The varargs implementation in Ruby 3.2 is not compatible with gnu23. Ruby
3.1 is in security maintenance mode upstream so it is unlikely that the
fixes from Ruby 3.2 will be backported. Ruby 3.1 is EOL in March 2025
and will be removed from Gentoo around that time.

Signed-off-by: Hans de Graaff <graaff@gentoo.org>
---
eclass/ruby-fakegem.eclass | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/eclass/ruby-fakegem.eclass b/eclass/ruby-fakegem.eclass
index eb6257a50cf9..fc78428be714 100644
--- a/eclass/ruby-fakegem.eclass
+++ b/eclass/ruby-fakegem.eclass
@@ -23,6 +23,8 @@ case ${EAPI} in
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac

+# flag-o-matic is only required for ruby31 support.
+inherit flag-o-matic
inherit ruby-ng

# @ECLASS_VARIABLE: RUBY_FAKEGEM_NAME
@@ -424,6 +426,16 @@ EOF
each_fakegem_configure() {
debug-print-function ${FUNCNAME} "$@"

+ # Ruby 3.1 has a varargs implementation that is not compatible with
+ # gnu23. Ruby 3.1 is EOL in March 2025 and will be removed shortly
+ # after that.
+ case ${RUBY} in
+ *ruby31)
+ append-flags -std=gnu17
+ filter-flags -std=gnu23
+ ;;
+ esac
+
tc-export PKG_CONFIG
for extension in "${RUBY_FAKEGEM_EXTENSIONS[@]}" ; do
CC=$(tc-getCC) ${RUBY} --disable=did_you_mean -C ${extension%/*} ${ext

Hans de Graaff <graaff@gentoo.org> writes:

The varargs implementation in Ruby 3.2 is not compatible with gnu23. Ruby
3.1 is in security maintenance mode upstream so it is unlikely that the
fixes from Ruby 3.2 will be backported. Ruby 3.1 is EOL in March 2025
and will be removed from Gentoo around that time.

LGTM if you've confirmed it fixes an extension build. Add a Closes
tag for https://bugs.gentoo.org/943988?

Signed-off-by: Hans de Graaff <graaff@gentoo.org>
---
eclass/ruby-fakegem.eclass | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/eclass/ruby-fakegem.eclass b/eclass/ruby-fakegem.eclass
index eb6257a50cf9..fc78428be714 100644
--- a/eclass/ruby-fakegem.eclass
+++ b/eclass/ruby-fakegem.eclass
@@ -23,6 +23,8 @@ case ${EAPI} in
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac

+# flag-o-matic is only required for ruby31 support.
+inherit flag-o-matic
inherit ruby-ng

# @ECLASS_VARIABLE: RUBY_FAKEGEM_NAME
@@ -424,6 +426,16 @@ EOF
each_fakegem_configure() {
debug-print-function ${FUNCNAME} "$@"

+ # Ruby 3.1 has a varargs implementation that is not compatible with
+ # gnu23. Ruby 3.1 is EOL in March 2025 and will be removed shortly
+ # after that.
+ case ${RUBY} in
+ *ruby31)
+ append-flags -std=gnu17
+ filter-flags -std=gnu23
+ ;;
+ esac
+
tc-export PKG_CONFIG
for extension in "${RUBY_FAKEGEM_EXTENSIONS[@]}" ; do
CC=$(tc-getCC) ${RUBY} --disable=did_you_mean -C ${extension%/*} ${extension##*/} --with-cflags="${CFLAGS}" --with-ldflags="${LDFLAGS}" ${RUBY_FAKEGEM_EXTENSION_OPTIONS} || die

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