diff --git a/patches/5.20/fix-pack-longdouble.patch b/patches/5.20/fix-pack-longdouble.patch
new file mode 100644
index 0000000..403839b
--- /dev/null
+++ b/patches/5.20/fix-pack-longdouble.patch
@@ -0,0 +1,42 @@
+From a2db6c92fc2880ba1f288b6c4599a779997dd4e7 Mon Sep 17 00:00:00 2001
+From: Tony Cook <tony@develop-help.com>
+Date: Thu, 9 Apr 2015 15:45:16 +1000
+Subject: [PATCH] [perl #123971] fix long double pack padding on newer GCC
+
+---
+ pp_pack.c |   11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/pp_pack.c b/pp_pack.c
+index 06adade..1d732a8 100644
+--- a/pp_pack.c
++++ b/pp_pack.c
+@@ -2709,6 +2709,12 @@ S_pack_rec(pTHX_ SV *cat, tempsym_t* symptr, SV **beglist, SV **endlist )
+ #ifdef __GNUC__
+ 		/* to work round a gcc/x86 bug; don't use SvNV */
+ 		anv.nv = sv_2nv(fromstr);
++#    if defined(LONGDOUBLE_X86_80_BIT) && defined(USE_LONG_DOUBLE) \
++         && LONG_DOUBLESIZE > 10
++                /* GCC sometimes overwrites the padding in the
++                   assignment above */
++                Zero(anv.bytes+10, sizeof(anv.bytes) - 10, U8);
++#    endif
+ #else
+ 		anv.nv = SvNV(fromstr);
+ #endif
+@@ -2726,6 +2732,11 @@ S_pack_rec(pTHX_ SV *cat, tempsym_t* symptr, SV **beglist, SV **endlist )
+ #  ifdef __GNUC__
+ 		/* to work round a gcc/x86 bug; don't use SvNV */
+ 		aldouble.ld = (long double)sv_2nv(fromstr);
++#    if defined(LONGDOUBLE_X86_80_BIT) && LONG_DOUBLESIZE > 10
++                /* GCC sometimes overwrites the padding in the
++                   assignment above */
++                Zero(aldouble.bytes+10, sizeof(aldouble.bytes) - 10, U8);
++#    endif
+ #  else
+ 		aldouble.ld = (long double)SvNV(fromstr);
+ #  endif
+-- 
+1.7.10.4
+
+
diff --git a/patches/0001-time-HiRes-don-t-truncate-nanosec-utime.patch b/patches/5.28/0001-time-HiRes-don-t-truncate-nanosec-utime.patch
similarity index 100%
rename from patches/0001-time-HiRes-don-t-truncate-nanosec-utime.patch
rename to patches/5.28/0001-time-HiRes-don-t-truncate-nanosec-utime.patch