new file mode 100644
@@ -0,0 +1,76 @@
+From 3ba2c55dfdc8ff20de369f07f6c57d08718d3add Mon Sep 17 00:00:00 2001
+From: Adam Sampson <ats@offog.org>
+Date: Sun, 2 Jul 2023 15:22:49 +0100
+Subject: [PATCH] Check for GNU strerror_r using the compiler only
+
+The new test that was added to distinguish GNU/XSI strerror_r ran a
+compiled program, which doesn't work when cross-compiling. The only
+difference at compile time is that the GNU version returns char * and
+the XSI version returns int, so detect it by compiling a program that
+dereferences the return value.
+
+Signed-off-by: Adam Sampson <ats@offog.org>
+
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+---
+ configure.ac | 19 +++++++------------
+ meson.build | 10 +++++-----
+ 2 files changed, 12 insertions(+), 17 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 40f5a583..29890622 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -146,19 +146,14 @@ if test "$os_unix" = "yes"; then
+
+ AC_CHECK_FUNC(
+ [strerror_r],
+- [AC_RUN_IFELSE(
+- [AC_LANG_SOURCE([[
+- #include <errno.h>
+- #include <string.h>
+-
+- int main (void)
+- {
+- char buf[32];
+- return strerror_r (EINVAL, buf, 32);
+- }
+- ]])],
+- [AC_DEFINE([HAVE_XSI_STRERROR_R], 1, [Whether XSI-compliant strerror_r() is available])],
++ [AC_COMPILE_IFELSE(
++ [AC_LANG_PROGRAM([[#include <errno.h>
++ #include <string.h>]],
++ [[/* GNU strerror_r returns char *, XSI returns int */
++ char buf[32];
++ return *strerror_r (EINVAL, buf, 32);]])],
+ [AC_DEFINE([HAVE_GNU_STRERROR_R], 1, [Whether GNU-specific strerror_r() is available])],
++ [AC_DEFINE([HAVE_XSI_STRERROR_R], 1, [Whether XSI-compliant strerror_r() is available])],
+ [])],
+ [])
+
+diff --git a/meson.build b/meson.build
+index 0f8c8da0..4cc3f89a 100644
+--- a/meson.build
++++ b/meson.build
+@@ -306,15 +306,15 @@ if cc.has_function('strerror_r', prefix: '#include <string.h>')
+
+ int main (void)
+ {
++ /* GNU strerror_r returns char *, XSI returns int */
+ char buf[32];
+- return strerror_r (EINVAL, buf, 32);
++ return *strerror_r (EINVAL, buf, 32);
+ }
+ '''
+- strerror_r_check = cc.run(strerror_r_code, name : 'strerror_r check')
+- if strerror_r_check.returncode() == 0
+- conf.set('HAVE_XSI_STRERROR_R', 1)
+- else
++ if cc.compiles(strerror_r_code, name : 'GNU strerror_r check')
+ conf.set('HAVE_GNU_STRERROR_R', 1)
++ else
++ conf.set('HAVE_XSI_STRERROR_R', 1)
+ endif
+ endif
+
new file mode 100644
@@ -0,0 +1,30 @@
+From 7aa6251bf4ce36d027d53c9c96bb05f90ef7eb5b Mon Sep 17 00:00:00 2001
+From: Adam Sampson <ats@offog.org>
+Date: Sun, 2 Jul 2023 15:44:06 +0100
+Subject: [PATCH] Define _GNU_SOURCE when testing for strerror_r
+
+The Meson check for GNU/XSI strerror_r didn't inherit the project
+options that include _GNU_SOURCE (unlike the autoconf version), so the
+result didn't match how the code that uses it will be compiled. Add
+_GNU_SOURCE explicitly as with the following checks.
+
+Signed-off-by: Adam Sampson <ats@offog.org>
+
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+---
+ meson.build | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/meson.build b/meson.build
+index 4cc3f89a..9a72e148 100644
+--- a/meson.build
++++ b/meson.build
+@@ -301,6 +301,7 @@ endforeach
+
+ if cc.has_function('strerror_r', prefix: '#include <string.h>')
+ strerror_r_code = '''
++#define _GNU_SOURCE
+ #include <errno.h>
+ #include <string.h>
+
@@ -10,7 +10,9 @@ DEPENDS = "libtasn1 libtasn1-native libffi"
DEPENDS:append = "${@' glib-2.0' if d.getVar('GTKDOC_ENABLED') == 'True' else ''}"
-SRC_URI = "git://github.com/p11-glue/p11-kit;branch=master;protocol=https"
+SRC_URI = "git://github.com/p11-glue/p11-kit;branch=master;protocol=https \
+ file://strerror-1.patch \
+ file://strerror-2.patch"
SRCREV = "a8cce8bd8065bbf80bd47219f85f0cd9cf27dd0c"
S = "${WORKDIR}/git"