From fe33d5ba13370027165b9acf2bd895f5b4d9a4ea Mon Sep 17 00:00:00 2001
From: Michael Pratt <mcpratt@pm.me>
Date: Wed, 22 Mar 2023 18:29:24 -0400
Subject: [PATCH] tools: add gnulib source

By having a local copy of gnulib, we can:
import the latest macro fixes into any package,
get rid of some statically stored macros that were otherwise missing,
bootstrap GNU tools with the latest relevant source
without having to wait for a release or rely on git submodules,
and possibly more...

The patch assists in bootstrapping by ignoring
the building of po files using gettext,
and also to allow a user-defined path to a program
to include parameters.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
---
 rules.mk                                 |  1 +
 tools/Makefile                           |  1 +
 tools/gnulib/Makefile                    | 25 +++++++++++
 tools/gnulib/patches/000-bootstrap.patch | 54 ++++++++++++++++++++++++
 4 files changed, 81 insertions(+)
 create mode 100644 tools/gnulib/Makefile
 create mode 100644 tools/gnulib/patches/000-bootstrap.patch

diff --git a/rules.mk b/rules.mk
index cc7904ac728..dcac49667bb 100644
--- a/rules.mk
+++ b/rules.mk
@@ -358,6 +358,7 @@ ifeq ($(CONFIG_BUILD_LOG),y)
 endif
 
 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
+export HOST_GNULIB_SRCDIR:=$(STAGING_DIR_HOST)/share/gnulib
 export M4:=$(STAGING_DIR_HOST)/bin/m4
 
 define shvar
diff --git a/tools/Makefile b/tools/Makefile
index 7e8fbad107e..3bf94827cf6 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -45,6 +45,7 @@ tools-y += findutils
 tools-y += firmware-utils
 tools-y += flex
 tools-y += gengetopt
+tools-y += gnulib
 tools-y += libressl
 tools-y += libtool
 tools-y += lzma
diff --git a/tools/gnulib/Makefile b/tools/gnulib/Makefile
new file mode 100644
index 00000000000..c5b7e78c548
--- /dev/null
+++ b/tools/gnulib/Makefile
@@ -0,0 +1,25 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=gnulib
+PKG_CPE_ID:=cpe:/a:gnu:$(PKG_NAME)
+PKG_VERSION:=f9a4ee73c3e7b544f640d0d04b55983d3a7b894e# # master
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://git.savannah.gnu.org/cgit/$(PKG_NAME).git/snapshot
+PKG_HASH:=514716d58987a9c0de0d69fb22d42bcd19edf80eed099882a004ff162060f1a8
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Configure
+endef
+
+define Host/Install
+	$(INSTALL_DIR) $(1)/share/gnulib
+	$(CP) $(HOST_BUILD_DIR)/* $(1)/share/gnulib/
+endef
+
+define Host/Clean
+	rm -rf $(STAGING_DIR_HOST)/share/gnulib
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/gnulib/patches/000-bootstrap.patch b/tools/gnulib/patches/000-bootstrap.patch
new file mode 100644
index 00000000000..40ed41125c5
--- /dev/null
+++ b/tools/gnulib/patches/000-bootstrap.patch
@@ -0,0 +1,54 @@
+--- a/build-aux/bootstrap
++++ b/build-aux/bootstrap
+@@ -237,14 +237,14 @@ test -r "$conffile" && . "$conffile"
+ 
+ check_exists() {
+   if test "$1" = "--verbose"; then
+-    ($2 --version </dev/null) >/dev/null 2>&1
++    ($2 $3 $4 --version </dev/null) >/dev/null 2>&1
+     if test $? -ge 126; then
+       # If not found, run with diagnostics as one may be
+       # presented with env variables to set to find the right version
+-      ($2 --version </dev/null)
++      ($2 $3 $4 --version </dev/null)
+     fi
+   else
+-    ($1 --version </dev/null) >/dev/null 2>&1
++    ($@ --version </dev/null) >/dev/null 2>&1
+   fi
+ 
+   test $? -lt 126
+@@ -309,7 +309,7 @@ p
+ q'
+ 
+ get_version() {
+-  app=$1
++  app="$@"
+ 
+   $app --version >/dev/null 2>&1 || { $app --version; return 1; }
+ 
+@@ -366,13 +366,13 @@ check_versions() {
+     if [ "$req_ver" = "-" ]; then
+       # Merely require app to exist; not all prereq apps are well-behaved
+       # so we have to rely on $? rather than get_version.
+-      if ! check_exists --verbose $app; then
++      if ! check_exists --verbose "$app"; then
+         warn_ "Error: '$app' not found"
+         ret=1
+       fi
+     else
+       # Require app to produce a new enough version string.
+-      inst_ver=$(get_version $app)
++      inst_ver=$(get_version "$app")
+       if [ ! "$inst_ver" ]; then
+         warn_ "Error: '$app' not found"
+         ret=1
+@@ -1135,7 +1135,7 @@ autogen()
+   # two just-pre-run programs.
+ 
+   # Import from gettext.
+-  with_gettext=yes
++  with_gettext=no
+   grep '^[	 ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
+       with_gettext=no
+