Edit: I forgot I dropped a message to you before and completely missed the pull request you created for this! I'll leave the comment for the impatient, sorry for the noise.

Since two days this build is broken due to changes in the Makefile. I've created an issue upstream. In the meantime you can patch the PKGBUILD and add a patch for the Makefile (not sure how fast upstream fixes this):

diff --git a/PKGBUILD b/PKGBUILD
index 0078756..f31392c 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -6,7 +6,7 @@

 _srcname=dash-to-dock
 pkgname=gnome-shell-extension-dash-to-dock-git
-pkgver=102.r3.gf29b27e0
+pkgver=105.r15.g2bc44a6a
 pkgrel=1
 pkgdesc="move the dash out of the overview transforming it in a dock"
 arch=('any')
@@ -17,8 +17,10 @@ depends=('gnome-shell')
 makedepends=('git' 'sassc')
 conflicts=('gnome-shell-extension-dash-to-dock')
 provides=('gnome-shell-extension-dash-to-dock')
-source=("git+https://github.com/micheleg/${_srcname}.git")
-sha256sums=('SKIP')
+source=("git+https://github.com/micheleg/${_srcname}.git"
+        "fix-install-schemas.patch")
+sha256sums=('SKIP'
+            'SKIP')

 pkgver() {
   cd "${_srcname}"
@@ -27,6 +29,11 @@ pkgver() {
 printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
 }

+prepare() {
+  cd "${_srcname}"
+  patch -Np1 -i "${srcdir}/fix-install-schemas.patch"
+}
+
 build() {
   export SASS=sassc
   cd "${_srcname}"

And fix-install-schemas.patch:

--- a/Makefile
+++ b/Makefile
@@ -106,8 +106,9 @@
    mkdir -p $(SHARE_PREFIX)/glib-2.0/schemas $(SHARE_PREFIX)/locale
    cp -r ./schemas/*.gschema.xml $(SHARE_PREFIX)/glib-2.0/schemas
    cp -r ./_build/locale/* $(SHARE_PREFIX)/locale
-endif
+else
    cp schemas/gschemas.compiled $(INSTALLBASE)/$(INSTALLNAME)/schemas/
+endif
    -rm -fR _build
    echo done

Note: I'm not sure what upstream intended to do with this change; the above patch at least makes sure the schemas directory is created, but upstream might fix this differently.

I just got a build error about a schema/ dir? location:

cp: cannot create regular file '/tmp/makepkg.builddir/gnome-shell-extension-dash-to-dock-git/pkg/gnome-shell-extension-dash-to-dock-git/usr/share/gnome-shell/extensions/dash-to-dock@micxgx.gmail.com/schemas/': Not a directory
make: *** [Makefile:108: install-local] Error 1
==> ERROR: A failure occurred in package().
    Aborting...

I installed this but I don't see this in my extensions. What am doing something wrong?

@malacology I can't find any documentation on this requirement. Please point me to it? Further, isn't it assumed anyone using the AUR has it installed per default, given it's included in the base-devel package group?

make should be added into dependencies

@ewout, Oh sorry, right, someone else created the merge request.

Yes, an aur maintainer will accept or reject the request.