fd6a642ea356cc0423d1e5c51bdbff27f88d7aa0
1 # Copyright 2005 Adam Jackson.
2 #
3 # Permission is hereby granted, free of charge, to any person obtaining a
4 # copy of this software and associated documentation files (the "Software"),
5 # to deal in the Software without restriction, including without limitation
6 # on the rights to use, copy, modify, merge, publish, distribute, sub
7 # license, and/or sell copies of the Software, and to permit persons to whom
8 # the Software is furnished to do so, subject to the following conditions:
9 #
10 # The above copyright notice and this permission notice (including the next
11 # paragraph) shall be included in all copies or substantial portions of the
12 # Software.
13 #
14 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 # FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 # ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
18 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 AC_PREREQ(2.60)
22 AC_INIT([libdrm], 2.4.15, [dri-devel@lists.sourceforge.net], libdrm)
23 AC_USE_SYSTEM_EXTENSIONS
24 AC_CONFIG_SRCDIR([Makefile.am])
25 AM_INIT_AUTOMAKE([dist-bzip2])
27 AM_CONFIG_HEADER([config.h])
29 AC_DISABLE_STATIC
30 AC_PROG_LIBTOOL
31 AC_PROG_CC
33 AC_HEADER_STDC
34 AC_SYS_LARGEFILE
36 PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
37 AC_SUBST(PTHREADSTUBS_CFLAGS)
38 AC_SUBST(PTHREADSTUBS_LIBS)
40 pkgconfigdir=${libdir}/pkgconfig
41 AC_SUBST(pkgconfigdir)
42 AC_ARG_ENABLE(udev, AS_HELP_STRING([--enable-udev],
43 [Enable support for using udev instead of mknod (default: disabled)]),
44 [UDEV=$enableval], [UDEV=no])
46 AC_ARG_ENABLE(intel,
47 AS_HELP_STRING([--disable-intel],
48 [Enable support for intel's KMS API (default: auto)]),
49 [INTEL=$enableval], [INTEL=auto])
51 AC_ARG_ENABLE(nouveau-experimental-api,
52 AS_HELP_STRING([--enable-nouveau-experimental-api],
53 [Enable support for nouveau's experimental API (default: disabled)]),
54 [NOUVEAU=$enableval], [NOUVEAU=no])
56 AC_ARG_ENABLE(radeon-experimental-api,
57 AS_HELP_STRING([--enable-radeon-experimental-api],
58 [Enable support for radeon's KMS API (default: disabled)]),
59 [RADEON=$enableval], [RADEON=no])
61 dnl ===========================================================================
62 dnl check compiler flags
63 AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
64 AC_MSG_CHECKING([whether $CC supports $1])
66 libdrm_save_CFLAGS="$CFLAGS"
67 CFLAGS="$CFLAGS $1"
69 AC_COMPILE_IFELSE([ ], [libdrm_cc_flag=yes], [libdrm_cc_flag=no])
70 CFLAGS="$libdrm_save_CFLAGS"
72 if test "x$libdrm_cc_flag" = "xyes"; then
73 ifelse([$2], , :, [$2])
74 else
75 ifelse([$3], , :, [$3])
76 fi
77 AC_MSG_RESULT([$libdrm_cc_flag])
78 ])
80 dnl We use clock_gettime to check for timeouts in drmWaitVBlank
82 AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
83 [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
84 [AC_MSG_ERROR([Couldn't find clock_gettime])])])
85 AC_SUBST([CLOCK_LIB])
87 dnl Use lots of warning flags with with gcc and compatible compilers
89 dnl Note: if you change the following variable, the cache is automatically
90 dnl skipped and all flags rechecked. So there's no need to do anything
91 dnl else. If for any reason you need to force a recheck, just change
92 dnl MAYBE_WARN in an ignorable way (like adding whitespace)
94 MAYBE_WARN="-Wall -Wextra \
95 -Wsign-compare -Werror-implicit-function-declaration \
96 -Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
97 -Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
98 -Wpacked -Wswitch-enum -Wmissing-format-attribute \
99 -Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \
100 -Wdeclaration-after-statement -Wold-style-definition \
101 -Wno-missing-field-initializers -Wno-unused-parameter \
102 -Wno-attributes -Wno-long-long -Winline"
104 # invalidate cached value if MAYBE_WARN has changed
105 if test "x$libdrm_cv_warn_maybe" != "x$MAYBE_WARN"; then
106 unset libdrm_cv_warn_cflags
107 fi
108 AC_CACHE_CHECK([for supported warning flags], libdrm_cv_warn_cflags, [
109 echo
110 WARN_CFLAGS=""
112 # Some warning options are not supported by all versions of
113 # gcc, so test all desired options against the current
114 # compiler.
