Add CMake infrastructure, including CTest support.

Open points:
pkgconfig file not yet built.
installation not tested.
Problems generating html pages.
distribution tarball not checked for unwanted/missing content.

--HG--
branch : HEAD
diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
new file mode 100644
index 0000000..8de246d
--- /dev/null
+++ b/man/CMakeLists.txt
@@ -0,0 +1,97 @@
+SET(MDOC3_PAGES
+  libzip.mdoc
+  zip_add.mdoc
+  zip_add_dir.mdoc
+  zip_close.mdoc
+  zip_delete.mdoc
+  zip_error_clear.mdoc
+  zip_error_get.mdoc
+  zip_error_get_sys_type.mdoc
+  zip_error_to_str.mdoc
+  zip_errors.mdoc
+  zip_fclose.mdoc
+  zip_file_strerror.mdoc
+  zip_fopen.mdoc
+  zip_fread.mdoc
+  zip_get_archive_comment.mdoc
+  zip_get_file_comment.mdoc
+  zip_get_name.mdoc
+  zip_get_num_files.mdoc
+  zip_name_locate.mdoc
+  zip_open.mdoc
+  zip_rename.mdoc
+  zip_set_archive_comment.mdoc
+  zip_set_file_comment.mdoc
+  zip_source_buffer.mdoc
+  zip_source_file.mdoc
+  zip_source_filep.mdoc
+  zip_source_free.mdoc
+  zip_source_function.mdoc
+  zip_source_zip.mdoc
+  zip_stat.mdoc
+  zip_stat_init.mdoc
+  zip_unchange.mdoc
+  zip_unchange_all.mdoc
+  zip_unchange_archive.mdoc
+)
+SET(MDOC1_PAGES
+  zipcmp.mdoc
+  zipmerge.mdoc
+)
+SET(MDOC_PAGES ${MDOC1_PAGES} ${MDOC3_PAGES})
+STRING(REGEX REPLACE .mdoc "" MAN1_PAGES "${MDOC1_PAGES}")
+STRING(REGEX REPLACE .mdoc "" MAN3_PAGES "${MDOC3_PAGES}")
+SET(MAN_PAGES ${MAN1_PAGES} ${MAN3_PAGES})
+
+IF(CMAKE_SYSTEM_NAME MATCHES BSD)
+  SET(MANFMT mdoc)
+ELSE(CMAKE_SYSTEM_NAME MATCHES BSD)
+  SET(MANFMT man)
+ENDif(CMAKE_SYSTEM_NAME MATCHES BSD)
+
+# installation
+
+SET(MAN_PATH man)
+
+FOREACH(MAN_PAGE ${MAN1_PAGES})
+  INSTALL(FILES ${MAN_PAGE}.${MANFMT} DESTINATION ${MAN_PATH}/man1
+    RENAME ${MAN_PAGE}.1)
+ENDFOREACH(MAN_PAGE ${PROGRAMS})
+FOREACH(MAN_PAGE ${MAN3_PAGES})
+  INSTALL(FILES ${MAN_PAGE}.${MANFMT} DESTINATION ${MAN_PATH}/man3
+    RENAME ${MAN_PAGE}.3)
+ENDFOREACH(MAN_PAGE ${PROGRAMS})
+
+# custom targets
+
+FOREACH(MAN ${MAN_PAGES})
+  ADD_CUSTOM_TARGET(${MAN}.man
+    DEPENDS ${MAN}.mdoc
+    COMMAND mdoc2man ${CMAKE_CURRENT_SOURCE_DIR}/${MAN}.mdoc > ${MAN}.new
+    COMMAND diff -I NiH ${MAN}.new ${CMAKE_CURRENT_SOURCE_DIR}/${MAN}.man || mv ${MAN}.new ${CMAKE_CURRENT_SOURCE_DIR}/${MAN}.man
+    COMMAND rm -f ${MAN}.new
+    COMMENT Updating man page ${MAN}.man
+    )
+  ADD_CUSTOM_TARGET(${MAN}.html
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${MAN}.mdoc
+    COMMAND nroff -mdoc2html ${CMAKE_CURRENT_SOURCE_DIR}/${MAN}.mdoc | sed -e "s,../html[0-9]/,," > ${MAN}.html
+    COMMENT Updating HTML page ${MAN}.html
+    )
+ENDFOREACH(MAN)
+
+STRING(REGEX REPLACE .mdoc .man MANDEPEND "${MDOC_PAGES}")
+ADD_CUSTOM_TARGET(update-man
+  DEPENDS ${MANDEPEND})
+
+STRING(REGEX REPLACE .mdoc .html HTMLDEPEND "${MDOC_PAGES}")
+ADD_CUSTOM_TARGET(update-html
+  DEPENDS ${HTMLDEPEND})
+
+# XXX: strange error:
+#[ 94%] zipcmp.html
+#[ 97%] Built target zipcmp.html
+#[ 97%] zipmerge.html
+#[100%] Built target zipmerge.html
+#make: don't know how to make zipcmp.html. Stop
+
+# XXX: why are all the man pages rebuilt on a second 'make update-html'?