Range filter: changed type for total length to off_t. Total length of a response with multiple ranges can be larger than a size_t variable can hold, so type changed to off_t. Previously, an incorrect Content-Length was returned when requesting more than 4G of ranges from a large enough file on a 32-bit system. An additional size_t variable introduced to calculate size of the boundary header buffer, as off_t is not needed here and will require type casts on win32. Reported by Shuxin Yang, http://mailman.nginx.org/pipermail/nginx/2017-July/054384.html.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


CFLAGS =	-c -zq -bt=nt -ot -op -oi -oe -s -bm $(CPU_OPT)
PCREFLAGS =	-DHAVE_CONFIG_H -DPCRE_STATIC -DPOSIX_MALLOC_THRESHOLD=10 &
		-DSUPPORT_PCRE8 -DHAVE_MEMMOVE


pcre.lib:
	cd $(PCRE)

	wcl386 $(CFLAGS) -i=. $(PCREFLAGS) pcre_*.c

	dir /b *.obj > pcre.lst

	wlib -n pcre.lib @pcre.lst

pcre.h:
	cd $(PCRE)

	copy /y pcre.h.generic pcre.h
	copy /y config.h.generic config.h
	copy /y pcre_chartables.c.dist pcre_chartables.c