274 lines
9.9 KiB
Bash
274 lines
9.9 KiB
Bash
#!/bin/sh
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# These variables are automatically filled in by the configure script.
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name="@PACKAGE_TARNAME@"
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version="@PACKAGE_VERSION@"
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show_usage()
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{
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echo "Usage: gtest-config [OPTIONS...]"
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}
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show_help()
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{
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show_usage
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cat <<\EOF
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The `gtest-config' script provides access to the necessary compile and linking
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flags to connect with Google C++ Testing Framework, both in a build prior to
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installation, and on the system proper after installation. The installation
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overrides may be issued in combination with any other queries, but will only
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affect installation queries if called on a built but not installed gtest. The
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installation queries may not be issued with any other types of queries, and
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only one installation query may be made at a time. The version queries and
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compiler flag queries may be combined as desired but not mixed. Different
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version queries are always combined with logical "and" semantics, and only the
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last of any particular query is used while all previous ones ignored. All
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versions must be specified as a sequence of numbers separated by periods.
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Compiler flag queries output the union of the sets of flags when combined.
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Examples:
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gtest-config --min-version=1.0 || echo "Insufficient Google Test version."
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g++ $(gtest-config --cppflags --cxxflags) -o foo.o -c foo.cpp
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g++ $(gtest-config --ldflags --libs) -o foo foo.o
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# When using a built but not installed Google Test:
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g++ $(../../my_gtest_build/scripts/gtest-config ...) ...
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# When using an installed Google Test, but with installation overrides:
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export GTEST_PREFIX="/opt"
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g++ $(gtest-config --libdir="/opt/lib64" ...) ...
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Help:
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--usage brief usage information
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--help display this help message
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Installation Overrides:
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--prefix=<dir> overrides the installation prefix
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--exec-prefix=<dir> overrides the executable installation prefix
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--libdir=<dir> overrides the library installation prefix
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--includedir=<dir> overrides the header file installation prefix
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Installation Queries:
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--prefix installation prefix
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--exec-prefix executable installation prefix
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--libdir library installation directory
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--includedir header file installation directory
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--version the version of the Google Test installation
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Version Queries:
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--min-version=VERSION return 0 if the version is at least VERSION
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--exact-version=VERSION return 0 if the version is exactly VERSION
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--max-version=VERSION return 0 if the version is at most VERSION
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Compilation Flag Queries:
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--cppflags compile flags specific to the C-like preprocessors
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--cxxflags compile flags appropriate for C++ programs
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--ldflags linker flags
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--libs libraries for linking
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EOF
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}
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# This function bounds our version with a min and a max. It uses some clever
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# POSIX-compliant variable expansion to portably do all the work in the shell
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# and avoid any dependency on a particular "sed" or "awk" implementation.
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# Notable is that it will only ever compare the first 3 components of versions.
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# Further components will be cleanly stripped off. All versions must be
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# unadorned, so "v1.0" will *not* work. The minimum version must be in $1, and
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# the max in $2. TODO(chandlerc@google.com): If this ever breaks, we should
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# investigate expanding this via autom4te from AS_VERSION_COMPARE rather than
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# continuing to maintain our own shell version.
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check_versions()
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{
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major_version=${version%%.*}
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minor_version="0"
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point_version="0"
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if test "${version#*.}" != "${version}"; then
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minor_version=${version#*.}
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minor_version=${minor_version%%.*}
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fi
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if test "${version#*.*.}" != "${version}"; then
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point_version=${version#*.*.}
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point_version=${point_version%%.*}
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fi
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min_version="$1"
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min_major_version=${min_version%%.*}
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min_minor_version="0"
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min_point_version="0"
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if test "${min_version#*.}" != "${min_version}"; then
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min_minor_version=${min_version#*.}
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min_minor_version=${min_minor_version%%.*}
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fi
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if test "${min_version#*.*.}" != "${min_version}"; then
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min_point_version=${min_version#*.*.}
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min_point_version=${min_point_version%%.*}
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fi
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max_version="$2"
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max_major_version=${max_version%%.*}
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max_minor_version="0"
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max_point_version="0"
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if test "${max_version#*.}" != "${max_version}"; then
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max_minor_version=${max_version#*.}
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max_minor_version=${max_minor_version%%.*}
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fi
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if test "${max_version#*.*.}" != "${max_version}"; then
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max_point_version=${max_version#*.*.}
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max_point_version=${max_point_version%%.*}
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fi
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test $(($major_version)) -lt $(($min_major_version)) && exit 1
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if test $(($major_version)) -eq $(($min_major_version)); then
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test $(($minor_version)) -lt $(($min_minor_version)) && exit 1
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if test $(($minor_version)) -eq $(($min_minor_version)); then
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test $(($point_version)) -lt $(($min_point_version)) && exit 1
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fi
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fi
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test $(($major_version)) -gt $(($max_major_version)) && exit 1
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if test $(($major_version)) -eq $(($max_major_version)); then
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test $(($minor_version)) -gt $(($max_minor_version)) && exit 1
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if test $(($minor_version)) -eq $(($max_minor_version)); then
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test $(($point_version)) -gt $(($max_point_version)) && exit 1
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fi
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fi
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exit 0
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}
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# Show the usage line when no arguments are specified.
