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authorBetsy McPhail <betsy.mcphail@kitware.com>2020-04-23 15:22:54 (GMT)
committerBetsy McPhail <betsy.mcphail@kitware.com>2020-04-23 15:47:20 (GMT)
commitd0797f62d961c7fc8e9b654ed356833f1912dc59 (patch)
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parent61ac8e6dfa06d82ff2ef3ae3f0076fb9aa65d542 (diff)
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Tutorial: Clarify Step 5
Fixes: #20619
Diffstat (limited to 'Help/guide')
-rw-r--r--Help/guide/tutorial/index.rst8
1 files changed, 6 insertions, 2 deletions
diff --git a/Help/guide/tutorial/index.rst b/Help/guide/tutorial/index.rst
index 4fbcd4c..6e26de9 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