From 1ce6031a42d22a0f2be566e1873377ab2cda66c8 Mon Sep 17 00:00:00 2001
From: Danny Holman <dholman@gymli.org>
Date: Fri, 30 Aug 2024 01:31:27 -0500
Subject: Makefile: retool the build system

Retool the build system to be more modular and more flexible. Move all
subsystems into separate directories and create make.config files that
will conditionally compile based on information from the root Makefile.

Signed-off-by: Danny Holman <dholman@gymli.org>
---
 Makefile | 72 +++++++++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 51 insertions(+), 21 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 6839dd9..b8f8a08 100644
--- a/Makefile
+++ b/Makefile
@@ -1,46 +1,76 @@
 CC?=gcc
+LD?=ld
 INCLUDE?=-Iinclude
 CFLAGS?=-O0
 LDFLAGS?=
-RENDER?=render-vulkan
-PLATFORM?=linux
+LIBS?=
+PREFIX?=/usr/local/
+
+HEADLESS?=0
+RENDER_API?=vulkan
+NETWORK?=1
 
 # -- Do not edit below this line --
 
-VERSION:="$(shell git describe --abbrev=4 --dirty --always --tags)"
+MAJOR:=0
+MINOR:=55
+REV:=
+VERSION:="$(MAJOR).$(MINOR)$(REV)"
+
+LIBRARY:=librune.so.$(MAJOR).$(MINOR)
+SONAME:=librune.so.$(MAJOR)
+SYMFILE:=librune.sym
+
+LIBDIR:=$(DESTDIR)$(PREFIX)lib/
+BINDIR:=$(DESTDIR)$(PREFIX)bin/
+INCLUDEDIR:=$(DESTDIR)$(PREFIX)include/rune/
+
 CC:=$(CC)
 INCLUDE:=$(INCLUDE)
 CFLAGS:=$(CFLAGS) $(INCLUDE) -Wall -Wextra -DVERSION=\"$(VERSION)\" -ggdb -fstack-protector-all -fPIC
 LDFLAGS:=$(LDFLAGS) -shared
 
-COREDIR:=core
-RENDERDIR:=$(RENDER)
-ENGINE:=librune.so
-
-include $(COREDIR)/make.config $(RENDERDIR)/make.config
+.PHONY: all check clean install
+.SUFFIXES: .o .c
 
-LDFLAGS:=$(LDFLAGS) $(RENDER_LDFLAGS) $(CORE_LDFLAGS)
-LIBS:=$(LIBS) $(RENDER_LIBS) $(CORE_LIBS)
-OBJS:=$(RENDER_OBJS) $(CORE_OBJS)
+OBJS:=core/callbacks.o \
+      core/init.o \
+      core/logging.o \
 
-.PHONY: all clean install install-headers
-.SUFFIXES: .o .c
+-include graphics/make.config
+-include sound/make.config
+-include network/make.config
 
-all: $(ENGINE)
+all: $(LIBRARY)
 
-$(ENGINE): $(OBJS)
-	@$(CC) -o $@ $(LIBS) $(LDFLAGS) $?
+$(LIBRARY): $(OBJS)
+	@$(LD) -soname $(SONAME) -o $@ $(LIBS) $(LDFLAGS) $?
 	@echo [LD] $@
-	@objcopy --only-keep-debug $(ENGINE) $(ENGINE:.so=.sym)
-	@strip -s $(ENGINE)
-	@objcopy --add-gnu-debuglink=$(ENGINE:.so=.sym) $(ENGINE)
-	@echo [strip] $(ENGINE)
+	@objcopy --only-keep-debug $(LIBRARY) $(SYMFILE)
+	@objcopy --add-gnu-debuglink=$(SYMFILE) $(LIBRARY)
+	@strip -s $(LIBRARY)
+	@echo [strip] $(LIBRARY)
 
 .c.o:
 	@$(CC) -MD -c $< -o $@ $(CFLAGS) $(INCLUDE)
 	@echo [CC] $@
 
+check:
+
 clean:
-	$(RM) $(OBJS) $(OBJS:o=.d)
+	$(RM) $(OBJS) $(OBJS:.o=.d) $(LIBRARY) $(SYMFILE) tags TAGS
+
+install:
+	install -d $(LIBDIR)
+	install -d $(BINDIR)
+	install -d $(INCLUDEDIR)
+	install -d $(INCLUDEDIR)$(RENDER_API)
+	install -p -m 644 include/rune/*.h $(INCLUDEDIR)
+	install -p -m 644 include/rune/$(RENDER_API)/*.h $(INCLUDEDIR)$(RENDER_API)
+	install -p -m 755 $(LIBRARY) $(LIBDIR)
+	ln -s $(LIBDIR)$(LIBRARY) $(LIBDIR)$(SONAME)
+
+tags:
+	ctags -R --kinds-c=+pLl --fields=+S include/ core/ render-vulkan/
 
 -include $(OBJS:.o=.d)
-- 
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