meson: build Linux-PAM using meson

On my non-representative hardware, the full build using autotools
(./autogen.sh && CFLAGS=-O2 ./configure && make -j`nproc` && make -j`nproc` install)
takes about 45 seconds.

On the same hardware, the full build using meson
(meson setup -Doptimization=2 dir && meson compile -C dir && meson install -C dir)
takes just about 7.5 seconds.

13 files changed, 271 insertions, 1 deletions

diff --git a/doc/.gitignore b/doc/.gitignore
index 589288a9..cbfabdd7 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -1,5 +1,5 @@
 pam.sgml
 MODULES-SGML
 /*/*.txt
-/*/html/
+/*/html/*.html
 custom-man.xsl
diff --git a/doc/adg/html/meson.build b/doc/adg/html/meson.build
new file mode 120000
index 00000000..d6d90eaa
--- /dev/null
+++ b/doc/adg/html/meson.build
@@ -0,0 +1 @@
+../../guide-html-meson.build
\ No newline at end of file
diff --git a/doc/adg/meson.build b/doc/adg/meson.build
new file mode 120000
index 00000000..2e19d830
--- /dev/null
+++ b/doc/adg/meson.build
@@ -0,0 +1 @@
+../guide-meson.build
\ No newline at end of file
diff --git a/doc/guide-html-meson.build b/doc/guide-html-meson.build
new file mode 100644
index 00000000..e5c90812
--- /dev/null
+++ b/doc/guide-html-meson.build
@@ -0,0 +1,32 @@
+# -*- mode: meson -*-
+
+html = custom_target(
+  input: xml,
+  output: name + '.html',
+  command: [
+    prog_xsltproc,
+    '--nonet',
+    '--xinclude',
+    '--stringparam', 'base.dir', meson.current_build_dir(),
+    '--stringparam', 'root.filename', name,
+    '--stringparam', 'use.id.as.filename', '1',
+    '--stringparam', 'chunk.first.sections', '1',
+    '--stringparam', 'section.autolabel', '1',
+    '--stringparam', 'section.label.includes.component.label', '1',
+    '--stringparam', 'toc.max.depth', toc_max_depth,
+    '--stringparam', 'chunker.output.encoding', 'UTF-8',
+    html_stylesheet,
+    '@INPUT@',
+  ],
+  install: true,
+  install_dir: htmldir,
+  install_tag: 'doc',
+)
+
+meson.add_install_script(
+  install_html,
+  meson.current_build_dir(),
+  htmldir,
+  html,
+  install_tag: 'doc',
+)
diff --git a/doc/guide-meson.build b/doc/guide-meson.build
new file mode 100644
index 00000000..e29d16e2
--- /dev/null
+++ b/doc/guide-meson.build
@@ -0,0 +1,90 @@
+# -*- mode: meson -*-
+
+guide = fs.name(meson.current_source_dir()).to_upper()
+name = 'Linux-PAM_' + guide
+
+xml = files(name + '.xml')
+
+if guide == 'SAG'
+  toc_max_depth = '2'
+else
+  toc_max_depth = '3'
+endif
+
+
+run_command(
+  [prog_xmllint,
+   '--noent',
+   '--nonet',
+   '--noout',
+   '--xinclude',
+   '--relaxng', docbook_rng,
+   xml],
+  check: true,
+)
+
+
+html = custom_target(
+  input: xml,
+  output: name + '.html',
+  command: [
+    prog_xsltproc,
+    '-o', '@OUTPUT@',
+    '--nonet',
+    '--xinclude',
+    '--stringparam', 'generate.toc', 'book toc',
+    '--stringparam', 'section.autolabel', '1',
+    '--stringparam', 'section.label.includes.component.label', '1',
+    '--stringparam', 'toc.max.depth', toc_max_depth,
+    txt_stylesheet,
+    '@INPUT@',
+  ],
+)
+
+custom_target(
+  input: html,
+  output: name + '.txt',
