[gobject-introspection] ci: switch to a non-srcdir build with autotools

[Christoph Reiter <creiter src gnome org>]

commit 474cf8188013c791adf8165288f1c22f1633773a
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Fri Dec 14 17:06:39 2018 +0100

    ci: switch to a non-srcdir build with autotools
    
    It's easy to break non-srcdir builds so make sure we catch it in CI

 .gitlab-ci.yml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 92ddbf59..0ad627db 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -41,7 +41,9 @@ fedora-x86_64-autotools:
     CFLAGS: "-Werror"
   script:
     - sed -i 's|\[glib-2\.0 >= [0-9.]*\]|[glib-2.0 >= 1.0]|' configure.ac
-    - ./autogen.sh --with-python=python3 --enable-gtk-doc --enable-doctool
+    - mkdir _build
+    - cd _build
+    - ../autogen.sh --with-python=python3 --enable-gtk-doc --enable-doctool
     - make -j4
     - make check
     - python3 -m pip install --user flake8
@@ -50,7 +52,10 @@ fedora-x86_64-autotools:
     when: on_failure
     name: "gi-_${CI_COMMIT_REF_NAME}"
     paths:
-      - "${CI_PROJECT_DIR}/*/scanner/test-suite.log"
+      - "_build/*.log"
+      - "_build/*/*.log"
+      - "_build/*/*/*.log"
+      - "_build/*/*/*/*.log"
 
 msys2-mingw32-meson:
   stage: build