commit: 9c0708dcae5ef0792e2273968f6f6ff45d90b11f
Author: Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Thu Jun 13 15:17:07 2024 +0000
Commit: Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Aug 6 08:29:01 2024 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9c0708dc
toolchain-funcs.eclass: Add tc-has-64bit-time_t
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 <mgorny <AT> gentoo.org>
eclass/toolchain-funcs.eclass | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass
index e73af9772938..9f0953c079e3 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
@@ -1253,4 +1253,14 @@ tc-is-lto() {
return "${ret}"
}
+# @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
