Improve handling of #include <*intrin.h> (#190)

* Don't use __has_include, it may report files exist when they don't. * _WIN32 and __x86_64__ seem to be the most universal controls Signed-off-by: Cary Phillips <[email protected]>
AcademySoftwareFoundation · Jul 30, 2021 · 5cc46f3 · 5cc46f3
1 parent b924915
commit 5cc46f3
Showing 1 changed file with 3 additions and 5 deletions.
diff --git a/src/Imath/half.h b/src/Imath/half.h
@@ -177,12 +177,10 @@
 /// floats in question.
 ///
 
-#if defined(__has_include) && defined(__x86_64__)
-#    if __has_include(<x86intrin.h>)
-#        include <x86intrin.h>
-#    elif __has_include(<intrin.h>)
+#ifdef _WIN32
 #        include <intrin.h>
-#    endif
+#elif defined(__x86_64__)
+#        include <x86intrin.h>
 #endif
 
 #include <stdint.h>