Add a helper function to check whether time_t is 64-bit. This could be used e.g. to deselect tests that rely on timestamps exceeding Y2k38. It is meant to be more future-proof than hardcoding a list of 32-bit architectures, given the necessity of switching to 64-bit time_t in the future.
Signed-off-by: Michał Górny <mgo...@gentoo.org> --- eclass/toolchain-funcs.eclass | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) Pull-Request: https://github.com/gentoo/gentoo/pull/37142 diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass index cde84e6f34c8..3e20e956e9c2 100644 --- a/eclass/toolchain-funcs.eclass +++ b/eclass/toolchain-funcs.eclass @@ -1,4 +1,4 @@ -# Copyright 2002-2023 Gentoo Authors +# Copyright 2002-2024 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 # @ECLASS: toolchain-funcs.eclass @@ -1251,4 +1251,14 @@ tc-is-lto() { return 1 } +# @FUNCTION: tc-has-64bit-time_t +# @RETURN: Shell true if time_t is at least 64 bits long, false otherwise +tc-has-64bit-time_t() { + "$(tc-getCC)" ${CFLAGS} ${CPPFLAGS} -c -x c - -o /dev/null <<-EOF &>/dev/null + #include <sys/types.h> + int test[sizeof(time_t) >= 8 ? 1 : -1]; + EOF + return $? +} + fi -- 2.45.2
