- ifdtool: respect LDFLAGS
- nvramtool: respect CFLAGS
- pmh7tool: respect CC, CFLAGS

--- a/util/ifdtool/Makefile.inc	2022-10-16 20:14:31.000000000 +0000
+++ b/util/ifdtool/Makefile.inc	2022-12-25 11:38:47.572534621 +0000
@@ -16,4 +16,4 @@
 
 $(objutil)/ifdtool/ifdtool: $(addprefix $(objutil)/ifdtool/,$(ifdtoolobj))
 	printf "   IFDTOOL\n"
-	$(HOSTCC) $(addprefix $(objutil)/ifdtool/,$(ifdtoolobj)) -o $@
+	$(HOSTCC) $(LDFLAGS) $(addprefix $(objutil)/ifdtool/,$(ifdtoolobj)) -o $@
--- a/util/nvramtool/Makefile	2022-10-16 20:14:31.000000000 +0000
+++ b/util/nvramtool/Makefile	2022-12-25 11:39:15.924345609 +0000
@@ -11,7 +11,7 @@
 CC     ?= gcc
 INSTALL = /usr/bin/env install
 PREFIX  = /usr/local
-CFLAGS  = -O2 -g -Wall -Wextra -Wmissing-prototypes -I. -DCMOS_HAL=1
+CFLAGS  += -O2 -g -Wall -Wextra -Wmissing-prototypes -I. -DCMOS_HAL=1
 #CFLAGS  = -Os -Wall
 
 CLI_OBJS = cli/nvramtool.o cli/opts.o
--- a/util/pmh7tool/Makefile	2022-10-16 20:14:31.000000000 +0000
+++ b/util/pmh7tool/Makefile	2022-12-25 11:39:38.491195945 +0000
@@ -1,7 +1,7 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
-CC = gcc
-CFLAGS = -O2 -Wall -Wextra -Werror
+CC ?= gcc
+CFLAGS ?= -O2 -Wall -Wextra -Werror
 PROGRAM = pmh7tool
 INSTALL = /usr/bin/env install
 PREFIX	= /usr/local