The -Werror=3Dpoison-system-directories argument was being passed to runs
where _just_ CPP was being invoked, so it wasn't passed to runs which
also compile. Add the options to cc1_options so that compile runs also
have fatal poisoning errors.

Signed-off-by: Ross Burton <ross.burton@...>
---
.../gcc/0002-gcc-poison-system-directories.patch | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/meta/recipes-devtools/gcc/gcc/0002-gcc-poison-system-directo=
ries.patch b/meta/recipes-devtools/gcc/gcc/0002-gcc-poison-system-directo=
ries.patch
index 5a51ae7d960..bfec4477c1e 100644
--- a/meta/recipes-devtools/gcc/gcc/0002-gcc-poison-system-directories.pa=
tch
+++ b/meta/recipes-devtools/gcc/gcc/0002-gcc-poison-system-directories.pa=
tch
@@ -185,6 +185,19 @@ index bb07cc244e3..ce161d3c853 100644
=20
/* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
=20
+@@ -1265,7 +1270,11 @@ static const char *cc1_options =3D
+ %{coverage:-fprofile-arcs -ftest-coverage}\
+ %{fprofile-arcs|fprofile-generate*|coverage:\
+ %{!fprofile-update=3Dsingle:\
+- %{pthread:-fprofile-update=3Dprefer-atomic}}}";
++ %{pthread:-fprofile-update=3Dprefer-atomic}}}"
++#ifdef POISON_BY_DEFAULT
++ " -Werror=3Dpoison-system-directories"
++#endif
++ ;
+
+ static const char *asm_options =3D
+ "%{-target-help:%:print-asm-header()} "
diff --git a/gcc/incpath.cc b/gcc/incpath.cc
index bd2a97938eb..c80f100f476 100644
--- a/gcc/incpath.cc
--=20
2.34.1