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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:18:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:18:05 +0000
commitb46aad6df449445a9fc4aa7b32bd40005438e3f7 (patch)
tree751aa858ca01f35de800164516b298887382919d /include/make/options.mk
parentInitial commit. (diff)
downloadhaproxy-b46aad6df449445a9fc4aa7b32bd40005438e3f7.tar.xz
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Adding upstream version 2.9.5.upstream/2.9.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--include/make/options.mk52
1 files changed, 52 insertions, 0 deletions
diff --git a/include/make/options.mk b/include/make/options.mk
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+# this contains various functions and macros used to manipulate USE_* options
+# and their flags
+
+# Depending on the target platform, some options are set, as well as some
+# CFLAGS and LDFLAGS. All variables pre-set here will not appear in the build
+# options string. They may be set to any value, but are historically set to
+# "implicit" which eases debugging. You should not have to change anything
+# there unless you're adding support for a new platform.
+default_opts = $(foreach name,$(1),$(eval $(name)=implicit))
+
+# Return USE_xxx=$(USE_xxx) if the variable was set from the environment or the
+# command line.
+ignore_implicit = $(if $(subst environment,,$(origin $(1))), \
+ $(if $(subst command line,,$(origin $(1))),, \
+ $(1)=$($(1))), \
+ $(1)=$($(1))) \
+
+# This macro collects all USE_* values except those set to "implicit". This
+# is used to report a list of all flags which were used to build this version.
+# Do not assign anything to it.
+build_options = $(foreach opt,$(use_opts),$(call ignore_implicit,$(opt)))
+
+# Make a list of all known features with +/- prepended depending on their
+# activation status. Must be a macro so that dynamically enabled ones are
+# evaluated with their current status.
+build_features = $(foreach opt,$(patsubst USE_%,%,$(sort $(use_opts))),$(if $(USE_$(opt)),+$(opt),-$(opt)))
+
+# This returns a list of -DUSE_* for all known USE_* that are set
+opts_as_defines = $(foreach opt,$(use_opts),$(if $($(opt)),-D$(opt),))
+
+# Lists all enabled or disabled options without the "USE_" prefix
+enabled_opts = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(if $(USE_$(opt)),$(opt),))
+disabled_opts = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(if $(USE_$(opt)),,$(opt)))
+
+# preset all XXX_{INC,LIB,CFLAGS,LDFLAGS,SRC} variables to empty for $1=XXX
+reset_opt_vars = $(foreach name,INC LIB CFLAGS LDFLAGS SRC,$(eval $(1)_$(name)=))
+
+# preset all variables for all supported build options among use_opts
+reset_opts_vars = $(foreach opt,$(patsubst USE_%,%,$(use_opts)),$(call reset_opt_vars,$(opt)))
+
+# append $(1)_{C,LD}FLAGS into OPTIONS_{C,LD}FLAGS if not empty
+define collect_opt_flags
+ ifneq ($$($(1)_CFLAGS),)
+ OPTIONS_CFLAGS += $$($(1)_CFLAGS)
+ endif
+ ifneq ($$($(1)_LDFLAGS),)
+ OPTIONS_LDFLAGS += $$($(1)_LDFLAGS)
+ endif
+endef
+
+# collect all enabled USE_foo's foo_{C,LD}FLAGS into OPTIONS_{C,LD}FLAGS
+collect_opts_flags = $(foreach opt,$(enabled_opts),$(eval $(call collect_opt_flags,$(opt))))