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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
dnl configure.ac
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ([2.63])
AC_INIT([libglvnd], [0.1.0], [kbrenneman@nvidia.com])
AC_CONFIG_SRCDIR([config.h.in])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_AUX_DIR([bin])
AC_CONFIG_MACRO_DIR([m4])
AC_CANONICAL_SYSTEM
AC_USE_SYSTEM_EXTENSIONS
AM_INIT_AUTOMAKE([1.11 foreign silent-rules])
AM_SILENT_RULES([yes])
dnl Add an --enable-debug option
AX_CHECK_ENABLE_DEBUG(no, DEBUG)
dnl Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CC_C99
AM_PROG_AS
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_PROG_MKDIR_P
AC_CHECK_PROGS([PYTHON2], [python2.7 python2 python])
AC_CHECK_PROGS([PERL], [perl])
if test "x$ac_cv_prog_cc_c99" = xno; then
AC_MSG_ERROR([Building libglvnd requires a C99-enabled compiler])
fi
dnl
dnl Arch/platform-specific settings. Copied from mesa
dnl
AC_ARG_ENABLE([asm],
[AS_HELP_STRING([--disable-asm],
[disable assembly usage @<:@default=enabled on supported platforms@:>@])],
[enable_asm="$enableval"],
[enable_asm=yes]
)
asm_arch=""
AC_MSG_CHECKING([whether to enable assembly])
test "x$enable_asm" = xno && AC_MSG_RESULT([no])
# check for supported arches
if test "x$enable_asm" = xyes; then
case "$host_cpu" in
i?86)
case "$host_os" in
linux* | *freebsd* | dragonfly* | *netbsd*)
asm_arch=x86
;;
gnu*)
asm_arch=x86
;;
esac
;;
x86_64)
case "$host_os" in
linux* | *freebsd* | dragonfly* | *netbsd*)
asm_arch=x86_64
;;
esac
;;
armv7l)
asm_arch=armv7l
;;
esac
case "$asm_arch" in
x86)
DEFINES="$DEFINES -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM"
AC_MSG_RESULT([yes, x86])
;;
x86_64)
DEFINES="$DEFINES -DUSE_X86_64_ASM"
AC_MSG_RESULT([yes, x86_64])
;;
armv7l)
DEFINES="$DEFINES -DUSE_ARMV7_ASM"
AC_MSG_RESULT([yes, armv7l])
;;
*)
AC_MSG_RESULT([no, platform not supported])
;;
esac
fi
dnl
dnl mapi top-relative paths: defined here so mapi can be used elsewhere
dnl
AC_SUBST([MAPI_PREFIX], [src/GLdispatch/vnd-glapi/mapi])
AC_SUBST([MAPI_MESA_PREFIX], [src/GLdispatch/mesa])
dnl Checks for libraries.
AX_PTHREAD()
PKG_CHECK_MODULES([X11], [x11])
PKG_CHECK_MODULES([XEXT], [xext])
PKG_CHECK_MODULES([XORG], [xorg-server >= 1.11.0])
PKG_CHECK_MODULES([GLPROTO], [glproto])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_TYPEOF
dnl Checks for library functions.
AC_FUNC_STRNLEN
dnl TLS detection
AC_ARG_ENABLE([tls],
[AS_HELP_STRING([--disable-tls],
[disable TLS usage @<:@default=enabled on supported platforms@:>@])],
[enable_tls="$enableval"],
[enable_tls=yes]
)
AC_MSG_CHECKING([for initial-exec TLS])
if test "x$enable_tls" = "xyes"; then
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
__thread int foo __attribute__((tls_model("initial-exec")));
])],
[HAVE_INIT_TLS=yes],[HAVE_INIT_TLS=no])
else
HAVE_INIT_TLS=no
fi
AC_MSG_RESULT($HAVE_INIT_TLS)
# Figure out what implementation to use for the entrypoint stubs.
# This will set an automake condition, which is then used in
# src/GLdispatch/vnd-glapi/entry_files.mk.
AC_MSG_CHECKING([for entrypoint stub type])
case "x$asm_arch" in
xx86)
# The x86 TLS stubs don't work, so use the TSD stubs instead.
gldispatch_entry_type=x86_tsd
gldispatch_use_tls=no
;;
xx86_64)
# For x86-64, both the TLS and TSD stubs work.
if test "x$HAVE_INIT_TLS" = "xyes" ; then
gldispatch_entry_type=x86_64_tls
gldispatch_use_tls=yes
else
gldispatch_entry_type=x86_64_tsd
gldispatch_use_tls=no
fi
;;
xarmv7l)
# For ARMv7, only the TSD stubs have been implemented yet.
gldispatch_entry_type=armv7_tsd
gldispatch_use_tls=no
;;
*)
# The C stubs will work with either TLS or TSD.
gldispatch_entry_type=pure_c
gldispatch_use_tls=$HAVE_INIT_TLS
;;
esac
AC_MSG_RESULT([$gldispatch_entry_type, TLS=$gldispatch_use_tls])
AS_IF([test "x$gldispatch_use_tls" = "xyes"],
[AC_DEFINE([GLDISPATCH_USE_TLS], 1,
[Define to 1 if libGLdispatch should use a TLS variable for the dispatch table.])])
