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From 2c3ab079560664926189d5135b08eccc9797ab9e Mon Sep 17 00:00:00 2001
From: Susant Sahani <ssahani@vmware.com>
Date: Sat, 25 Jan 2020 11:30:08 +0100
Subject: [PATCH] efi: fix build.

```
ninja -C build
ninja: Entering directory `build'
[29/101] Generating systemd_boot.so with a custom command.
FAILED: src/boot/efi/systemd_boot.so
/usr/bin/ld -o src/boot/efi/systemd_boot.so -T /usr/lib64/gnuefi/elf_x64_efi.lds -shared -Bsymbolic -nostdlib -znocombreloc -L /usr/lib64 /usr/lib64/gnuefi/crt0-efi-x64.o src/boot/efi/disk.c.o src/boot/efi/graphics.c.o src/boot/efi/measure.c.o src/boot/efi/pe.c.o src/boot/efi/util.c.o src/boot/efi/boot.c.o src/boot/efi/console.c.o src/boot/efi/crc32.c.o src/boot/efi/random-seed.c.o src/boot/efi/sha256.c.o src/boot/efi/shim.c.o -lefi -lgnuefi /usr/lib/gcc/x86_64-redhat-linux/10/libgcc.a
/usr/bin/ld: src/boot/efi/graphics.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/pe.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/util.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/boot.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/console.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/random-seed.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
/usr/bin/ld: src/boot/efi/shim.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: multiple definition of `loader_guid'; src/boot/efi/disk.c.o:/home/sus/tt/systemd/build/../src/boot/efi/util.h:58: first defined here
[31/101] Generating stub.c.o with a custom command.
ninja: build stopped: subcommand failed.
make: *** [Makefile:2: all] Error 1

```
---
 src/boot/efi/util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/boot/efi/util.h b/src/boot/efi/util.h
index 8518dfde77e..b13f22476c6 100644
--- a/src/boot/efi/util.h
+++ b/src/boot/efi/util.h
@@ -55,7 +55,7 @@ static inline void FileHandleClosep(EFI_FILE_HANDLE *handle) {
         uefi_call_wrapper((*handle)->Close, 1, *handle);
 }
 
-const EFI_GUID loader_guid;
+extern const EFI_GUID loader_guid;
 
 #define UINTN_MAX (~(UINTN)0)
 #define INTN_MAX ((INTN)(UINTN_MAX>>1))