Document how the Monero iOS library is built

apps/ios/Monero/toolchain/depends/packages/unbound.mk

@@ -0,0 +1,36 @@
+package=unbound
+$(package)_version=1.25.1
+$(package)_download_path=https://www.nlnetlabs.nl/downloads/$(package)/
+$(package)_file_name=$(package)-$($(package)_version).tar.gz
+$(package)_sha256_hash=0fe8b6277b0959cfd17562debac0aa5f71e0b02dc4ffa9c60271c583edab586f
+$(package)_dependencies=openssl expat
+$(package)_patches=disable-glibc-reallocarray.patch hardcode_config_date.patch
+
+
+define $(package)_set_vars
+  $(package)_config_opts=--disable-shared --enable-static --without-pyunbound --prefix=$(host_prefix)
+  $(package)_config_opts+=--with-libexpat=$(host_prefix) --with-ssl=$(host_prefix) --with-libevent=no
+  $(package)_config_opts+=--without-pythonmodule --disable-flto --with-pthreads --with-libunbound-only
+  $(package)_config_opts_linux=--with-pic
+  $(package)_config_opts_w64=--enable-static-exe --sysconfdir=/etc --prefix=$(host_prefix) --target=$(host_prefix)
+  $(package)_config_opts_x86_64_darwin=ac_cv_func_SHA384_Init=yes
+  $(package)_build_opts_mingw32=LDFLAGS="$($(package)_ldflags) -lpthread"
+  $(package)_cflags_mingw32+="-D_WIN32_WINNT=0x600"
+endef
+
+define $(package)_preprocess_cmds
+  rm doc/*.odp doc/*.pdf contrib/*.tar.gz contrib/*.tar.bz2 &&\
+  rm -rf testdata dnscrypt/testdata
+endef
+
+define $(package)_config_cmds
+  $($(package)_autoconf) ac_cv_func_getentropy=no
+endef
+
+define $(package)_build_cmds
+  $(MAKE) $($(package)_build_opts)
+endef
+
+define $(package)_stage_cmds
+  $(MAKE) DESTDIR=$($(package)_staging_dir) install
+endef