From 192d56c3fb61c43a3a5c3189a2a194a90e7bb3b4 Mon Sep 17 00:00:00 2001
From: Jaakko Keränen <jaakko.keranen@iki.fi>
Date: Tue, 5 Jan 2021 08:54:31 +0200
Subject: Embed: Use a shell script for bincat

Todo: Needs testing if this is portable enough. Should be pretty POSIX, though.
---
 res/Embed.cmake |  9 ++++++++-
 res/bincat.sh   | 22 ++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100755 res/bincat.sh

diff --git a/res/Embed.cmake b/res/Embed.cmake
index bab06347..1a971cc1 100644
--- a/res/Embed.cmake
+++ b/res/Embed.cmake
@@ -3,9 +3,16 @@
 # License: BSD 2-Clause
 
 option (ENABLE_RESOURCE_EMBED "Embed resources inside the executable" OFF)
+option (ENABLE_BINCAT_SH "Prepare resource files using the 'bincat.sh' shell script" ON)
+
+if (ENABLE_BINCAT_SH OR CMAKE_CROSSCOMPILING)
+    set (embed_use_bincat_sh YES)
+endif ()
 
 # Build "bincat" for concatenating files.
-if (NOT ENABLE_RESOURCE_EMBED)
+if (embed_use_bincat_sh)
+    set (BINCAT_COMMAND ${CMAKE_SOURCE_DIR}/res/bincat.sh)
+elseif (NOT ENABLE_RESOURCE_EMBED)
     message (STATUS "Compiling bincat for merging resource files...")
     set (_catDir ${CMAKE_BINARY_DIR}/res)
     execute_process (COMMAND ${CMAKE_COMMAND} -E make_directory ${_catDir})
diff --git a/res/bincat.sh b/res/bincat.sh
new file mode 100755
index 00000000..46483998
--- /dev/null
+++ b/res/bincat.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+# Binary Resource Concatenator
+# Copyright: 2021 Jaakko Keränen <jaakko.keranen@iki.fi>
+# License: BSD 2-Clause
+
+OUTPUT=--
+SIZES=""
+for fn in $*; do
+    if [ "$OUTPUT" == "--" ]; then        
+        OUTPUT=$fn
+        rm -f ${OUTPUT}
+    else
+        vals=(`/bin/ls -l $fn`)
+        if [ "$SIZES" == "" ]; then
+            SIZES=${vals[4]}
+        else
+            SIZES=$SIZES\;${vals[4]}
+        fi
+        cat ${fn} >> ${OUTPUT}
+    fi
+done
+echo $SIZES
-- 
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