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if test $# -eq 0; then
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show_usage
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exit 1
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fi
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while test $# -gt 0; do
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case $1 in
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--usage) show_usage; exit 0;;
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--help) show_help; exit 0;;
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# Installation overrides
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--prefix=*) GTEST_PREFIX=${1#--prefix=};;
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--exec-prefix=*) GTEST_EXEC_PREFIX=${1#--exec-prefix=};;
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--libdir=*) GTEST_LIBDIR=${1#--libdir=};;
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--includedir=*) GTEST_INCLUDEDIR=${1#--includedir=};;
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# Installation queries
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--prefix|--exec-prefix|--libdir|--includedir|--version)
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if test -n "${do_query}"; then
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show_usage
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exit 1
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fi
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do_query=${1#--}
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;;
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# Version checking
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--min-version=*)
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do_check_versions=yes
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min_version=${1#--min-version=}
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;;
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--max-version=*)
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do_check_versions=yes
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max_version=${1#--max-version=}
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;;
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--exact-version=*)
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do_check_versions=yes
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exact_version=${1#--exact-version=}
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;;
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# Compiler flag output
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--cppflags) echo_cppflags=yes;;
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--cxxflags) echo_cxxflags=yes;;
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--ldflags) echo_ldflags=yes;;
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--libs) echo_libs=yes;;
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# Everything else is an error
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*) show_usage; exit 1;;
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esac
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shift
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done
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# These have defaults filled in by the configure script but can also be
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# overridden by environment variables or command line parameters.
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prefix="${GTEST_PREFIX:-@prefix@}"
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exec_prefix="${GTEST_EXEC_PREFIX:-@exec_prefix@}"
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libdir="${GTEST_LIBDIR:-@libdir@}"
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includedir="${GTEST_INCLUDEDIR:-@includedir@}"
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# We try and detect if our binary is not located at its installed location. If
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# it's not, we provide variables pointing to the source and build tree rather
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# than to the install tree. This allows building against a just-built gtest
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# rather than an installed gtest.
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bindir="@bindir@"
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this_relative_bindir=`dirname $0`
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this_bindir=`cd ${this_relative_bindir}; pwd -P`
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if test "${this_bindir}" = "${this_bindir%${bindir}}"; then
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# The path to the script doesn't end in the bindir sequence from Autoconf,
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# assume that we are in a build tree.
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build_dir=`dirname ${this_bindir}`
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src_dir=`cd ${this_bindir}; cd @top_srcdir@; pwd -P`
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# TODO(chandlerc@google.com): This is a dangerous dependency on libtool, we
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# should work to remove it, and/or remove libtool altogether, replacing it
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# with direct references to the library and a link path.
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gtest_libs="${build_dir}/lib/libgtest.la @PTHREAD_CFLAGS@ @PTHREAD_LIBS@"
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gtest_ldflags=""
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# We provide hooks to include from either the source or build dir, where the
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# build dir is always preferred. This will potentially allow us to write
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# build rules for generated headers and have them automatically be preferred
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# over provided versions.
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gtest_cppflags="-I${build_dir}/include -I${src_dir}/include"
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gtest_cxxflags="@PTHREAD_CFLAGS@"
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else
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# We're using an installed gtest, although it may be staged under some
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# prefix. Assume (as our own libraries do) that we can resolve the prefix,
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# and are present in the dynamic link paths.
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gtest_ldflags="-L${libdir}"
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gtest_libs="-l${name} @PTHREAD_CFLAGS@ @PTHREAD_LIBS@"
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gtest_cppflags="-I${includedir}"
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gtest_cxxflags="@PTHREAD_CFLAGS@"
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fi
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# Do an installation query if requested.
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if test -n "$do_query"; then
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case $do_query in
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prefix) echo $prefix; exit 0;;
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exec-prefix) echo $exec_prefix; exit 0;;
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libdir) echo $libdir; exit 0;;
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includedir) echo $includedir; exit 0;;
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version) echo $version; exit 0;;
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*) show_usage; exit 1;;
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esac
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fi
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# Do a version check if requested.
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if test "$do_check_versions" = "yes"; then
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# Make sure we didn't receive a bad combination of parameters.
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test "$echo_cppflags" = "yes" && show_usage && exit 1
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test "$echo_cxxflags" = "yes" && show_usage && exit 1
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test "$echo_ldflags" = "yes" && show_usage && exit 1
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test "$echo_libs" = "yes" && show_usage && exit 1
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if test "$exact_version" != ""; then
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check_versions $exact_version $exact_version
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# unreachable
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else
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check_versions ${min_version:-0.0.0} ${max_version:-9999.9999.9999}
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# unreachable
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fi
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fi
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# Do the output in the correct order so that these can be used in-line of
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# a compiler invocation.
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output=""
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test "$echo_cppflags" = "yes" && output="$output $gtest_cppflags"
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test "$echo_cxxflags" = "yes" && output="$output $gtest_cxxflags"
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test "$echo_ldflags" = "yes" && output="$output $gtest_ldflags"
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test "$echo_libs" = "yes" && output="$output $gtest_libs"
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echo $output
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exit 0
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