Add Libiconv v1.15

Libiconv/build_tarballs.jl

@@ -0,0 +1,34 @@
+using BinaryBuilder
+
+# Collection of sources required to build Gettext
+name = "Libiconv"
+version = v"1.15"
+sources = [
+    "https://ftp.gnu.org/pub/gnu/libiconv/libiconv-$(version.major).$(version.minor).tar.gz" =>
+    "ccf536620a45458d26ba83887a983b96827001e92a13847b45e4925cc8913178",
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir/libiconv-*/
+./configure --prefix=$prefix --host=$target
+make -j${nproc}
+make install
+"""
+
+# These are the platforms we will build for by default, unless further
+# platforms are passed in on the command line
+platforms = supported_platforms()
+
+# The products that we will ensure are always built
+products(prefix) = [
+    LibraryProduct(prefix, "libiconv", :libiconv)
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = [
+]
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies)
+