From 6042dd28cfba1dc948b5d601052c8ecd1584cd91 Mon Sep 17 00:00:00 2001
From: Jamie McClymont <jamie@kwiius.com>
Date: Tue, 27 Jul 2021 20:07:06 +1200
Subject: [PATCH] libgpgerror: fix cross-compilation

Backporting a fix (merged upstream but no release cut) for shell quoting issues
---
 .../libraries/libgpg-error/default.nix        |   4 +
 .../fix-1.42-cross-compilation.patch          | 142 ++++++++++++++++++
 2 files changed, 146 insertions(+)
 create mode 100644 pkgs/development/libraries/libgpg-error/fix-1.42-cross-compilation.patch

diff --git a/pkgs/development/libraries/libgpg-error/default.nix b/pkgs/development/libraries/libgpg-error/default.nix
index 7490995e6611..e46e25593365 100644
--- a/pkgs/development/libraries/libgpg-error/default.nix
+++ b/pkgs/development/libraries/libgpg-error/default.nix
@@ -24,6 +24,10 @@ in stdenv.mkDerivation (rec {
     sha256 = "sha256-/AfnD2xhX4xPWQqON6m43S4soelAj45gRZxnRSuSXiM=";
   };
 
+  # 1.42 breaks (some?) cross-compilation (e.g. x86_64 -> aarch64).
+  # Backporting this fix (merged in upstream master but no release cut) by David Michael <fedora.dm0@gmail.com> https://dev.gnupg.org/rE33593864cd54143db594c4237bba41e14179061c
+  patches = [ ./fix-1.42-cross-compilation.patch ];
+
   postPatch = ''
     sed '/BUILD_TIMESTAMP=/s/=.*/=1970-01-01T00:01+0000/' -i ./configure
   '' + lib.optionalString (stdenv.hostPlatform.isAarch32 && stdenv.buildPlatform != stdenv.hostPlatform) ''
diff --git a/pkgs/development/libraries/libgpg-error/fix-1.42-cross-compilation.patch b/pkgs/development/libraries/libgpg-error/fix-1.42-cross-compilation.patch
new file mode 100644
index 000000000000..6c3099f72144
--- /dev/null
+++ b/pkgs/development/libraries/libgpg-error/fix-1.42-cross-compilation.patch
@@ -0,0 +1,142 @@
+diff --git a/src/gen-lock-obj.sh b/src/gen-lock-obj.sh
+index a710f0c..258eec6 100755
+--- a/src/gen-lock-obj.sh
++++ b/src/gen-lock-obj.sh
+@@ -1,136 +1,136 @@
+ #! /bin/sh
+ #
+ # gen-lock-obj.sh - Build tool to construct the lock object.
+ #
+ # Copyright (C) 2020, 2021  g10 Code GmbH
+ #
+ # This file is part of libgpg-error.
+ #
+ # libgpg-error is free software; you can redistribute it and/or
+ # modify it under the terms of the GNU Lesser General Public License
+ # as published by the Free Software Foundation; either version 2.1 of
+ # the License, or (at your option) any later version.
+ #
+ # libgpg-error is distributed in the hope that it will be useful, but
+ # WITHOUT ANY WARRANTY; without even the implied warranty of
+ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ # Lesser General Public License for more details.
+ #
+ # You should have received a copy of the GNU Lesser General Public
+ # License along with this program; if not, see <https://www.gnu.org/licenses/>.
+ #
+ 
+ #
+ # Following variables should be defined to invoke this script
+ #
+ #   CC
+ #   OBJDUMP
+ #   AWK
+ #   ac_ext
+ #   ac_object
+ #   host
+ #   LOCK_ABI_VERSION
+ #
+ # An example:
+ #
+ # LOCK_ABI_VERSION=1 host=x86_64-pc-linux-gnu host_alias=x86_64-linux-gnu \
+ #     CC=$host_alias-gcc OBJDUMP=$host_alias-objdump ac_ext=c ac_objext=o \
+ #     AWK=gawk ./gen-lock-obj.sh
+ #
+ 
+-if test -n `echo -n`; then
++if test -n "`echo -n`"; then
+     ECHO_C='\c'
+     ECHO_N=''
+ else
+     ECHO_C=''
+     ECHO_N='-n'
+ fi
+ 
+ if test "$1" = --disable-threads; then
+     cat <<EOF
+ ## lock-obj-pub.$host.h - NO LOCK SUPPORT
+ ## File created by gen-lock-obj.sh - DO NOT EDIT
+ ## To be included by mkheader into gpg-error.h
+ 
+ /* Dummy object - no locking available.  */
+ typedef struct
+ {
+   long _vers;
+ } gpgrt_lock_t;
+ 
+ #define GPGRT_LOCK_INITIALIZER {-1}
+ EOF
+ else
+ AWK_VERSION_OUTPUT=$($AWK 'BEGIN { print PROCINFO["version"] }')
+ if test -n "$AWK_VERSION_OUTPUT"; then
+     # It's GNU awk, which supports PROCINFO.
+     AWK_OPTION=--non-decimal-data
+ fi
+ 
+ cat <<'EOF' >conftest.$ac_ext
+ #include <pthread.h>
+ pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
+ EOF
+ 
+ if $CC -c conftest.$ac_ext; then :
+   ac_mtx_size=$($OBJDUMP -j .bss -t conftest.$ac_objext \
+          | $AWK $AWK_OPTION '
+ /mtx$/ { mtx_size = int("0x" $5) }
+ END { print mtx_size }')
+ else
+     echo "Can't determine mutex size"
+     exit 1
+ fi
+ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ 
+ cat <<EOF
+ ## lock-obj-pub.$host.h
+ ## File created by gen-lock-obj.sh - DO NOT EDIT
+ ## To be included by mkheader into gpg-error.h
+ 
+ typedef struct
+ {
+   long _vers;
+   union {
+     volatile char _priv[$ac_mtx_size];
+     long _x_align;
+     long *_xp_align;
+   } u;
+ } gpgrt_lock_t;
+ 
+ EOF
+ 
+ # FIXME: Support different alignment conditions of:
+ #
+ #     USE_16BYTE_ALIGNMENT
+ #     USE_DOUBLE_FOR_ALIGNMENT
+ #     USE_LONG_DOUBLE_FOR_ALIGNMENT
+ #
+ 
+ echo ${ECHO_N} "#define GPGRT_LOCK_INITIALIZER {$LOCK_ABI_VERSION,{{${ECHO_C}"
+ 
+ i=0
+ while test "$i" -lt $ac_mtx_size; do
+     if test "$i" -ne 0 -a "$(( $i % 8 ))" -eq 0; then
+         echo ' \'
+         echo ${ECHO_N} "                                    ${ECHO_C}"
+     fi
+     echo ${ECHO_N} "0${ECHO_C}"
+     if test "$i" -lt $(($ac_mtx_size - 1)); then
+         echo ${ECHO_N} ",${ECHO_C}"
+     fi
+     i=$(( i + 1 ))
+ done
+ fi
+ 
+ cat <<'EOF'
+ }}}
+ ##
+ ## Local Variables:
+ ## mode: c
+ ## buffer-read-only: t
+ ## End:
+ ##
+ EOF
+ 
+ exit 0