Makefile: Support out-of-tree builds.
[preload-hacks] / Makefile
1 ### -*-makefile-*-
2 ###
3 ### Makefile for preload-hacks
4 ###
5 ### (c) 2008 Straylight/Edgeware
6 ###
7
8 ###----- Licensing notice ---------------------------------------------------
9 ###
10 ### This file is part of the preload-hacks package.
11 ###
12 ### Preload-hacks are free software; you can redistribute it and/or modify
13 ### them under the terms of the GNU General Public License as published by
14 ### the Free Software Foundation; either version 2 of the License, or (at
15 ### your option) any later version.
16 ###
17 ### Preload-hacks are distributed in the hope that it will be useful, but
18 ### WITHOUT ANY WARRANTY; without even the implied warranty of
19 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
20 ### Public License for more details.
21 ###
22 ### You should have received a copy of the GNU General Public License along
23 ### with preload-hacks; if not, write to the Free Software Foundation, Inc.,
24 ### 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25
26 srcdir = .
27 PACKAGE = preload-hacks
28 VERSION := $(shell cd $(srcdir) && ./auto-version)
29
30 VPATH = $(srcdir)
31 .SECONDEXPANSION: #sorry
32
33 ###--------------------------------------------------------------------------
34 ### Configuration.
35
36 ## Where to install things.
37 prefix = /usr/local
38 exec_prefix = ${prefix}
39 bindir = ${exec_prefix}/bin
40 libdir = ${exec_prefix}/lib
41 datadir = ${prefix}/share
42 mandir = ${datadir}/man
43 man1dir = ${mandir}/man1
44
45 ## Private installation tree for packagers.
46 DESTDIR =
47
48 ###--------------------------------------------------------------------------
49 ### Build parameters.
50
51 ## Mess with these if you like.
52 CC = gcc
53 LD = gcc
54 CFLAGS = -O2 -g -Wall
55 LDFLAGS =
56 LDLIBS = -ldl
57 INSTALL = install
58 INST_BIN = $(INSTALL) -c -m755
59 INST_LIB = $(INSTALL) -c -m644
60 INST_MAN = $(INSTALL) -c -m644
61 INST_BIN = $(INSTALL) -c -m755
62 MKDIRS = $(INSTALL) -d -m755
63
64 ## Probably best if you leave these alone.
65 REAL_CFLAGS = $(CFLAGS) -fPIC -MD
66 REAL_LDFLAGS = $(LDFLAGS) -shared
67
68 ## Allow user overrides for this stuff.
69 -include config.mk
70
71 ###--------------------------------------------------------------------------
72 ### Quiet building.
73
74 ## Verbosity.
75 V = 0
76 v_tag = $(call v_tag_$V,$1)
77 v_tag_0 = @printf " %-8s %s\n" "$1" "$@";
78 V_AT = $(V_AT_$V)
79 V_AT_0 = @
80
81 ###--------------------------------------------------------------------------
82 ### Main targets.
83
84 ## noip
85 HACKS += noip
86 noip_SOURCES = noip.c
87
88 ## uopen
89 HACKS += uopen
90 uopen_SOURCES = uopen.c
91
92 ## Sources.
93 ALL_SOURCES = $(foreach h,$(HACKS),$($h_SOURCES))
94 DISTFILES += $(ALL_SOURCES)
95
96 ## Libraries.
97 LIBS += $(addsuffix .so, $(HACKS))
98 TARGETS += $(LIBS)
99
100 ## Scripts.
101 SCRIPTS = $(HACKS)
102 TARGETS += $(SCRIPTS)
103 DISTFILES += withlib.in
104
105 ## Manual pages.
106 MAN1 += $(addsuffix .1, $(HACKS))
107 DISTFILES += $(MAN1)
108
109 ###--------------------------------------------------------------------------
110 ### Distribution arrangements.
111
112 ## Names.
113 distdir = $(PACKAGE)-$(VERSION)
114 DISTTAR = $(distdir).tar.gz
115
116 ## Distribute the build utilities.
