From 3869ccbcc891a7185550a2a422e2db01fd994b7d Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 27 Jan 2022 13:25:39 +0100
Subject: [PATCH] tools: build bash on macOS and use it for ipkg-build

On macOS, system binaries silently drop the environment variables for injecting
extra shared libraries (used by fakeroot). This is done for security reasons.
Work around this by building bash from source, so that it gets an ad-hoc signature
and does not have these restrictions

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 include/package-ipkg.mk |  2 +-
 tools/Makefile          |  3 +++
 tools/bash/Makefile     | 21 +++++++++++++++++++++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 tools/bash/Makefile

diff --git a/include/package-ipkg.mk b/include/package-ipkg.mk
index 362a0e2a8b..3063a86a28 100644
--- a/include/package-ipkg.mk
+++ b/include/package-ipkg.mk
@@ -264,7 +264,7 @@ $(_endef)
     endif
 
 	$(INSTALL_DIR) $$(PDIR_$(1))
-	$(FAKEROOT) $(SCRIPT_DIR)/ipkg-build -m "$(FILE_MODES)" $$(IDIR_$(1)) $$(PDIR_$(1))
+	$(FAKEROOT) $(STAGING_DIR_HOST)/bin/bash $(SCRIPT_DIR)/ipkg-build -m "$(FILE_MODES)" $$(IDIR_$(1)) $$(PDIR_$(1))
 	@[ -f $$(IPKG_$(1)) ]
 
     $(1)-clean:
diff --git a/tools/Makefile b/tools/Makefile
index 686d5294d3..681344a014 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -80,6 +80,9 @@ ifneq ($(HOST_OS),Linux)
   $(curdir)/squashfskit4/compile += $(curdir)/coreutils/compile
   tools-y += coreutils
 endif
+ifeq ($(HOST_OS),Darwin)
+  tools-y += bash
+endif
 
 ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
 $(foreach tool, $(filter-out xz zstd pkgconf patch ninja meson libressl cmake,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/compile))
diff --git a/tools/bash/Makefile b/tools/bash/Makefile
new file mode 100644
index 0000000000..7c25b83327
--- /dev/null
+++ b/tools/bash/Makefile
@@ -0,0 +1,21 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=bash
+PKG_CPE_ID:=cpe:/a:gnu:bash
+PKG_VERSION:=5.1.16
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=@GNU/bash
+PKG_HASH:=5bac17218d3911834520dad13cd1f85ab944e1c09ae1aba55906be1f8192f558
+
+HOST_BUILD_PARALLEL := 1
+
+include $(INCLUDE_DIR)/host-build.mk
+
+$(eval $(call HostBuild))