games/lgogdownloader: Install manpages into ${PKGMANDIR}.

This package uses CMake to configure the software.  Include the
GNUInstallDirs CMake module to define CMAKE_INSTALL_<dir> macros,
and use CMAKE_INSTALL_MANDIR as the location for the installed
manpages.  The correct environment variables are passed so that
${CMAKE_INSTALL_MANDIR} points into ${PKGMANDIR}.

games/lgogdownloader/distinfo

@@ -1,6 +1,7 @@
-$NetBSD: distinfo,v 1.23 2017/03/12 07:24:06 wiz Exp $
+$NetBSD: distinfo,v 1.24 2017/08/19 00:21:43 jlam Exp $
 
 SHA1 (lgogdownloader-3.2.tar.gz) = 70f0878039cc53c4399b4b6f7676695f690b63fa
 RMD160 (lgogdownloader-3.2.tar.gz) = adcda81a02614c27e70dee5f82b331b67eb9ba83
 SHA512 (lgogdownloader-3.2.tar.gz) = b1d8d89b303c77e17601b19e09346b8d632bc049d40741442ad88646d8764e4efd3a04edcbcae5a5e098df3251ae88d15d355d06cbb03cf313a8619d3111ff35
 Size (lgogdownloader-3.2.tar.gz) = 68438 bytes
+SHA1 (patch-man_CMakeLists.txt) = 2109d1d0c4b16920c6fb22a2b47cdb5d52b0556a

games/lgogdownloader/patches/patch-man_CMakeLists.txt

@@ -0,0 +1,22 @@
+$NetBSD: patch-man_CMakeLists.txt,v 1.1 2017/08/19 00:21:43 jlam Exp $
+
+--- man/CMakeLists.txt.orig	2017-03-07 05:33:24.000000000 +0000
++++ man/CMakeLists.txt
+@@ -3,6 +3,8 @@ find_program(GZIP gzip DOC "Location of 
+ mark_as_advanced(HELP2MAN)
+ mark_as_advanced(GZIP)
+ 
++include(GNUInstallDirs)
++
+ if(HELP2MAN AND GZIP)	
+   set(H2M_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.supplemental.groff)
+   set(MAN_PAGE ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1)
+@@ -16,7 +18,7 @@ if(HELP2MAN AND GZIP)	
+ 	VERBATIM
+ 	)
+   add_custom_target(manpage ALL DEPENDS ${MAN_FILE} ${PROJECT_NAME})
+-  install(FILES ${MAN_FILE} DESTINATION ${INSTALL_SHARE_DIR}/man/man1)
++  install(FILES ${MAN_FILE} DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+ else(HELP2MAN AND GZIP)
+   message("WARNING: One of the following is missing: help2man, gzip; man page will not be generated")
+ endif(HELP2MAN AND GZIP)