123 lines
4.1 KiB
Plaintext
123 lines
4.1 KiB
Plaintext
# Copyright 2005 Adam Jackson.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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AC_PREREQ(2.57)
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AC_INIT([libdrm], 2.4.0, [dri-devel@lists.sourceforge.net], libdrm)
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AC_CONFIG_SRCDIR([Makefile.am])
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AM_INIT_AUTOMAKE([dist-bzip2])
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AM_CONFIG_HEADER([libdrm/config.h])
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AC_DISABLE_STATIC
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AC_PROG_LIBTOOL
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AC_PROG_CC
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AC_HEADER_STDC
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AC_SYS_LARGEFILE
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PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
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AC_SUBST(PTHREADSTUBS_CFLAGS)
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AC_SUBST(PTHREADSTUBS_LIBS)
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pkgconfigdir=${libdir}/pkgconfig
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AC_SUBST(pkgconfigdir)
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AC_ARG_ENABLE(udev, AS_HELP_STRING([--enable-udev],
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[Enable support for using udev instead of mknod (default: disabled)]),
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[UDEV=$enableval], [UDEV=no])
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dnl ===========================================================================
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dnl check compiler flags
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AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
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AC_MSG_CHECKING([whether $CC supports $1])
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libdrm_save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $1"
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AC_COMPILE_IFELSE([ ], [libdrm_cc_flag=yes], [libdrm_cc_flag=no])
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CFLAGS="$libdrm_save_CFLAGS"
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if test "x$libdrm_cc_flag" = "xyes"; then
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ifelse([$2], , :, [$2])
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else
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ifelse([$3], , :, [$3])
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fi
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AC_MSG_RESULT([$libdrm_cc_flag])
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])
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dnl Use lots of warning flags with with gcc and compatible compilers
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dnl Note: if you change the following variable, the cache is automatically
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dnl skipped and all flags rechecked. So there's no need to do anything
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dnl else. If for any reason you need to force a recheck, just change
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dnl MAYBE_WARN in an ignorable way (like adding whitespace)
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MAYBE_WARN="-Wall -Wextra \
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-Wsign-compare -Werror-implicit-function-declaration \
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-Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
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-Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
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-Wpacked -Wswitch-enum -Wmissing-format-attribute \
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-Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \
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-Wdeclaration-after-statement -Wold-style-definition \
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-Wno-missing-field-initializers -Wno-unused-parameter \
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-Wno-attributes -Wno-long-long -Winline"
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# invalidate cached value if MAYBE_WARN has changed
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if test "x$libdrm_cv_warn_maybe" != "x$MAYBE_WARN"; then
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unset libdrm_cv_warn_cflags
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fi
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AC_CACHE_CHECK([for supported warning flags], libdrm_cv_warn_cflags, [
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echo
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WARN_CFLAGS=""
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# Some warning options are not supported by all versions of
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# gcc, so test all desired options against the current
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# compiler.
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#
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# Note that there are some order dependencies
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# here. Specifically, an option that disables a warning will
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# have no net effect if a later option then enables that
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# warnings, (perhaps implicitly). So we put some grouped
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# options (-Wall and -Wextra) up front and the -Wno options
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# last.
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for W in $MAYBE_WARN; do
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LIBDRM_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
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done
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libdrm_cv_warn_cflags=$WARN_CFLAGS
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libdrm_cv_warn_maybe=$MAYBE_WARN
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AC_MSG_CHECKING([which warning flags were supported])])
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WARN_CFLAGS="$libdrm_cv_warn_cflags"
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if test "x$UDEV" = xyes; then
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AC_DEFINE(UDEV, 1, [Have UDEV support])
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fi
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AC_SUBST(WARN_CFLAGS)
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AC_OUTPUT([
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Makefile
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libdrm/Makefile
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libdrm/intel/Makefile
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shared-core/Makefile
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tests/Makefile
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libdrm.pc])
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