diff options
Diffstat (limited to 'build/config.mk')
| -rw-r--r-- | build/config.mk | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/build/config.mk b/build/config.mk new file mode 100644 index 0000000..153838d --- /dev/null +++ b/build/config.mk @@ -0,0 +1,62 @@ +# Copyright © Tavian Barnes <tavianator@tavianator.com> +# SPDX-License-Identifier: 0BSD + +# Makefile that implements `./configure` + +include build/prelude.mk +include build/exports.mk + +# All configuration steps +config: gen/config.mk gen/config.h +.PHONY: config + +# Makefile fragments generated by `./configure` +MKS := \ + gen/vars.mk \ + gen/flags.mk \ + gen/deps.mk \ + gen/pkgs.mk + +# The main configuration file, which includes the others +gen/config.mk: ${MKS} + ${MSG} "[ GEN] $@" + @printf '# %s\n' "$@" >$@ + @printf 'include %s\n' ${.ALLSRC} >>$@ + ${VCAT} gen/config.mk +.PHONY: gen/config.mk + +# Saves the configurable variables +gen/vars.mk:: + @${MKDIR} ${@D} + ${MSG} "[ GEN] $@" + @printf '# %s\n' "$@" >$@ + @printf 'PREFIX := %s\n' "$$XPREFIX" >>$@ + @printf 'MANDIR := %s\n' "$$XMANDIR" >>$@ + @printf 'OS := %s\n' "$${OS:-$$(uname)}" >>$@ + @printf 'CC := %s\n' "$$XCC" >>$@ + @printf 'INSTALL := %s\n' "$$XINSTALL" >>$@ + @printf 'MKDIR := %s\n' "$$XMKDIR" >>$@ + @printf 'PKG_CONFIG := %s\n' "$$XPKG_CONFIG" >>$@ + @printf 'RM := %s\n' "$$XRM" >>$@ + ${VCAT} $@ + +# Sets the build flags. This depends on vars.mk and uses a recursive make so +# that the default flags can depend on variables like ${OS}. +gen/flags.mk: gen/vars.mk + @+${MAKE} -sf build/flags.mk $@ +.PHONY: gen/flags.mk + +# Check for dependency generation support +gen/deps.mk: gen/flags.mk + @+${MAKE} -sf build/deps.mk $@ +.PHONY: gen/deps.mk + +# Auto-detect dependencies and their build flags +gen/pkgs.mk: gen/flags.mk + @+${MAKE} -sf build/pkgs.mk $@ +.PHONY: gen/pkgs.mk + +# Compile-time feature detection +gen/config.h: gen/config.mk + @+${MAKE} -sf build/header.mk $@ +.PHONY: gen/config.h |