[3929] pass input file path into mk_cfgrpt.sh

Added required input config report file parameter to
mk_cfgrpt.sh rather than having hard-coded by configure.

This allows cfgrpt/Makefile to pass in the pathname of
the report file it used in its "config_report.cc", as
the input report file.  In other words, we garuantee that
the file we used for change is the same file we generate
the source from.

configure.ac

@@ -1495,7 +1495,6 @@ AC_CONFIG_FILES([compatcheck/Makefile
                  src/lib/util/threads/tests/Makefile
                  src/lib/util/unittests/Makefile
                  tools/path_replacer.sh
-                 tools/mk_cfgrpt.sh
 ])
 
  AC_CONFIG_COMMANDS([permissions], [
@@ -1514,7 +1513,6 @@ AC_CONFIG_FILES([compatcheck/Makefile
            chmod +x src/lib/util/python/gen_wiredata.py
            chmod +x src/lib/util/tests/process_spawn_app.sh
            chmod +x tools/path_replacer.sh
-           chmod +x tools/mk_cfgrpt.sh
 ])
 
 AC_OUTPUT

src/lib/cfgrpt/Makefile.am

@@ -13,6 +13,9 @@ noinst_LTLIBRARIES = libcfgrpt.la
 nodist_libcfgrpt_la_SOURCES = config_report.cc
 libcfgrpt_la_SOURCES = config_report.h cfgrpt.cc
 
+# set pathname to the input configuration report
+report_file = $(abs_top_builddir)/config.report
+
 # Generate config_report.cc
-config_report.cc: $(abs_top_builddir)/config.report
-	$(abs_top_builddir)/tools/mk_cfgrpt.sh $(abs_top_builddir)/src/lib/cfgrpt/config_report.cc
+config_report.cc: $(report_file)
+	${SHELL} $(top_srcdir)/tools/mk_cfgrpt.sh $(report_file) $(top_builddir)/src/lib/cfgrpt/config_report.cc

tools/.gitignore

@@ -1,2 +1 @@
 /path_replacer.sh
-/mk_cfgrpt.sh

tools/mk_cfgrpt.sh.in

@@ -17,8 +17,8 @@
 # Called by configure
 #
 
-dest="$1"
-report_file="@abs_top_builddir@/config.report"
+report_file="$1"
+dest="$2"
 
 if [ -z ${report_file} ]
 then
@@ -36,7 +36,7 @@ fi
 
 # Header
 cat >> $dest << END
-// config_report.cc. Generated from config.report by tools/mk_cfgrpt_header.sh
+// config_report.cc. Generated from config.report by tools/mk_cfgrpt.sh
 
 namespace isc {
 namespace detail {