add Dockerfile used to build travis test image.

diff --git a/tools/Dockerfile b/tools/Dockerfile
new file mode 100644 (file)
index 0000000..e640100
--- /dev/null
+++ b/tools/Dockerfile
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+# this file is used to build the image gpsbabel_build_environment used by travis.
+
+FROM ubuntu:bionic
+
+WORKDIR /app
+
+# update environment, including held back packages that were found by hand.
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends apt-utils && apt-get install -y apt dpkg libapt-pkg5.0 && apt-get upgrade -y
+
+# install packages needed for gpsbabel build
+RUN apt-get install -y g++ clang make autoconf gperf git expat fop valgrind xsltproc libxml2-utils qt5-default libqt5webkit5-dev qttools5-dev-tools libusb-dev docbook-xml docbook-xsl
+
+# install environment for locale test
+RUN apt-get install -y locales && sed -i 's/^# *\(en_US ISO-8859-1\)/\1/' /etc/locale.gen && locale-gen && locale -a
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