From c0d424c745075079d1d92e8fd785aab378564392 Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Wed, 22 Jan 2025 01:43:01 -0600
Subject: [PATCH] base.mk: add CSTD/CXXSTD

---
 base.mk | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/base.mk b/base.mk
index b6e3f3f..6c20686 100644
--- a/base.mk
+++ b/base.mk
@@ -2,6 +2,8 @@ DEBUG = -g -gdwarf-4
 
 AFLAGS += --fatal-warnings
 
+CSTD ?= -std=gnu23
+CXXSTD ?= -std=c++23
 CFLAGS += -falign-functions=4 -ffunction-sections -fdata-sections -fshort-enums -ffreestanding -nostdlib -fno-builtin
 CFLAGS += -Wall -Werror -Wfatal-errors
 CFLAGS += -Wno-array-bounds
@@ -103,10 +105,10 @@ endef
 	$(AS) $(AARCH) $(AFLAGS) $(DEBUG) $< -o $@
 
 %.o: %.c
-	$(CC) $(CARCH) $(CFLAGS) -std=gnu23 $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@
+	$(CC) $(CARCH) $(CFLAGS) $(CSTD) $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@
 
 %.o: %.cpp
-	$(CXX) $(CARCH) $(CFLAGS) -std=c++23 $(CXXFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@
+	$(CXX) $(CARCH) $(CFLAGS) $(CXXSTD) $(CXXFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@
 
 %.elf:
 	$(LD) $(LDFLAGS) -L $(LIB) -T $(LDSCRIPT) $^ -o $@