$NetBSD: patch-CMakeLists.txt,v 1.1 2023/08/11 09:14:17 nia Exp $

Honour the platform's preferred man page directory.

--- CMakeLists.txt.orig	2020-10-08 19:05:41.000000000 +0000
+++ CMakeLists.txt
@@ -165,6 +165,7 @@ if(EXISTS "${CMAKE_SOURCE_DIR}/machine/m
     file(APPEND ${CMAKE_BINARY_DIR}/pg_top.1.rst "${MANUAL_SUPPLIMENT}")
 endif(EXISTS "${CMAKE_SOURCE_DIR}/machine/m_${MACHINE}.man.rst")
 file(APPEND ${CMAKE_BINARY_DIR}/pg_top.1 "${MANUAL_SUPPLIMENT}")
+
 execute_process(
     COMMAND rst2man.py ${CMAKE_BINARY_DIR}/pg_top.1.rst
     OUTPUT_FILE ${CMAKE_BINARY_DIR}/pg_top.1
@@ -288,10 +289,11 @@ install(
     ${CMAKE_BINARY_DIR}/${PROJECT_NAME}
     DESTINATION "bin"
 )
+include(GNUInstallDirs)
 install(
     FILES
     ${CMAKE_BINARY_DIR}/pg_top.1
-    DESTINATION "share/man/man1"
+    DESTINATION "${CMAKE_INSTALL_MANDIR}/man1"
 )
 
 # CPack rules for creating distribution files.