aboutsummaryrefslogtreecommitdiff
path: root/mk/lib.mk
blob: 92f0983d57f1566dc65dabda5a235c94cd184da8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
default: all


# Get rid of default suffixes. FIXME: is this a good idea?
.SUFFIXES:


# Initialise some variables.
bin-scripts :=
noinst-scripts :=
man-pages :=
install-tests :=

ifdef HOST_OS
  HOST_KERNEL = $(firstword $(subst -, ,$(HOST_OS)))
  ifeq ($(HOST_KERNEL), cygwin)
    HOST_CYGWIN = 1
  endif
  ifeq ($(patsubst darwin%,,$(HOST_KERNEL)),)
    HOST_DARWIN = 1
  endif
  ifeq ($(patsubst freebsd%,,$(HOST_KERNEL)),)
    HOST_FREEBSD = 1
  endif
  ifeq ($(HOST_KERNEL), linux)
    HOST_LINUX = 1
  endif
  ifeq ($(patsubst solaris%,,$(HOST_KERNEL)),)
    HOST_SOLARIS = 1
  endif
endif

# Hack to define a literal space.
space :=
space +=


# Hack to define a literal newline.
define newline


endef


# Default installation paths.
prefix ?= /usr/local
libdir ?= $(prefix)/lib
bindir ?= $(prefix)/bin
libexecdir ?= $(prefix)/libexec
datadir ?= $(prefix)/share
localstatedir ?= $(prefix)/var
sysconfdir ?= $(prefix)/etc
mandir ?= $(prefix)/share/man


# Initialise support for build directories.
builddir ?=

ifdef builddir
  buildprefix = $(builddir)/
else
  buildprefix =
endif


# Pass -fPIC if we're building dynamic libraries.
BUILD_SHARED_LIBS ?= 1

ifeq ($(BUILD_SHARED_LIBS), 1)
  ifdef HOST_CYGWIN
    GLOBAL_CFLAGS += -U__STRICT_ANSI__ -D_GNU_SOURCE
    GLOBAL_CXXFLAGS += -U__STRICT_ANSI__ -D_GNU_SOURCE
  else
    GLOBAL_CFLAGS += -fPIC
    GLOBAL_CXXFLAGS += -fPIC
  endif
  ifndef HOST_DARWIN
   ifndef HOST_SOLARIS
    ifndef HOST_FREEBSD
     GLOBAL_LDFLAGS += -Wl,--no-copy-dt-needed-entries
    endif
   endif
  endif
  SET_RPATH_TO_LIBS ?= 1
endif

# Pass -g if we want debug info.
BUILD_DEBUG ?= 1

ifeq ($(BUILD_DEBUG), 1)
  GLOBAL_CFLAGS += -g
  GLOBAL_CXXFLAGS += -g
endif


include mk/functions.mk
include mk/tracing.mk
include mk/clean.mk
include mk/install.mk
include mk/libraries.mk
include mk/programs.mk
include mk/patterns.mk
include mk/templates.mk
include mk/tests.mk


# Include all sub-Makefiles.
define include-sub-makefile
  d := $$(patsubst %/,%,$$(dir $(1)))
  include $(1)
endef

$(foreach mf, $(makefiles), $(eval $(call include-sub-makefile, $(mf))))


# Instantiate stuff.
$(foreach lib, $(libraries), $(eval $(call build-library,$(lib))))
$(foreach prog, $(programs), $(eval $(call build-program,$(prog))))
$(foreach script, $(bin-scripts), $(eval $(call install-program-in,$(script),$(bindir))))
$(foreach script, $(bin-scripts), $(eval programs-list += $(script)))
$(foreach script, $(noinst-scripts), $(eval programs-list += $(script)))
$(foreach template, $(template-files), $(eval $(call instantiate-template,$(template))))
$(foreach test, $(install-tests), $(eval $(call run-install-test,$(test))))
$(foreach file, $(man-pages), $(eval $(call install-data-in, $(file), $(mandir)/man$(patsubst .%,%,$(suffix $(file))))))


.PHONY: default all man help

all: $(programs-list) $(libs-list) $(man-pages)

man: $(man-pages)


help:
	@echo "The following targets are available:"
	@echo ""
	@echo "  default: Build default targets"
ifdef man-pages
	@echo "  man: Generate manual pages"
endif
	@$(print-top-help)
ifdef programs-list
	@echo ""
	@echo "The following programs can be built:"
	@echo ""
	@for i in $(programs-list); do echo "  $$i"; done
endif
ifdef libs-list
	@echo ""
	@echo "The following libraries can be built:"
	@echo ""
	@for i in $(libs-list); do echo "  $$i"; done
endif
	@echo ""
	@echo "The following variables control the build:"
	@echo ""
	@echo "  BUILD_SHARED_LIBS ($(BUILD_SHARED_LIBS)): Whether to build shared libraries"
	@echo "  BUILD_DEBUG ($(BUILD_DEBUG)): Whether to include debug symbols"
	@echo "  CC ($(CC)): C compiler to be used"
	@echo "  CFLAGS: Flags for the C compiler"
	@echo "  CXX ($(CXX)): C++ compiler to be used"
	@echo "  CXXFLAGS: Flags for the C++ compiler"
	@echo "  CPPFLAGS: C preprocessor flags, used for both CC and CXX"
	@$(print-var-help)