Added arc and perl-file-libmagic

src/arc/.SRCINFO

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+pkgbase = arc
+	pkgdesc = Arc file archiver and compressor. Long since superceeded by zip/unzip but useful if have old .arc files need to unpack.
+	pkgver = 5.21p
+	pkgrel = 3
+	url = http://sourceforge.net/projects/arc
+	arch = i686
+	arch = x86_64
+	license = GPL
+	source = http://download.sourceforge.net/arc/arc-5.21p.tar.gz
+	sha1sums = e68e358b86a67c68e8a1cb95a840f380bfda3684
+
+pkgname = arc
+

src/arc/.gitignore

@@ -0,0 +1,4 @@
+*
+!.gitignore
+!.SRCINFO
+!PKGBUILD

src/arc/PKGBUILD

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+# Maintainer: Gustavo Alvarez <sl1pkn07@gmail.com>
+# Contributor: Diogo Leal <estranho@diogoleal.com>
+
+pkgname=arc
+pkgver=5.21p
+pkgrel=3
+pkgdesc="Arc file archiver and compressor. Long since superceeded by zip/unzip but useful if have old .arc files need to unpack."
+arch=('i686' 'x86_64')
+url='http://sourceforge.net/projects/arc'
+license=('GPL')
+source=("http://download.sourceforge.net/${pkgname}/${pkgname}-${pkgver}.tar.gz")
+sha1sums=('e68e358b86a67c68e8a1cb95a840f380bfda3684')
+
+
+build() {
+  make -C "${pkgname}-${pkgver}"
+}
+
+package() {
+  make -C "${pkgname}-${pkgver}" PREFIX=/usr DESTDIR="${pkgdir}" install
+}