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# build configuration file
# ?= is used to allow overriding through environment variables or from an
# upper-level Makefile. change ?= to = when modifying values.
# $(shell) should only be used in simply expanded variables (using :=), so
# we can't just use ?=. we check if the variable's empty before setting it.
# RATIONALE
# This package doesn't use autoconf and automake, which are ugly both in
# design and implementation, and although they may support hundreds of Unix
# variants, each of them broken in its own special way, they don't help very
# much on Windows and OS X.
#
# To make porting as simple as possible when autoconf's extensible database
# of kludges and workarounds isn't available, a "worse is better" philosophy
# was adopted: even if the generic config.mk won't work on strange platforms,
# it is so small and simple that the platform's users, who are knowledgeable
# about it and can experiment with it, shouldn't have a problem changing
# options or even replacing the entire build system.
#
# The project's philosophy is that platform-specific tweaks and workarounds
# should be provided, but kept as self-contained as possible. For example,
# config.mk should stay platform-agnostic, and platforms needing specific
# options should have them in separate files.
# PROGRAMS
CC = gcc
INSTALL = install
RM = rm -f
ifeq ($(LUA),)
LUA := $(if $(shell lua5.1 -e 'print(true)' 2>&-),lua5.1,lua)
endif
# INSTALLATION
PREFIX ?= /usr/local
BINDIR ?= $(PREFIX)/bin
DATADIR ?= $(PREFIX)/share/ult
# 'make install' prefixes destinations with $(DESTDIR) when installing. This
# can be used for staged installs and binary package creation.
DESTDIR =
# COMPILATION FLAGS
CFLAGS ?= -O2 -Wall
LDFLAGS ?=
ifeq ($(LUA_CFLAGS),)
LUA_CFLAGS := $(or $(shell pkg-config --silence-errors --cflags lua5.1),$(shell pkg-config --silence-errors --cflags 'lua >= 5.1'))
endif
ifeq ($(LUA_LDFLAGS),)
LUA_LDFLAGS := $(or $(shell pkg-config --silence-errors --libs lua5.1),$(shell pkg-config --silence-errors --libs 'lua >= 5.1'),-llua)
endif
ifeq ($(SDL_CFLAGS),)
SDL_CFLAGS := $(shell sdl-config --cflags)
endif
ifeq ($(SDL_LDFLAGS),)
SDL_LDFLAGS := $(or $(shell sdl-config --libs),-lSDL)
endif
ifeq ($(FREETYPE_CFLAGS),)
FREETYPE_CFLAGS := $(shell freetype-config --cflags)
endif
ifeq ($(FREETYPE_LDFLAGS),)
FREETYPE_LDFLAGS := $(or $(shell freetype-config --libs),-lfreetype)
endif
SDL_IMAGE_CFLAGS ?=
SDL_IMAGE_LDFLAGS ?= -lSDL_image
SDL_MIXER_CFLAGS ?=
SDL_MIXER_LDFLAGS ?= -lSDL_mixer
GL_LDFLAGS ?= -lGL
GLU_LDFLAGS ?= -lGLU
ZLIB_CFLAGS ?=
ZLIB_LDFLAGS ?= -lz
# LUAJIT
# JITLIB is the directory containing opt.lua and other LuaJIT .lua files.
# Don't forget to set LUA_LDFLAGS and LUA_CFLAGS to LuaJIT libs and includes.
ifeq ($(JITLIB),)
JITLIB := $(dir $(wildcard /usr/share/lua/jit/opt.lua))
endif
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