From d0797f62d961c7fc8e9b654ed356833f1912dc59 Mon Sep 17 00:00:00 2001 From: Betsy McPhail Date: Thu, 23 Apr 2020 11:22:54 -0400 Subject: Tutorial: Clarify Step 5 Fixes: #20619 --- Help/guide/tutorial/index.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'Help/guide') diff --git a/Help/guide/tutorial/index.rst b/Help/guide/tutorial/index.rst index 4fbcd4c211..6e26de977e 100644 --- a/Help/guide/tutorial/index.rst +++ b/Help/guide/tutorial/index.rst @@ -380,8 +380,12 @@ tutorial assume that they are not common. If the platform has ``log`` and ``exp`` then we will use them to compute the square root in the ``mysqrt`` function. We first test for the availability of these functions using the :module:`CheckSymbolExists` module in the top-level -``CMakeLists.txt``. We're going to use the new defines in -``TutorialConfig.h.in``, so be sure to set them before that file is configured. +``CMakeLists.txt``. On some platforms, we will need to link to the m library. +If ``log`` and ``exp`` are not initially found, require the m library and try +again. + +We're going to use the new defines in ``TutorialConfig.h.in``, so be sure to +set them before that file is configured. .. literalinclude:: Step6/MathFunctions/CMakeLists.txt :language: cmake -- cgit v1.2.1