--- /dev/null
+From 7fec3ac22efb86fce90a9edc5696e16ee88a65c7 Mon Sep 17 00:00:00 2001
+From: NIIBE Yutaka <gniibe@fsij.org>
+Date: Wed, 24 Oct 2018 14:29:45 +0900
+Subject: [PATCH] build: Don't default to underscore=yes for cross-build.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+* acinclude.m4: Don't set ac_cv_sys_symbol_underscore
+for cross build.
+
+--
+
+It made sense in the past when cross compile were basically for a.out
+system, but nowadays, it's better not to assume that.
+
+Fetched from: 0f4545b441b6fbdd6e9c4e95f5f2a367483e78ad
+
+Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
+Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
+---
+ acinclude.m4 | 8 ++------
+ 1 file changed, 2 insertions(+), 6 deletions(-)
+
+diff --git a/acinclude.m4 b/acinclude.m4
+index fc208c53..6f7789d0 100644
+--- a/acinclude.m4
++++ b/acinclude.m4
+@@ -111,14 +111,10 @@ case "${host}" in
+ ac_cv_sys_symbol_underscore=yes
+ ;;
+ *)
+- if test "$cross_compiling" = yes; then
+- if test "x$ac_cv_sys_symbol_underscore" = x ; then
+- ac_cv_sys_symbol_underscore=yes
+- fi
+- else
++ if test "$cross_compiling" != yes; then
+ tmp_do_check="yes"
+ fi
+- ;;
++ ;;
+ esac
+ if test "$tmp_do_check" = "yes"; then
+ AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
+--
+2.22.0
+
+++ /dev/null
-diff --git a/configure b/configure
-index 70a6d50..8f55d95 100755
---- a/configure
-+++ b/configure
-@@ -22306,14 +22306,15 @@ case "${host}" in
- i386-emx-os2 | i345686-pc-os2*emx | i386-pc-msdosdjgpp)
- ac_cv_sys_symbol_underscore=yes
- ;;
-- *)
-- if test "$cross_compiling" = yes; then
-- if test "x$ac_cv_sys_symbol_underscore" = x ; then
-- ac_cv_sys_symbol_underscore=yes
-+ *)if test -z "$ac_cv_sys_symbol_underscore";then
-+ if test "$cross_compiling" = yes; then
-+ if test "x$ac_cv_sys_symbol_underscore" = x ; then
-+ ac_cv_sys_symbol_underscore=yes
-+ fi
-+ else
-+ tmp_do_check="yes"
-+ fi
- fi
-- else
-- tmp_do_check="yes"
-- fi
- ;;
- esac
- if test "$tmp_do_check" = "yes"; then
LIBGCRYPT_DEPENDENCIES = libgpg-error
LIBGCRYPT_CONFIG_SCRIPTS = libgcrypt-config
-LIBGCRYPT_CONF_ENV = \
- ac_cv_sys_symbol_underscore=no
+# Patching acinclude.m4 in 0001
+LIBGCRYPT_AUTORECONF = YES
LIBGCRYPT_CONF_OPTS = \
--with-gpg-error-prefix=$(STAGING_DIR)/usr