systemd: bump to 236, convert to meson

systemd is no longer an autotools package, as such, it has now been converted
over to meson.

Even though systemd234 has meson support, it is broken with gcc7, as such
the revision bump and conversion to meson must be in a single patch.

Changes include:
  - Change systemd from an autotools package to a generic package
  - Changing all the options from --enable/disable to -Doption=true/false
  - Remove --without-python (no longer an option)
  - Remove all of the ac_cv_path_ variables, and move them into CONF_OPTS
    with the prefix -Doption-path=/path.
  - Add sha256sum's for the license files.
  - Remove 0002-build-check-for-ln-relative.patch and add
    0002-install-dont-use-ln-relative.patch in its place, the old patch relied on autotools and is no longer relevant.
  - Add 0004-add-false-option-for-tests.patch. With the conversion to meson,
    systemd no longer has the option to disable unit tests from being built.
    This patch re-adds the functionality. This prevents 381 files from being
    built, and prevents gcrypt from becoming a dependency.

Signed-off-by: Adam Duskett <Adamduskett@outlook.com>
Tested-by: Jérémy Rosen <jeremy.rosen@smile.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: gitlab-ci https://gitlab.com/ymorin/buildroot-ci/pipelines/15857672/builds
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/package/systemd/0002-install-don-t-use-ln-relative.patch b/package/systemd/0002-install-don-t-use-ln-relative.patch
new file mode 100644
index 0000000000..e76ce4378a
--- /dev/null
+++ b/package/systemd/0002-install-don-t-use-ln-relative.patch
@@ -0,0 +1,76 @@
+From ecf3b9baaebda1d9182c22dc504e32ed275d4abb Mon Sep 17 00:00:00 2001
+From: Adam Duskett <Adamduskett@outlook.com>
+Date: Sun, 31 Dec 2017 12:46:04 -0500
+Subject: [PATCH] install: don't use ln --relative
+
+Oldish enterprise-class distributions have too old versions of
+coreutils, with ln not supporting --relative.
+
+So we fake it.
+
+ln --relative would create minimalist relative paths, but they are not
+trivial to generate. Instead, we always create paths relative to the
+root, i.e.:
+
+    ln -s --relative /usr/bin/foo /usr/sbin/foo
+
+would create:  /usr/sbin/foo -> ../bin/foo
+while we do :  /usr/sbin/foo -> ../../usr/bin/foo
+
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
+[aduskett@gmail.com: Added meson.build section and dirname wrapper in add-wants]
+Signed-off-by: Adam Duskett <Adamduskett@outlook.com>
+---
+ meson.build                 | 2 +-
+ tools/meson-make-symlink.sh | 3 ++-
+ units/meson-add-wants.sh    | 5 +++--
+ 3 files changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index ddc061c..614201a 100644
+--- a/meson.build
++++ b/meson.build
+@@ -531,7 +531,7 @@ foreach prog : progs
+ endforeach
+ 
+ if run_command('ln', '--relative', '--help').returncode() != 0
+-        error('ln does not support --relative')
++        message('ln does not support --relative')
+ endif
+ 
+ ############################################################
+diff --git a/tools/meson-make-symlink.sh b/tools/meson-make-symlink.sh
+index 47a5e70..e9002ad 100755
+--- a/tools/meson-make-symlink.sh
++++ b/tools/meson-make-symlink.sh
+@@ -7,5 +7,6 @@ mkdir -vp "$(dirname "${DESTDIR:-}$2")"
+ if [ "$(dirname $1)" = . ]; then
+         ln -vfs -T "$1" "${DESTDIR:-}$2"
+ else
+-        ln -vfs -T --relative "${DESTDIR:-}$1" "${DESTDIR:-}$2"
++        dds="$( dirname "$2" |sed -r -e 's:/+[^/]+:../:g; s:/$::' )"
++        ln -vfs -T "${dds}$1" "${DESTDIR:-}$2"
+ fi
+diff --git a/units/meson-add-wants.sh b/units/meson-add-wants.sh
+index dfd287e..8c08283 100755
+--- a/units/meson-add-wants.sh
++++ b/units/meson-add-wants.sh
+@@ -13,7 +13,7 @@ case "$target" in
+                 ;;
+ esac
+ 
+-unitpath="${DESTDIR:-}${unitdir}/${unit}"
++unitpath="${unitdir}/${unit}"
+ 
+ case "$target" in
+         */)
+@@ -24,4 +24,5 @@ case "$target" in
+                 ;;
+ esac
+ 
+-ln -vfs --relative "$unitpath" "$dir"
++dds="$( dirname `printf "%s" "${dir#${DESTDIR:-}}" |sed -r -e 's:/+[^/]+:../:g; s:/$::'` )"
++ln -vfs "$dds$unitpath" "$dir"
+-- 
+2.14.3
+