Not sure if this is a problem.
Qt 0.16.3 runs successful on Ubuntu Trusty (14.04.5).
However, Qt 0.17.0rc4 (and master) gives me undefined symbol: FT_Get_Font_Format:
0.17.0rc4:
0user@ubuntu:~/Desktop$ lsb_release -a
1No LSB modules are available.
2Distributor ID: Ubuntu
3Description: Ubuntu 14.04.5 LTS
4Release: 14.04
5Codename: trusty
6user@ubuntu:~/Desktop$ ./bitcoin-qt --regtest
7./bitcoin-qt: symbol lookup error: ./bitcoin-qt: undefined symbol: FT_Get_Font_Format
Could you please dump the output of ldd bitcoin-qt as well as readelf -d bitcoin-qt ?
Looks like the Fontconfig abi might’ve changed :\
0user@ubuntu:~/Desktop$ ldd ./bitcoin-qt
1 linux-vdso.so.1 => (0x00007ffef759f000)
2 libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f8e3a444000)
3 libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8e3a240000)
4 libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8e39f3a000)
5 libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f8e39cfd000)
6 libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f8e39a5a000)
7 libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f8e39858000)
8 libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f8e39522000)
9 libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f8e39303000)
10 librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f8e390fb000)
11 libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f8e38ee4000)
12 libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8e38b1b000)
13 /lib64/ld-linux-x86-64.so.2 (0x000055f422e5b000)
14 libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f8e388f1000)
15 libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f8e386d7000)
16 libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f8e384b1000)
17 libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f8e382ad000)
18 libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f8e380a6000)
0user@ubuntu:~/Desktop$ readelf -d ./bitcoin-qt
1
2Dynamic section at offset 0x21e7308 contains 38 entries:
3 Tag Type Name/Value
4 0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
5 0x0000000000000001 (NEEDED) Shared library: [libdl.so.2]
6 0x0000000000000001 (NEEDED) Shared library: [libm.so.6]
7 0x0000000000000001 (NEEDED) Shared library: [libfontconfig.so.1]
8 0x0000000000000001 (NEEDED) Shared library: [libfreetype.so.6]
9 0x0000000000000001 (NEEDED) Shared library: [libX11-xcb.so.1]
10 0x0000000000000001 (NEEDED) Shared library: [libX11.so.6]
11 0x0000000000000001 (NEEDED) Shared library: [libxcb.so.1]
12 0x0000000000000001 (NEEDED) Shared library: [librt.so.1]
13 0x0000000000000001 (NEEDED) Shared library: [libgcc_s.so.1]
14 0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
15 0x0000000000000001 (NEEDED) Shared library: [ld-linux-x86-64.so.2]
16 0x000000000000000c (INIT) 0x144118
17 0x000000000000000d (FINI) 0x15d8260
18 0x0000000000000019 (INIT_ARRAY) 0x2363358
19 0x000000000000001b (INIT_ARRAYSZ) 1464 (bytes)
20 0x000000000000001a (FINI_ARRAY) 0x2363910
21 0x000000000000001c (FINI_ARRAYSZ) 16 (bytes)
22 0x000000006ffffef5 (GNU_HASH) 0x2d0
23 0x0000000000000005 (STRTAB) 0x3e80
24 0x0000000000000006 (SYMTAB) 0x310
25 0x000000000000000a (STRSZ) 8630 (bytes)
26 0x000000000000000b (SYMENT) 24 (bytes)
27 0x0000000000000015 (DEBUG) 0x0
28 0x0000000000000003 (PLTGOT) 0x23e75a8
29 0x0000000000000002 (PLTRELSZ) 14544 (bytes)
30 0x0000000000000014 (PLTREL) RELA
31 0x0000000000000017 (JMPREL) 0x140848
32 0x0000000000000007 (RELA) 0x6700
33 0x0000000000000008 (RELASZ) 1286472 (bytes)
34 0x0000000000000009 (RELAENT) 24 (bytes)
35 0x000000000000001e (FLAGS) BIND_NOW
36 0x000000006ffffffb (FLAGS_1) Flags: NOW 8000000
37 0x000000006ffffffe (VERNEED) 0x6530
38 0x000000006fffffff (VERNEEDNUM) 7
39 0x000000006ffffff0 (VERSYM) 0x6036
40 0x000000006ffffff9 (RELACOUNT) 53576
41 0x0000000000000000 (NULL) 0x0
This is an issue with qt’s usage of freetype.
A few years ago, libfreetype introduced FT_Get_Font_Format as an alias for FT_Get_X11_Font_Format, but FT_Get_X11_Font_Format was kept for back-compat.
Our last qt bump introduced a call to FT_Get_Font_Format. I think that if it used the old name, it would be back-compat to older runtime freetype libs. @jonasschnelli Can you give this quick (untested) hack a try?
0diff --git a/depends/packages/qt.mk b/depends/packages/qt.mk
1index 5286f89..d15f147 100644
2--- a/depends/packages/qt.mk
3+++ b/depends/packages/qt.mk
4@@ -120,6 +120,7 @@ define $(package)_extract_cmds
5 endef
6
7 define $(package)_preprocess_cmds
8+ sed -i.old "s|FT_Get_Font_Format|FT_Get_X11_Font_Format|" qtbase/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp && \
9 sed -i.old "s|updateqm.commands = \$$$$\$$$$LRELEASE|updateqm.commands = $($(package)_extract_dir)/qttools/bin/lrelease|" qttranslations/translations/translations.pro && \
10 sed -i.old "/updateqm.depends =/d" qttranslations/translations/translations.pro && \
11 sed -i.old "s/src_plugins.depends = src_sql src_network/src_plugins.depends = src_network/" qtbase/src/src.pro && \
@theuni I spun up a new 14.04.5 Ubuntu VM and cloned af4b8a3.
Doing a depends build, and running bitcoin-qt results in the same error as @jonasschnelli (make check fails):
After applying your patch and re-building, make check passes and bitcoin-qt runs:
That’s all I tested.