From 6034fe23fdcf607ecf53bb97223d84864b3af461 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Fri, 15 Jul 2022 13:42:31 +0200
Subject: Add makedeps.pl.

---
 .gitignore  |  3 ++-
 Makefile    | 29 ++++++++++++++++-------------
 makedeps.pl | 20 ++++++++++++++++++++
 3 files changed, 38 insertions(+), 14 deletions(-)
 create mode 100644 makedeps.pl

diff --git a/.gitignore b/.gitignore
index 44b07c6..e034102 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
-/build/
+/b/
 /misc/
 TAGS
+deps.mk
 *~
 *.db
diff --git a/Makefile b/Makefile
index 1ab1213..df0a190 100644
--- a/Makefile
+++ b/Makefile
@@ -1,28 +1,31 @@
-B = build/default/
-
 C = c/main.cpp
 PL = pl/cfg.pl pl/episode_data.pl pl/local_episodes.pl pl/track_episodes.pl
-OBJ = $(B)common.obj $(B)datalistview.obj $(B)episodelistview.obj $(B)listview.obj $(B)pl.obj $(B)resource.obj
+OBJ = b/common.obj b/datalistview.obj b/episodelistview.obj b/listview.obj b/pl.obj b/resource.obj
 
 CC = swipl-ld
 CFLAGS += -Wall -Wpedantic -O -cc-options,-std=c++17 -ld-options,-mwindows
 CFLAGS += -DUNICODE -D_UNICODE
 LDFLAGS += -lcomctl32 -luxtheme
 
-all: $(B)EpisodeBrowser.exe
+all: b/EpisodeBrowser.exe
 	cp $< "C:\Users\John\Desktop\Delat"
 
-$(B)EpisodeBrowser.exe: $(C) $(OBJ) $(PL) c/*.h Makefile
+clean:
+	rm -fr b/EpisodeBrowser.exe b/*.obj
+
+TAGS: c/*.cpp c/*.h pl/*.pl
+	etags c/*.cpp c/*.h -lprolog pl/*.pl
+
+deps.mk: c/*.cpp
+	perl makedeps.pl
+
+b/EpisodeBrowser.exe: Makefile deps.mk $(C) $(OBJ) $(PL) c/*.h
 	$(CC) -v $(CFLAGS) $(LDFLAGS) -goal true -o $@ $(C) $(OBJ) $(PL)
 
-$(B)resource.obj: c/resource.h c/resource.rc c/application.manifest
-	windres -i c/resource.rc -o $(B)resource.obj
+b/resource.obj: c/resource.h c/resource.rc c/application.manifest
+	windres -i c/resource.rc -o b/resource.obj
 
-$(B)%.obj: c/%.cpp c/*.h
+b/%.obj: c/%.cpp
 	$(CC) -c $(CFLAGS) -o $@ $<
 
-TAGS: c/*.cpp c/*.h pl/*.pl
-	etags c/*.cpp c/*.h -lprolog pl/*.pl
-
-clean:
-	rm -fr $(B)EpisodeBrowser.exe $(B)*.obj
+-include deps.mk
diff --git a/makedeps.pl b/makedeps.pl
new file mode 100644
index 0000000..8956e81
--- /dev/null
+++ b/makedeps.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+
+open my $fh, ">", "deps.mk";
+print $fh "# This file is generated by makedeps.pl.\n";
+while (my $f = glob("c/*.cpp")) {
+	open my $gh, "<", $f;
+	$f =~ s,^c/,,;
+	$f =~ s/\.cpp$//;
+	print $fh "b/$f.obj: c/$f.cpp";
+	while ($_ = <$gh>) {
+		next if /^$/;
+		goto n if not /#/;
+		print $fh " c/$1" if /^#include\s+"([^"]+)"/;
+	}
+      n:
+	print $fh "\n";
+}
-- 
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