From ffd7c05aa72ee56b836903159540f9470aeef121 Mon Sep 17 00:00:00 2001
From: Michael Pratt <mcpratt@pm.me>
Date: Thu, 20 Apr 2023 12:31:16 -0400
Subject: [PATCH] prereq-build: add check for true and false

Some uses cases, like with autotools, need a path for 'true'
if we use them to force something to skip.

This will work by default on Linux hosts,
and require MacOS hosts to get coreutils,
which is currently installed in the CI
for 'macos-latest' host.

In the future, prereq stage can be reworked
to search for the actual binary
instead of relying on env.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
---
 include/prereq-build.mk | 7 +++++++
 rules.mk                | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index 8fae92ab97..14a2210880 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -8,6 +8,13 @@ include $(INCLUDE_DIR)/prereq.mk
 SHELL:=sh
 PKG_NAME:=Build dependency
 
+$(eval $(call TestHostCommand,true, \
+	Please install GNU 'coreutils', \
+	$(TRUE)))
+
+$(eval $(call TestHostCommand,false, \
+	Please install GNU 'coreutils', \
+	$(FALSE); [ $$$$$$$$? = 1 ] && $(TRUE)))
 
 # Required for the toolchain
 $(eval $(call TestHostCommand,working-make, \
diff --git a/rules.mk b/rules.mk
index 57d7995d4f..cc7904ac72 100644
--- a/rules.mk
+++ b/rules.mk
@@ -268,6 +268,14 @@ FIND:=find
 PATCH:=patch
 PYTHON:=python3
 
+ifeq ($(HOST_OS),Darwin)
+  TRUE:=/usr/bin/env gtrue
+  FALSE:=/usr/bin/env gfalse
+else
+  TRUE:=/usr/bin/env true
+  FALSE:=/usr/bin/env false
+endif
+
 INSTALL_BIN:=install -m0755
 INSTALL_SUID:=install -m4755
 INSTALL_DIR:=install -d -m0755
-- 
2.30.2