gitlab-ci: Do not use the standard container images from gitlab

Currently all pipelines of the gitlab CI are failing, except for the
"build-user" pipeline. There is an issue with the default container
image (likely Debian stable) where they imported something bad in one
of the system headers:

 /usr/include/linux/swab.h: In function '__swab':
 /builds/huth/qemu/include/qemu/bitops.h:20:34: error: "sizeof" is not
  defined, evaluates to 0 [-Werror=undef]
 #define BITS_PER_LONG           (sizeof (unsigned long) * BITS_PER_BYTE)

We could maybe work-around this issue or wait for the default containers
to get fixed, but considering that we use Ubuntu (and thus Debian-style)
CI in Travis already to a very large extent, we should consider to use
some RPM-based distros in our gitlab CI instead. Thus let's change the
failing pipelines to use Fedora and CentOS (and also one Ubuntu 19.10,
since 20.04 is broken, too) now.

Message-Id: <20200525131823.715-6-thuth@redhat.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

.gitlab-ci.yml

@@ -5,9 +5,17 @@ include:
 .update_apt_template: &before_script_apt
  before_script:
   - apt-get update -qq
-  - apt-get install -y -qq libglib2.0-dev libpixman-1-dev genisoimage
+  - apt-get install -y -qq git gcc libglib2.0-dev libpixman-1-dev make
+        genisoimage
+
+.update_dnf_template: &before_script_dnf
+ before_script:
+  - dnf update -y
+  - dnf install -y bzip2 diffutils gcc git genisoimage findutils glib2-devel
+        make python3 perl-podlators perl-Test-Harness pixman-devel zlib-devel
 
 build-system1:
+ image: ubuntu:19.10
  <<: *before_script_apt
  script:
  - apt-get install -y -qq libgtk-3-dev libvte-dev nettle-dev libcacard-dev
@@ -21,11 +29,12 @@ build-system1:
  - make -j2 check
 
 build-system2:
- <<: *before_script_apt
+ image: fedora:latest
+ <<: *before_script_dnf
  script:
- - apt-get install -y -qq libsdl2-dev libgcrypt-dev libbrlapi-dev libaio-dev
-      libfdt-dev liblzo2-dev librdmacm-dev libibverbs-dev libibumad-dev
-      libzstd-dev
+ - yum install -y SDL2-devel libgcrypt-devel brlapi-devel libaio-devel
+       libfdt-devel lzo-devel librdmacm-devel libibverbs-devel libibumad-devel
+       libzstd-devel
  - mkdir build
  - cd build
  - ../configure --enable-werror --target-list="tricore-softmmu unicore32-softmmu
@@ -35,7 +44,8 @@ build-system2:
  - make -j2 check
 
 build-disabled:
- <<: *before_script_apt
+ image: fedora:latest
+ <<: *before_script_dnf
  script:
  - mkdir build
  - cd build
@@ -50,9 +60,10 @@ build-disabled:
  - make -j2 check-qtest SPEED=slow
 
 build-tcg-disabled:
- <<: *before_script_apt
+ image: centos:8
+ <<: *before_script_dnf
  script:
- - apt-get install -y -qq clang libgtk-3-dev libusb-dev
+ - dnf install -y clang gtk3-devel libusbx-devel libgcrypt-devel
  - mkdir build
  - cd build
  - ../configure --cc=clang --enable-werror --disable-tcg --audio-drv-list=""
@@ -79,10 +90,11 @@ build-user:
  - make run-tcg-tests-i386-linux-user run-tcg-tests-x86_64-linux-user
 
 build-clang:
- <<: *before_script_apt
+ image: fedora:latest
+ <<: *before_script_dnf
  script:
- - apt-get install -y -qq clang libsdl2-dev libattr1-dev libcap-ng-dev
-      xfslibs-dev libiscsi-dev libnfs-dev libseccomp-dev gnutls-dev librbd-dev
+ - yum install -y clang SDL2-devel libattr-devel libcap-ng-devel xfsprogs-devel
+       libiscsi-devel libnfs-devel libseccomp-devel gnutls-devel librbd-devel
  - mkdir build
  - cd build
  - ../configure --cc=clang --cxx=clang++ --enable-werror
@@ -92,7 +104,8 @@ build-clang:
  - make -j2 check
 
 build-tci:
- <<: *before_script_apt
+ image: centos:8
+ <<: *before_script_dnf
  script:
  - TARGETS="aarch64 alpha arm hppa m68k microblaze moxie ppc64 s390x x86_64"
  - mkdir build