glib (and friends!) linux build fixes (#204)

* glib linux build fixes
* gobj-intr
* include symlink step when testing, in case a subsequent test requires it
* fix harfbuzz build

Co-authored-by: Max Howell <mxcl@me.com>

projects/harfbuzz.org/package.yml

@@ -28,6 +28,7 @@ build:
   env:
     ARGS:
       - --prefix={{prefix}}
+      - --libdir={{prefix}}/lib
       - --buildtype=release
       - -Dcairo=enabled
       - -Dcoretext=enabled
@@ -35,7 +36,7 @@ build:
       - -Dglib=enabled
       - -Dtests=disabled
     #FIXME or gir scanner fails
-    CC: clang
+    # CC: clang
 
 test:
   dependencies:

scripts/test.ts

@@ -32,6 +32,11 @@ async function test(self: Installation) {
   const yml = await pantry.getYAML(self.pkg).parse()
   const deps = await deps4(self.pkg)
   const installations = await prepare(deps)
+
+  // if we are testing multiple packages, they might not
+  // get linked when they're tested.
+  await link(self)
+
   const env = useShellEnv({ installations: [self, ...installations] })
 
   let text = undent`