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configure: Conditionally build libdrm_intel 

Only build libdrm_intel automatically if we have support for atomic
operations. To force configure to build drm pass --enable-intel, which
will cause the configure to error if no support is found. Or pass
--disable-intel to explicitly prevent libdrm_intel from being built.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
main
Chris Wilson 2009-10-12 23:58:47 +01:00
parent a107e5b129
commit fc8f6be5a9
1 changed files with 14 additions and 5 deletions
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19
configure.ac
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@ -45,8 +45,8 @@ AC_ARG_ENABLE(udev, AS_HELP_STRING([--enable-udev],
AC_ARG_ENABLE(intel,
AS_HELP_STRING([--disable-intel],
[Enable support for intel's KMS API (default: enabled)]),
[INTEL=$enableval], [INTEL=yes])
[Enable support for intel's KMS API (default: auto)]),
[INTEL=$enableval], [INTEL=auto])
AC_ARG_ENABLE(nouveau-experimental-api,
AS_HELP_STRING([--enable-nouveau-experimental-api],
@ -151,9 +151,7 @@ if test "x$HAVE_LIBUDEV" = xyes; then
fi
AM_CONDITIONAL(HAVE_LIBUDEV, [test "x$HAVE_LIBUDEV" = xyes])
AM_CONDITIONAL(HAVE_INTEL, [test "x$INTEL" = xyes])
if test "x$INTEL" = xyes; then
if test "x$INTEL" != "xno"; then
# Check for atomic intrinsics
AC_CACHE_CHECK([for native atomic primitives], drm_cv_atomic_primitives,
[
@ -170,7 +168,18 @@ if test "x$INTEL" = xyes; then
AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1,
[Enable if your compiler supports the Intel __sync_* atomic primitives])
fi
if test "x$drm_cv_atomic_primitives" = "xnone"; then
if test "x$INTEL" != "xauto"; then
AC_MSG_ERROR([libdrm_intel depends upon atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or disable support for Intel GPUs by passing --disable-intel to ./configue])
else
INTEL=no
fi
fi
fi
AM_CONDITIONAL(HAVE_INTEL, [test "x$INTEL" != "xno"])
AC_SUBST(WARN_CFLAGS)
AC_OUTPUT([