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# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_code_coverage.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CODE_COVERAGE()
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#
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# DESCRIPTION
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#
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# Defines CODE_COVERAGE_CFLAGS and CODE_COVERAGE_LDFLAGS which should be
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# included in the CFLAGS and LIBS/LDFLAGS variables of every build target
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# (program or library) which should be built with code coverage support.
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# Also defines CODE_COVERAGE_RULES which should be substituted in your
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# Makefile; and $enable_code_coverage which can be used in subsequent
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# configure output. CODE_COVERAGE_ENABLED is defined and substituted, and
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# corresponds to the value of the --enable-code-coverage option, which
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# defaults to being disabled.
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#
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# Test also for gcov program and create GCOV variable that could be
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# substituted.
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#
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# Note that all optimisation flags in CFLAGS must be disabled when code
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# coverage is enabled.
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#
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# Usage example:
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#
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# configure.ac:
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#
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# AX_CODE_COVERAGE
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#
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# Makefile.am:
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#
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# @CODE_COVERAGE_RULES@
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# my_program_LIBS = ... $(CODE_COVERAGE_LDFLAGS) ...
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# my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ...
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#
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# This results in a "check-code-coverage" rule being added to any
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# Makefile.am which includes "@CODE_COVERAGE_RULES@" (assuming the module
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# has been configured with --enable-code-coverage). Running `make
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# check-code-coverage` in that directory will run the module's test suite
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# (`make check`) and build a code coverage report detailing the code which
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# was touched, then print the URI for the report.
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#
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# This code was derived from Makefile.decl in GLib, originally licenced
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# under LGPLv2.1+.
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#
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# LICENSE
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#
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# Copyright (c) 2012 Philip Withnall
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# Copyright (c) 2012 Xan Lopez
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# Copyright (c) 2012 Christian Persch
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# Copyright (c) 2012 Paolo Borelli
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# Copyright (c) 2012 Dan Winship
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# Copyright (c) 2015 Bastien ROUCARIES
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#
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# This library is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or (at
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# your option) any later version.
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#
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# This library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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# General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#serial 5
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AC_DEFUN([AX_CODE_COVERAGE],[
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dnl Check for --enable-code-coverage
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AC_REQUIRE([AC_PROG_SED])
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# allow to override gcov location
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AC_ARG_WITH([gcov],
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[AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])],
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[_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov],
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[_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov])
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AC_MSG_CHECKING([whether to build with code coverage support])
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AC_ARG_ENABLE([code-coverage],
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AS_HELP_STRING([--enable-code-coverage],
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[Whether to enable code coverage support]),,
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enable_code_coverage=no)
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AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test x$enable_code_coverage = xyes])
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AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage])
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AC_MSG_RESULT($enable_code_coverage)
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AS_IF([ test "$enable_code_coverage" = "yes" ], [
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# check for gcov
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AC_CHECK_TOOL([GCOV],
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[$_AX_CODE_COVERAGE_GCOV_PROG_WITH],
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[:])
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AS_IF([test "X$GCOV" = "X:"],
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[AC_MSG_ERROR([gcov is needed to do coverage])])
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AC_SUBST([GCOV])
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dnl Check if gcc is being used
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AS_IF([ test "$GCC" = "no" ], [
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AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage])
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])
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# List of supported lcov versions.
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lcov_version_list="1.6 1.7 1.8 1.9 1.10 1.11 1.13"
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AC_CHECK_PROG([LCOV], [lcov], [lcov])
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AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
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AS_IF([ test "$LCOV" ], [
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AC_CACHE_CHECK([for lcov version], ax_cv_lcov_version, [
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ax_cv_lcov_version=invalid
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lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'`
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for lcov_check_version in $lcov_version_list; do
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if test "$lcov_version" = "$lcov_check_version"; then
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ax_cv_lcov_version="$lcov_check_version (ok)"
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fi
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done
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])
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], [
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lcov_msg="To enable code coverage reporting you must have one of the following lcov versions installed: $lcov_version_list"
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AC_MSG_ERROR([$lcov_msg])
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])
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case $ax_cv_lcov_version in
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""|invalid[)]
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lcov_msg="You must have one of the following versions of lcov: $lcov_version_list (found: $lcov_version)."
