cross/systemd-boot-x86: fix build without libintl

Fix that the build aborts with:
  Checking for function "dgettext" : NO
  meson.build:1029:21: ERROR: C shared or static library 'intl' not found

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7604>

cross/systemd-boot-x86/0001-meson-disable-libintl-check-if-pam-is-disabled.patch

@@ -0,0 +1,33 @@
+From abcc28985f5ab3b50c3ed85abee5e7f8bbd0889e Mon Sep 17 00:00:00 2001
+From: Oliver Smith <ollieparanoid@postmarketos.org>
+Date: Sun, 21 Dec 2025 17:04:26 +0100
+Subject: [PATCH] meson: disable libintl check if pam is disabled
+
+Disable the libintl check when building without the pam feature, so e.g.
+systemd-boot can be (cross) compiled without having the foreign arch
+libintl installed on a musl platform.
+---
+ meson.build | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index bcf1ff2df5..c7088f3d9c 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1021,11 +1021,10 @@ libdl = cc.find_library('dl')
+ 
+ # On some distributions that use musl (e.g. Alpine), libintl.h may be provided by gettext rather than musl.
+ # In that case, we need to explicitly link with libintl.so.
+-if cc.has_function('dgettext',
++libintl = []
++if get_option('pam').enabled() and not cc.has_function('dgettext',
+                    prefix : '''#include <libintl.h>''',
+                    args : '-D_GNU_SOURCE')
+-        libintl = []
+-else
+         libintl = cc.find_library('intl')
+         if not cc.has_function('dgettext',
+                                prefix : '''#include <libintl.h>''',
+-- 
+2.52.0
+

cross/systemd-boot-x86/APKBUILD

@@ -16,13 +16,13 @@ makedepends="
 	libcap-dev
 	meson
 	musl-dev-x86
-	musl-libintl
 	py3-elftools
 	py3-jinja2
 	util-linux-dev
 "
 source="
 	systemd-$pkgver.tar.gz::https://github.com/systemd/systemd/archive/refs/tags/v$pkgver.tar.gz
+	0001-meson-disable-libintl-check-if-pam-is-disabled.patch
 	cross-x86.meson
 	"
 # check: no tests
@@ -119,5 +119,6 @@ efistub() {
 
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+8ecb5e25c0d8b01c406fa3084b0910d517cabbf12894958b4d3d77462cb0924f0a52fe2bf1aa39af29b16fd78fe080a6a99daa18015c6059fb2e52c971d83ba9  0001-meson-disable-libintl-check-if-pam-is-disabled.patch
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