[PATCH i-g-t 3/7] lib: Fix compilation on non-x86

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

The meson build avoids the failure by excluding the igt_x86.c file from
the compilation. autotools being what they are don't support that in an
easy way, so just use the preprocessor to avoid the duplicate function
definitions.

Since igt_x86.c will now be ignored for non-x86 builds, the meson work-
around can be removed.

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 lib/igt_x86.c   | 2 ++
 lib/igt_x86.h   | 2 +-
 lib/meson.build | 5 +----
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/igt_x86.c b/lib/igt_x86.c
index 0f0963ced044..0ed3c6f1d356 100644
--- a/lib/igt_x86.c
+++ b/lib/igt_x86.c
@@ -93,6 +93,7 @@
 
 #define has_YMM 0x1
 
+#if defined(__x86_64__) || defined(__i386__)
 unsigned igt_x86_features(void)
 {
 	unsigned max = __get_cpuid_max(BASIC_CPUID, 0);
@@ -172,3 +173,4 @@ char *igt_x86_features_to_string(unsigned features, char *line)
 
 	return ret;
 }
+#endif
diff --git a/lib/igt_x86.h b/lib/igt_x86.h
index d6dcfa108331..27b7f0fd5837 100644
--- a/lib/igt_x86.h
+++ b/lib/igt_x86.h
@@ -40,7 +40,7 @@
 #define AVX	0x80
 #define AVX2	0x100
 
-#if defined(__x86_64__)
+#if defined(__x86_64__) || defined(__i386__)
 unsigned igt_x86_features(void);
 char *igt_x86_features_to_string(unsigned features, char *line);
 #else
diff --git a/lib/meson.build b/lib/meson.build
index 42919eef52a8..e89d4bdf8278 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -56,6 +56,7 @@ lib_sources = [
 	'igt_stats.c',
 	'igt_sysfs.c',
 	'igt_vgem.c',
+	'igt_x86.c',
 	'instdone.c',
 	'intel_batchbuffer.c',
 	'intel_chipset.c',
@@ -88,10 +89,6 @@ lib_sources = [
 	'igt_kmod.c',
 ]
 
-if ['x86', 'x86_64'].contains(host_machine.cpu_family())
-    lib_sources += 'igt_x86.c'
-endif
-
 lib_deps = [
 	cairo,
 	glib,
-- 
2.14.1