build, qt: Native Qt builds in depends do not work

hebasto commented at 11:22 pm on April 3, 2021: member

macOS

When doing % make -C depends qt_configured the native build is expected:

0Configure summary:
1
2Build type: macx-clang (x86_64, CPU features: cx16 mmx sse sse2 sse3 ssse3 sse4.1)
3Compiler: clang (Apple) 12.0.0
4Configuration: sse2 aesni sse3 ssse3 sse4_1 sse4_2 avx avx2 avx512f avx512bw avx512cd avx512dq avx512er avx512ifma avx512pf avx512vbmi avx512vl f16c largefile precompile_header rdrnd shani silent x86SimdAlways release c++11 c++14 c++1z reduce_exports static stl
5Build options:
6  Mode ................................... release
7...

Actually, a cross-compile build is configured:

0Configure summary:
1
2Building on: macx-clang (x86_64, CPU features: cx16 mmx sse sse2 sse3 ssse3 sse4.1)
3Building for: macx-clang (x86_64, CPU features: cx16 mmx sse sse2 sse3 ssse3 sse4.1)
4Target compiler: clang (Apple) 12.0.0
5Configuration: cross_compile sse2 aesni sse3 ssse3 sse4_1 sse4_2 avx avx2 avx512f avx512bw avx512cd avx512dq avx512er avx512ifma avx512pf avx512vbmi avx512vl f16c largefile precompile_header rdrnd shani silent x86SimdAlways release c++11 c++14 c++1z reduce_exports static stl
6Build options:
7  Mode ................................... release
8...

The reason for this behavior is the line which was added in #21376: https://github.com/bitcoin/bitcoin/blob/e08f3193b543017702d000c2263bccbefa981c14/depends/packages/qt.mk#L116 as the -device-option is a cross-compile option, and it triggers cross-compiling.

It is worth to mention that before #21376 native builds with depends on macOS were broken (#14648, #19785).

Linux x86

Again, no native build when it is expected:

 0$ make -C depends qt_configured
 1...
 2Configure summary:
 3
 4Building on: linux-g++ (x86_64, CPU features: mmx sse sse2)
 5Building for: linux-g++-64 (x86_64, CPU features: mmx sse sse2)
 6Target compiler: gcc 9.3.0
 7Configuration: cross_compile sse2 aesni sse3 ssse3 sse4_1 sse4_2 avx avx2 avx512f avx512bw avx512cd avx512dq avx512er avx512ifma avx512pf avx512vbmi avx512vl enable_new_dtags f16c largefile precompile_header rdrnd shani silent x86SimdAlways release c++11 c++14 c++1z dbus reduce_exports static stl
 8Build options:
 9  Mode ................................... release
10...

The reason for this behavior is the line which was added in #12971: https://github.com/bitcoin/bitcoin/blob/e08f3193b543017702d000c2263bccbefa981c14/depends/packages/qt.mk#L141 with a comment:

This should fix the gitian build issue

ARM

Just broken.

hebasto added the label Bug on Apr 3, 2021

hebasto added the label Build system on Apr 3, 2021

jarolrod commented at 3:31 am on April 4, 2021: member

Confirming that cross-compile is attempted when trying to build natively using depends on macOS 11.2.3 and 10.15.7. I think this is why dark mode does not work when built from depends on 10.15.7.

jarolrod commented at 4:32 pm on April 12, 2021: member

Confirming cross-compile is attempted on linux as well (Ubuntu):

0Configure summary:
1
2Building on: linux-g++ (x86_64, CPU features: mmx sse sse2)
3Building for: linux-g++-64 (x86_64, CPU features: mmx sse sse2)
4Target compiler: gcc 9.3.0

fanquake closed this on Jul 18, 2021

sidhujag referenced this in commit 4a59fda74b on Jul 23, 2021

DrahtBot locked this on Aug 18, 2022

build, qt: Native Qt builds in depends do not work #21588

macOS

Linux x86

ARM