Signed-off-by: Jonathan Wakely <jwak...@redhat.com>
libstdc++-v3/ChangeLog:
* include/experimental/simd: Do not define anything pre-C++17.
Tested powerpc64le-linux. Committed to trunk.
commit 36adced3b6b7cae17d7b42e4573bd0f4194b1f70
Author: Jonathan Wakely <jwak...@redhat.com>
Date: Wed Jun 30 21:35:51 2021
libstdc++: Make <experimental/simd> depend on C++17
Signed-off-by: Jonathan Wakely <jwak...@redhat.com>
libstdc++-v3/ChangeLog:
* include/experimental/simd: Do not define anything pre-C++17.
diff --git a/libstdc++-v3/include/experimental/simd
b/libstdc++-v3/include/experimental/simd
index da2d0479cf3..beccbc14fa5 100644
--- a/libstdc++-v3/include/experimental/simd
+++ b/libstdc++-v3/include/experimental/simd
@@ -33,6 +33,8 @@
#ifndef _GLIBCXX_EXPERIMENTAL_SIMD
#define _GLIBCXX_EXPERIMENTAL_SIMD
+#if __cplusplus >= 201703L
+
#define __cpp_lib_experimental_parallel_simd 201803
#pragma GCC diagnostic push
@@ -66,5 +68,6 @@
#pragma GCC diagnostic pop
+#endif // C++17
#endif // _GLIBCXX_EXPERIMENTAL_SIMD
// vim: ft=cpp