115 #
116 # Note that there are some order dependencies
117 # here. Specifically, an option that disables a warning will
118 # have no net effect if a later option then enables that
119 # warnings, (perhaps implicitly). So we put some grouped
120 # options (-Wall and -Wextra) up front and the -Wno options
121 # last.
123 for W in $MAYBE_WARN; do
124 LIBDRM_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
125 done
127 libdrm_cv_warn_cflags=$WARN_CFLAGS
128 libdrm_cv_warn_maybe=$MAYBE_WARN
130 AC_MSG_CHECKING([which warning flags were supported])])
131 WARN_CFLAGS="$libdrm_cv_warn_cflags"
133 if test "x$UDEV" = xyes; then
134 AC_DEFINE(UDEV, 1, [Have UDEV support])
135 fi
137 AM_CONDITIONAL(HAVE_NOUVEAU, [test "x$NOUVEAU" = xyes])
139 AM_CONDITIONAL(HAVE_RADEON, [test "x$RADEON" = xyes])
141 PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
142 if test "x$HAVE_CAIRO" = xyes; then
143 AC_DEFINE(HAVE_CAIRO, 1, [Have cairo support])
144 fi
145 AM_CONDITIONAL(HAVE_CAIRO, [test "x$HAVE_CAIRO" = xyes])
147 # For enumerating devices in test case
148 PKG_CHECK_MODULES(LIBUDEV, libudev, [HAVE_LIBUDEV=yes], [HAVE_LIBUDEV=no])
149 if test "x$HAVE_LIBUDEV" = xyes; then
150 AC_DEFINE(HAVE_LIBUDEV, 1, [Have libudev support])
151 fi
152 AM_CONDITIONAL(HAVE_LIBUDEV, [test "x$HAVE_LIBUDEV" = xyes])
154 if test "x$INTEL" != "xno"; then
155 # Check for atomic intrinsics
156 AC_CACHE_CHECK([for native atomic primitives], drm_cv_atomic_primitives,
157 [
158 drm_cv_atomic_primitives="none"
160 AC_TRY_LINK([
161 int atomic_add(int i) { return __sync_fetch_and_add (&i, 1); }
162 int atomic_cmpxchg(int i, int j, int k) { return __sync_val_compare_and_swap (&i, j, k); }
163 ], [],
164 drm_cv_atomic_primitives="Intel"
165 )
167 if test "x$drm_cv_atomic_primitives" = "xnone"; then
168 AC_CHECK_HEADER([atomic_ops.h], drm_cv_atomic_primitives="libatomic-ops")
169 fi
171 ])
172 if test "x$drm_cv_atomic_primitives" = xIntel; then
173 AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1,
174 [Enable if your compiler supports the Intel __sync_* atomic primitives])
175 fi
176 if test "x$drm_cv_atomic_primitives" = "xlibatomic-ops"; then
177 AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 1, [Enable if you have libatomic-ops-dev installed])
178 fi
180 if test "x$drm_cv_atomic_primitives" = "xnone"; then
181 if test "x$INTEL" != "xauto"; then
182 AC_MSG_ERROR([libdrm_intel depends upon atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or install the libatomics-op-dev package, or, failing both of those, disable support for Intel GPUs by passing --disable-intel to ./configure])
183 else
184 INTEL=no
185 fi
186 fi
187 fi
189 AM_CONDITIONAL(HAVE_INTEL, [test "x$INTEL" != "xno"])
191 AC_ARG_WITH([kernel-source],
192 [AS_HELP_STRING([--with-kernel-source],
193 [specify path to linux kernel source])],
194 [kernel_source="$with_kernel_source"])
195 AC_SUBST(kernel_source)
197 AC_SUBST(WARN_CFLAGS)
198 AC_OUTPUT([
199 Makefile
200 intel/Makefile
201 intel/libdrm_intel.pc
202 radeon/Makefile
203 radeon/libdrm_radeon.pc
204 nouveau/Makefile
205 nouveau/libdrm_nouveau.pc
206 tests/Makefile
207 tests/modeprint/Makefile
208 tests/modetest/Makefile
209 include/Makefile
210 include/drm/Makefile
211 libdrm.pc])