Build system: track -Wl,-elf2flt in CFLAGS_busybox too.
Document in comments that it generally should be thers,
not in LDFLAGS
diff --git a/Makefile.flags b/Makefile.flags
index cb2c878..e940547 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -91,8 +91,13 @@
LDLIBS += dmalloc
endif
-LDFLAGS_ELF2FLT = -Wl,-elf2flt
-ifneq (,$(findstring $(LDFLAGS_ELF2FLT),$(LDFLAGS)))
+# If a flat binary should be built, CFLAGS_busybox="-Wl,-elf2flt"
+# env var should be set for make invocation.
+# Here we check whether CFLAGS_busybox indeed contains that flag.
+# (For historical reasons, we also check LDFLAGS, which doesn't
+# seem to be entirely correct variable to put "-Wl,-elf2flt" into).
+W_ELF2FLT = -Wl,-elf2flt
+ifneq (,$(findstring $(W_ELF2FLT),$(LDFLAGS) $(CFLAGS_busybox)))
SKIP_STRIP = y
endif