From b8216fe2fe1041de91147fbeb3321bd63f53aa20 Mon Sep 17 00:00:00 2001
From: rlar <rlar>
Date: Tue, 15 Dec 2015 20:32:09 +0100
Subject: [PATCH] cross-compile-shared.sh, a script to compile the mingw
 windows dll on gnu/linux

---
 cross-compile-shared.sh | 57 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 cross-compile-shared.sh

diff --git a/cross-compile-shared.sh b/cross-compile-shared.sh
new file mode 100644
index 000000000..724b79d8f
--- /dev/null
+++ b/cross-compile-shared.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# This script can be used to cross compile the ngspice shared library
+#   for windows on a linux machine.
+# The result is a zip file,
+#   which is intended to be unziped to c:\
+#
+# You can invoke this script with no argument,
+#   whereupon it will compile a 32 bit windows executable
+# or with argument "64"
+#   to compile a 64 bit windows executable
+#
+# On debian gnu/linux you will need package `mingw-w64'
+#
+# (compile "time ./cross-compile-shared.sh")
+# (compile "time ./cross-compile-shared.sh 64")
+
+set -e
+
+if test "$1" = "64"; then
+    release="release-mingw-64"
+    dstzip="ngshared-mingw-64.zip"
+    host="x86_64-w64-mingw32"
+    dst="C:/Spice64"
+else
+    release="release-mingw-32"
+    dstzip="ngshared-mingw-32.zip"
+    host="i686-w64-mingw32"
+    dst="C:/Spice"
+fi
+
+./autogen.sh
+
+rm -rf "./$release"
+mkdir -p "./$release"
+
+(
+    # Hack around a problem of autoconf when cross compiling.
+    # This will force "configure" to believe we have a proper "malloc"
+    export ac_cv_func_malloc_0_nonnull=yes
+    export ac_cv_func_realloc_0_nonnull=yes
+
+    cd "./$release" && \
+        ../configure \
+            --build=$(../config.guess) \
+            --host="$host" \
+            --prefix="$dst" \
+            --exec-prefix="$dst" \
+            --with-ngshared --enable-xspice --enable-cider --disable-debug
+)
+
+make -C "./$release" -k -j6
+make -C "./$release" -k -j6 DESTDIR="$(pwd)/$release/" install
+
+( cd "./$release/C:/" && zip -r - . ) > "./$release/$dstzip"
+
+echo "unzip this ./$release/$dstzip to the destination directory c:\\"