+  command: [
+    redir_exe,
+    '@INPUT@',
+    '@OUTPUT@',
+    browser,
+  ],
+  install: true,
+  install_dir: docdir,
+  install_tag: 'doc',
+)
+
+
+fop = custom_target(
+  input: xml,
+  output: name + '.fop',
+  command: [
+    prog_xsltproc,
+    '-o', '@OUTPUT@',
+    '--nonet',
+    '--xinclude',
+    '--stringparam', 'generate.toc', 'book toc',
+    '--stringparam', 'section.autolabel', '1',
+    '--stringparam', 'section.label.includes.component.label', '1',
+    '--stringparam', 'toc.max.depth', toc_max_depth,
+    pdf_stylesheet,
+    '@INPUT@',
+  ],
+)
+
+custom_target(
+  input: fop,
+  output: name + '.pdf',
+  command: [
+    prog_fop,
+    '@INPUT@',
+    '@OUTPUT@',
+  ],
+  install: true,
+  install_dir: pdfdir,
+  install_tag: 'doc',
+)
+
+
+subdir('html')
diff --git a/doc/install-html.sh b/doc/install-html.sh
new file mode 100755
index 00000000..884fc27c
--- /dev/null
+++ b/doc/install-html.sh
@@ -0,0 +1,7 @@
+#!/bin/sh -eu
+
+cd "$1"; shift
+MESON_INSTALL_DESTDIR=${MESON_INSTALL_DESTDIR_PREFIX%$MESON_INSTALL_PREFIX}
+dest="$MESON_INSTALL_DESTDIR$1"; shift
+
+install -p -m644 -t "$dest" -- *.html
diff --git a/doc/man/meson.build b/doc/man/meson.build
new file mode 100644
index 00000000..b90b1578
--- /dev/null
+++ b/doc/man/meson.build
@@ -0,0 +1,67 @@
+foreach man: [['misc_conv.3', []],
+              ['pam.3', []],
+              ['pam_acct_mgmt.3', []],
+              ['pam_authenticate.3', []],
+              ['pam_chauthtok.3', []],
+              ['pam_close_session.3', []],
+              ['pam_conv.3', []],
+              ['pam_end.3', []],
+              ['pam_error.3', ['pam_verror.3']],
+              ['pam_fail_delay.3', []],
+              ['pam_get_authtok.3', ['pam_get_authtok_noverify.3', 'pam_get_authtok_verify.3']],
+              ['pam_get_data.3', []],
+              ['pam_get_item.3', []],
+              ['pam_get_user.3', []],
+              ['pam_getenv.3', []],
+              ['pam_getenvlist.3', []],
+              ['pam_info.3', ['pam_vinfo.3']],
+              ['pam_misc_drop_env.3', []],
+              ['pam_misc_paste_env.3', []],
+              ['pam_misc_setenv.3', []],
+              ['pam_open_session.3', []],
+              ['pam_prompt.3', ['pam_vprompt.3']],
+              ['pam_putenv.3', []],
+              ['pam_set_data.3', []],
+              ['pam_set_item.3', []],
+              ['pam_setcred.3', []],
+              ['pam_sm_acct_mgmt.3', []],
+              ['pam_sm_authenticate.3', []],
+              ['pam_sm_chauthtok.3', []],
+              ['pam_sm_close_session.3', []],
+              ['pam_sm_open_session.3', []],
+              ['pam_sm_setcred.3', []],
+              ['pam_start.3', []],
+              ['pam_strerror.3', []],
+              ['pam_syslog.3', ['pam_vsyslog.3']],
+              ['pam_xauth_data.3', []],
+              ['pam.conf.5', ['pam.d.5']],
+              ['pam.8', ['PAM.8']],
+             ]
+  xml = man[0] + '.xml'
+
+  run_command([prog_xmllint,
+               '--nonet',
+               '--noout',
+               '--xinclude',
