build-for-mac-os.sh, script to build ngspice under MacOS

Makefile.am

@@ -9,6 +9,7 @@ EXTRA_DIST = FAQ autogen.sh Stuarts_Poly_Notes  \
 		README.adms contrib \
 		doc examples m4 visualc @NOTXGRAPH@ \
 		xgraph/aclocal.m4 \
+		build-for-mac-os.sh \
 		cross-compile.sh cross-compile-shared.sh \
 		compile_min.sh .gitignore
 

build-for-mac-os.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+# MacOS build script for NGSPICE
+
+# Considering a MacOS 10.12 system, there are some prerequisites to be satisfied:
+# 1) Install an X11 system of your choice. XQuartz from SourceForge is fine: https://www.xquartz.org
+# 2) Install automake, autoconf, libtool and an updated version of bison by using the method you prefer.
+#    From sources, from 'brew' or from 'MacPorts' are the known ones and I prefer using MacPorts,
+#    available at this address: https://www.macports.org .
+#    You can install from a tarball or you can use the installer, which will also configure the PATH.
+#
+# Said that, the script is quite linear and simple.
+
+
+# Build
+
+./autogen.sh
+
+./configure \
+  --enable-xspice \
+  --enable-cider \
+  --enable-pss \
+  --disable-debug \
+  --prefix=/Applications/ngspice
+
+make
+make DESTDIR="$(pwd)/root-tree" install
+
+# Package
+pkgbuild \
+  --root "$(pwd)/root-tree" \
+  --identifier ngspice.pkg \
+  --install-location / \
+  ngspice.pkg