Only use -fstack-protector-all if it is supported

2 files changed, 28 insertions, 0 deletions

diff --git a/debian/patches/conditional-stack-protector-all.patch b/debian/patches/conditional-stack-protector-all.patch
new file mode 100644
index 0000000..d58f7ee
--- /dev/null
+++ b/debian/patches/conditional-stack-protector-all.patch
@@ -0,0 +1,27 @@
+From: Colin Watson <cjwatson@debian.org>
+Date: Fri, 21 Feb 2020 23:23:49 +0000
+Subject: Only use -fstack-protector-all if it is supported
+
+This flag isn't available on all Debian ports.
+
+Last-Update: 2020-02-21
+---
+ CMakeLists.txt | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c7c5991..07ca5e1 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -114,7 +114,10 @@ else()
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wbad-function-cast")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors")
+-       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-all")
++       check_c_compiler_flag("-fstack-protector-all" HAVE_STACK_PROTECTOR_ALL)
++       if(HAVE_STACK_PROTECTOR_ALL)
++               set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-all")
++       endif()
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
+ 
+        set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g2")
diff --git a/debian/patches/series b/debian/patches/series
new file mode 100644
index 0000000..d5d2276
--- /dev/null
+++ b/debian/patches/series
@@ -0,0 +1 @@
+conditional-stack-protector-all.patch