[source] grub2: disable 'check-macro-version' build rule in 'po' build

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/77812cdfec6258c3a4db9256419e9dbdcaf8d7ec

commit 77812cdfec6258c3a4db9256419e9dbdcaf8d7ec
Author: Alexandru Ardelean <ardeleanalex at gmail.com>
AuthorDate: Mon Nov 21 17:39:20 2016 +0200

    grub2: disable 'check-macro-version' build rule in 'po' build
    
    This seems to occur when gettext-full is built on the host-side
    and the autoreconf stuff re-generates some of the build files,
    except for the po/Makefile.in.in
    
    Signed-off-by: Alexandru Ardelean <ardeleanalex at gmail.com>
---
 .../patches/101-disable-gettext-check-macro-version.patch   | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/package/boot/grub2/patches/101-disable-gettext-check-macro-version.patch b/package/boot/grub2/patches/101-disable-gettext-check-macro-version.patch
new file mode 100644
index 0000000..4b850ed
--- /dev/null
+++ b/package/boot/grub2/patches/101-disable-gettext-check-macro-version.patch
@@ -0,0 +1,13 @@
+diff --git a/po/Makefile.in.in b/po/Makefile.in.in
+index 3619458..060e0db 100644
+--- a/po/Makefile.in.in
++++ b/po/Makefile.in.in
+@@ -97,7 +97,7 @@ CATALOGS = @CATALOGS@
+ 	mv t-$@ $@
+ 
+ 
+-all: check-macro-version all- at USE_NLS@
++all: all- at USE_NLS@
+ 
+ all-yes: stamp-po
+ all-no: