diff --git a/bash/smake/etc/smake/build.smk b/bash/smake/etc/smake/build.smk
index 63a5b6a..3ae65ad 100644
--- a/bash/smake/etc/smake/build.smk
+++ b/bash/smake/etc/smake/build.smk
@@ -24,7 +24,7 @@ endif
 CFLAGS += -Wall
 LDFLAGS += -Wall $(LIBRARIES)
 
-all: change_build_mode $(TARGET)
+all: change_make_options $(TARGET)
 
 ifneq ($(mode),debug)
 ifneq ($(mode),profile)
@@ -43,12 +43,16 @@ endif
 	@echo "LDFLAGS=$(LDFLAGS)"
 	@echo ".........................."
 
-OLD_BUILD_MODE=$(shell cat build_mode.out 2>/dev/null)
-change_build_mode:
-ifneq ($(mode), $(OLD_BUILD_MODE))
+OLD_BUILD_MODE=$(shell grep ^MODE make_options.out 2>/dev/null | sed 's~^MODE=~~')
+OLD_BUILD_CFLAGS=$(shell grep ^CFLAGS make_options.out 2>/dev/null | sed 's~^CFLAGS=~~')
+OLD_BUILD_LDFLAGS=$(shell grep ^LDFLAGS make_options.out 2>/dev/null | sed 's~^LDFLAGS=~~')
+change_make_options:
+ifneq ($(mode)|$(CFLAGS)|$(LDFLAGS), $(OLD_BUILD_MODE)|$(OLD_BUILD_CFLAGS)|$(OLD_BUILD_LDFLAGS))
 	@echo CLEANING...
 	@make clean &>/dev/null
-	@echo $(mode) > build_mode.out
+	@echo MODE=$(mode) > make_options.out
+	@echo CFLAGS=$(CFLAGS) >> make_options.out
+	@echo LDFLAGS=$(LDFLAGS) >> make_options.out
 endif
 
 %.o :
@@ -57,4 +61,4 @@ endif
 clean:
 	$(RM) *.o *.out callgrind.out.* *.gcno $(TARGET)
 
-.PHONY: all change_build_mode clean
+.PHONY: all change_make_options clean