From cd84427a1b10deec9dfe745cf26e75d3cf57f49d Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <mjo@gentoo.org>
Date: Tue, 27 May 2025 18:38:11 -0400
Subject: [PATCH] dev-libs/libgcrypt: filter LTO on riscv

There is a known issue in GCC causing build failures in this package on
riscv when LTO is enabled. This commit temporary disables LTO on riscv.

Closes: https://bugs.gentoo.org/956605
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>
---
 dev-libs/libgcrypt/libgcrypt-1.11.1.ebuild | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dev-libs/libgcrypt/libgcrypt-1.11.1.ebuild b/dev-libs/libgcrypt/libgcrypt-1.11.1.ebuild
index 54beede43cf11..5b9e38f6da096 100644
--- a/dev-libs/libgcrypt/libgcrypt-1.11.1.ebuild
+++ b/dev-libs/libgcrypt/libgcrypt-1.11.1.ebuild
@@ -89,6 +89,13 @@ src_configure() {
 	# -O0 already. Don't risk it with UB.
 	strip-flags
 
+	# Temporary workaround for a build failure (known gcc issue):
+	#
+	#  * https://bugs.gentoo.org/956605
+	#  * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110812
+	#
+	use riscv && filter-lto
+
 	# Hardcodes the path to FGREP in libgcrypt-config
 	export ac_cv_path_SED="sed"
 	export ac_cv_path_EGREP="grep -E"