Add libsodium to the tree and build what's needed from source.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3859 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/libsodium/dist-build/osx.sh

@@ -0,0 +1,26 @@
+#! /bin/sh
+
+export PREFIX="$(pwd)/libsodium-osx"
+export MACOS_VERSION_MIN=${MACOS_VERSION_MIN-"10.10"}
+
+if [ -z "$LIBSODIUM_FULL_BUILD" ]; then
+  export LIBSODIUM_ENABLE_MINIMAL_FLAG="--enable-minimal"
+else
+  export LIBSODIUM_ENABLE_MINIMAL_FLAG=""
+fi
+
+NPROCESSORS=$(getconf NPROCESSORS_ONLN 2>/dev/null || getconf _NPROCESSORS_ONLN 2>/dev/null)
+PROCESSORS=${NPROCESSORS:-3}
+
+mkdir -p $PREFIX || exit 1
+
+export CFLAGS="-mmacosx-version-min=${MACOS_VERSION_MIN} -O2 -g"
+export LDFLAGS="-mmacosx-version-min=${MACOS_VERSION_MIN}"
+
+make distclean >/dev/null
+./configure ${LIBSODIUM_ENABLE_MINIMAL_FLAG} \
+  --prefix="$PREFIX" || exit 1
+make -j${PROCESSORS} check && make -j${PROCESSORS} install || exit 1
+
+# Cleanup
+make distclean >/dev/null