+               '--relaxng', docbook_rng,
+               xml],
+              check: true)
+
+  custom_target(man[0],
+    input: xml,
+    output: man,
+    depends: custom_man_xsl,
+    command: [prog_xsltproc,
+              '-o', '@OUTPUT0@',
+              '--nonet',
+              '--xinclude',
+              '--path', meson.current_source_dir(),
+              stringparam_vendordir,
+              stringparam_profileconditions,
+              custom_man_xsl,
+              '@INPUT@'],
+    install: true,
+    install_dir: mandir / 'man' + man[0].substring(-1),
+    install_tag: 'man',
+  )
+endforeach
diff --git a/doc/meson.build b/doc/meson.build
new file mode 100644
index 00000000..afe15851
--- /dev/null
+++ b/doc/meson.build
@@ -0,0 +1,26 @@
+custom_man_xsl = custom_target(
+  'custom-man.xsl',
+  input: 'custom-man.xsl.in',
+  output: ['custom-man.xsl'],
+  command: [
+    redir_exe,
+    '@INPUT@',
+    '@OUTPUT@',
+    'sed',
+    's+MAN_STYLESHEET+' + man_stylesheet + '+g'
+  ]
+)
+
+install_data(
+  'index.html',
+  install_dir: htmldir,
+  install_tag: 'doc',
+)
+
+install_html = files('install-html.sh')
+
+subdir('man')
+subdir('specs')
+subdir('sag')
+subdir('adg')
+subdir('mwg')
diff --git a/doc/mwg/html/meson.build b/doc/mwg/html/meson.build
new file mode 120000
index 00000000..d6d90eaa
--- /dev/null
+++ b/doc/mwg/html/meson.build
@@ -0,0 +1 @@
+../../guide-html-meson.build
\ No newline at end of file
diff --git a/doc/mwg/meson.build b/doc/mwg/meson.build
new file mode 120000
index 00000000..2e19d830
--- /dev/null
+++ b/doc/mwg/meson.build
@@ -0,0 +1 @@
+../guide-meson.build
\ No newline at end of file
diff --git a/doc/sag/html/meson.build b/doc/sag/html/meson.build
new file mode 120000
index 00000000..d6d90eaa
--- /dev/null
+++ b/doc/sag/html/meson.build
@@ -0,0 +1 @@
+../../guide-html-meson.build
\ No newline at end of file
diff --git a/doc/sag/meson.build b/doc/sag/meson.build
new file mode 120000
index 00000000..2e19d830
--- /dev/null
+++ b/doc/sag/meson.build
@@ -0,0 +1 @@
+../guide-meson.build
\ No newline at end of file
diff --git a/doc/specs/meson.build b/doc/specs/meson.build
new file mode 100644
index 00000000..4ddeef84
--- /dev/null
+++ b/doc/specs/meson.build
@@ -0,0 +1,42 @@
+parse_y = custom_target(
+  'parse_y.[ch]',
+  input: 'parse_y.y',
+  output: ['parse_y.c', 'parse_y.h'],
+  command: yacc_cmd,
+)
+
+parse_l = custom_target(
+  'parse_l.c',
+  input: 'parse_l.l',
+  output: 'parse_l.c',
+  depends: parse_y,
+  command: [prog_flex, '-o', '@OUTPUT@', '@INPUT@'],
+)
+
+padout = executable(
+  'padout',
+  sources: [parse_l, parse_y],
+  include_directories: [libpam_inc],
+  c_args: [
+    '-Wno-unused-function',
+    '-Wno-sign-compare',
+  ],
+  link_args: exe_link_args,
+)
+
+custom_target(
+  'draft-morgan-pam-current.txt',
+  input: 'draft-morgan-pam.raw',
+  output: 'draft-morgan-pam-current.txt',
+  command: [redir_exe, '@INPUT@', '@OUTPUT@', padout],
+  depends: padout,
+  install: true,
+  install_dir: docdir,
+  install_tag: 'doc',
+)
+
+install_data(
+  'rfc86.0.txt',
+  install_dir: docdir,
+  install_tag: 'doc',
+)