From bbaf58c9fd0f485266d86868dc35f1d2be3589cd Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sun, 26 Jun 2022 16:24:13 -0700
Subject: Significant changes, and a working "ISA" that just computes fib(n).

---
 Makefile | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 9e84cc8..ed96817 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,11 @@ CXX ?= g++
 IWYU ?= iwyu
 CHRONIC ?= chronic
 
-CXXFLAGS := -Wall -Werror -std=c++20 -fPIC -iquote . ${OPTIMIZE} ${DEBUG}
+PKGS := fmt
+PKG_FLAGS := $(shell pkg-config --cflags ${PKGS})
+PKG_LIBS := -Wl,--push-state,--as-needed $(shell pkg-config --libs ${PKGS}) -Wl,--pop-state
+
+CXXFLAGS := -Wall -Werror -std=c++20 -fPIC -iquote . ${PKG_FLAGS} ${OPTIMIZE} ${DEBUG}
 
 .DEFAULT_GOAL := all
 
@@ -24,7 +28,7 @@ endef
 export GITTAGCPP
 
 ifneq ($(shell which ${IWYU}),)
-iwyu = ${CHRONIC} ${IWYU} -Xiwyu --error ${CXXFLAGS} $(1)
+iwyu = ${CHRONIC} ${IWYU} -Xiwyu --error -Xiwyu --mapping_file=tools/iwyu.imp ${CXXFLAGS} $(1)
 else
 $(warning Not using IWYU)
 iwyu =
@@ -42,29 +46,32 @@ $(call libname,$(1).a): $(patsubst %.cpp,build/%.o,$(wildcard $(1)/*.cpp))
 
 $(call libname,$(1).so): $(patsubst %.cpp,build/%.o,$(wildcard $(1)/*.cpp))
 	@mkdir -p $$(dir $$@)
-	$${CXX} $${CXXFLAGS} -shared -o $$@ $$+
+	$${CXX} $${CXXFLAGS} -shared -o $$@ $$+ ${PKG_LIBS}
 
 PARTARS += $(call libname,$(1).a)
 PARTSOS += $(call libname,$(1).so)
 
-else
+endif
 
-$(call libname,$(1).cpp):
+ifdef iwyu
+
+build/$(1)/iwyu.cpp:
 	@mkdir -p $$(dir $$@)
 	@tools/iwyu-header $$(wildcard $(1)/*.h) > $$@
 	@$$(call iwyu,$$@)
-.PHONY: $(call libname,$(1).cpp)
+.PHONY: build/$(1)/iwyu.cpp
 
-EXTRA_TARGETS += $(call libname,$(1).cpp)
+IWYU_CPPS += build/$(1)/iwyu.cpp
 
 endif
 
 endef
 
 PARTS := $(patsubst ./%,%,$(shell find -mindepth 1 -type d -\( -name .\* -prune -o -name build -prune -o -name tools -prune -o -print -\)))
+
 PARTARS :=
 PARTSOS :=
-EXTRA_TARGETS :=
+IWYU_CPPS :=
 
 $(foreach part,${PARTS},$(eval $(call mklib,${part})))
 
@@ -73,7 +80,7 @@ MAINOBJS += build/git-tag.o
 
 $(info )
 
-all: ${EXTRA_TARGETS} issim issim-static
+all: ${IWYU_CPPS} issim issim-static
 
 issim: build/issim-dynamic
 	@ln -sf $< $@
@@ -85,11 +92,11 @@ issim-static: build/issim-static
 
 build/issim-dynamic: ${MAINOBJS} ${PARTSOS}
 	@mkdir -p $(dir $@)
-	${CXX} ${CXXFLAGS} -o $@ $+
+	${CXX} ${CXXFLAGS} -o $@ $+ ${PKG_LIBS}
 
 build/issim-static: ${MAINOBJS} ${PARTARS}
 	@mkdir -p $(dir $@)
-	${CXX} ${CXXFLAGS} -o $@ $+
+	${CXX} ${CXXFLAGS} -o $@ $+ ${PKG_LIBS}
 
 clean:
 	rm -rf build issim issim-static
-- 
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