/3rd/luamake/compile/ninja/linux.ninja
+++ b/3rd/luamake/compile/ninja/linux.ninja
@@ -2,20 +2,20 @@
 builddir = build/linux
 bin = $builddir/bin
 obj = $builddir/obj
-cc = gcc
+cc = REPLACE_ME
 luamake = luamake
 rule c_source_bee
-  command = $cc -MMD -MT $out -MF $out.d  -O2 -Wall -Werror $
+  command = $cc -MMD -MT $out -MF $out.d -Wall $
     -fvisibility=hidden -Ibee.lua/3rd/lua-seri -Itools/lua54 -DNDEBUG -fPIC $
-    -o $out -c $in
+    -o $out -c $in CFLAGS
   description = Compile C   $out
   deps = gcc
   depfile = $out.d
 build $obj/source_bee/lua-seri.obj: c_source_bee $
     bee.lua/3rd/lua-seri/lua-seri.c
 rule cxx_source_bee
-  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -O2 -Wall $
-    -Werror -fvisibility=hidden -DNDEBUG -fPIC -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -Wall $
+    -fvisibility=hidden -DNDEBUG -fPIC -o $out -c $in CXXFLAGS
   description = Compile C++ $out
   deps = gcc
   depfile = $out.d
@@ -23,8 +23,8 @@
     bee.lua/bee/nonstd/3rd/format.cc
 build $obj/source_bee/os.obj: cxx_source_bee bee.lua/bee/nonstd/3rd/os.cc
 rule cxx_source_bee_1
-  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -O2 -Wall $
-    -Werror -fvisibility=hidden -Ibee.lua -DNDEBUG -fPIC -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -Wall $
+    -fvisibility=hidden -Ibee.lua -DNDEBUG -fPIC -o $out -c $in CXXFLAGS
   description = Compile C++ $out
   deps = gcc
   depfile = $out.d
@@ -47,9 +47,9 @@
 build $obj/source_bee/path_helper.obj: cxx_source_bee_1 $
     bee.lua/bee/utility/path_helper.cpp
 rule cxx_source_bee_2
-  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -O2 -Wall $
-    -Werror -fvisibility=hidden -Ibee.lua/3rd/lua-seri -Ibee.lua $
-    -Itools/lua54 -DBEE_STATIC -DNDEBUG -fPIC -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -Wall $
+    -fvisibility=hidden -Ibee.lua/3rd/lua-seri -Ibee.lua $
+    -Itools/lua54 -DBEE_STATIC -DNDEBUG -fPIC -o $out -c $in CXXFLAGS
   description = Compile C++ $out
   deps = gcc
   depfile = $out.d
@@ -70,24 +70,24 @@
 build $obj/source_bee/lua_time.obj: cxx_source_bee_2 $
     bee.lua/binding/lua_time.cpp
 rule c_source_lua
-  command = $cc -MMD -MT $out -MF $out.d  -O2 -Wall -Werror $
-    -fvisibility=hidden -DNDEBUG -fPIC -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -Wall $
+    -fvisibility=hidden -DNDEBUG -fPIC -o $out -c $in CFLAGS
   description = Compile C   $out
   deps = gcc
   depfile = $out.d
 build $obj/source_lua/utf8_crt.obj: c_source_lua bee.lua/3rd/lua/utf8_crt.c
 rule c_source_lua_1
-  command = $cc -MMD -MT $out -MF $out.d  -O2 -Wall -Werror -DMAKE_LIB $
-    -DLUA_USE_LINUX -DNDEBUG -fPIC -Wno-maybe-uninitialized -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -Wall -DMAKE_LIB $
+    -DLUA_USE_LINUX -DNDEBUG -fPIC -Wno-maybe-uninitialized -o $out -c $in CFLAGS
   description = Compile C   $out
   deps = gcc
   depfile = $out.d
 build $obj/source_lua/linit.obj: c_source_lua_1 bee.lua/3rd/lua/linit.c
 build $obj/source_lua/onelua.obj: c_source_lua_1 bee.lua/3rd/lua/onelua.c
 rule cxx_source_bootstrap
-  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -O2 -Wall $
-    -Werror -fvisibility=hidden -Ibee.lua/3rd/lua -Ibee.lua -DLUA_USE_LINUX $
-    -DNDEBUG -fPIC -o $out -c $in
+  command = $cc -MMD -MT $out -MF $out.d -std=c++17 -fno-rtti -Wall $
+    -fvisibility=hidden -Ibee.lua/3rd/lua -Ibee.lua -DLUA_USE_LINUX $
+    -DNDEBUG -fPIC -o $out -c $in CXXFLAGS
   description = Compile C++ $out
   deps = gcc
   depfile = $out.d
@@ -97,7 +97,7 @@
     bee.lua/bootstrap/progdir.cpp
 rule link_luamake
   command = $cc $in -o $out -lm -ldl -Wl,-E -lstdc++fs -pthread $
-    -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -static-libgcc -s
+    -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -static-libgcc LDFLAGS
   description = Link    Exe $out
 build $bin/luamake: link_luamake $obj/source_bootstrap/main.obj $
     $obj/source_bootstrap/progdir.obj $obj/source_bee/lua-seri.obj $