* Richard W. M. Jones: > On Thu, Nov 30, 2023 at 06:09:55PM +0100, Florian Weimer wrote: >> nbdkit rjones > > Can you help me to understand the build error in this log? > > https://gitlab.com/fweimer-rh/fedora-modernc-logs/-/raw/main/logs/n/nbdkit.log?ref_type=heads > > I'm not exactly sure what / where the error is supposed to be. > > Possibly it is complaining about this autoconf test, but I don't > understand what's wrong with the cast, since AFAIK making a pointer > "more const" should be fine: > > configure:20816: checking if environ is declared in header files > configure:20833: gcc -c -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Werror=implicit-function-declaration -Werror=implicit-int -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer conftest.c >&5 > conftest.c: In function 'test': > conftest.c:62:22: error: initialization of 'const char **' from incompatible pointer type 'char **' > 62 | const char **env = environ; > | ^~~~~~~ > > (source: https://gitlab.com/nbdkit/nbdkit/-/blob/380f975bb9a07063f370835c51e1cd248a799485/configure.ac#L327) The inner pointer is const, not the outer pointer. The rule about compatibility only applies to the outer const, not to any inner const. Thanks, Florian -- _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
