[Buildroot] [PATCH 1/1] package/systemd: fix build not adding stack protector library

[Norbert Lange <nolange79@gmail.com>]

the stack protector flag is added during compilation,
but not when linking. A compiler not defaulting to ssp
will complain about missing symbols

upstream PR #13599

Signed-off-by: Norbert Lange <nolange79@gmail.com>
---
 ...ompilers-with-default-stack-protecto.patch | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 package/systemd/0005-fix-build-with-compilers-with-default-stack-protecto.patch

diff --git a/package/systemd/0005-fix-build-with-compilers-with-default-stack-protecto.patch b/package/systemd/0005-fix-build-with-compilers-with-default-stack-protecto.patch
new file mode 100644
index 0000000000..d233df90da
--- /dev/null
+++ b/package/systemd/0005-fix-build-with-compilers-with-default-stack-protecto.patch
@@ -0,0 +1,31 @@
+From e028863a2ed4b380e12a79479fc7fc13d7b3214a Mon Sep 17 00:00:00 2001
+From: Norbert Lange <nolange79@gmail.com>
+Date: Thu, 19 Sep 2019 17:49:20 +0200
+Subject: [PATCH] fix build with compilers with default stack-protector enabled
+
+building systemd fails with a compiler that supports
+-fstack-protector but does not enable it by default.
+(will miss several __stack_chk_* symbols).
+
+fix this by also adding the switch during linking.
+
+Signed-off-by: Norbert Lange <nolange79@gmail.com>
+---
+ meson.build | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/meson.build b/meson.build
+index e5ceb1e..4fc7dfa 100644
+--- a/meson.build
++++ b/meson.build
+@@ -382,6 +382,7 @@ possible_cc_flags = [
+ possible_link_flags = [
+         '-Wl,-z,relro',
+         '-Wl,-z,now',
++        '-fstack-protector',
+ ]
+
+ if cc.get_id() == 'clang'
+--
+2.23.0
+
-- 
2.23.0