mkosi: switch build to meson

For Fedora, the version is bumped to 26. In F25, ninja is still called ninja-build
(while the package with the rename is going through QA).

.mkosi/mkosi.arch

@@ -32,8 +32,6 @@ RootSize=2G
 Cache=/var/cache/pacman/pkg/
 BuildPackages=
         acl
-        autoconf
-        automake
         bzip2
         cryptsetup
         curl
@@ -58,7 +56,7 @@ BuildPackages=
         libxkbcommon
         libxslt
         lz4
-        make
+        meson
         pam
         pkgconfig
         python

.mkosi/mkosi.debian

@@ -32,8 +32,6 @@ RootSize=2G
 [Packages]
 BuildPackages=
         acl
-        autoconf
-        automake
         diffutils
         docbook-xml
         docbook-xsl
@@ -68,7 +66,7 @@ BuildPackages=
         libsmartcols-dev
         libtool
         libxkbcommon-dev
-        make
+        meson
         pkg-config
         python3
         python3-lxml

.mkosi/mkosi.fedora

@@ -20,7 +20,7 @@
 
 [Distribution]
 Distribution=fedora
-Release=25
+Release=26
 
 [Output]
 Format=raw_btrfs
@@ -32,8 +32,7 @@ RootSize=3G
 [Packages]
 BuildPackages=
         audit-libs-devel
-        autoconf
-        automake
+        meson
         bzip2-devel
         cryptsetup-devel
         dbus-devel
@@ -63,7 +62,6 @@ BuildPackages=
         libxkbcommon-devel
         libxslt
         lz4-devel
-        make
         pam-devel
         pkgconfig
         python3-devel

mkosi.build

@@ -20,11 +20,10 @@
 # This is a build script for OS image generation using mkosi (https://github.com/systemd/mkosi).
 # Simply invoke "mkosi" in the project directory to build an OS image.
 
-./autogen.sh c
-make -j `nproc`
-
-make check
-make install
+meson build
+ninja -C build all
+ninja -C build test
+ninja -C build install
 
 mkdir -p $DESTDIR/etc