Use AX_CODE_COVERAGE instead of deprecated GNOME_CODE_COVERAGE

Fixes #89

Author: martinpitt

Makefile.am

@@ -432,7 +432,7 @@ EXTRA_DIST += $(EXAMPLES)
 # umockdev-scan is something internal from gcov/lcov, ignore that
 CODE_COVERAGE_IGNORE_PATTERN = */docs/* */usr/* *umockdev-scan*
 CODE_COVERAGE_LCOV_OPTIONS = --base-directory $(top_builddir)
-@GNOME_CODE_COVERAGE_RULES@
+@CODE_COVERAGE_RULES@
 
 # -------------------------------------------------------------
 # developer tools

configure.ac

@@ -85,16 +85,17 @@ AM_PROG_VALAC([0.16.1])
 
 # code coverage support
 AC_MSG_CHECKING(for GNOME code coverage support)
-m4_ifdef([GNOME_CODE_COVERAGE],
+m4_ifdef([AX_CODE_COVERAGE],
          [AC_MSG_RESULT(yes)
-          GNOME_CODE_COVERAGE],
+          AX_CODE_COVERAGE],
          [AC_MSG_RESULT(no)
-          GNOME_CODE_COVERAGE_RULES=''
-          AC_SUBST([GNOME_CODE_COVERAGE_RULES])
+          CODE_COVERAGE_RULES=''
+          AC_SUBST([CODE_COVERAGE_RULES])
           enable_code_coverage="no"])
 
+CPPFLAGS="$CPPFLAGS $CODE_COVERAGE_CPPFLAGS"
 CFLAGS="$CFLAGS $CODE_COVERAGE_CFLAGS"
-LDFLAGS="$LDFLAGS $CODE_COVERAGE_CFLAGS"
+LDFLAGS="$LDFLAGS $CODE_COVERAGE_LIBS"
 
 AC_CONFIG_FILES([
 	Makefile