1 AC_INIT([kamid], [0.1], [kamid@omarpolo.com], [kamid], [gemini://kamid.omarpolo.com])
2 AC_CONFIG_LIBOBJ_DIR(compat)
3 AC_CANONICAL_HOST
4 AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
5 AC_PROG_CC
6 AC_USE_SYSTEM_EXTENSIONS
7 AC_PROG_YACC
8 
9 PKG_PROG_PKG_CONFIG
10 
11 # Some functions can be in libbsd.  Thanks to lldpb for the inspiration :)
12 AC_ARG_WITH([libbsd],
13   AS_HELP_STRING([--with-libbsd], [Use libbsd @<:@default=auto@:>@]),
14   [],
15   [with_libbsd=auto])
16 if test x"$with_libbsd" != x"no"; then
17   PKG_CHECK_MODULES([libbsd], [libbsd-overlay libbsd-ctor], [
18     _save_AM_CFLAGS="$AM_CFLAGS"
19     _save_LIBS="$LIBS"
20     AM_CFLAGS="$AM_CFLAGS $libbsd_CFLAGS"
21     LIBS="$LIBS $libbsd_LIBS"
22     AC_MSG_CHECKING([if libbsd can be linked correctly])
23     AC_LINK_IFELSE([AC_LANG_PROGRAM([[
24   @%:@include <sys/time.h>
25   @%:@include <sys/types.h>
26   ]], [[]])],[
27         AC_MSG_RESULT(yes)
28         AM_CFLAGS="$AM_CFLAGS $libbsd_CFLAGS"
29         AM_LDFLAGS="$AM_LDFLAGS $libbsd_LIBS"
30         with_libbsd=yes
31       ],[
32         AC_MSG_RESULT(no)
33         AM_CFLAGS="$_save_AM_CFLAGS"
34         LIBS="$_save_LIBS"
35         if test x"$with_libbsd" = x"yes"; then
36            AC_MSG_FAILURE([*** no libbsd support found])
37         fi
38         with_libbsd=no
39       ])
40   ], [
41     if test x"$with_libbsd" = x"yes"; then
42        AC_MSG_FAILURE([*** no libbsd support found])
43     fi
44     with_libbsd=no
45   ])
46 fi
47 
48 AC_SEARCH_LIBS([arc4random], [],
49 	[AC_DEFINE([HAVE_ARC4RANDOM], 1, [arc4random])],
50 	[AC_DEFINE([HAVE_ARC4RANDOM], 0, [arc4random])])
51 
52 AC_REPLACE_FUNCS([
53 	asprintf	\
54 	err		\
55 	freezero	\
56 	getdtablecount	\
57 	getdtablesize	\
58 	getprogname	\
59 	memmem		\
60 	recallocarray	\
61 	setproctitle	\
62 	setprogname	\
63 	strlcat		\
64 	strlcpy		\
65 	strsep		\
66 	strtonum	\
67 ])
68 
69 AC_MSG_CHECKING([for sys/queue.h with TAILQ_FOREACH_SAFE and STAILQ_ENTRY])
70 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
71 #include <sys/queue.h>
72 #include <stddef.h>
73 ], [
74 	TAILQ_HEAD(tailhead, entry) head;
75 	struct entry {
76 		TAILQ_ENTRY(entry) entries;
77 	} *np, *nt;
78 	TAILQ_INIT(&head);
79 	TAILQ_FOREACH_SAFE(np, &head, entries, nt) {
80 		/* nop */ ;
81 	}
82 
83 	STAILQ_HEAD(listhead, qentry) qhead = STAILQ_HEAD_INITIALIZER(qhead);
84 	struct qentry {
85 		STAILQ_ENTRY(qentry) entries;
86 	} foo;
87 
88 	return 0;
89 ])], [
90 	AC_MSG_RESULT(yes)
91 	AC_DEFINE([HAVE_QUEUE_H], 1, [QUEUE_H])
92 ], AC_MSG_RESULT(no))
93 
94 AC_CHECK_HEADERS([sys/tree.h])
95 
96 AC_CHECK_DECL(PR_SET_NAME, AC_DEFINE([HAVE_PR_SET_NAME], 1, [pr_set_name]), [],
97 	[[#include <sys/prctl.h>]])
98 
99 AC_CHECK_LIB([crypto], [RAND_add], [], [
100 	AC_MSG_ERROR([requires openssl])
101 ])
102 
103 AC_CHECK_LIB(tls, tls_init, [], [
104 	AC_MSG_ERROR([requires libtls])
105 ])
106 
107 AS_CASE([$host_os],
108 	[*openbsd*], [AC_CHECK_LIB([event], [event_init], [],
109 			[AC_MSG_ERROR([requires libevent])])],
110 	[PKG_CHECK_MODULES([libevent2], [libevent_core >= 2],
111 		[
112 			AC_DEFINE([HAVE_EVENT2], 1, [1 if using event2])
113 			AM_CFLAGS="$libevent2_CFLAGS $AM_CFLAGS"
114 			LIBS="$libevent2_LIBS $LIBS"
115 		], [AC_MSG_ERROR([requires libevent])])])
116 
117 AC_CHECK_LIB(util, imsg_init, [], [
118 	AC_LIBOBJ(imsg)
119 	AC_LIBOBJ(imsg-buffer)
120 	AC_LIBOBJ(ohash)
121 ])
122 
123 # check compiler flags
124 AC_DEFUN([CC_ADD_CHECK_FLAGS], [
125 	AC_MSG_CHECKING([if $CC supports $1 flag])
126 	old_AM_CFLAGS="$AM_CFLAGS"
127 	AM_CFLAGS="$AM_CFLAGS $1"
128 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], [
129 		AC_MSG_RESULT(yes)
130 	], [
131 		AC_MSG_RESULT(no)
132 		AM_CFLAGS="$old_AM_CFLAGS"
133 	])
134 ])
135 CC_ADD_CHECK_FLAGS([-Wall])
136 CC_ADD_CHECK_FLAGS([-Wextra])
137 CC_ADD_CHECK_FLAGS([-Wmissing-prototypes])
138 CC_ADD_CHECK_FLAGS([-Wstrict-prototypes])
139 CC_ADD_CHECK_FLAGS([-Wwrite-strings])
140 CC_ADD_CHECK_FLAGS([-Wno-unused-parameter])
141 
142 AC_CONFIG_HEADERS([config.h])
143 AC_CONFIG_FILES([
144 	Makefile
145 ])
146 
147 AC_OUTPUT