cosmopolitan/examples/package/build.mk

74 lines
2.3 KiB
Makefile

#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
#
# SYNOPSIS
#
# Your package build config for executable programs
#
# DESCRIPTION
#
# We assume each .c file in this directory has a main() function, so
# that it becomes as easy as possible to write lots of tiny programs
#
# EXAMPLE
#
# make o//examples/package
# o/examples/package/program.com
#
# AUTHORS
#
# %AUTHOR%
PKGS += EXAMPLES_PACKAGE
# Reads into memory the list of files in this directory.
EXAMPLES_PACKAGE_FILES := $(wildcard examples/package/*)
# Defines sets of files without needing further iops.
EXAMPLES_PACKAGE_SRCS = $(filter %.c,$(EXAMPLES_PACKAGE_FILES))
EXAMPLES_PACKAGE_HDRS = $(filter %.h,$(EXAMPLES_PACKAGE_FILES))
EXAMPLES_PACKAGE_COMS = $(EXAMPLES_PACKAGE_OBJS:%.o=%.com)
EXAMPLES_PACKAGE_BINS = \
$(EXAMPLES_PACKAGE_COMS) \
$(EXAMPLES_PACKAGE_COMS:%=%.dbg)
# Remaps source file names to object names.
# Also asks a wildcard rule to automatically run tool/build/zipobj.c
EXAMPLES_PACKAGE_OBJS = \
$(EXAMPLES_PACKAGE_SRCS:%.c=o/$(MODE)/%.o) \
$(EXAMPLES_PACKAGE_SRCS:%=o/$(MODE)/%.zip.o)
# Lists packages whose symbols are or may be directly referenced here.
# Note that linking stubs is always a good idea due to synthetic code.
EXAMPLES_PACKAGE_DIRECTDEPS = \
EXAMPLES_PACKAGE_LIB \
LIBC_STDIO \
LIBC_STUBS \
LIBC_TINYMATH
# Evaluates the set of transitive package dependencies.
EXAMPLES_PACKAGE_DEPS := \
$(call uniq,$(foreach x,$(EXAMPLES_PACKAGE_DIRECTDEPS),$($(x))))
$(EXAMPLES_PACKAGE_A).pkg: \
$(EXAMPLES_PACKAGE_OBJS) \
$(foreach x,$(EXAMPLES_PACKAGE_DIRECTDEPS),$($(x)_A).pkg)
# Specifies how to build programs as ELF binaries with DWARF debug info.
# @see build/rules.mk for definition of rule that does .com.dbg -> .com
o/$(MODE)/examples/package/%.com.dbg: \
$(EXAMPLES_PACKAGE_DEPS) \
o/$(MODE)/examples/package/%.o \
$(CRT) \
$(APE)
@$(APELINK)
# Invalidates objects in package when makefile is edited.
$(EXAMPLES_PACKAGE_OBJS): examples/package/build.mk
# Creates target building everything in package and subpackages.
.PHONY: o/$(MODE)/examples/package
o/$(MODE)/examples/package: \
o/$(MODE)/examples/package/lib \
$(EXAMPLES_PACKAGE_BINS)