On Thu, 2024-06-13 at 17:44 +0100, James Le Cuirot wrote: > On Thu, 2024-06-13 at 17:23 +0200, Michał Górny wrote: > > 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 > > I take it this can't be done with tc-cpp-is-true because you need more than > just the preprocessor? > > Please don't quote $(tc-getCC), CC can have additional arguments in some > cases. We don't quote $(tc-getTARGET_CPP) in tc-cpp-is-true.
Right, thx. -- Best regards, Michał Górny
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