build: Port to meson

And remove the autotools. Faster, cleaner.

https://bugs.freedesktop.org/show_bug.cgi?id=106514

doc/Makefile.am

@@ -1,10 +0,0 @@
-EXTRA_DIST = doxygen.cfg
-
-docs: doxygen.cfg
-	doxygen $^
-
-docs-upload: docs
-	ln -s html api
-	ncftpput -f ~/.ncftp/reactivated -m -R httpdocs/fprint api/
-	rm -f api
-

doc/doxygen.cfg.in

@@ -477,7 +477,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories 
 # with spaces.
 
-INPUT                  = ../libfprint
+INPUT                  = "@SRCDIR@"
 
 # This tag can be used to specify the character encoding of the source files that 
 # doxygen parses. Internally doxygen uses the UTF-8 encoding, which is also the default 
@@ -672,7 +672,7 @@ GENERATE_HTML          = YES
 # If a relative path is entered the value of OUTPUT_DIRECTORY will be 
 # put in front of it. If left blank `html' will be used as the default path.
 
-HTML_OUTPUT            = html
+HTML_OUTPUT            = "@BUILDDIR@/html"
 
 # The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
 # each generated HTML page (for example: .htm,.php,.asp). If it is left blank 

doc/meson.build

@@ -0,0 +1,17 @@
+cdata = configuration_data()
+cdata.set('SRCDIR', join_paths(meson.source_root(), 'libfprint'))
+cdata.set('BUILDDIR', join_paths(meson.build_root(), 'doc'))
+
+cfg = configure_file(input: 'doxygen.cfg.in',
+                     output: 'doxygen.cfg',
+                     configuration: cdata,
+                     install: false)
+
+doxygen = find_program('doxygen')
+datadir = join_paths(get_option('datadir'), 'doc', 'libfprint-devel')
+custom_target('docs',
+              input: cfg,
+              output: 'html',
+              command: [ doxygen, '@INPUT@' ],
+              install: true,
+              install_dir: datadir)