Package: libre2-dev Version: 20210201+dfsg-1 Severity: normal re2.pc contains "-std=c++11". This conflicts with other "-std" options, especially if one wants to use a newer standard (which otherwise works with libre2, as indicated by its support for string_view, e.g.).
In order to make sure it's used only with C++11 or newer, you may want to check __cplusplus in the header instead. -- System Information: Debian Release: 11.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'), (500, 'proposed-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-9-amd64 (SMP w/24 CPU threads) Locale: LANG=de_DE, LC_CTYPE=de_DE (charmap=ISO-8859-1), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) Versions of packages libre2-dev depends on: ii libre2-9 20210201+dfsg-1 libre2-dev recommends no packages. libre2-dev suggests no packages. -- no debconf information