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https://github.com/haproxy/haproxy.git
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69e7b7f677
Some macros and functions are barely understandable and are only used to iterate over known options from the use_opts list. Better assign them a name and move them into a dedicated file to clean the makefile a little bit. Now at least "use_opts" only appears once, where it is defined. This also allowed to completely remove the BUILD_FEATURES macro that caused some confusion until previous commit.
33 lines
1.8 KiB
Makefile
33 lines
1.8 KiB
Makefile
# this contains various functions and macros used to manipulate USE_* options
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# and their flags
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# Depending on the target platform, some options are set, as well as some
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# CFLAGS and LDFLAGS. All variables pre-set here will not appear in the build
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# options string. They may be set to any value, but are historically set to
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# "implicit" which eases debugging. You should not have to change anything
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# there unless you're adding support for a new platform.
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default_opts = $(foreach name,$(1),$(eval $(name)=implicit))
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# Return USE_xxx=$(USE_xxx) if the variable was set from the environment or the
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# command line.
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ignore_implicit = $(if $(subst environment,,$(origin $(1))), \
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$(if $(subst command line,,$(origin $(1))),, \
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$(1)=$($(1))), \
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$(1)=$($(1))) \
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# This macro collects all USE_* values except those set to "implicit". This
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# is used to report a list of all flags which were used to build this version.
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# Do not assign anything to it.
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build_options = $(foreach opt,$(use_opts),$(call ignore_implicit,$(opt)))
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# Make a list of all known features with +/- prepended depending on their
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# activation status. Must be a macro so that dynamically enabled ones are
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# evaluated with their current status.
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build_features = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(if $(USE_$(opt)),+$(opt),-$(opt)))
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# This returns a list of -DUSE_* for all known USE_* that are set
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opts_as_defines = $(foreach opt,$(use_opts),$(if $($(opt)),-D$(opt),))
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# Lists all enabled or disabled options without the "USE_" prefix
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enabled_opts = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(if $(USE_$(opt)),$(opt),))
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disabled_opts = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(if $(USE_$(opt)),,$(opt)))
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