updated ax_code_coverage.m4 to version 25

m4/ax_code_coverage.m4

@@ -21,7 +21,7 @@
 #   Test also for gcov program and create GCOV variable that could be
 #   substituted.
 #
-#   Note that all optimisation flags in CFLAGS must be disabled when code
+#   Note that all optimization flags in CFLAGS must be disabled when code
 #   coverage is enabled.
 #
 #   Usage example:
@@ -75,7 +75,7 @@
 #   You should have received a copy of the GNU Lesser General Public License
 #   along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-#serial 21
+#serial 25
 
 AC_DEFUN([AX_CODE_COVERAGE],[
 	dnl Check for --enable-code-coverage
@@ -218,9 +218,12 @@ CODE_COVERAGE_LCOV_RMOPTS ?= $(CODE_COVERAGE_LCOV_RMOPTS_DEFAULT)
 CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT ?=\
 $(if $(CODE_COVERAGE_BRANCH_COVERAGE),\
 --rc genhtml_branch_coverage=$(CODE_COVERAGE_BRANCH_COVERAGE))
-CODE_COVERAGE_GENHTML_OPTIONS ?= $(CODE_COVERAGE_GENHTML_OPTIONS_DEFAULTS)
+CODE_COVERAGE_GENHTML_OPTIONS ?= $(CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT)
 CODE_COVERAGE_IGNORE_PATTERN ?=
 
+GITIGNOREFILES ?=
+GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY)
+
 code_coverage_v_lcov_cap = $(code_coverage_v_lcov_cap_$(V))
 code_coverage_v_lcov_cap_ = $(code_coverage_v_lcov_cap_$(AM_DEFAULT_VERBOSITY))
 code_coverage_v_lcov_cap_0 = @echo "  LCOV   --capture"\
@@ -250,9 +253,6 @@ code-coverage-capture-hook:
 
 '"$CODE_COVERAGE_RULES_CLEAN"'
 
-GITIGNOREFILES ?=
-GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY)
-
 A''M_DISTCHECK_CONFIGURE_FLAGS ?=
 A''M_DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage