From 1f6143ab6388bbfa8991b763edef9ee35f8efbae Mon Sep 17 00:00:00 2001
From: Michael Gebetsroither <michael@mgeb.org>
Date: Fri, 8 May 2026 23:37:49 +0200
Subject: [PATCH] add Makefile, adding musl-static compilation target (thx
 copy.fail!)

---
 Makefile | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Makefile

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..326c1af
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,33 @@
+CC ?= cc
+
+CFLAGS  ?= -O0 -Wall
+LDFLAGS ?= -lutil
+
+.PHONY: all musl-shim musl-static
+
+all: exp
+
+exp: exp.c
+	$(CC) $(CFLAGS) $(LDFLAGS) -O0 -Wall -o $@ $^
+	strip --strip-all $@
+
+ARCH := $(shell uname -m)
+MUSL_SHIM_DIR ?= .musl-shim
+UAPI_LINUX_DIR ?= /usr/include/linux
+UAPI_ASM_GENERIC_DIR ?= /usr/include/asm-generic
+UAPI_ASM_DIR ?= /usr/include/$(ARCH)-linux-gnu/asm
+musl-shim:
+	@test -d "$(UAPI_LINUX_DIR)" || { echo "missing UAPI headers: $(UAPI_LINUX_DIR)" >&2; exit 1; }
+	@test -d "$(UAPI_ASM_GENERIC_DIR)" || { echo "missing UAPI headers: $(UAPI_ASM_GENERIC_DIR)" >&2; exit 1; }
+	@test -d "$(UAPI_ASM_DIR)" || { echo "missing UAPI headers: $(UAPI_ASM_DIR)" >&2; exit 1; }
+	@mkdir -p "$(MUSL_SHIM_DIR)"
+	@ln -sfn "$(UAPI_LINUX_DIR)" "$(MUSL_SHIM_DIR)/linux"
+	@ln -sfn "$(UAPI_ASM_GENERIC_DIR)" "$(MUSL_SHIM_DIR)/asm-generic"
+	@ln -sfn "$(UAPI_ASM_DIR)" "$(MUSL_SHIM_DIR)/asm"
+
+musl-static: musl-shim
+	$(MAKE) CC=musl-gcc \
+		CFLAGS="$(CFLAGS) -isystem $(CURDIR)/$(MUSL_SHIM_DIR)" LDFLAGS="-static"
+
+clean:
+	rm -f exp