Bug 789081

Summary:	dev-util/cppcheck-2.2 fails to build with sci-mathematics/z3-4.8.10 built with gcc-11
Product:	Gentoo Linux	Reporter:	Piotr <piorekf>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED INVALID
Severity:	normal	CC:	ionen
Priority:	Normal
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build log

Description Piotr 2021-05-09 12:27:09 UTC

cppcheck fails to build with error:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: /usr/lib64/libz3.so.4.8.10.0: undefined reference to `std::__throw_bad_array_n
ew_length()@GLIBCXX_3.4.29'
collect2: error: ld returned 1 exit status

Reproducible: Always

Comment 1 Piotr 2021-05-09 12:27:40 UTC

Created attachment 706704 [details]
build log

Comment 2 Piotr 2021-05-09 12:50:55 UTC

After rebuilding z3 with gcc-10 (and later qtcore due to similar error with /usr/lib64/libQt5Core.so.5.15.2) cppcheck built fine.
z3 builds fine with gcc-11 but apparently there are problems later with linking.
This bug report should be probably renamed.

Comment 3 Ionen Wolkens gentoo-dev

2021-05-09 13:04:32 UTC

This would happen with almost any package providing C++ libraries, and this isn't something new (been happening since gcc4 or so).

If you downgrade gcc, typically need to rebuild everything using libstdc++

https://wiki.gentoo.org/wiki/Upgrading_GCC#libstdc.2B.2B.so.6:_version_.60GLIBCXX_3.4.15.27_not_found