39 lines
1.6 KiB
Diff
39 lines
1.6 KiB
Diff
From ff2e16fe051405232fbd9a09c406767b229d27ec Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
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Date: Thu, 5 Nov 2020 00:13:22 +0200
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Subject: [PATCH 18/24] [libcxx] Enable filesystem by default for mingw targets
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This feature can be built successfully for windows now. However,
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the helper functions for __int128_t aren't available in MSVC
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configurations, so don't enable it by default there yet. (See
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https://reviews.llvm.org/D91139 for discussion on how to proceed
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with things in MSVC environments.)
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Differential Revision: https://reviews.llvm.org/D97075
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(cherry picked from commit 99fc4a65847a7020ae328e42a67e80cc29c1e762)
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---
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libcxx/CMakeLists.txt | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt
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index 9bf1a02f0908..b8716a34a325 100644
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--- a/libcxx/CMakeLists.txt
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+++ b/libcxx/CMakeLists.txt
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@@ -90,7 +90,11 @@ option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON)
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option(LIBCXX_ENABLE_STATIC "Build libc++ as a static library." ON)
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option(LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY "Build libc++experimental.a" ON)
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set(ENABLE_FILESYSTEM_DEFAULT ON)
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-if (WIN32)
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+if (WIN32 AND NOT MINGW)
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+ # Filesystem is buildable for windows, but it requires __int128 helper
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+ # functions, that currently are provided by libgcc or compiler_rt builtins.
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+ # These are available in MinGW environments, but not currently in MSVC
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+ # environments.
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set(ENABLE_FILESYSTEM_DEFAULT OFF)
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endif()
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option(LIBCXX_ENABLE_FILESYSTEM "Build filesystem as part of the main libc++ library"
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--
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2.25.1
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