Skip tests that rely on the `amhello' tarball that comes with Automake.
That tarball's `configure' uses #!/bin/sh, but we can't easily patch it.

diff --git a/t/amhello-binpkg.sh b/t/amhello-binpkg.sh
index fa88cc6..d988cee 100755
--- a/t/amhello-binpkg.sh
+++ b/t/amhello-binpkg.sh
@@ -17,6 +17,7 @@
 # Test an example from the manual about the 'amhello' package:
 # using DESTDIR to build simple, no-frills binary packages.
 
+exit 77
 am_create_testdir=empty
 . ./defs || exit 1
 
diff --git a/t/amhello-cflags.sh b/t/amhello-cflags.sh
index 666011f..2a95e3c 100755
--- a/t/amhello-cflags.sh
+++ b/t/amhello-cflags.sh
@@ -18,6 +18,7 @@
 # using VPATH builds to configure the same package with different
 # options.
 
+exit 77
 am_create_testdir=empty
 required=gcc
 . ./defs || exit 1
diff --git a/t/amhello-cross-compile.sh b/t/amhello-cross-compile.sh
index 708abda..2ee4292 100755
--- a/t/amhello-cross-compile.sh
+++ b/t/amhello-cross-compile.sh
@@ -17,6 +17,7 @@
 # Test an example from the manual about the 'amhello' package:
 # cross-compiling a package from Linux/Unix to MinGW.
 
+exit 77
 am_create_testdir=empty
 required=i586-mingw32msvc-gcc
 . ./defs || exit 1
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<div class='path'>path: <a href='/guix/log/?id=8958b37eb8f8f443ac68e9b715f1d557dfdd7e5b'>root</a>/<a href='/guix/log/gnu?id=8958b37eb8f8f443ac68e9b715f1d557dfdd7e5b'>gnu</a>/<a href='/guix/log/gnu/installer?id=8958b37eb8f8f443ac68e9b715f1d557dfdd7e5b'>installer</a>/<a href='/guix/log/gnu/installer/connman.scm?id=8958b37eb8f8f443ac68e9b715f1d557dfdd7e5b'>connman.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/installer/connman.scm?id=8958b37eb8f8f443ac68e9b715f1d557dfdd7e5b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-05-29 11:44:49 +0200'>2019-05-29</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=694cb8dc62f59fb67799ad4908a6b12cf7cb49a3'>installer: Fix wifi menu crash with hidden SSIDs.</a><span class='msg-avail'>...<span class='msg-tooltip'>This fixes https://issues.guix.gnu.org/issue/35622.

* gnu/installer/connman.scm (&lt;service&gt;): Mention that name may be false.
* gnu/installer/newt/wifi.scm (wifi-services): Filter out wifi services
without name.

Co-authored by: Pierre Neidhardt &lt;mail@ambrevar.xyz&gt;
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2019-02-18 01:52:47 +0100'>2019-02-18</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=b83e4a93a2118513cdd2186d796729f0813264c0'>gnu: Fix some typos in the installer.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/connman.scm (connman-connect-with-auth): Fix typo in
documentation.
* gnu/installer/newt/keymap.scm (sort-variants): Likewise.
* gnu/installer/newt/page.scm (run-listbox-selection-page): Likewise.
* gnu/installer/parted.scm (mkpart): Likewise.
* gnu/installer/newt/utils.scm (destroy-form-and-pop): Likewise.
* gnu/installer/newt/wifi.scm (run-unknown-error-page): Fix typo.
(wifi-listbox-heigth): Rename to…
(wifi-listbox-height): …this, and adjust caller.
* gnu/installer/timezone.scm (locate-childrens): Rename to…
(locate-children): …this.  Adjust all callers.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-01-17 14:04:20 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/connman.scm?id=d0f3a672dcbdfefd3556b6a21985ff0e35eed3be'>gnu: Add graphical installer support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* configure.ac: Require that guile-newt is available.
* gnu/installer.scm: New file.
* gnu/installer/aux-files/logo.txt: New file.
* gnu/installer/build-installer.scm: New file.
* gnu/installer/connman.scm: New file.
* gnu/installer/keymap.scm: New file.
* gnu/installer/locale.scm: New file.
* gnu/installer/newt.scm: New file.
* gnu/installer/newt/ethernet.scm: New file.
* gnu/installer/newt/hostname.scm: New file.
* gnu/installer/newt/keymap.scm: New file.
* gnu/installer/newt/locale.scm: New file.
* gnu/installer/newt/menu.scm: New file.
* gnu/installer/newt/network.scm: New file.
* gnu/installer/newt/page.scm: New file.
* gnu/installer/newt/timezone.scm: New file.
* gnu/installer/newt/user.scm: New file.
* gnu/installer/newt/utils.scm: New file.
* gnu/installer/newt/welcome.scm: New file.
* gnu/installer/newt/wifi.scm: New file.
* gnu/installer/steps.scm: New file.
* gnu/installer/timezone.scm: New file.
* gnu/installer/utils.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add previous files.
* gnu/system.scm: Export %root-account.
* gnu/system/install.scm (%installation-services): Use kmscon instead of linux
VT for all tty.
(installation-os)[users]: Add the graphical installer as shell of the root
account.
[packages]: Add font related packages.
* po/guix/POTFILES.in: Add installer files.
</span></span></td><td>Mathieu Othacehe</td></tr>