Configure UX

[erlend-aasland]

Feature or enhancement

The LDLIBRARY and HOSTRUNNER checks overlap; this results in garbled output:

$ ./configure
[...]
checking LDLIBRARY... checking HOSTRUNNER... 
libpython$(VERSION)$(ABIFLAGS).a

The IPv6 library check is very subtle:

$ ./configure
[...]
configure: using libc

Suggesting to clean this up, for improved configure user experience:

$ ./configure
[...]
checking LDLIBRARY... libpython$(VERSION)$(ABIFLAGS).a
checking HOSTRUNNER...
[...]
checking ipv6 stack type... kame
checking ipv6 library... libc

Linked PRs

• gh-115806: Improve configure output #115807
• gh-115806: Don't mangle output of configure 'ipv6 stack type' check #116165
• gh-115806: Don't mangle gdbm header dependency detection output #129390

[erlend-aasland]

Ah, our PR gh-116016 mangled the output again:

checking ipv6 stack type... checking for IPV6_INRIA_VERSION defined in netinet/in.h... no
checking for __KAME__ defined in netinet/in.h... yes
kame

With #116165 applied, we get this:

checking for IPV6_INRIA_VERSION defined in netinet/in.h... no
checking for __KAME__ defined in netinet/in.h... yes
checking ipv6 stack type... kame
checking ipv6 library... libc

[erlend-aasland]

configure -C still produces some garbled output:

checking for library containing dbm_open... (cached) -lgdbm_compat
checking for ndbm presence and linker args... yes (-lgdbm_compat)
(cached) (cached) checking for library containing dbm_open... -lgdbm_compat