##
## Copyright (C) 2016 and later: Unicode, Inc. and others.
## License & terms of use: http://www.unicode.org/copyright.html
##  Copyright (c) 1999-2011, International Business Machines Corporation and
##  others. All Rights Reserved.
##
##
##  THE PURPOSE OF THIS TEST
##
##     This tests all public header files  - as installed.  icu-config needs to be on the PATH
##  
##     To run it simply type 'make check' after ICU is installed. You SHOULD see:
##
##  unicode/uchar.h -	0
##  unicode/uchriter.h -	0
##  unicode/ucnv.h -	0
##
##    .. etc.  Anything other than zero is an error. (except for the deprecation tests, where '1' is the correct value)
##
##  If the header test is run for a particular UCONFIG_NO_XXX=1 variation (see uconfig.h)
##  then invoke the test with 'make UCONFIG_NO="-DUCONFIG_NO_XXX=1 check'.
##  For standard header test run the UCONFIG_NO variable will evaluate to empty string.
##
##  If a header fails the C compile test it is likely because the header is a
##  C++ header and it isn't properly guarded by the U_SHOW_CPLUSPLUS_API macro.
##
##  If a header fails the cppguardtest test it is likely because the header doesn't
##  include the utypes.h header first *before* using the macro U_SHOW_CPLUSPLUS_API.
##
##  If a header fails because it is deprecated, add it to the 'dfiles.txt'
##
##

## Source directory information
srcdir = @srcdir@
top_srcdir = @top_srcdir@

top_builddir = ../..
subdir = test/hdrtst

include $(shell icu-config --incfile)

all: 
	@echo Please read this Makefile for more information.
	@echo run \'$(MAKE) check\' to run the test "(use -k if you don't want to stop on errs)"

check: dtest ctest cpptest drafttest deprtest internaltest obsoletetest cppguardtest

headertest:
	@FAIL=0;stub=ht_stub_$(NAME.headers).$(SUFFIX.headers); for file in "$(prefix)/include/unicode"/*.h ; do \
		incfile=`basename $$file` ; \
		echo "$(NAME.headers) unicode/$$incfile" ; \
		echo "#include <unicode/$$incfile>" > $$stub ; \
		echo 'void junk(){}' >> $$stub ; \
		$(COMPILE.headers) $(cppflags) $(FLAGS.headers) $(UCONFIG_NO) $$stub || FAIL=1 ; \
		rm -f $$stub; \
	done ; \
	exit $$FAIL

ctest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.c)" \
		SUFFIX.headers=c \
		FLAGS.headers=

cpptest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.cc)" \
		SUFFIX.headers=cpp \
		FLAGS.headers=

drafttest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.cc)" \
		SUFFIX.headers=cpp \
		FLAGS.headers="-DU_HIDE_DRAFT_API"

deprtest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.cc)" \
		SUFFIX.headers=cpp \
		FLAGS.headers="-DU_HIDE_DEPRECATED_API"

internaltest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.cc)" \
		SUFFIX.headers=cpp \
		FLAGS.headers="-DU_HIDE_INTERNAL_API"

obsoletetest:
	$(MAKE) headertest \
		NAME.headers=$@ \
		COMPILE.headers="$(COMPILE.cc)" \
		SUFFIX.headers=cpp \
		FLAGS.headers="-DU_HIDE_OBSOLETE_API"

dtest:
	@FAIL=0;NONE="(No deprecated headers)";stub=ht_stub_dtest.cpp;for incfile in `cat $(srcdir)/dfiles.txt | grep -v '^#' | sort` ; do \
		NONE= ; \
		echo "$@ unicode/$$incfile" ; \
		echo "#include <unicode/$$incfile>" > $$stub ; \
		echo 'void junk(){}' >> $$stub ; \
		$(COMPILE.cc) $(cppflags) $$stub 2>&1 | tee $$stub.out || FAIL=1 ; \
		if ! cat $$stub.out | sed -e 's/^.*#error[^"]*"//' | grep -v ht_ | grep -v "$$incfile header is obsolete"; then \
			echo "** FAIL Header unicode/$$incfile is not obsoleted properly" ; \
			FAIL=1 ; \
		fi ; \
		rm -f $$stub*; \
	done ; \
	echo "$@: $$NONE - exit status $$FAIL" ; \
	exit $$FAIL

cppguardtest:
	@FAIL=0;stub=ht_stub_cppguardtest.cpp; for file in "$(prefix)/include/unicode"/*.h ; do \
		incfile=`basename $$file` ; \
		if grep -q "U_SHOW_CPLUSPLUS_API" $$file ; then \
			echo "$@ unicode/$$incfile" ; \
			echo "#include <unicode/$$incfile>" > $$stub ; \
			echo 'void junk(){}' >> $$stub ; \
			echo '#if !defined(U_SHOW_CPLUSPLUS_API)' >> $$stub ; \
			echo "#error The header '$$incfile' refers to the macro U_SHOW_CPLUSPLUS_API (defined in utypes.h) but either does not include utypes.h or does so incorrectly." >> $$stub ; \
			echo '#endif' >> $$stub ; \
			$(COMPILE.cc) $(cppflags) $(UCONFIG_NO) $$stub || FAIL=1 ; \
			rm -f $$stub; \
		else \
			echo "$@ skipping unicode/$$incfile" ; \
		fi ; \
	done ; \
	exit $$FAIL

clean:
	-@rm -f ht_*

distclean: clean
	-@rm -f Makefile

Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
	cd $(top_builddir) \
	&& CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status

.PHONY:	doclean check all headertest cpptest dtest cppguardtest ctest clean distclean