configure.ac revision fbc03982 
1dnl
2dnl Copyright © 2013 Keith Packard
3dnl
4dnl Permission to use, copy, modify, distribute, and sell this software and its
5dnl documentation for any purpose is hereby granted without fee, provided that
6dnl the above copyright notice appear in all copies and that both that copyright
7dnl notice and this permission notice appear in supporting documentation, and
8dnl that the name of the copyright holders not be used in advertising or
9dnl publicity pertaining to distribution of the software without specific,
10dnl written prior permission.  The copyright holders make no representations
11dnl about the suitability of this software for any purpose.  It is provided "as
12dnl is" without express or implied warranty.
13dnl
14dnl THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15dnl INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16dnl EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17dnl CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18dnl DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19dnl TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20dnl OF THIS SOFTWARE.
21dnl
22dnl
23dnl Process this file with autoconf to create configure.
24
25AC_PREREQ([2.60])
26AC_INIT([libxshmfence], [1.3],
27        [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], [libxshmfence])
28AC_CONFIG_SRCDIR([Makefile.am])
29AC_CONFIG_HEADERS([config.h])
30
31AC_USE_SYSTEM_EXTENSIONS
32
33# Initialize Automake
34AM_INIT_AUTOMAKE([foreign dist-bzip2])
35
36# Initialize libtool
37AC_PROG_LIBTOOL
38
39# Require xorg-macros: XORG_DEFAULT_OPTIONS, XORG_WITH_LINT
40m4_ifndef([XORG_MACROS_VERSION],
41          [m4_fatal([must install xorg-macros 1.3 or later before running autoconf/autogen])])
42XORG_MACROS_VERSION(1.3)
43XORG_DEFAULT_OPTIONS
44
45dnl Allow checking code with lint, sparse, etc.
46XORG_WITH_LINT
47LINT_FLAGS="${LINT_FLAGS} ${FONTENC_CFLAGS}"
48
49		  
50dnl
51dnl Locate a suitable tmp file system for creating shared memeory files
52dnl
53
54AC_ARG_ENABLE(futex,	AS_HELP_STRING([--enable-futex], [Enable futexes (default: auto)]),
55		[FUTEX=$enableval], [FUTEX=auto])
56
57if test "x$FUTEX" = "xauto"; then
58	AC_CHECK_HEADER([linux/futex.h], [FUTEX=yes])
59fi
60
61if test "x$FUTEX" = "xauto"; then
62	AC_CHECK_HEADER([sys/umtx.h], [FUTEX=yes], [FUTEX=no],
63	    [#include <errno.h>
64	     #include <sys/types.h>])
65	if test "x$FUTEX" = "xyes"; then
66		AC_DEFINE(HAVE_UMTX, 1, [Use umtx])
67	fi
68fi
69
70if test "x$FUTEX" = "xyes"; then
71	PTHREAD=no
72	AC_DEFINE(HAVE_FUTEX,1,[Use futexes])
73else
74	PTHREAD=yes
75	AC_DEFINE(HAVE_PTHREAD,1,[Use pthread primitives])
76fi
77
78PTHREAD_LIBS=
79if test "x$PTHREAD" = "xyes"; then
80	AC_CHECK_LIB(pthread,pthread_create,[PTHREAD_LIBS=-lpthread],[PTHREAD_LIBS=])
81fi
82
83AC_SUBST([PTHREAD_LIBS])
84
85AM_CONDITIONAL([FUTEX], [test x"$FUTEX" = xyes])
86AM_CONDITIONAL([PTHREAD], [test x"$PTHREAD" = xyes])
87
88PKG_CHECK_MODULES(XPROTO, xproto)
89
90AC_SUBST([XPROTO_CFLAGS])
91
92CFLAGS="$CFLAGS $XPROTO_CFLAGS"
93
94AC_CHECK_FUNCS(memfd_create)
95
96AC_CHECK_DECLS([__NR_memfd_create], [], [], [[#include <asm/unistd.h>]])
97
98AC_CHECK_HEADERS([sys/memfd.h], [AC_DEFINE([HAVE_MEMFD_H], 1, [Has sys/memfd.h header])])
99
100AC_ARG_ENABLE(visibility,     AC_HELP_STRING([--enable-visibility], [Enable symbol visibility (default: auto)]),
101				[SYMBOL_VISIBILITY=$enableval],
102				[SYMBOL_VISIBILITY=auto])
103
104dnl ==================================================================
105dnl symbol visibility
106symbol_visibility=
107have_visibility=disabled
108if test x$SYMBOL_VISIBILITY != xno; then
109    AC_MSG_CHECKING(for symbol visibility support)
110    if test x$GCC = xyes; then
111	VISIBILITY_CFLAGS="-fvisibility=hidden"
112    else
113	if test x$SUNCC = xyes; then
114	    VISIBILITY_CFLAGS="-xldscope=hidden"
115	else
116	    have_visibility=no
117	fi
118    fi
119    if test x$have_visibility != xno; then
120	AC_TRY_COMPILE(
121	    [#include <X11/Xfuncproto.h>
122	     extern _X_HIDDEN int hidden_int;
123	     extern _X_EXPORT int public_int;
124	     extern _X_HIDDEN int hidden_int_func(void);
125	     extern _X_EXPORT int public_int_func(void);],
126	    [],
127	    have_visibility=yes,
128	    have_visibility=no)
129    fi
130    AC_MSG_RESULT([$have_visibility])
131    if test x$have_visibility != xno; then
132	symbol_visibility=$VISIBILITY_CFLAGS
133	CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
134    fi
135fi
136
137AC_ARG_WITH(shared-memory-dir, AS_HELP_STRING([--with-shared-memory-dir=PATH], [Path to directory in a world-writable temporary directory for anonymous shared memory (default: auto)]),
138[],
139[with_shared_memory_dir=yes])
140
141shmdirs="/run/shm /dev/shm /var/tmp /tmp"
142
143case x"$with_shared_memory_dir" in
144xyes)
145	for dir in $shmdirs; do
146		case x"$with_shared_memory_dir" in
147		xyes)
148			echo Checking temp dir "$dir"
149			if test -d "$dir"; then
150				with_shared_memory_dir="$dir"
151			fi
152			;;
153		esac
154	done
155	;;
156x/*)
157	;;
158xno)
159	;;
160*)
161	AC_MSG_ERROR([Invalid directory specified for --with-shared-memory-dir: $with_shared_memory_dir])
162	;;
163esac
164
165case x"$with_shared_memory_dir" in
166xyes)
167	AC_MSG_ERROR([No directory found for shared memory temp files.])
168	;;
169xno)
170	;;
171*)
172	AC_DEFINE_UNQUOTED(SHMDIR, ["$with_shared_memory_dir"], [Directory for shared memory temp files])
173	;;
174esac
175
176AC_CONFIG_FILES([Makefile
177                 src/Makefile
178		 test/Makefile
179                 xshmfence.pc])
180AC_OUTPUT
181