90 lines
2.2 KiB
Makefile
90 lines
2.2 KiB
Makefile
#
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# Utility macros for the rest of the Makefiles.
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#
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Ifnot=$(if $(1),$(3),$(2))
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Ifndef=$(call Ifnot,$($(1)),$(2),$(3))
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# Match and expand a list of variables by pattern.
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Wildvar=$(foreach v,$(filter $(1),$(.VARIABLES)),$($(v)))
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# Read a list of words from file and prepend each with the
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# directory of the file.
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List=$(addprefix $(dir $(1)),$(file < $(1)))
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define Propogate_flags =
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opts+=$$($(1)_CFLAGS)
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libs+=$$($(1)_LDFLAGS)
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endef
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# Set library's _CFLAGS and _LDFLAGS from some command.
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# Automatically propogates the flags too.
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# 1: variable prefix (e.g. CURL)
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# 2: start of command (e.g. curl-config)
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# --- optional ----
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# 3: CFLAGS command arguments, default '--cflags'
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# 4: LDFLAGS command arguments, default '--libs'
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# 5: common command arguments at the end of command
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define Configure =
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$(1)_CFLAGS?=$$(shell $(2) $(or $(3),--cflags) $(5))
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$(1)_LDFLAGS?=$$(shell $(2) $(or $(4),--libs) $(5))
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$(call Propogate_flags,$(1))
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endef
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# Configure library with pkg-config. The package name is
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# taken from a _PKGCONFIG variable.
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# 1: variable prefix
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#
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# LIBGME_PKGCONFIG=libgme
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# $(eval $(call Use_pkg_config,LIBGME))
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define Use_pkg_config =
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$(call Configure,$(1),$(PKG_CONFIG),,,$($(1)_PKGCONFIG))
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endef
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# Check disabling flag and configure package in one step
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# according to delimited argument.
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# (There is only one argument, but it split by slash.)
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# 1/: short form library name (uppercase). This is
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# prefixed with 'NO' and 'HAVE_'. E.g. NOGME, HAVE_GME
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# /2: package name (e.g. libgme)
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# /3: variable prefix
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#
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# The following example would check if NOGME is not
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# defined before attempting to define LIBGME_CFLAGS and
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# LIBGME_LDFLAGS as with Use_pkg_config.
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#
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# $(eval $(call Check_pkg_config,GME/libgme/LIBGME))
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define Check_pkg_config =
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_p:=$(subst /, ,$(1))
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_v1:=$$(word 1,$$(_p))
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_v2:=$$(or $$(word 3,$$(_p)),$$(_v1))
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ifndef NO$$(_v1)
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$$(_v2)_PKGCONFIG?=$$(word 2,$$(_p))
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$$(eval $$(call Use_pkg_config,$$(_v2)))
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opts+=-DHAVE_$$(_v1)
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endif
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endef
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# $(call Prefix,gcc)
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Prefix=$(if $(PREFIX),$(PREFIX)-)$(1)
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Echo=
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Echo_name=
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Print=
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ifndef SILENT
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Echo=@echo "$(1)"
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ifndef ECHO
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ifndef NOECHOFILENAMES
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Echo_name=$(call Echo,-- $(1) ...)
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endif
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endif
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ifndef MAKE_RESTARTS
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ifndef destructive
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Print=$(info $(1))
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endif
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endif
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endif
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.=$(call Ifndef,ECHO,@)
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