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# Copyright 2012 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
# Checks for existence of coverage tools:
# * gcov
# * lcov
# * genhtml
# * gcovr
#
# Sets ac_cv_check_gcov to yes if tooling is present
# and reports the executables to the variables LCOV, GCOVR and GENHTML.
AC_DEFUN([AC_TDD_GCOV],
[
AC_ARG_ENABLE(gcov,
AS_HELP_STRING([--enable-gcov],
[enable coverage testing with gcov]),
[use_gcov=$enableval], [use_gcov=no])
AM_CONDITIONAL(HAVE_GCOV, test "x$use_gcov" = "xyes")
if test "x$use_gcov" = "xyes"; then
# we need gcc:
if test "$GCC" != "yes"; then
AC_MSG_ERROR([GCC is required for --enable-gcov])
fi
# Check if ccache is being used
AC_CHECK_PROG(SHTOOL, shtool, shtool)
if test "$SHTOOL"; then
AS_CASE([`$SHTOOL path $CC`],
[*ccache*], [gcc_ccache=yes],
[gcc_ccache=no])
fi
if test "$gcc_ccache" = "yes" && (test -z "$CCACHE_DISABLE" || test "$CCACHE_DISABLE" != "1"); then
AC_MSG_ERROR([ccache must be disabled when --enable-gcov option is used. You can disable ccache by setting environment variable CCACHE_DISABLE=1.])
fi
lcov_version_list="1.6 1.7 1.8 1.9 1.10 1.11 1.12"
AC_CHECK_PROG(LCOV, lcov, lcov)
AC_CHECK_PROG(GENHTML, genhtml, genhtml)
if test "$LCOV"; then
AC_CACHE_CHECK([for lcov version], glib_cv_lcov_version, [
glib_cv_lcov_version=invalid
lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'`
for lcov_check_version in $lcov_version_list; do
if test "$lcov_version" = "$lcov_check_version"; then
glib_cv_lcov_version="$lcov_check_version (ok)"
fi
done
])
else
lcov_msg="To enable code coverage reporting you must have one of the following lcov versions installed: $lcov_version_list"
AC_MSG_ERROR([$lcov_msg])
fi
case $glib_cv_lcov_version in
""|invalid[)]
lcov_msg="You must have one of the following versions of lcov: $lcov_version_list (found: $lcov_version)."
AC_MSG_ERROR([$lcov_msg])
LCOV="exit 0;"
;;
esac
if test -z "$GENHTML"; then
AC_MSG_ERROR([Could not find genhtml from the lcov package])
fi
ac_cv_check_gcov=yes
ac_cv_check_lcov=yes
# Remove all optimization flags from CFLAGS
changequote({,})
CFLAGS=`echo "$CFLAGS" | $SED -e 's/-O[0-9]*//g'`
changequote([,])
# Add the special gcc flags
COVERAGE_CFLAGS="-O0 -fprofile-arcs -ftest-coverage"
COVERAGE_CXXFLAGS="-O0 -fprofile-arcs -ftest-coverage"
COVERAGE_LDFLAGS="-lgcov"
# Check availability of gcovr
AC_CHECK_PROG(GCOVR, gcovr, gcovr)
if test -z "$GCOVR"; then
ac_cv_check_gcovr=no
else
ac_cv_check_gcovr=yes
fi
fi
]) # AC_TDD_GCOV
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