diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-10-13 15:13:00 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2009-10-13 15:13:00 +0100 |
| commit | 901bacd29cb5b242f68302b8384de6e193413a49 (patch) | |
| tree | fe4d79398d1f986c81fabe85d93010cd5939646f /configure.ac | |
| parent | 24c905f84120a7b0bcd7c5e86c58e908b9e850f9 (diff) | |
intel: Fallback to atomic-ops.h [libatomic-ops-dev]
Use the external implementation for atomic operations across a wide
range of architectures.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index fd6f696b..7efc4d4e 100644 --- a/configure.ac +++ b/configure.ac @@ -163,15 +163,23 @@ if test "x$INTEL" != "xno"; then ], [], drm_cv_atomic_primitives="Intel" ) + + if test "x$drm_cv_atomic_primitives" = "xnone"; then + AC_CHECK_HEADER([atomic_ops.h], drm_cv_atomic_primitives="libatomic-ops") + fi + ]) if test "x$drm_cv_atomic_primitives" = xIntel; then AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1, [Enable if your compiler supports the Intel __sync_* atomic primitives]) fi + if test "x$drm_cv_atomic_primitives" = "xlibatomic-ops"; then + AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 1, [Enable if you have libatomic-ops-dev installed]) + 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 ./configure]) + 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]) else INTEL=no fi |