Merge pull request #7964 from kevinburke/no-selinux-mac

GNUMakefile: fix compilation on Macs

Author: sylvestre

.github/workflows/CICD.yml

@@ -526,6 +526,8 @@ jobs:
           - { os: ubuntu-latest  , target: x86_64-unknown-redox        , features: feat_os_unix_redox     , use-cross: redoxer , skip-tests: true }
           - { os: ubuntu-latest  , target: wasm32-unknown-unknown      , default-features: false, features: uucore/format, skip-tests: true, skip-package: true, skip-publish: true }
           - { os: macos-latest   , target: aarch64-apple-darwin        , features: feat_os_macos, workspace-tests: true } # M1 CPU
+          # PR #7964: Mac should still build even if the feature is not enabled
+          - { os: macos-latest   , target: aarch64-apple-darwin        , workspace-tests: true } # M1 CPU
           - { os: macos-13       , target: x86_64-apple-darwin         , features: feat_os_macos, workspace-tests: true }
           - { os: windows-latest , target: i686-pc-windows-msvc        , features: feat_os_windows }
           - { os: windows-latest , target: x86_64-pc-windows-gnu       , features: feat_os_windows }

GNUmakefile

@@ -58,6 +58,13 @@ TOYBOX_ROOT := $(BASEDIR)/tmp
 TOYBOX_VER  := 0.8.12
 TOYBOX_SRC  := $(TOYBOX_ROOT)/toybox-$(TOYBOX_VER)
 
+#------------------------------------------------------------------------
+# Detect the host system.
+# On Windows the environment already sets  OS = Windows_NT.
+# Otherwise let it default to the kernel name returned by uname -s
+# (Linux, Darwin, FreeBSD, …).
+#------------------------------------------------------------------------
+OS ?= $(shell uname -s)
 
 ifdef SELINUX_ENABLED
 	override SELINUX_ENABLED := 0
@@ -181,6 +188,13 @@ SELINUX_PROGS := \
 	chcon \
 	runcon
 
+$(info Detected OS = $(OS))
+
+# Don't build the SELinux programs on macOS (Darwin)
+ifeq ($(OS),Darwin)
+  SELINUX_PROGS :=
+endif
+
 ifneq ($(OS),Windows_NT)
 	PROGS := $(PROGS) $(UNIX_PROGS)
 # Build the selinux command even if not on the system