Convert build system to meson

Some notes about the new build systems:
- I don't fully understand the testing system, but I think I understood
  it well enough to implement an equivalent one.
- use_seccomp could be replaced by detecting seccomp support at runtime
  (without support, Linux returns -EINVAL in include/linux/seccomp.h)
- The fuzzing test is broken and seems to have been for a while (see
  commit 67f3ba64c91b5e1ac9fbbd0bc039fb8ca653cae1, it fails to fuzz on
  my machine)
- make-tarball.sh has been replaced with meson dist - hopefully this
  works. meson dist should also call seccomp-bpf.c to update
  seccomp-bpf.h

Signed-off-by: Arsen Arsenović <arsen@aarsen.me>
Signed-off-by: Sam James <sam@gentoo.org>

6 files changed, 44 insertions, 25 deletions

diff --git a/man/Makefile b/man/Makefile
deleted file mode 100644
index 6f1f185..0000000
--- a/man/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-all: man
-
-XMLTO_FLAGS_man = -x custom.xsl --skip-validation
-man pdf txt xhtml xhtml-nochunks:
-	@xmlto $@ $(XMLTO_FLAGS_$@) pax-utils.docbook || echo "If this failed, you probably need to emerge ~app-text/docbook-xml-dtd-4.4 app-text/xmlto dev-tex/xmltex"
-	@# scanelf.1 has funky indented lists ... hack it back
-	@sed -i.tmp 's:^[.]TP 4:.TP 2:' scanelf.1
-	@rm scanelf.1.tmp
-clean distclean:
-	rm -f *.1 *.html
-
-.PHONY: all clean distclean \
-        man pdf txt xhtml xhtml-nochunks
diff --git a/man/custom.xsl b/man/custom.xsl
index bf01b14..c1ab12d 100644
--- a/man/custom.xsl
+++ b/man/custom.xsl
@@ -12,8 +12,7 @@ xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
       <xsl:text>.sp -1&#10;</xsl:text>
       <xsl:text>.TP</xsl:text>
       <xsl:if test="not($list-indent = '')">
-        <xsl:text> </xsl:text>
-        <xsl:value-of select="$list-indent"/>
+        <xsl:text> 2</xsl:text>
       </xsl:if>
       <xsl:text>&#10;</xsl:text>
     </xsl:if>
diff --git a/man/fragment/date b/man/fragment/date
deleted file mode 100644
index e69de29..0000000
--- a/man/fragment/date
+++ /dev/null
diff --git a/man/fragment/version b/man/fragment/version
deleted file mode 100644
index 69ba922..0000000
--- a/man/fragment/version
+++ /dev/null
@@ -1 +0,0 @@
-<releaseinfo>git</releaseinfo>
diff --git a/man/meson.build b/man/meson.build
new file mode 100644
index 0000000..fc8d183
--- /dev/null
+++ b/man/meson.build
@@ -0,0 +1,37 @@
+xmlto = find_program('xmlto', required : get_option('build_manpages'))
+
+if not xmlto.found()
+  subdir_done()
+endif
+
+docbook_conf = configuration_data()
+docbook_conf.set('version', meson.project_version())
+docbook_conf.set('man_dir', meson.current_source_dir())
+
+book = configure_file(
+  input : 'pax-utils.docbook.in',
+  output : 'pax-utils.docbook',
+  configuration : docbook_conf
+)
+
+pages = [
+    'dumpelf.docbook', 'pspax.docbook', 'scanelf.docbook', 'scanmacho.docbook'
+]
+
+out_pages = []
+foreach page : pages
+  out_pages += page.replace('.docbook', '.1')
+endforeach
+
+custom_target('docbook_to_man',
+  command : [
+    xmlto, 'man', '-x', files('custom.xsl'), '--skip-validation', book,
+    '-o', meson.current_build_dir()
+  ],
+  input : [
+    'pax-utils.docbook.in', 'custom.xsl', 'fragment/reftail',
+  ] + pages,
+  output : out_pages,
+  install : true,
+  install_dir : get_option('mandir') / 'man1'
+)
diff --git a/man/pax-utils.docbook b/man/pax-utils.docbook.in
index 79e6c12..a8fd7df 100644
--- a/man/pax-utils.docbook
+++ b/man/pax-utils.docbook.in
@@ -2,16 +2,14 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.4//EN"
 	"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
 
-	<!ENTITY date SYSTEM "fragment/date">
-	<!ENTITY version SYSTEM "fragment/version">
-	<!ENTITY reftail SYSTEM "fragment/reftail">
+	<!ENTITY reftail SYSTEM "@man_dir@/fragment/reftail">
 
 	<!ENTITY project "pax-utils">
 
-	<!ENTITY dumpelf   SYSTEM   "dumpelf.docbook">
-	<!ENTITY pspax     SYSTEM     "pspax.docbook">
-	<!ENTITY scanelf   SYSTEM   "scanelf.docbook">
-	<!ENTITY scanmacho SYSTEM "scanmacho.docbook">
+	<!ENTITY dumpelf   SYSTEM   "@man_dir@/dumpelf.docbook">
+	<!ENTITY pspax     SYSTEM     "@man_dir@/pspax.docbook">
+	<!ENTITY scanelf   SYSTEM   "@man_dir@/scanelf.docbook">
+	<!ENTITY scanmacho SYSTEM "@man_dir@/scanmacho.docbook">
 ]>
 
 <book id="pax-utils" lang="en">
@@ -40,8 +38,7 @@
   </author>
  </authorgroup>
 
- &version;
- &date;
+ <releaseinfo>@version@</releaseinfo>
 </bookinfo>
 
 &dumpelf;