From 731c383f5f3948f97990345cef02258d29ad7108 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Fri, 25 Mar 2016 11:23:16 -0700
Subject: CMake: Add a note about CMAKE_TRY_COMPILE_CONFIGURATION.

Note that CMAKE_TRY_COMPILE_CONFIGURATION can noticeably affect the run
time of MSBuild, which in turn affects try_compile, which we call many,
many times.

Change-Id: I041d00e647ab570ec14f7c78b1d1d6806ac31ce4
Reviewed-on: https://code.wireshark.org/review/14630
Reviewed-by: Gerald Combs <gerald@wireshark.org>
---
 README.cmake | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'README.cmake')

diff --git a/README.cmake b/README.cmake
index d72cd1abb7..03b72fbe45 100644
--- a/README.cmake
+++ b/README.cmake
@@ -64,6 +64,11 @@ Note 1:
   -G "CodeBlocks - Unix Makefiles"
   -G "CodeBlocks - NMake Makefiles"
 
+  # We call try_compile many times, particularly via ConfigureChecks.cmake.
+  # Setting a lightweight try_compile configuration can speed up cmake,
+  # particularly for MSBuild.
+  -DCMAKE_TRY_COMPILE_CONFIGURATION=Release
+
 Note 2:
   After running cmake, you can always run "make help" to see
   a list of all possible make targets.
-- 
cgit v1.2.1