feat: initial commit

Code is from cxx.uclibc.org, modified by catty to implement c++17
features

INSTALL

@@ -0,0 +1,36 @@
+For those just beginning with the uClibc++ library, the steps to
+begin are fairly easy.
+
+1)  Find the location of the GNU libsupc++.a file on your computer.
+    It will likely be in a location like:
+    /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libsupc++.a
+    Make a note of this file path
+
+2)  Run 'make menuconfig' which will bring up a nifty ncurses-based
+    configuration dialog system.  This is similar to the Linux kernel
+    configuration system, and was ripped directly from uClibc.
+
+3)  Configure to fit your system.  Defaults will be good enough for
+    now.
+
+4)  Under 'Library Installation Options', put the path to libsupc++.a
+    in the appropriate location.
+
+5)  Save your configuration
+
+6)  Compile by typing 'make'
+
+7)  Install the library by typing 'make install'
+
+8)  If you want to use this library as a part of your working system
+    and you did not install the library to a directory in the library
+    search path, you can either add the installation directory to
+    the /etc/ld.so.conf file, or (preferred) make a symlink from
+    the libuClibc++.so symlink into a directory in your search path,
+    such as /usr/lib
+
+9)  Compile applications using the wrapper script provided in the bin
+    directory of the install path.  If you run into problems, please
+    let me know.
+
+10) Enjoy!