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156 lines
7.1 KiB
Makefile
156 lines
7.1 KiB
Makefile
# ---------------------------------------------------------------
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# Copyright 2009 Viktor Szakats (harbour syenar.net)
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# See COPYING.txt for licensing terms.
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#
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# This make file will detect optional 3rd party components
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# used in Harbour core code. Generic function.
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# ---------------------------------------------------------------
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# USAGE:
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# ON CALL:
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# _DET_DSP_NAME - human readable name of 3rd party component.
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# _DET_VAR_INC_ - variable name containing user component control (typically "HB_WITH_*").
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# _DET_VAR_HAS_ - variable name receiving detection result (typically "HB_HAS_*").
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# _DET_FLT_PLAT - positive and negative platform filters. Prefix negative ones with '!' char.
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# _DET_FLT_COMP - positive and negative compiler filters. Prefix negative ones with '!' char.
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# _DET_INC_DEFP - default location to look at. Not effective in 'HB_BUILD_3RDEXT=no' mode.
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# (you must use absolute paths only.)
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# _DET_INC_LOCL - embedded location to look at.
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# (you must use paths relative to Harbour source tree root.)
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# _DET_INC_HEAD - header filename to look for. Unless looking for a directory, prefix with forward slash.
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# - variable name specified by _DET_VAR_INC_ (typically "HB_WITH_*") containing:
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# (empty) or yes - will enable 3rd party component if found on default locations.
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# no - will disable 3rd party component.
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# force - will forcibly enable 3rd party component, bypassing location checks,
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# HB_HAS_* will have the content '.' (as local dir). In this case user
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# is responsible to pass -I C compiler option manually.
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# local - will choose locally hosted version of 3rd party component.
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# nolocal - will disable using locally hosted version of 3rd party component.
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# <dirlist> - will specify locations to check for the 3rd party component.
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# ON RETURN:
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# - above variables cleared.
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# - _DET_RES_TEXT with human readable detection result.
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# - variable name specified in _DET_VAR_HAS_ (typically "HB_HAS_*") will
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# have any these values:
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# (empty) - we can't use this component
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# <dirlist> - component headers were found at these locations (typically one)
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# - variable name specified in _DET_VAR_HAS_ + "_LOCAL" (typically "HB_HAS_*_LOCAL") will
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# be non-empty if we're using the locally hosted version of the package.
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# show verbose information (empty|yes|very)
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ifneq ($(_DET_OPT_VERB),)
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do_info = $(info ! Component: $(1))
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else
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do_info =
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endif
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# preparing switch to HB_WITH_* variables from HB_INC_*
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ifneq ($($(subst HB_INC_,HB_WITH_,$(_DET_VAR_INC_))),)
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$(_DET_VAR_INC_) := $($(subst HB_INC_,HB_WITH_,$(_DET_VAR_INC_)))
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endif
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ifneq ($(HB_SRC_ROOTPATH),)
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_DET_INC_LOCL := $(HB_SRC_ROOTPATH)$(_DET_INC_LOCL)
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else
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_DET_INC_LOCL := $(realpath $(TOP)$(ROOT)$(_DET_INC_LOCL))
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endif
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_DET_RES_TEXT :=
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ifeq ($($(_DET_VAR_HAS_)),)
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$(_DET_VAR_HAS_)_LOCAL :=
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ifneq ($($(_DET_VAR_INC_)),no)
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_DET_POS := $(filter-out !%,$(_DET_FLT_PLAT))
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_DET_NEG := $(subst !,,$(filter !%,$(_DET_FLT_PLAT)))
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ifneq ($(if $(_DET_POS),$(filter $(HB_PLATFORM),$(_DET_POS)),ok),)
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ifeq ($(filter $(HB_PLATFORM),$(_DET_NEG)),)
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_DET_POS := $(filter-out !%,$(_DET_FLT_COMP))
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_DET_NEG := $(subst !,,$(filter !%,$(_DET_FLT_COMP)))
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ifneq ($(if $(_DET_POS),$(filter $(HB_COMPILER),$(_DET_POS)),ok),)
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ifeq ($(filter $(HB_COMPILER),$(_DET_NEG)),)
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$(_DET_VAR_HAS_) := $($(_DET_VAR_INC_))
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ifeq ($($(_DET_VAR_INC_)),yes)
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$(_DET_VAR_HAS_) :=
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else
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# bypass local check
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ifeq ($($(_DET_VAR_INC_)),force)
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$(_DET_VAR_HAS_) := .
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endif
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endif
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ifeq ($($(_DET_VAR_HAS_)),)
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ifneq ($(HB_BUILD_3RDEXT),no)
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$(_DET_VAR_HAS_) := $(_DET_INC_DEFP)
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endif
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$(_DET_VAR_HAS_) += $(_DET_INC_LOCL)
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else
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ifeq ($($(_DET_VAR_HAS_)),nolocal)
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ifneq ($(HB_BUILD_3RDEXT),no)
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$(_DET_VAR_HAS_) := $(_DET_INC_DEFP)
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endif
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endif
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endif
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ifeq ($($(_DET_VAR_INC_)),local)
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$(_DET_VAR_HAS_) := $(_DET_INC_LOCL)
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endif
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ifneq ($($(_DET_VAR_HAS_)),)
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ifneq ($($(_DET_VAR_HAS_)),.)
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$(_DET_VAR_HAS_) := $(strip $(firstword $(foreach d,$($(_DET_VAR_HAS_)),$(if $(wildcard $(d)$(_DET_INC_HEAD)),$(d),))))
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ifeq ($($(_DET_VAR_HAS_)),)
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' not found
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ifneq ($(HB_HOST_PLAT_UNIX),yes)
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_DET_RES_TEXT := $(_DET_RES_TEXT). Configure with $(subst HB_INC_,HB_WITH_,$(_DET_VAR_INC_)).
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endif
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$(call do_info,$(_DET_RES_TEXT))
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else
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# detect if the component was found in locally hosted dir
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ifneq ($(_DET_INC_LOCL),)
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ifneq ($(filter $(_DET_INC_LOCL),$($(_DET_VAR_HAS_))),)
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$(_DET_VAR_HAS_)_LOCAL := (local)
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endif
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endif
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' found in $($(_DET_VAR_HAS_)) $($(_DET_VAR_HAS_)_LOCAL)
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ifeq ($(_DET_OPT_VERB),very)
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$(call do_info,$(_DET_RES_TEXT))
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endif
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endif
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endif
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' location not specified
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$(call do_info,$(_DET_RES_TEXT))
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endif
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' not supported with $(HB_COMPILER) compiler
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$(call do_info,$(_DET_RES_TEXT))
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endif
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' not supported with $(HB_COMPILER) compiler
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$(call do_info,$(_DET_RES_TEXT))
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endif
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' not supported on $(HB_PLATFORM) platform
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$(call do_info,$(_DET_RES_TEXT))
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endif
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' not supported on $(HB_PLATFORM) platform
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$(call do_info,$(_DET_RES_TEXT))
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endif
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_DET_POS :=
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_DET_NEG :=
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else
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_DET_RES_TEXT := '$(_DET_DSP_NAME)' explicitly disabled
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$(call do_info,$(_DET_RES_TEXT))
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endif
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endif
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export $(_DET_VAR_HAS_)
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export $(_DET_VAR_HAS_)_LOCAL
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_DET_DSP_NAME :=
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_DET_VAR_INC_ :=
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_DET_VAR_HAS_ :=
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_DET_FLT_PLAT :=
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_DET_FLT_COMP :=
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_DET_INC_DEFP :=
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_DET_INC_LOCL :=
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_DET_INC_HEAD :=
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