Remove -O2 and -g cflags
Remove CC and AR hardcoded
HOST_CC is not used for the object we want
--- a/quickjs/Makefile	2025-07-09 12:39:19.000000000 -0000
+++ a/quickjs/Makefile	2025-07-25 13:53:30.173279954 -0000
@@ -126,13 +126,13 @@
   AR=cosmoar
 else
   HOST_CC=gcc
-  CC=$(CROSS_PREFIX)gcc
-  CFLAGS+=-g -Wall -MMD -MF $(OBJDIR)/$(@F).d
+  CC ?= $(CROSS_PREFIX)gcc
+  CFLAGS+=-Wall -MMD -MF $(OBJDIR)/$(@F).d
   CFLAGS += -Wno-array-bounds -Wno-format-truncation -Wno-infinite-recursion
   ifdef CONFIG_LTO
     AR=$(CROSS_PREFIX)gcc-ar
   else
-    AR=$(CROSS_PREFIX)ar
+    AR ?= $(CROSS_PREFIX)ar
   endif
 endif
 STRIP?=$(CROSS_PREFIX)strip
@@ -160,7 +160,7 @@
 CFLAGS+=$(DEFINES)
 CFLAGS_DEBUG=$(CFLAGS) -O0
 CFLAGS_SMALL=$(CFLAGS) -Os
-CFLAGS_OPT=$(CFLAGS) -O2
+CFLAGS_OPT=$(CFLAGS)
 CFLAGS_NOLTO:=$(CFLAGS_OPT)
 ifdef CONFIG_COSMO
 LDFLAGS+=-s # better to strip by default