forked from mirrors/nixpkgs
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
From 67f54fde2b1683aae3800f7a86a4e507c1125be8 Mon Sep 17 00:00:00 2001
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From: Yureka <yuka@yuka.dev>
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Date: Sat, 7 Aug 2021 09:16:46 +0200
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Subject: [PATCH] emulate clang 'sysroot + /include' logic
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Authored-By: Alexander Khovansky <alex@khovansky.me>
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Co-Authored-By: Yureka <yuka@yuka.dev>
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Clang provided by nix patches out logic that appends 'sysroot + /include'
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to the include path as well as automatic inclusion of libcxx includes (/include/c++/v1).
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The patch below adds that logic back by introducing cflags emulating this behavior to emcc
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invocations directly.
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Important note: with non-nix clang, sysroot/include dir ends up being the last
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in the include search order, right after the resource root.
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Hence usage of -idirafter. Clang also documents an -isystem-after flag
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but it doesn't appear to work
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---
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emcc.py | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/emcc.py b/emcc.py
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index 999314afc..0e23c066c 100755
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--- a/emcc.py
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+++ b/emcc.py
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@@ -759,7 +759,12 @@ def emsdk_ldflags(user_args):
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def emsdk_cflags(user_args):
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- cflags = ['--sysroot=' + shared.Cache.get_sysroot(absolute=True)]
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+ cflags = [
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+ '--sysroot=' + shared.Cache.get_sysroot(absolute=True),
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+ '-resource-dir=@resourceDir@',
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+ '-idirafter' + shared.Cache.get_sysroot(absolute=True) + os.path.join('/include'),
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+ '-iwithsysroot' + os.path.join('/include','c++','v1')
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+ ]
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def array_contains_any_of(hay, needles):
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for n in needles:
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--
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2.32.0
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