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AC_MSG_ERROR([$lcov_msg])
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LCOV="exit 0;"
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;;
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esac
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AS_IF([ test -z "$GENHTML" ], [
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AC_MSG_ERROR([Could not find genhtml from the lcov package])
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])
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dnl Build the code coverage flags
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CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
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CODE_COVERAGE_LDFLAGS="-lgcov"
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AC_SUBST([CODE_COVERAGE_CFLAGS])
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AC_SUBST([CODE_COVERAGE_LDFLAGS])
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CODE_COVERAGE_RULES='
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# Code coverage
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#
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# Optional:
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# - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting.
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# (Default: $(top_builddir))
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# - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated
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# by lcov for code coverage. (Default:
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# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info)
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# - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage
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# reports to be created. (Default:
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# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage)
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# - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov
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# - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the lcov instance.
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# (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
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# - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the lcov instance.
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# (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
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# - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml
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# instance. (Default: empty)
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# - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore
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#
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# The generated report will be titled using the $(PACKAGE_NAME) and
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# $(PACKAGE_VERSION). In order to add the current git hash to the title,
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# use the git-version-gen script, available online.
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# Optional variables
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CODE_COVERAGE_DIRECTORY ?= $(top_builddir)
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CODE_COVERAGE_OUTPUT_FILE ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info
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CODE_COVERAGE_OUTPUT_DIRECTORY ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage
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CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool "$(GCOV)"
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CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= $(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
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CODE_COVERAGE_LCOV_OPTIONS ?= $(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
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CODE_COVERAGE_GENHTML_OPTIONS ?=
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CODE_COVERAGE_IGNORE_PATTERN ?=
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code_coverage_quiet = $(code_coverage_quiet_$(V))
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code_coverage_quiet_ =
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code_coverage_quiet_0 = --quiet
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# Use recursive makes in order to ignore errors during check
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check-code-coverage:
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-$(MAKE) $(AM_MAKEFLAGS) -k check
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$(MAKE) $(AM_MAKEFLAGS) code-coverage-capture
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# Capture code coverage data
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code-coverage-capture: code-coverage-capture-hook
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$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --capture --output-file "$(CODE_COVERAGE_OUTPUT_FILE).tmp" --test-name "$(PACKAGE_NAME)-$(PACKAGE_VERSION)" --no-checksum --compat-libtool $(CODE_COVERAGE_LCOV_OPTIONS)
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$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --remove "$(CODE_COVERAGE_OUTPUT_FILE).tmp" "/tmp/*" $(CODE_COVERAGE_IGNORE_PATTERN) --output-file "$(CODE_COVERAGE_OUTPUT_FILE)"
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-@rm -f $(CODE_COVERAGE_OUTPUT_FILE).tmp
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LANG=C $(GENHTML) $(code_coverage_quiet) --prefix $(CODE_COVERAGE_DIRECTORY) --output-directory "$(CODE_COVERAGE_OUTPUT_DIRECTORY)" --title "$(PACKAGE_NAME)-$(PACKAGE_VERSION) Code Coverage" --legend --show-details "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_GENHTML_OPTIONS)
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@echo "file://$(abs_builddir)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html"
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# Hook rule executed before code-coverage-capture, overridable by the user
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code-coverage-capture-hook:
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clean: code-coverage-clean
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code-coverage-clean:
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-$(LCOV) --directory $(top_builddir) -z
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-rm -rf $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_FILE).tmp $(CODE_COVERAGE_OUTPUT_DIRECTORY)
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-find . -name "*.gcda" -o -name "*.gcov" -delete
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GITIGNOREFILES ?=
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GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY)
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DISTCHECK_CONFIGURE_FLAGS ?=
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DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage
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.PHONY: check-code-coverage code-coverage-capture code-coverage-capture-hook code-coverage-clean
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'
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AC_SUBST([CODE_COVERAGE_RULES])
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])
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m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([CODE_COVERAGE_RULES])])
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])
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Daniel Stenberg