117 DISTFILES += Makefile
118 DISTFILES += auto-version
119
120 ## Documentation.
121 DISTFILES += README
122
123 ## Licensing.
124 DISTFILES += COPYING
125
126 ## Debian.
127 debpkg = noip uopen
128 DISTFILES += debian/changelog debian/copyright
129 DISTFILES += debian/control debian/rules debian/compat
130 DISTFILES += debian/source/format
131 DISTFILES += $(patsubst %, debian/%.install, $(debpkg))
132 DISTFILES += $(patsubst %, debian/%.lintian-overrides, \
133 $(debpkg))
134
135 ###--------------------------------------------------------------------------
136 ### Building.
137
138 all:: $(TARGETS)
139 .PHONY: ALL
140
141 CLEAN += $(TARGETS)
142 CLEAN += *.o *.d
143 clean::
144 rm -f $(CLEAN)
145 .PHONY: clean
146
147 ## Building sources.
148 %.o: %.c
149 $(call v_tag,CC)$(CC) -c $(REAL_CFLAGS) $< -o $@
150
151 ## Constructing preload hacks.
152 $(addsuffix .so,$(HACKS)): %.so: $$(patsubst %.c,%.o,$$($$*_SOURCES))
153 $(call v_tag,LD)$(LD) $(REAL_LDFLAGS) $< $(LDLIBS) -o $@
154
155 ## Constructing the scripts.
156 $(SCRIPTS): %: withlib.in
157 $(call v_tag,GEN)sed "s/@lib@/$@/" $(srcdir)/withlib.in >$@.new && \
158 chmod +x $@.new && mv $@.new $@
159
160 -include $(patsubst %.c,%d,$(ALL_SOURCES))
161
162 ###--------------------------------------------------------------------------
163 ### Installation.
164
165 install: all
166 $(MKDIRS) $(DESTDIR)$(bindir)
167 $(INST_BIN) $(SCRIPTS) $(DESTDIR)$(bindir)
168 $(MKDIRS) $(DESTDIR)$(libdir)
169 $(INST_BIN) $(LIBS) $(DESTDIR)$(libdir)
170 $(MKDIRS) $(DESTDIR)$(man1dir)
171 $(INST_MAN) $(addprefix $(srcdir)/,$(MAN1)) $(DESTDIR)$(man1dir)
172 .PHONY: install
173
174 uninstall:
175 rm -f $(addprefix $(DESTDIR)$(libdir)/, $(LIBS))
176 rm -f $(addprefix $(DESTDIR)$(bindir)/, $(SCRIPTS))
177 rm -f $(addprefix $(DESTDIR)$(man1dir)/, $(MAN1))
178 .PHONY: uninstall
179
180 ###--------------------------------------------------------------------------
181 ### Distribution.
182
183 distdir:
184 rm -rf $(distdir)
185 mkdir $(distdir)
186 echo $(VERSION) >$(distdir)/RELEASE
187 for i in $(DISTFILES); do \
188 case "$$i" in \
189 */*) \
190 d=$${i%/*} && $(MKDIRS) $(distdir)/$$d || exit 1 \
191 ;; \
192 esac; \
193 cp $(srcdir)/$$i $(distdir)/$$i || exit 1; \
194 done
195 .PHONY: distdir
196
197 dist: distdir
198 tar chozf $(DISTTAR) $(distdir)
199 rm -rf $(distdir)
200 .PHONY: dist
201
202 distcheck: dist
203 rm -rf _distcheck
204 mkdir _distcheck
205 +cd _distcheck && \
206 tar xvfz ../$(DISTTAR) && \
207 mkdir _build && cd _build && \
208 make -f../$(distdir)/Makefile srcdir=../$(distdir) && \
209 make -f../$(distdir)/Makefile srcdir=../$(distdir) \
210 install DESTDIR=../_install && \
211 make -f../$(distdir)/Makefile srcdir=../$(distdir) dist
212 rm -rf _distcheck
213
214 ###----- That's all, folks --------------------------------------------------