# Separate build directory Makefile overrides for htslib.
#
#    Copyright (C) 2021 University of Glasgow.
#
#    Author: John Marshall <jmarshall@hey.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.

# This is @configure_input@
#
# When building from a separate build directory, this file is included by
# HTSlib's Makefile or htslib.mk instead of htslib_vars.mk. It adjusts
# variables to account for a separate source directory and then includes
# the real makefile fragment.

ifneq "$(HTSPREFIX)" ""
# When included externally via htslib.mk, just update $(HTSSRCDIR) and hence
# $(HTSPREFIX) to point to the source directory (without using any extra
# unprefixed variables, which would be in the external project's namespace).

# Set to $(HTSDIR)/$(srcdir) (or just $(srcdir) if that's absolute)
HTSSRCDIR = @HTSDIRslash_if_relsrcdir@@srcdir@

include $(HTSSRCDIR)/htslib_vars.mk

else
# When included from HTSlib's Makefile, override $(srcdir) and set VPATH,
# and make any other adjustments required. ($(HTSPREFIX) remains empty as
# the items it prefixes will be found via VPATH instead.)

srcdir = @srcdir@
VPATH  = @srcdir@

srcprefix = $(srcdir)/

# Ensure that htscodecs.c can include its version.h. This -I option must come
# before -I. so that these targets get this version.h rather than HTSlib's.
htscodecs/htscodecs/htscodecs.o htscodecs/htscodecs/htscodecs.pico: ALL_CPPFLAGS = -Ihtscodecs/htscodecs -I. $(CPPFLAGS)

include $(srcdir)/htslib_vars.mk

endif
