################################################################################
#
# This file contains various utility functions used by the package
# infrastructure, or by the packages themselves.
#
################################################################################

pkgname = $(basename $(@F))
pkg = $(call LOWERCASE,$(pkgname))
PKG = $(call UPPERCASE,$(pkgname))

PKG_BUILD_DIR = $(BUILD_DIR)/$($(PKG)_DIR)/$($(PKG)_SUBDIR)
PKG_FILES_DIR = $(PACKAGE_DIR)/$(subst host-,,$(pkgname))/files
PKG_PATCHES_DIR = $(PACKAGE_DIR)/$(subst host-,,$(pkgname))/patches

# -----------------------------------------------------------------------------

# check for necessary $(PKG) variables
define PKG_CHECK_VARIABLES

# patch
ifndef $(PKG)_PATCH
  $(PKG)_PATCH = $(PKG_PATCHES_DIR)
endif

# autoreconf
ifndef $(PKG)_AUTORECONF
  $(PKG)_AUTORECONF = NO
endif
ifndef $(PKG)_AUTORECONF_CMD
  $(PKG)_AUTORECONF_CMD = autoreconf -fi
endif
ifndef $(PKG)_AUTORECONF_ENV
  $(PKG)_AUTORECONF_ENV =
endif
ifndef $(PKG)_AUTORECONF_OPTS
  $(PKG)_AUTORECONF_OPTS =
endif

# cmake / configure / meson
ifndef $(PKG)_CMAKE
  $(PKG)_CMAKE = cmake
endif
ifndef $(PKG)_CONFIGURE_CMD
  $(PKG)_CONFIGURE_CMD = configure
endif
ifndef $(PKG)_CONF_ENV
  $(PKG)_CONF_ENV =
endif
ifndef $(PKG)_CONF_OPTS
  $(PKG)_CONF_OPTS =
endif

# make
ifndef $(PKG)_MAKE
  $(PKG)_MAKE = $(MAKE)
endif
ifndef $(PKG)_MAKE_ENV
  $(PKG)_MAKE_ENV =
endif
ifndef $(PKG)_MAKE_ARGS
  $(PKG)_MAKE_ARGS =
endif
ifndef $(PKG)_MAKE_OPTS
  $(PKG)_MAKE_OPTS =
endif

# make install
ifndef $(PKG)_MAKE_INSTALL
  $(PKG)_MAKE_INSTALL = $($(PKG)_MAKE)
endif
ifndef $(PKG)_MAKE_INSTALL_ENV
  $(PKG)_MAKE_INSTALL_ENV = $($(PKG)_MAKE_ENV)
endif
ifndef $(PKG)_MAKE_INSTALL_ARGS
  $(PKG)_MAKE_INSTALL_ARGS = install
endif
ifndef $(PKG)_MAKE_INSTALL_OPTS
  $(PKG)_MAKE_INSTALL_OPTS = $($(PKG)_MAKE_OPTS)
endif

# ninja
ifndef $(PKG)_NINJA_ENV
  $(PKG)_NINJA_ENV =
endif
ifndef $(PKG)_NINJA_OPTS
  $(PKG)_NINJA_OPTS =
endif

endef # PKG_CHECK_VARIABLES

pkg-check-variables = $(call PKG_CHECK_VARIABLES)

# -----------------------------------------------------------------------------

# PKG "control-flag" variables
PKG_NO_EXTRACT = pkg-no-extract
PKG_NO_PATCHES = pkg-no-patches
PKG_NO_BUILD = pkg-no-build
PKG_NO_INSTALL = pkg-no-install

# -----------------------------------------------------------------------------

# Compatibility variables (marked to remove)
PKG_DIR         = $($(PKG)_DIR)/$($(PKG)_SUBDIR)
PKG_SOURCE      = $($(PKG)_SOURCE)
PKG_SITE        = $($(PKG)_SITE)
PKG_PATCH       = $($(PKG)_PATCH)