Update for ngspice-34
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Holger Vogt
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FAQ
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FAQ
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Ngspice F.A.Q.Version 2.5 (ngspice-33 release)
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Ngspice F.A.Q.Version 2.6 (ngspice-34 release)
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Maintained by Holger Vogt
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Last update: 04-27-2020
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Last update: 01-03-2021
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This document contains the Frequently Asked Questions (and Answers)
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for ngspice project.
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@ -249,41 +249,41 @@
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The latest version released is:
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* ngspice-33 (released on 18/10/2020)
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* ngspice-34 (released on 10/01/2021)
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2.2. What are the latest features in the current release?
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- New features:
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+ try first storing the temporary file in user directory,
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only then in current directory.
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+ Add adding the ngspice icon to the MINGW executable.
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+ Do not print tansient initial conditions, if uic is selected.
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+ Enable node names with special characters like '/'.
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+ Do not print "Units" on a graph, if unknown type or settype notype is given.
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+ Unify batch mode and control mode raw file output.
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+ Make PPerror message more verbose.
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+ Make the pwl parameter r adjustable by .param.
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+ Enable flags xdelta, ydelta for 'gnuplot' command.
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+ Enable special characters for cpl model names and parameters.
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+ New command 'cutout': Cut out part of each vector of the current tran plot
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and copy into a new plot
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+ Compatibility switches KiCad 'ki', and Spectre 'spe'
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+ Remove vceo= and icrating= from bjt model cards.
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+ The tests of cmaths function will be done only on request.
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+ Add alternative temperature model for certain jfet parameters.
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+ Add BJT Kull Quasi-Saturation model.
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+ Improve self heating tempaerature handling in VDMOS model.
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+ Use W/nf for selecting binning model.
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+ Add wnflag as an instance parameter.
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+ Add PSPICE compatible ISWITCH.
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+ Add a limit capability to the code model aswitch.
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+ Add a new code model pswitch.
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+ Many conde updates not visible to the user, but enhancing stability
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+ Improved VBIC model
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+ Get the vector type automatically, if db, ph, cph are applied.
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+ Enable finding 'spinit' if its path contains spaces.
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+ Increase buffer size for command 'listing' to 4096 bytes.
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+ Add compatibility modes for EAGLE (ea) and Spectre (spe).
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+ Add parameter 'plain' to 'plot' command.
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+ Add variables 'plainplot', 'plainwrite', 'plainlet'
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+ Add RF bipolar model HICUM 2.4 to the ngspice C sources.
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+ Add charge formulation for non-linear capacitors.
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+ Remove outdated code from contrib and unsupported directories.
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+ When installing ngspice executable, do not install the headers.
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+ Add support for tc1, tc2, and m for behavioral resistors,
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which use the B source internally.
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+ Add supporting E_constant Vconst 0 TABLE {Max(V(DP)-V(GN),0)}=((20,120)).
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+ Remove the XSPICE limitation of the current source flag "current".
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+ Remove the XSPICE dependency of the phase parameter for the
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independent current source.
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+ Drastically reduce the memory requirements if there is a PDK with
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a lot of binning models (e.g. the SkyWater PDK).
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+ Update to admst: Enhance the Verilog A compatibility.
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+ Add most recent PSP102, Mextram504, BSIMBULK, and BSIMCMG models
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to the ngspice adms sources.
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+ Model checking for BSIM4.5 will only write to file if an excursion
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is detected (still to be added to the other BSIM models)
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+ Many code updates not visible to the user, but enhancing stability
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and efficiency
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- Bug fixes:
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+ many bugs fixed and code improvements (see bugs 484 and up)
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+ many bugs fixed and code improvements (see bugs 523 and up)
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+ memory leaks removed
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@ -375,7 +375,7 @@
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4.4. Disclaimer and Copyright
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Copyright: Holger Vogt, 2020
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Copyright: Holger Vogt, 2021
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License: Creative Commons Attribution Share-Alike (CC-BY-SA) v4.0.
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This document is provided as is. The information in it is not
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warranted to be correct: you use it at your own risk.
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85
INSTALL
85
INSTALL
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@ -5,13 +5,12 @@ Table of contents
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1 Ngspice installation (LINUX)
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1.1 Prerequisites
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1.2 Install from tarball (e.g. ngspice-31.tar.gz)
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1.2 Install from tarball (e.g. ngspice-34.tar.gz)
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1.3 Install from git repository
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1.4 Advanced Install
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1.4.1 Most useful options
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1.4.2 Options Specific to Enable Ngspice as a shared library
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1.4.3 Options Specific to Using Ngspice
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1.4.4 Options Useful for Debugging Ngspice
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1.4.3 Options Useful for Debugging Ngspice
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2 Compilers and Options
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3 Compiling For Multiple Architectures
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4 Installation Names
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@ -21,7 +20,7 @@ Table of contents
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8 Operation Controls
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9 NGSPICE COMPILATION UNDER WINDOWS OS
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9.1 How to make ngspice with MINGW and MSYS
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9.2 make ngspice with MS Visual Studio 2015/2017
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9.2 make ngspice with MS Visual Studio 2019
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9.3 make ngspice with pure CYGWIN
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9.4 ngspice console app with MINGW or CYGWIN
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9.5 cross compiling ngspice for Windows from LINUX
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@ -40,10 +39,12 @@ This file describes the procedures to install ngspice from sources.
