From 7ae73da23ad998bd1e63ad213cf7a02e61191951 Mon Sep 17 00:00:00 2001
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From: Romain Naour <romain.naour@gmail.com>
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Date: Sat, 23 May 2020 19:01:19 +0200
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Subject: [PATCH] gn.pro: don't link statically with libstc++
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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While cross-compiling, qt5webengine is building a host tool but
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want to link the libstdc++ statically. This requires to install
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libstdc++-static package on the host (Fedora package name).
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Otherwise the link fail with:
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[185/185] LINK gn
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FAILED: gn
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/usr/bin/g++ -O3 -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,-strip-all -Wl,--as-needed -static-libstdc++ -pthread -o gn -Wl,--start-group tools/gn/gn_main.o base.a gn_lib.a -Wl,--end-group -ldl
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/usr/bin/ld : unable to find -lstdc++
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[...]
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Project ERROR: GN build error!
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Add --no-static-libstdc++ argument to gn.pro to link to
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libstdc++.so.6 instead of libstdc++.a.
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--no-static-libstdc++ has been added by [1] but it force
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linking statically by default.
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[1] https://github.com/qt/qtwebengine-chromium/commit/cfab9198a9917f42cf08b1caf84ab9b71aac1911#diff-905c8f054808213577c0a92d1b704615
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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src/buildtools/gn.pro | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/buildtools/gn.pro b/src/buildtools/gn.pro
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index 033202e6..5dd8e241 100644
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--- a/src/buildtools/gn.pro
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+++ b/src/buildtools/gn.pro
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@@ -20,7 +20,8 @@ build_pass|!debug_and_release {
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gn_gen_args = --no-last-commit-position --out-path $$out_path \
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--cc \"$$which($$QMAKE_CC)\" --cxx \"$$which($$QMAKE_CXX)\" \
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- --ld \"$$which($$QMAKE_LINK)\"
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+ --ld \"$$which($$QMAKE_LINK)\" \
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+ --no-static-libstdc++
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msvc:!clang_cl: gn_gen_args += --use-lto
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--
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2.25.4
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