Define _CS_PATH on the BSDs #4738
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According to https://man.netbsd.org/confstr.3 _CS_PATH is obsoleted by sysctl (which has a USER_CS_PATH equivalent), but Linux doesn't have that. So the simplest thing for applications is to use _CS_PATH which is part of POSIX. Define, matching the <unistd.h> header. We could maybe share this definition in src/unix/bsd/netbsdlike/mod.rs, but I saw that existing definitions are not shared either, so I'm not sure. $ grep src/unix/bsd/netbsdlike -e _PC_LINK_MAX src/unix/bsd/netbsdlike/netbsd/mod.rs:1599:11:pub const _PC_LINK_MAX: c_int = 1; src/unix/bsd/netbsdlike/openbsd/mod.rs:1193:11:pub const _PC_LINK_MAX: c_int = 1; Originally reported in fish-shell/fish-shell#11892
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According to https://man.netbsd.org/confstr.3 _CS_PATH is obsoleted by sysctl (which has a USER_CS_PATH equivalent), but Linux doesn't have that. So the simplest thing for applications is to use _CS_PATH which is part of POSIX. Define, matching the <unistd.h> header. We could maybe share this definition in src/unix/bsd/netbsdlike/mod.rs, but I saw that existing definitions are not shared either, so I'm not sure. $ grep src/unix/bsd/netbsdlike -e _PC_LINK_MAX src/unix/bsd/netbsdlike/netbsd/mod.rs:1599:11:pub const _PC_LINK_MAX: c_int = 1; src/unix/bsd/netbsdlike/openbsd/mod.rs:1193:11:pub const _PC_LINK_MAX: c_int = 1; Originally reported in fish-shell/fish-shell#11892 (backport rust-lang#4738) (cherry picked from commit b1be455)
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According to https://man.netbsd.org/confstr.3 _CS_PATH is obsoleted by sysctl (which has a USER_CS_PATH equivalent), but Linux doesn't have that. So the simplest thing for applications is to use _CS_PATH which is part of POSIX. Define, matching the <unistd.h> header. We could maybe share this definition in src/unix/bsd/netbsdlike/mod.rs, but I saw that existing definitions are not shared either, so I'm not sure. $ grep src/unix/bsd/netbsdlike -e _PC_LINK_MAX src/unix/bsd/netbsdlike/netbsd/mod.rs:1599:11:pub const _PC_LINK_MAX: c_int = 1; src/unix/bsd/netbsdlike/openbsd/mod.rs:1193:11:pub const _PC_LINK_MAX: c_int = 1; Originally reported in fish-shell/fish-shell#11892 (backport #4738) (cherry picked from commit b1be455)
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According to
https://man.netbsd.org/confstr.3
_CS_PATH is obsoleted by sysctl (which has a USER_CS_PATH equivalent),
but Linux doesn't have that.
So the simplest thing for applications is to use _CS_PATH which is
part of POSIX. Define, matching the <unistd.h> header.
We could maybe share this definition in src/unix/bsd/netbsdlike/mod.rs,
but I saw that existing definitions are not shared either, so I'm
not sure.
Originally reported in fish-shell/fish-shell#11892