applied patches from debian package

PKGBUILD

@@ -1,22 +1,35 @@
 # Maintainer: lod <aur@cyber-anlage.de>
 pkgname=libnss-extrausers
 pkgver=0.6
-pkgrel=3
+pkgrel=4
 pkgdesc="nss module to have an additional passwd, shadow and group file"
 arch=('any')
 url="https://packages.debian.org/de/source/sid/libnss-extrausers"
 license=('GPL')
 makedepends=('gcc')
 conflicts=('libnss-extrausers-git')
-source=(http://http.debian.net/debian/pool/main/libn/$pkgname/${pkgname}_$pkgver.orig.tar.gz)
-sha256sums=('6a37c3cf6ff5dfd46b1b3127e1226404e43185fa73cd40e8144d5f7736eee9f0')
+source=(http://http.debian.net/debian/pool/main/libn/$pkgname/${pkgname}_$pkgver.orig.tar.gz
+        http://deb.debian.org/debian/pool/main/libn/$pkgname/${pkgname}_$pkgver-4.debian.tar.xz)
+sha256sums=('6a37c3cf6ff5dfd46b1b3127e1226404e43185fa73cd40e8144d5f7736eee9f0'
+            '851aeea268c0212702b78b66f8f16be15c0eddc241c5bc2df41b0825f3a65a5b')
+
+prepare() {
+  cd ${pkgname}-${pkgver}
+
+  patch -Np1 -i ../debian/patches/0001-Bug-29915-CLO_EXEC.patch
+  patch -Np1 -i ../debian/patches/0002-Bug-29915-NSS-error-reporting.patch
+  patch -Np1 -i ../debian/patches/0003-Bug-29915-min-GID.patch
+  patch -Np1 -i ../debian/patches/0004-Bug-29915-fseek-thread-safety.patch
+  patch -Np1 -i ../debian/patches/0005-Bug-29915-strip-trailing-whitespace.patch
+  patch -Np1 -i ../debian/patches/0006-Bug-39775-Fix-setgrent.patch
+}     
 
 build() {
-  cd "$srcdir/$pkgname-$pkgver"
+  cd ${pkgname}-${pkgver}
   make
 }
 
 package() {
-  cd "$srcdir/$pkgname-$pkgver"
+  cd ${pkgname}-${pkgver}
   make DESTDIR="$pkgdir" install
 }