From eeaaf6d1da6b8b74b5bf28cf633245c47a365ec6 Mon Sep 17 00:00:00 2001
From: nia <29542929+niacat@users.noreply.github.com>
Date: Mon, 28 Oct 2019 00:56:34 +0000
Subject: [PATCH] Support CMAKE_INSTALL_MANDIR (#5276)

---
 src/CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2fa72a401..ed0deefd1 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -202,7 +202,13 @@ ELSE()
 		SET_TARGET_PROPERTIES(lmms PROPERTIES LINK_FLAGS "${LINK_FLAGS} -Wl,-E")
 	ENDIF(NOT LMMS_BUILD_APPLE)
 
-	INSTALL(FILES "${CMAKE_BINARY_DIR}/lmms.1.gz" DESTINATION "${CMAKE_INSTALL_PREFIX}/share/man/man1/"
+	if(CMAKE_INSTALL_MANDIR)
+		SET(INSTALL_MANDIR ${CMAKE_INSTALL_MANDIR})
+	ELSE(CMAKE_INSTALL_MANDIR)
+		SET(INSTALL_MANDIR ${CMAKE_INSTALL_PREFIX}/share/man)
+	ENDIF(CMAKE_INSTALL_MANDIR)
+	INSTALL(FILES "${CMAKE_BINARY_DIR}/lmms.1.gz"
+			DESTINATION "${INSTALL_MANDIR}/man1/"
 			PERMISSIONS OWNER_READ GROUP_READ WORLD_READ)
 ENDIF()