Packages and Build System
Pacman packages are compressed tar archives containing metadata and a directory structure with files. Packages are built with makepkg using Bash build scripts known as PKGBUILDs. The following is a PKGBUILD for the patch package included in the pacman documentation as an example:
pkgname=patch pkgver=2.5.4 pkgrel=3 pkgdesc="A utility to apply patch files to original sources" arch=('i686' 'x86_64') url="http://www.gnu.org/software/patch/patch.html" license=('GPL') groups=('base-devel') depends=('glibc' 'ed') source=(ftp://ftp.gnu.org/gnu/$pkgname/$pkgname-$pkgver.tar.gz) md5sums=('ee5ae84d115f051d87fcaaef3b4ae782') build { cd "$srcdir"/$pkgname-$pkgver ./configure --prefix=/usr make } package { cd "$srcdir"/$pkgname-$pkgver make prefix="$pkgdir"/usr install }Read more about this topic: Pacman (package Manager)
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