[PATCH libdrm 2/5] configure: omap, freedreno and tegra require atomics

[Emil Velikov]

They have used them since day one, but the check was never there.

Cc: Rob Clark <robdclark at gmail.com>
Cc: Thierry Reding <treding at nvidia.com>
Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
---
 configure.ac | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 8afee83..ac1bf8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -214,7 +214,12 @@ 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$INTEL" != "xno" -o "x$RADEON" != "xno" -o "x$NOUVEAU" != "xno"; then
+if test "x$INTEL" != "xno" -o \
+	"x$RADEON" != "xno" -o \
+	"x$NOUVEAU" != "xno" -o \
+	"x$OMAP" != "xno" -o \
+	"x$FREEDRENO" != "xno" -o \
+	"x$TEGRA" != "xno"; then
 	if test "x$drm_cv_atomic_primitives" = "xnone"; then
 		if test "x$INTEL" != "xauto"; then
 			if test "x$INTEL" != "xno"; then
@@ -240,6 +245,15 @@ if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o "x$NOUVEAU" != "xno"; then
 			AC_MSG_WARN([Disabling libdrm_nouveau. It depends on atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or install the libatomics-op-dev package.])
 			NOUVEAU=no
 		fi
+		if test "x$OMAP" != "xauto"; then
+			AC_MSG_ERROR([libdrm_omap 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 OMAP GPUs by passing --disable-omap-experimental-api to ./configure])
+		fi
+		if test "x$FREEDRENO" != "xauto"; then
+			AC_MSG_ERROR([libdrm_freedreno depends upon atomic operations, which were not found for your compiler/cpu. Try compiling with -march=native, or install the libatomics-op-dev package, or, failing both of those, disable support for QCOM's Adreno GPUs by passing --disable-freedreno-experimental-api to ./configure])
+		fi
+		if test "x$TEGRA" != "xauto"; then
+			AC_MSG_ERROR([libdrm_tegra 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 NVIDIA's Tegra GPUs by passing --disable-tegra-experimental-api to ./configure])
+		fi
 	else
 		if test "x$INTEL" != "xno"; then
 			case $host_cpu in
-- 
2.1.3