From 0de3f3a3f7cf8dae92950e271954841be336a01e Mon Sep 17 00:00:00 2001
From: Konstantin Podsvirov <konstantin@podsvirov.pro>
Date: Sat, 6 Nov 2021 16:31:20 +0300
Subject: [PATCH] Allow to build man pages on Windows

Why not if xsltproc available?
Moreover why try to install not existent files?

Signed-off-by: Konstantin Podsvirov <konstantin@podsvirov.pro>
---
 man/CMakeLists.txt | 75 +++++++++++++++++++++++-----------------------
 1 file changed, 38 insertions(+), 37 deletions(-)

diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
index 2c8b0955..a5b93e35 100644
--- a/man/CMakeLists.txt
+++ b/man/CMakeLists.txt
@@ -4,44 +4,45 @@
 # could not be found, then the man pages will not be built or installed -
 # because the install is optional.
 
-if(NOT WIN32)
-	find_program(XSLTPROC xsltproc OPTIONAL)
-	if(XSLTPROC)
-		function(compile_manpage page)
-			add_custom_command(OUTPUT ${CMAKE_SOURCE_DIR}/man/${page}
-				COMMAND xsltproc ${CMAKE_SOURCE_DIR}/man/${page}.xml -o ${CMAKE_SOURCE_DIR}/man/
-				MAIN_DEPENDENCY ${CMAKE_SOURCE_DIR}/man/${page}.xml)
-			add_custom_target(${page} ALL DEPENDS ${CMAKE_SOURCE_DIR}/man/${page})
-		endfunction()
+find_program(XSLTPROC xsltproc OPTIONAL)
+if(XSLTPROC)
+	function(compile_manpage page)
+		add_custom_command(OUTPUT ${CMAKE_SOURCE_DIR}/man/${page}
+			COMMAND xsltproc ${CMAKE_SOURCE_DIR}/man/${page}.xml -o ${CMAKE_SOURCE_DIR}/man/
+			MAIN_DEPENDENCY ${CMAKE_SOURCE_DIR}/man/${page}.xml)
+		add_custom_target(${page} ALL DEPENDS ${CMAKE_SOURCE_DIR}/man/${page})
+	endfunction()
 
-		compile_manpage("mosquitto_ctrl.1")
-		compile_manpage("mosquitto_ctrl_dynsec.1")
-		compile_manpage("mosquitto_passwd.1")
-		compile_manpage("mosquitto_pub.1")
-		compile_manpage("mosquitto_sub.1")
-		compile_manpage("mosquitto_rr.1")
-		compile_manpage("libmosquitto.3")
-		compile_manpage("mosquitto.conf.5")
-		compile_manpage("mosquitto-tls.7")
-		compile_manpage("mqtt.7")
-		compile_manpage("mosquitto.8")
-	else()
-		message(FATAL_ERROR "xsltproc not found: manpages cannot be built")
-	endif()
+	compile_manpage("mosquitto_ctrl.1")
+	compile_manpage("mosquitto_ctrl_dynsec.1")
+	compile_manpage("mosquitto_passwd.1")
+	compile_manpage("mosquitto_pub.1")
+	compile_manpage("mosquitto_sub.1")
+	compile_manpage("mosquitto_rr.1")
+	compile_manpage("libmosquitto.3")
+	compile_manpage("mosquitto.conf.5")
+	compile_manpage("mosquitto-tls.7")
+	compile_manpage("mqtt.7")
+	compile_manpage("mosquitto.8")
 
+	install(FILES
+		mosquitto_ctrl.1
+		mosquitto_ctrl_dynsec.1
+		mosquitto_passwd.1
+		mosquitto_pub.1
+		mosquitto_sub.1
+		mosquitto_rr.1
+		DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
+		OPTIONAL)
+
+	install(FILES libmosquitto.3 DESTINATION ${CMAKE_INSTALL_MANDIR}/man3 OPTIONAL)
+	install(FILES mosquitto.conf.5 DESTINATION ${CMAKE_INSTALL_MANDIR}/man5 OPTIONAL)
+	install(FILES mosquitto-tls.7 mqtt.7 DESTINATION ${CMAKE_INSTALL_MANDIR}/man7 OPTIONAL)
+	install(FILES mosquitto.8 DESTINATION ${CMAKE_INSTALL_MANDIR}/man8 OPTIONAL)
+
+elseif(WIN32)
+	message(WARNING "xsltproc not found: manpages cannot be built")
+else()
+	message(FATAL_ERROR "xsltproc not found: manpages cannot be built")
 endif()
 
-install(FILES
-	mosquitto_ctrl.1
-	mosquitto_ctrl_dynsec.1
-	mosquitto_passwd.1
-	mosquitto_pub.1
-	mosquitto_sub.1
-	mosquitto_rr.1
-	DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
-	OPTIONAL)
-
-install(FILES libmosquitto.3 DESTINATION ${CMAKE_INSTALL_MANDIR}/man3 OPTIONAL)
-install(FILES mosquitto.conf.5 DESTINATION ${CMAKE_INSTALL_MANDIR}/man5 OPTIONAL)
-install(FILES mosquitto-tls.7 mqtt.7 DESTINATION ${CMAKE_INSTALL_MANDIR}/man7 OPTIONAL)
-install(FILES mosquitto.8 DESTINATION ${CMAKE_INSTALL_MANDIR}/man8 OPTIONAL)