texinfo: add gnulib workaround to fix build

texinfo/PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=('texinfo' 'info' 'texinfo-tex')
 pkgver=7.2
-pkgrel=1
+pkgrel=2
 pkgdesc="Utilities to work with and produce manuals, ASCII text, and on-line documentation from a single source file"
 arch=('i686' 'x86_64')
 url="https://www.gnu.org/software/texinfo/"
@@ -52,7 +52,8 @@ build() {
     --prefix=/usr \
     --without-libiconv-prefix \
     --without-libintl-prefix \
-    --enable-perl-xs
+    --enable-perl-xs \
+    gl_cv_clean_version_stddef=yes
 
   make
   make DESTDIR=${srcdir}/dest install