Fixed potential segfault in ngx_http_keepalive_handler(). In case of error in the read event handling we close a connection by calling ngx_http_close_connection(), that also destroys connection pool. Thereafter, an attempt to free a buffer (added in r4892) that was allocated from the pool could cause SIGSEGV and is meaningless as well (the buffer already freed with the pool).

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


CFLAGS = -q -O2 -tWM $(CPU_OPT) -DL_ENDIAN

!if "$(MD5_ASM)" == "YES"

md5.lib:
	cd $(MD5)
	bcc32 -c $(CFLAGS) -DMD5_ASM md5_dgst.c
	tlib md5.lib +md5_dgst.obj +"asm\m-win32.obj"

!else

md5.lib:
	cd $(MD5)
	bcc32 -c $(CFLAGS) md5_dgst.c
	tlib md5.lib +md5_dgst.obj

!endif