From d8e6f2a2bc81510ef9d8f25b79023397bdaa1277 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sun, 1 Jan 2023 15:51:52 +0000
Subject: [PATCH] use qemu user-mode to run cross-compiled xchacha20

---
 crypto/chacha20/Makefile | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/crypto/chacha20/Makefile b/crypto/chacha20/Makefile
index fb64bfa5..deb5f4b9 100644
--- a/crypto/chacha20/Makefile
+++ b/crypto/chacha20/Makefile
@@ -1,12 +1,16 @@
 # A simple Makefile, to build run: make all
 TARGET	= test
 
-CC	= gcc
+CROSS ?= powerpc64le-linux-gnu-
+AS = $(CROSS)as
+CC = $(CROSS)gcc
+LD = $(CROSS)ld
+
 #compiler flags here
-CFLAGS = -O3 -Wall -Wextra
+CFLAGS = -O3 -Wall -Wextra -static -mno-vsx -mno-altivec
 
 #linker flags here
-LFLAGS = -Wall
+LDFLAGS = -Wall -static
 
 SRCDIR	= src
 
@@ -18,13 +22,13 @@ OBJECTS	:= $(SOURCES:$(SRCDIR)/%.c=$(SRCDIR)/%.o)
 all: ${TARGET}
 
 $(TARGET): $(OBJECTS)
-	@$(CC) -o $@ $(LFLAGS) $(OBJECTS)
+	$(CC) -o $@ $(LDFLAGS) $(OBJECTS)
 
 $(OBJECTS): $(SRCDIR)/%.o : $(SRCDIR)/%.c
-	@$(CC) $(CFLAGS) -c $< -o $@
+	$(CC) $(CFLAGS) -c $< -o $@
 
 clean:
-	@$ rm -f $(OBJECTS)
+	$ rm -f $(OBJECTS)
 
 remove: clean
-	@$ rm -f $(TARGET)
+	$ rm -f $(TARGET)
-- 
2.30.2