--- /dev/null
+From 1a53d8f88a452847b25f9689f9a08dbcf82c86e4 Mon Sep 17 00:00:00 2001
+From: Esben Haabendal <esben@esben1.localdomain>
+Date: Fri, 15 Mar 2019 11:57:51 +0100
+Subject: [PATCH] Fix for problem with undeclared intptr_t type
+
+When building gnu-efi with old compilers with pre C90 compilers:
+
+In file included from gnu-efi-3.0.9/lib/../inc/efilib.h:25:0,
+ from gnu-efi-3.0.9/lib/lib.h:24,
+ from gnu-efi-3.0.9/lib/dpath.c:25:
+gnu-efi-3.0.9/lib/dpath.c: In function 'FileDevicePath':
+gnu-efi-3.0.9/lib/../inc/efilink.h:145:47: error: 'intptr_t' undeclared (first use in this function)
+ #define EFI_FIELD_OFFSET(TYPE,Field) ((UINTN)(intptr_t)(&(((TYPE *) 0)->Field)))
+
+Problem introduced with commit a46a62b12b58139c31d4288384808365c4053bf2
+(Fix some types gcc doesn't like).
+
+Avoid this by adding intptr_t (and uintptr_t) typedefs for builds that does
+not include stdint.h.
+
+Signed-off-by: Esben Haabendal <esben@esben1.localdomain>
+Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
+[Upstream status:
+https://sourceforge.net/p/gnu-efi/code/merge-requests/5]
+---
+ inc/aarch64/efibind.h | 2 ++
+ inc/arm/efibind.h | 2 ++
+ inc/ia32/efibind.h | 2 ++
+ inc/ia64/efibind.h | 2 ++
+ inc/mips64el/efibind.h | 2 ++
+ inc/x86_64/efibind.h | 2 ++
+ 6 files changed, 12 insertions(+)
+
+diff --git a/inc/aarch64/efibind.h b/inc/aarch64/efibind.h
+index bdaa523..3c8cf96 100644
+--- a/inc/aarch64/efibind.h
++++ b/inc/aarch64/efibind.h
+@@ -27,6 +27,8 @@ typedef unsigned short uint16_t;
+ typedef short int16_t;
+ typedef unsigned char uint8_t;
+ typedef signed char int8_t; // unqualified 'char' is unsigned on ARM
++typedef uint64_t uintptr_t;
++typedef int64_t intptr_t;
+
+ #else
+ #include <stdint.h>
+diff --git a/inc/arm/efibind.h b/inc/arm/efibind.h
+index 40a5a9c..7a22b9c 100644
+--- a/inc/arm/efibind.h
++++ b/inc/arm/efibind.h
+@@ -27,6 +27,8 @@ typedef unsigned short uint16_t;
+ typedef short int16_t;
+ typedef unsigned char uint8_t;
+ typedef signed char int8_t; // unqualified 'char' is unsigned on ARM
++typedef uint32_t uintptr_t;
++typedef int32_t intptr_t;
+
+ #else
+ #include <stdint.h>
+diff --git a/inc/ia32/efibind.h b/inc/ia32/efibind.h
+index 1b11f10..dd01385 100644
+--- a/inc/ia32/efibind.h
++++ b/inc/ia32/efibind.h
+@@ -75,6 +75,8 @@ Revision History
+ typedef unsigned char uint8_t;
+ typedef char int8_t;
+ #endif
++ typedef uint32_t uintptr_t;
++ typedef int32_t intptr_t;
+ #elif defined(__GNUC__)
+ #include <stdint.h>
+ #endif
+diff --git a/inc/ia64/efibind.h b/inc/ia64/efibind.h
+index b415461..b9b2e62 100644
+--- a/inc/ia64/efibind.h
++++ b/inc/ia64/efibind.h
+@@ -62,6 +62,8 @@ Revision History
+ typedef unsigned char uint8_t;
+ typedef char int8_t;
+ #endif
++ typedef uint64_t uintptr_t;
++ typedef int64_t intptr_t;
+ #elif defined(__GNUC__)
+ #include <stdint.h>
+ #endif
+diff --git a/inc/mips64el/efibind.h b/inc/mips64el/efibind.h
+index 4adbca3..32241e5 100644
+--- a/inc/mips64el/efibind.h
++++ b/inc/mips64el/efibind.h
+@@ -29,6 +29,8 @@ typedef unsigned short uint16_t;
+ typedef short int16_t;
+ typedef unsigned char uint8_t;
+ typedef signed char int8_t; // unqualified 'char' is unsigned on ARM
++typedef uint64_t uintptr_t;
++typedef int64_t intptr_t;
+
+ #else
+ #include <stdint.h>
+diff --git a/inc/x86_64/efibind.h b/inc/x86_64/efibind.h
+index 4309f9f..ae40595 100644
+--- a/inc/x86_64/efibind.h
++++ b/inc/x86_64/efibind.h
+@@ -84,6 +84,8 @@ Revision History
+ typedef unsigned char uint8_t;
+ typedef char int8_t;
+ #endif
++ typedef uint64_t uintptr_t;
++ typedef int64_t intptr_t;
+ #elif defined(__GNUC__)
+ #include <stdint.h>
+ #endif
+--
+2.17.1
+