summaryrefslogtreecommitdiff
path: root/m4/mpd_auto.m4
blob: 60ede3124bf4a6e0c93af00bb9f663613f77b908 (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
AC_DEFUN([MPD_AUTO_ENABLED], [
	if test x$[]enable_$1 = xauto; then
		AC_MSG_NOTICE([auto-detected $2])
		enable_$1=yes
	fi
])

AC_DEFUN([MPD_AUTO_DISABLED], [
	if test x$[]enable_$1 = xauto; then
		AC_MSG_WARN([$3 -- disabling $2])
		enable_$1=no
	elif test x$[]enable_$1 = xyes; then
		AC_MSG_ERROR([$2: $3])
	fi
])

dnl Check whether a prerequisite for a feature was found.  This is
dnl very similar to MPD_AUTO_RESULT, but does not finalize the
dnl detection; it assumes that more checks will follow.
AC_DEFUN([MPD_AUTO_PRE], [
	if test x$[]enable_$1 != xno && test x$[]found_$1 = xno; then
                MPD_AUTO_DISABLED([$1], [$2], [$3])
	fi
])

AC_DEFUN([MPD_AUTO_RESULT], [
	if test x$[]enable_$1 = xno; then
		found_$1=no
	fi

	if test x$[]found_$1 = xyes; then
                MPD_AUTO_ENABLED([$1], [$2])
	else
                MPD_AUTO_DISABLED([$1], [$2], [$3])
	fi
])

dnl Parameters: varname1, description, errmsg, check
AC_DEFUN([MPD_AUTO], [
	if test x$[]enable_$1 != xno; then
		$4
	fi
	MPD_AUTO_RESULT([$1], [$2], [$3])
])

AC_DEFUN([MPD_AUTO_PKG], [
	MPD_AUTO([$1], [$4], [$5],
		[PKG_CHECK_MODULES([$2], [$3],
			[found_$1=yes],
			[found_$1=no])])
])

dnl Check with pkg-config first, fall back to AC_CHECK_LIB.
dnl
dnl Parameters: varname1, varname2, pkgname, libname, symname, libs, cflags, description, errmsg
AC_DEFUN([MPD_AUTO_PKG_LIB], [
	MPD_AUTO([$1], [$8], [$9],
		[PKG_CHECK_MODULES([$2], [$3],
			[found_$1=yes],
			AC_CHECK_LIB($4, $5,
				[found_$1=yes $2_LIBS='$6' $2_CFLAGS='$7'],
				[found_$1=no],
				[$6]))])
])

dnl Wrapper for AC_CHECK_LIB.
dnl
dnl Parameters: varname1, varname2, libname, symname, libs, cflags, description, errmsg
AC_DEFUN([MPD_AUTO_LIB], [
	AC_SUBST([$2_LIBS], [])
	AC_SUBST([$2_CFLAGS], [])

	MPD_AUTO([$1], [$7], [$8],
		[AC_CHECK_LIB($3, $4,
			[found_$1=yes $2_LIBS='$5' $2_CFLAGS='$6'],
			[found_$1=no],
			[$5])])
])

AC_DEFUN([MPD_FORMAT_DEFAULT],
	[ifelse([$1], [], [auto],
		index([$1], [$]), [-1], [$1],
		[auto])])

dnl Wrapper for AC_ARG_ENABLE, AC_DEFINE and AM_CONDITIONAL
dnl
dnl Parameters: varname1, varname2, description, default, check
AC_DEFUN([MPD_ARG_ENABLE], [
	AC_ARG_ENABLE(translit([$1], [_], [-]),
		AS_HELP_STRING([--enable-]translit([$1], [_], [-]),
			[enable $3 (default: ]MPD_FORMAT_DEFAULT([$4])[)]),,
		[enable_$1=]ifelse([$4], [], [auto], [$4]))

	$5

	if test x$[]enable_$1 = xyes; then
		AC_DEFINE(ENABLE_$2, 1,
			[Define to enable $4])
	fi
	AM_CONDITIONAL(ENABLE_$2, test x$[]enable_$1 = xyes)
])

dnl Wrapper for AC_ARG_ENABLE and MPD_AUTO_PKG
dnl
dnl Parameters: varname1, varname2, pkg, description, errmsg, default, pre
AC_DEFUN([MPD_ENABLE_AUTO_PKG], [
	MPD_ARG_ENABLE([$1], [$2], [$4], [$6], [
		$7
		MPD_AUTO_PKG($1, $2, $3, $4, $5)
	])
])

dnl Wrapper for AC_ARG_ENABLE and MPD_AUTO_PKG_LIB
dnl
dnl Parameters: varname1, varname2, pkg, libname, symname, libs, cflags, description, errmsg, default, pre
AC_DEFUN([MPD_ENABLE_AUTO_PKG_LIB], [
	MPD_ARG_ENABLE([$1], [$2], [$8], [$10], [
		$11
		MPD_AUTO_PKG_LIB($1, $2, $3, $4, $5, $6, $7, $8, $9)
	])
])

dnl Wrapper for MPD_ENABLE_AUTO_PKG and MPD_DEPENDS
dnl
dnl Parameters: varname1, varname2, pkg, description, errmsg, default, dep_variable, dep_errmsg
AC_DEFUN([MPD_ENABLE_AUTO_PKG_DEPENDS], [
	MPD_ENABLE_AUTO_PKG([$1], [$2], [$3], [$4], [$5], [$6],
		[MPD_DEPENDS([enable_$1], [$7], [$8])])
])