AM_CONDITIONAL([GLDISPATCH_USE_TLS], [test "x$gldispatch_use_tls" = "xyes"])
AM_CONDITIONAL([GLDISPATCH_TYPE_X86_TLS], [test "x$gldispatch_entry_type" = "xx86_tls"])
AM_CONDITIONAL([GLDISPATCH_TYPE_X86_TSD], [test "x$gldispatch_entry_type" = "xx86_tsd"])
AM_CONDITIONAL([GLDISPATCH_TYPE_X86_64_TLS], [test "x$gldispatch_entry_type" = "xx86_64_tls"])
AM_CONDITIONAL([GLDISPATCH_TYPE_X86_64_TSD], [test "x$gldispatch_entry_type" = "xx86_64_tsd"])
AM_CONDITIONAL([GLDISPATCH_TYPE_ARMV7_TSD], [test "x$gldispatch_entry_type" = "xarmv7_tsd"])
AM_CONDITIONAL([GLDISPATCH_TYPE_PURE_C], [test "x$gldispatch_entry_type" = "xpure_c"])
AC_MSG_CHECKING([for constructor attributes])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
void __attribute__ ((constructor)) foo(void)
{
}
void __attribute__ ((destructor)) bar(void)
{
}
])],
[USE_ATTRIBUTE_CONSTRUCTOR=yes],[USE_ATTRIBUTE_CONSTRUCTOR=no])
AC_MSG_RESULT($USE_ATTRIBUTE_CONSTRUCTOR)
AS_IF([test "x$USE_ATTRIBUTE_CONSTRUCTOR" = "xyes"],
[AC_DEFINE([USE_ATTRIBUTE_CONSTRUCTOR], 1,
[Define to 1 if the compiler supports constructor attributes.])])
AC_MSG_CHECKING([for pthreads rwlocks])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <pthread.h>
void foo(void)
{
pthread_rwlock_t lock;
pthread_rwlock_init(&lock, NULL);
}
])],
[HAVE_PTHREAD_RWLOCK_T=yes],[HAVE_PTHREAD_RWLOCK_T=no])
AC_MSG_RESULT($HAVE_PTHREAD_RWLOCK_T)
AS_IF([test "x$HAVE_PTHREAD_RWLOCK_T" = "xyes"],
[AC_DEFINE([HAVE_PTHREAD_RWLOCK_T], 1,
[Define to 1 if the compiler supports pthreads rwlocks.])])
AC_MSG_CHECKING([for sync intrinsics])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
int foo(int volatile *val, int oldVal, int newVal)
{
return __sync_add_and_fetch(val, 1);
return __sync_lock_test_and_set(val, newVal);
return __sync_val_compare_and_swap(val, oldVal, newVal);
}
])],
[HAVE_SYNC_INTRINSICS=yes],[HAVE_SYNC_INTRINSICS=no])
AC_MSG_RESULT($HAVE_SYNC_INTRINSICS)
AS_IF([test "x$HAVE_SYNC_INTRINSICS" = "xyes"],
[AC_DEFINE([HAVE_SYNC_INTRINSICS], 1,
[Define to 1 if the compiler supports __sync intrinsic functions.])])
# See if the linker supports the --no-undefined flag.
AX_CHECK_LINK_FLAG([-Xlinker --no-undefined],
[AC_SUBST([LINKER_FLAG_NO_UNDEFINED], ["-Xlinker --no-undefined"])],
[AC_SUBST([LINKER_FLAG_NO_UNDEFINED], [""])])
dnl default CFLAGS
CFLAGS="$CFLAGS -Wall -Werror -include config.h -fvisibility=hidden $DEFINES"
AC_CONFIG_FILES([Makefile
libglvnd.pc
include/Makefile
src/Makefile
src/GL/Makefile
src/OpenGL/Makefile
src/GLESv1/Makefile
src/GLESv2/Makefile
src/GLX/Makefile
src/GLdispatch/Makefile
src/GLdispatch/vnd-glapi/Makefile
src/util/Makefile
src/util/trace/Makefile
tests/Makefile
tests/GLX_dummy/Makefile])
AC_OUTPUT
|
