This is intended to prevent packages from automatically switching to
64-bit time_t on 32-bit ABIs. Making this switch in an uncontrolled
manner will lead to inconsistent library ABIs that fail at runtime.

At a later time, we will introduce new profiles to enable 64-bit time_t distro-wide.

https://wiki.gentoo.org/wiki/Project:Toolchain/time64_migration

Bug: https://bugs.gentoo.org/828001
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
---
profiles/default/linux/make.defaults | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/profiles/default/linux/make.defaults b/profiles/default/linux/make.defaults
index 6ae7cf297cf..53ace7e229c 100644
--- a/profiles/default/linux/make.defaults
+++ b/profiles/default/linux/make.defaults
@@ -53,3 +53,7 @@ VIDEO_CARDS="dummy fbdev v4l"
# Note that adding LDFLAGS="-Wl,-O1 ${LDFLAGS}" breaks dev-util/boost-build
# because of whitespace.
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
+
+# Mike Gilbert <floppym@gentoo.org> (2021-12-17)
+# Prevent automagic use of 64-bit time_t.
+gl_cv_type_time_t_bits_macro="no"
--
2.34.1

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Can you put the bug # in the comment in the file?

On Fri, Dec 17, 2021, 09:42 Mike Gilbert <floppym@gentoo.org> wrote:

This is intended to prevent packages from automatically switching to
64-bit time_t on 32-bit ABIs. Making this switch in an uncontrolled
manner will lead to inconsistent library ABIs that fail at runtime.

At a later time, we will introduce new profiles to enable 64-bit time_t distro-wide.

https://wiki.gentoo.org/wiki/Project:Toolchain/time64_migration

Bug: https://bugs.gentoo.org/828001
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
---
profiles/default/linux/make.defaults | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/profiles/default/linux/make.defaults b/profiles/default/linux/make.defaults
index 6ae7cf297cf..53ace7e229c 100644
--- a/profiles/default/linux/make.defaults
+++ b/profiles/default/linux/make.defaults
@@ -53,3 +53,7 @@ VIDEO_CARDS="dummy fbdev v4l"
# Note that adding LDFLAGS="-Wl,-O1 ${LDFLAGS}" breaks
dev-util/boost-build
# because of whitespace.
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
+
+# Mike Gilbert <floppym@gentoo.org> (2021-12-17)
+# Prevent automagic use of 64-bit time_t.
+gl_cv_type_time_t_bits_macro="no"
--
2.34.1

<div dir="auto"><div>Can you put the bug # in the comment in the file?<br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Dec 17, 2021, 09:42 Mike Gilbert &lt;<a href="mailto:floppym@gentoo.org">floppym@gentoo.org</a>&gt; wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This is intended to prevent packages from automatically switching to<br>
64-bit time_t on 32-bit ABIs. Making this switch in an uncontrolled<br>
manner will lead to inconsistent library ABIs that fail at runtime.<br>

At a later time, we will introduce new profiles to enable 64-bit time_t<br> distro-wide.<br>

<a href="https://wiki.gentoo.org/wiki/Project:Toolchain/time64_migration" rel="noreferrer noreferrer" target="_blank">https://wiki.gentoo.org/wiki/Project:Toolchain/time64_migration</a><br>

Bug: <a href="https://bugs.gentoo.org/828001" rel="noreferrer noreferrer" target="_blank">https://bugs.gentoo.org/828001</a><br>
Signed-off-by: Mike Gilbert &lt;<a href="mailto:floppym@gentoo.org" target="_blank" rel="noreferrer">floppym@gentoo.org</a>&gt;<br>
---<br>
 profiles/default/linux/make.defaults | 4 ++++<br>
 1 file changed, 4 insertions(+)<br>

diff --git a/profiles/default/linux/make.defaults b/profiles/default/linux/make.defaults<br>
index 6ae7cf297cf..53ace7e229c 100644<br>
--- a/profiles/default/linux/make.defaults<br>
+++ b/profiles/default/linux/make.defaults<br>
@@ -53,3 +53,7 @@ VIDEO_CARDS=&quot;dummy fbdev v4l&quot;<br>
 # Note that adding LDFLAGS=&quot;-Wl,-O1 ${LDFLAGS}&quot; breaks dev-util/boost-build<br>
 # because of whitespace.<br>
 LDFLAGS=&quot;-Wl,-O1 -Wl,--as-needed&quot;<br>
+<br>
+# Mike Gilbert &lt;<a href="mailto:floppym@gentoo.org" target="_blank" rel="noreferrer">floppym@gentoo.org</a>&gt; (2021-12-17)<br>
+# Prevent automagic use of 64-bit time_t.<br> +gl_cv_type_time_t_bits_macro=&quot;no&quot;<br>
-- <br>
2.34.1<br>


</blockquote></div></div></div>

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, Dec 18, 2021 at 10:35 AM James Le Cuirot <chewi@gentoo.org> wrote:

What will we do about other build systems? I worry they won't have a consistent approach for all projects.

We will have to deal with them as we discover them. I don't see a
magic solution for everything.

I suppose we could add a new profile var (eg. TIME_BITS) that ebuild maintainers could reference to control this for non-autoconf/gnulib
build systems.

Also, if some common build system like meson adds automagic support,
we could override that in meson.eclass.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Fri, 2021-12-17 at 09:41 -0500, Mike Gilbert wrote:

This is intended to prevent packages from automatically switching to
64-bit time_t on 32-bit ABIs. Making this switch in an uncontrolled
manner will lead to inconsistent library ABIs that fail at runtime.

At a later time, we will introduce new profiles to enable 64-bit time_t distro-wide.

https://wiki.gentoo.org/wiki/Project:Toolchain/time64_migration

Bug: https://bugs.gentoo.org/828001
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
---
profiles/default/linux/make.defaults | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/profiles/default/linux/make.defaults b/profiles/default/linux/make.defaults
index 6ae7cf297cf..53ace7e229c 100644
--- a/profiles/default/linux/make.defaults
+++ b/profiles/default/linux/make.defaults
@@ -53,3 +53,7 @@ VIDEO_CARDS="dummy fbdev v4l"
# Note that adding LDFLAGS="-Wl,-O1 ${LDFLAGS}" breaks dev-util/boost-build
# because of whitespace.
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
+
+# Mike Gilbert <floppym@gentoo.org> (2021-12-17)
+# Prevent automagic use of 64-bit time_t.
+gl_cv_type_time_t_bits_macro="no"

What will we do about other build systems? I worry they won't have a
consistent approach for all projects.

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--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)