Index: teeworlds-0.6.5-src/bam.lua
===================================================================
--- teeworlds-0.6.5-src/bam.lua
+++ teeworlds-0.6.5-src/bam.lua	2018-11-09 14:32:58.109225214 +0100
@@ -146,6 +146,9 @@
 	
 	--settings.objdir = Path("objs")
 	settings.cc.Output = Intermediate_Output
+	settings.cc.flags_c:Add(os.getenv('CFLAGS'))
+	settings.cc.flags_cxx:Add(os.getenv('CXXFLAGS'))
+	settings.link.flags:Add(os.getenv('LDFLAGS'))
 
 	if config.compiler.driver == "cl" then
 		settings.cc.flags:Add("/wd4244", "/wd4577")