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# Copyright (C) CZ.NIC, z.s.p.o. and contributors
# SPDX-License-Identifier: GPL-2.0-or-later
# For more information, see <https://www.knot-dns.cz/>
AC_DEFUN([AX_CODE_COVERAGE], [
dnl Check for --enable-code-coverage
AC_ARG_ENABLE([code-coverage],
AS_HELP_STRING([--enable-code-coverage], [enable code coverage testing with gcov]),
[enable_code_coverage=$enableval],
[enable_code_coverage=no]
)
AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test "$enable_code_coverage" = "yes"])
AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage])
AS_IF([test "$enable_code_coverage" = "yes"], [
AC_CHECK_PROG([LCOV], [lcov], [lcov])
AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
AS_IF([test -z "$LCOV"], [
AC_MSG_ERROR([Could not find lcov])
])
AS_IF([test -z "$GENHTML"], [
AC_MSG_ERROR([Could not find genhtml from the lcov package])
])
dnl Remove all optimization flags from CFLAGS
changequote({,})
CFLAGS=`echo "$CFLAGS" | $SED -e 's/-O[0-9]*//g'`
changequote([,])
dnl Add the coverage flags (clang, gcc)
CFLAGS="$CFLAGS --coverage"
LDFLAGS="$LDFLAGS --coverage"
])
]) # AC_CODE_COVERAGE
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