Add cmake-default script

README.md

@@ -67,7 +67,32 @@ limitations/properties:
 * These are only installed for the user that ran the script.
 * The thing pointed to by each symlink can change out from under you.
 
+## Alternatives
+
+I may have finally found a more "correct" alternative to this where I
+actually used `~/usr/local` as my install prefix. I always found it
+annoying that I couldn't change an install prefix after waiting for
+the entire `make` command to run. The default prefix is always
+`/usr/local` which requires root privileges to install into. However,
+there is apparently the [env variable `DESTDIR`][1] which will at
+least allow you to add a prefix in front of the default prefix. It
+won't "change" it, so you're always stuck with `/usr/local` unless you
+actually set the `--prefix` flag before building. But this does let
+you do `asdf/usr/local`.
+
+```sh
+make DESTDIR=$HOME install
+```
+
+```sh
+cmake DESTDIR=$HOME --install ./
+```
+
 # Copyright
 
 I think this script is too small to reasonably apply copyright
 to. It is in the Public Domain.
+
+
+[1]: https://cmake.org/cmake/help/latest/envvar/DESTDIR.html#envvar:DESTDIR
+[2]:

cmake-default.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env sh
+
+set -o errexit
+
+mkdir build
+cd build
+
+# Source common settings
+. $HOME/usr/local/share/config.site
+
+# Configure
+cmake .. -G Ninja \
+	  -DCMAKE_BUILD_TYPE=Release \
+	  -DCMAKE_INSTALL_PREFIX=$HOME/usr/local \
+	  $@
+
+# Build
+ninja