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libdrm: Set _XOPEN_SOURCE and _GNU_SOURCE 

Several POSIX extensions are used in the libdrm code (e.g., mknod and ffs).
Set _XOPEN_SOURCE and _GNU_SOURCE to something reasonable to ensure that
prototypes for these functions are available.  This is done in configure.ac
using AC_USE_SYSTEM_MACROS.  This requires autoconf 2.60 or later.  Eventually
the code should check for the existance of these defines and do something
reasonable if they are not available.

Inspired by a patch by Pauli Nieminen and suggestions from Julien Cristau.
Thanks.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
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Ian Romanick 2009-07-06 13:23:46 -07:00
parent 78fa590a1d
commit a953b3270c
1 changed files with 2 additions and 2 deletions
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4
configure.ac
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@ -18,7 +18,7 @@
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
AC_PREREQ(2.57)
AC_PREREQ(2.60)
AC_INIT([libdrm], 2.4.11, [dri-devel@lists.sourceforge.net], libdrm)
AC_CONFIG_SRCDIR([Makefile.am])
AM_INIT_AUTOMAKE([dist-bzip2])
@ -31,6 +31,7 @@ AC_PROG_CC
AC_HEADER_STDC
AC_SYS_LARGEFILE
AC_USE_SYSTEM_MACROS
PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
AC_SUBST(PTHREADSTUBS_CFLAGS)
@ -145,7 +146,6 @@ if test "x$HAVE_LIBUDEV" = xyes; then
fi
AM_CONDITIONAL(HAVE_LIBUDEV, [test "x$HAVE_LIBUDEV" = xyes])
AC_SUBST(WARN_CFLAGS)
AC_OUTPUT([
Makefile