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.
20
21AC_PREREQ(2.57)
22AC_INIT([libdrm], 2.4.11, [dri-devel@lists.sourceforge.net], libdrm)
23AC_CONFIG_SRCDIR([Makefile.am])
24AM_INIT_AUTOMAKE([dist-bzip2])
25
26AM_CONFIG_HEADER([libdrm/config.h])
27
28AC_DISABLE_STATIC
29AC_PROG_LIBTOOL
30AC_PROG_CC
31
32AC_HEADER_STDC
33AC_SYS_LARGEFILE
34
35PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
36AC_SUBST(PTHREADSTUBS_CFLAGS)
37AC_SUBST(PTHREADSTUBS_LIBS)
38
39pkgconfigdir=${libdir}/pkgconfig
40AC_SUBST(pkgconfigdir)
41AC_ARG_ENABLE(udev,	AS_HELP_STRING([--enable-udev],
42				[Enable support for using udev instead of mknod (default: disabled)]),
43				[UDEV=$enableval], [UDEV=no])
44
45AC_ARG_ENABLE(nouveau-experimental-api,
46	      AS_HELP_STRING([--enable-nouveau-experimental-api],
47	      [Enable support for nouveau's experimental API (default: disabled)]),
48	      [NOUVEAU=$enableval], [NOUVEAU=no])
49
50dnl ===========================================================================
51dnl check compiler flags
52AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
53  AC_MSG_CHECKING([whether $CC supports $1])
54
55  libdrm_save_CFLAGS="$CFLAGS"
56  CFLAGS="$CFLAGS $1"
57
58  AC_COMPILE_IFELSE([ ], [libdrm_cc_flag=yes], [libdrm_cc_flag=no])
59  CFLAGS="$libdrm_save_CFLAGS"
60
61  if test "x$libdrm_cc_flag" = "xyes"; then
62    ifelse([$2], , :, [$2])
63  else
64    ifelse([$3], , :, [$3])
65  fi
66  AC_MSG_RESULT([$libdrm_cc_flag])
67])
68
69dnl We use clock_gettime to check for timeouts in drmWaitVBlank
70
71AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
72               [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
73                             [AC_MSG_ERROR([Couldn't find clock_gettime])])])
74AC_SUBST([CLOCK_LIB])
75
76dnl Use lots of warning flags with with gcc and compatible compilers
77
78dnl Note: if you change the following variable, the cache is automatically
79dnl skipped and all flags rechecked.  So there's no need to do anything
80dnl else.  If for any reason you need to force a recheck, just change
81dnl MAYBE_WARN in an ignorable way (like adding whitespace)
82
83MAYBE_WARN="-Wall -Wextra \
84-Wsign-compare -Werror-implicit-function-declaration \
85-Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
86-Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
87-Wpacked -Wswitch-enum -Wmissing-format-attribute \
88-Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \
89-Wdeclaration-after-statement -Wold-style-definition \
90-Wno-missing-field-initializers -Wno-unused-parameter \
91-Wno-attributes -Wno-long-long -Winline"
92
93# invalidate cached value if MAYBE_WARN has changed
94if test "x$libdrm_cv_warn_maybe" != "x$MAYBE_WARN"; then
95	unset libdrm_cv_warn_cflags
96fi
97AC_CACHE_CHECK([for supported warning flags], libdrm_cv_warn_cflags, [
98	echo
99	WARN_CFLAGS=""
100
101	# Some warning options are not supported by all versions of
102	# gcc, so test all desired options against the current
103	# compiler.
104	#
105	# Note that there are some order dependencies
106	# here. Specifically, an option that disables a warning will
107	# have no net effect if a later option then enables that
108	# warnings, (perhaps implicitly). So we put some grouped
109	# options (-Wall and -Wextra) up front and the -Wno options
110	# last.
111
112	for W in $MAYBE_WARN; do
113		LIBDRM_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
114	done
115
116	libdrm_cv_warn_cflags=$WARN_CFLAGS
117	libdrm_cv_warn_maybe=$MAYBE_WARN
118
119	AC_MSG_CHECKING([which warning flags were supported])])
120WARN_CFLAGS="$libdrm_cv_warn_cflags"
121
122if test "x$UDEV" = xyes; then
123	AC_DEFINE(UDEV, 1, [Have UDEV support])
124fi
125
126AM_CONDITIONAL(HAVE_NOUVEAU, [test "x$NOUVEAU" = xyes])
127
128PKG_CHECK_MODULES(CAIRO, cairo, [HAVE_CAIRO=yes], [HAVE_CAIRO=no])
129if test "x$HAVE_CAIRO" = xyes; then
130	AC_DEFINE(HAVE_CAIRO, 1, [Have cairo support])
131fi
132AM_CONDITIONAL(HAVE_CAIRO, [test "x$HAVE_CAIRO" = xyes])
133
134# For enumerating devices in test case
135PKG_CHECK_MODULES(LIBUDEV, libudev, [HAVE_LIBUDEV=yes], [HAVE_LIBUDEV=no])
136if test "x$HAVE_LIBUDEV" = xyes; then
137   	AC_DEFINE(HAVE_LIBUDEV, 1, [Have libudev support])
138fi
139AM_CONDITIONAL(HAVE_LIBUDEV, [test "x$HAVE_LIBUDEV" = xyes])
140
141
142AC_SUBST(WARN_CFLAGS)
143AC_OUTPUT([
144	Makefile
145	libdrm/Makefile
146	libdrm/intel/Makefile
147	libdrm/nouveau/Makefile
148	libdrm/nouveau/libdrm_nouveau.pc
149	shared-core/Makefile
150	tests/Makefile
151	tests/modeprint/Makefile
152	tests/modetest/Makefile
153	libdrm.pc
154	libdrm_intel.pc])
155