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- From e9d1f80dffb4e29e44fc0b0627704af15cdd281a Mon Sep 17 00:00:00 2001
- From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
- Date: Sun, 13 Mar 2022 12:05:04 +0100
- Subject: [PATCH] src/corelib/configure.json: fix atomicfptr detection
- Fix atomicfptr detection on sparc v8 by linking with libatomic if needed
- to avoid the following build failure:
- /sysroot -std=gnu++11 -w -fPIC -I. -I/home/peko/autobuild/instance-0/output-1/build/qt5base-d16bf02a11953dcac01dca73e6f3778f293adefe/mkspecs/devices/linux-buildroot-g++ -o main.o main.cpp
- > /home/peko/autobuild/instance-0/output-1/host/bin/sparc-linux-g++ --sysroot=/home/peko/autobuild/instance-0/output-1/host/sparc-buildroot-linux-uclibc/sysroot --sysroot=/home/peko/autobuild/instance-0/output-1/host/sparc-buildroot-linux-uclibc/sysroot -Wl,-O1 -o atomicfptr main.o -lexecinfo -lrt -lpthread -ldl
- > /home/peko/autobuild/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/sparc-buildroot-linux-uclibc/10.3.0/../../../../sparc-buildroot-linux-uclibc/bin/ld: main.o: in function `test(std::atomic<void (*)(int)> volatile&)':
- > main.cpp:(.text+0x40): undefined reference to `__atomic_compare_exchange_4'
- > collect2: error: ld returned 1 exit status
- > make[1]: *** [Makefile:69: atomicfptr] Error 1
- [...]
- ERROR: detected a std::atomic implementation that fails for function pointers.
- Please apply the patch corresponding to your Standard Library vendor, found in
- qtbase/config.tests/atomicfptr
- Fixes:
- - http://autobuild.buildroot.org/results/5a20e984a5536165056b3fbd93b8712e8ddbeed4
- Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
- [Upstream status:
- https://invent.kde.org/qt/qt/qtbase/-/merge_requests/138]
- ---
- src/corelib/configure.json | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
- diff --git a/src/corelib/configure.json b/src/corelib/configure.json
- index 9b5d19d41b..ac88f5856c 100644
- --- a/src/corelib/configure.json
- +++ b/src/corelib/configure.json
- @@ -309,7 +309,8 @@
- "test(fptr);"
- ],
- "qmake": "CONFIG += c++11"
- - }
- + },
- + "use": "libatomic"
- },
- "clock-monotonic": {
- "label": "POSIX monotonic clock",
- --
- 2.34.1
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