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Ngspice is developed on GNU/Linux with gcc and GNU make.
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The following software must be installed in your system to compile ngspice:
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bison, flex, and X11 headers and libs.
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bison, flex, X11 headers and libs, Xaw, Xmu, Xext, Xft, FontConfig,
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Xrender, and freetype headers (e.g. libX11-devel) and libs (e.g. libX11-6),
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and readline.
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If you want to compile the source from the git repository you need
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additional software: autoconf, automake, libtool, texinfo, readline.
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additional software: autoconf, automake, libtool.
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The following software may be needed when enabling additional features:
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editline, tcl/tk, adms
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@ -53,14 +54,14 @@ This file describes the procedures to install ngspice from sources.
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information on ngspice and its usage.
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1.2 Install from tarball (e.g. ngspice-31.tar.gz)
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1.2 Install from tarball (e.g. ngspice-34.tar.gz)
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This covers installation from a release distribution (for example
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ngspice-31.tar.gz, the so called tar ball).
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ngspice-34.tar.gz, the so called tar ball).
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After downloading the tar ball to a local directory unpack it using:
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$ tar -zxvf ngspice-31.tar.gz
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$ tar -zxvf ngspice-34.tar.gz
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Now change directories in to the top-level source directory (where this
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INSTALL file can be found).
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@ -136,6 +137,8 @@ This file describes the procedures to install ngspice from sources.
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$ make 2>&1 | tee make.log
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$ sudo make install
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A bash script compile_linux.sh is available including all useful options.
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If a problem is found with the build process, please submit a report to
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the ngspice development team. Please provide information about your system
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and any ./configure arguments you are using, together with any error
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@ -214,62 +217,12 @@ This file describes the procedures to install ngspice from sources.
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"tclspice" is compiled and installed instead of
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plain ngspice.
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1.4.3 Options Specific to Using Ngspice
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Most of the options now following are not well maintained, are not tested or even maybe
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obsolete and dangerous.
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--enable-capbypass
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Bypass calculation of cbd/cbs in the mosfets if the vbs/vbd
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voltages are unchanged.
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--enable-cluster
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Clustering code for distributed simulation. This is a
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contribution never tested. This code comes from TCLspice
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implementation and is implemented for transient analysis only.
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--enable-expdevices
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Enable experimental devices. This option is used by developers
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to mask devices under development. Almost useless for users.
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--enable-experimental
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define EXPERIMENTAL_CODE to mark experimental parts the code
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(currently not used)
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--enable-help
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Force building nghelp. This is deprecated.
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--enable-ndev
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Enable NDEV interface, (experimental, needs updating)
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A TCP/IP interface to external device simulator such as GSS.
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For more information, please visit the homepage of GSS at
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http://gss-tcad.sourceforge.net
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--enable-newpred
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Enable the NEWPRED symbol in the code.
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--enable-newtrunc
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Enable the newtrunc option
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--enable-nodelimiting
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Experimental damping scheme
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--enable-nobypass
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Don't bypass recalculations of slowly changing variables
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--enable-predictor
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Enable a predictor method for convergence
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--enable-sense2
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Use spice2 sensitivity analysis
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--with-editline=yes
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Enables the use of the BSD editline library (libedit).
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See http://www.thrysoee.dk/editline/
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1.4.4 Options Useful for Debugging Ngspice
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1.4.3 Options Useful for Debugging Ngspice
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--enable-ansi
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Configure will try to find an option for your compiler so that
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@ -323,6 +276,9 @@ Most of the options now following are not well maintained, are not tested or eve
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Or on systems that have the `env' program, you can do it like this:
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env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
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On CentOS with older GCC it might be necessary to add -std=c99
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to the CFLAGS in ./compile_linux.sh .
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3 Compiling For Multiple Architectures
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====================================
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automake, libtool, FLEX and BISON, all available with pacman in MSYSS2).
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Some links are given below which describe the procedures.
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Installing from the tarball, e.g. ngspice-32.tar.gz, is now simple: After
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expanding, you may just run ./compile_min.sh from the ngspice-32 directory.
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Installing from the tarball, e.g. ngspice-34.tar.gz, is simple: After
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expanding, you may just run ./compile_min.sh from the ngspice directory.
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The default installation location of ngspice is the Windows path
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C:\spice. The install path can be altered by passing --prefix=NEWPATH
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the ngspice website), if you don't want to use the script named above
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is as follows:
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$ cd ngspice-32
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$ cd ngspice
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$ mkdir release
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$ cd release
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$ ../configure --with-wingui ...and other options
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./configure --enable-adms --enable-cider --enable-xspice --enable-openmp --enable-pss --with-readline=yes --enable-debug=no
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6. Compile NGSPICE invoking "make -j4"
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7. Install NGSPICE invoking "make install" or "sudo make install"
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A compile script compile_macos.sh contains all necessary steps.
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