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
|
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.61)
AC_INIT(GLU3, 0.9-20100721, idr@freedesktop.org, GLU3)
AC_CONFIG_SRCDIR([Makefile.am])
AM_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE
AM_MAINTAINER_MODE
# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_RANLIB
# Checks for libraries.
# Checks for header files.
AC_CHECK_HEADERS([fcntl.h unistd.h sys/stat.h sys/types.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT8_T
# Checks for library functions.
AC_HEADER_STDC
AC_CHECK_FUNCS(fopen_s)
AC_CHECK_FUNCS(strtof)
AC_ARG_WITH([winsys],
[AS_HELP_STRING([--with-winsys],
[select windowing system to use between glx, egl, and wgl @<:@default=check@:>@])],
[],
[with_winsys=check])
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],
[use debug compiler flags and macros @<:@default=disabled@:>@])],
[enable_debug="$enableval"],
[enable_debug=no]
)
if test "x$enable_debug" = xyes; then
DEFINES="$DEFINES -DDEBUG"
if test "x$GCC" = xyes; then
CFLAGS="$CFLAGS -ggdb3 -fstack-protector -D_FORTIFY_SOURCE=2"
fi
if test "x$GXX" = xyes; then
CXXFLAGS="$CXXFLAGS -ggdb3 -fstack-protector -D_FORTIFY_SOURCE=2"
fi
fi
if test "x$GCC" = xyes ; then
WARN="-Wall -Wextra -Wunsafe-loop-optimizations -Wstack-protector"
else
WARN=""
fi
CFLAGS="$CFLAGS $WARN"
if test "x$GXX" = xyes ; then
WARN="-Wall -Wextra -Wunsafe-loop-optimizations -Wstack-protector"
else
WARN=""
fi
CXXFLAGS="$CXXFLAGS $WARN"
# Determine which window system layer to use. If none is selected or detected,
# see if the required functions are statically available (this maybe the case
# on OpenGL ES 2.0 or on OS X).
if test "x$with_winsys" = xcheck ; then
AC_CHECK_HEADER("GL/glx.h", [have_glx=yes], [], [])
AC_CHECK_HEADER("EGL/egl.h", [have_egl=yes], [], [])
AC_CHECK_HEADER("GL/wgl.h", [have_wgl=yes], [], [])
if test "x$have_glx" = xyes ; then
if test "x$have_egl" = xyes -o "x$have_wgl" = xyes ; then
AC_MSG_ERROR("cannot determine which window system to use")
fi
with_winsys=glx
fi
if test "x$have_egl" = xyes ; then
if test "x$have_wgl" = xyes ; then
AC_MSG_ERROR("cannot determine which window system to use")
fi
with_winsys=egl
fi
if test "x$have_wgl" = xyes ; then
with_winsys=wgl
fi
fi
if test "x$with_winsys" = xglx ; then
AC_DEFINE([HAVE_GLX], [1], [Use GLX as the window system layer.])
elif test "x$with_winsys" = xegl ; then
AC_DEFINE([HAVE_EGL], [1], [Use EGL as the window system layer.])
elif test "x$with_winsys" = xwgl ; then
AC_DEFINE([HAVE_WGL], [1], [Use WGL as the window system layer.])
elif test "x$with_winsys" = xcheck -o "x$with_winsys" = xno; then
# No window system. Check that the OpenGL library makes OpenGL 2.0
# symbols statically available.
AC_CHECK_FUNCS(glCreateShader,
[],
[AC_MSG_ERROR("cannot find glCreateShader. Update library path or select a window system via --with-winsys")]
)
else
AC_MSG_ERROR("invalid window system selection")
fi
AC_OUTPUT([Makefile
src/Makefile
test/Makefile
glu3.pc])
|
