From 8ac3a5df0e0726120998218969192750326bbd20 Mon Sep 17 00:00:00 2001
From: Bevan Weiss <bevan.weiss@gmail.com>
Date: Sat, 15 Aug 2020 19:02:44 +1000
Subject: CMake: don't complain about missing nroff

The curl_nroff_check() was always being called, and complaining if
*NROFF wasn't found, even when not making the manual.

Only check for nroff (and complain) if actually making the manual

Closes #5817
---
 CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6a79b0b65..68842ee3e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -225,7 +225,10 @@ if(ENABLE_IPV6 AND NOT WIN32)
   endif()
 endif()
 
-curl_nroff_check()
+if(USE_MANUAL)
+    #nroff is currently only used when USE_MANUAL is set, so we can prevent the warning of no *NROFF if USE_MANUAL is OFF (or not defined), by not even looking for NROFF..
+    curl_nroff_check()
+endif()
 find_package(Perl)
 
 cmake_dependent_option(ENABLE_MANUAL "to provide the built-in manual"
-- 
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