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lines 7-65 of file: bin/get_ipopt.sh
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# {xrst_begin get_ipopt.sh}
# {xrst_spell
#     blas
#     lapack
# }
# {xrst_comment_ch #}
#
# Download and Install Ipopt in Build Directory
# #############################################
#
# Syntax
# ******
# ``bin/get_ipopt.sh``
#
# Purpose
# *******
# If you are using Unix, this command will download and install
# `Ipopt <https://coin-or.github.io/Ipopt/>`_ in the
# CppAD ``build`` directory.
#
# Requirements
# ************
# This It is assumed that a copy of the Blas and Lapack is installed on
# the system.
#
# Distribution Directory
# **********************
# This command must be executed in the
# :ref:`download@Distribution Directory` .
#
# Source Directory
# ****************
# The Ipopt source code is downloaded and compiled in the sub-directory
# ``external/Ipopt.git`` below the distribution directory.
#
# Prefix
# ******
# The :ref:`get_optional.sh@prefix`
# in the file ``bin/get_optional.sh`` is used for this install.
#
# Version
# *******
# This will install the following version of Ipopt
# {xrst_spell_off}
# {xrst_code sh}
ipopt_version='3.14.16'
# {xrst_code}
# {xrst_spell_on}
#
# Configuration
# *************
# If the file
#
#     ``external/ipopt-`` *version* . ``configured``
#
# exists, the configuration will be skipped.
# Delete this file if you want to re-run the configuration.
#
# {xrst_end get_ipopt.sh}