Magic Code Revision History

Table of Contents

Magic 8.3 Revisions
Magic 8.2 Revisions
Magic 8.1 Revisions
Magic 8.0 Revisions
Magic 7.5 Revisions
Magic 7.4 Revisions
Magic 7.3 Revisions
Magic 7.2 Revisions

Revision information on Magic version 8.3 (stable):

• posted: August 5, 2025 at 2:00am     version: 8.3     revision: 536
  Reverted a change made to "select area" earlier in the year, which changed the behavior from selecting subcells if they are unexpanded to selecting subcells regardless of the expansion state. The change was short-sighted and the implementation hard to use. There is a need, I think, for a selection method that effectively unexpands instances, selects everything, and re-expands afterward. But it's not clear if it is better to select all touching instances or instances inside the box area; maybe only interacting instances (instances with non-space content inside the box). Regardless, it needs more thought, and meanwhile, the original behavior works better.
  Added the keyword "COVER" to the list of keywords expected for a PIN entry in a DEF file when read by "def read". Previously, "PLACED" and "FIXED" were handled, but "COVER" was missed. Magic treats all three the same way.
  Also: path.c: CodeQL File{MayNot,Never}BeClosed.ql file-handle resource leaks
  Also: CodeQL FileMayNotBeClosed.ql flock.c may also leak 'fd' in error paths
  Also: Added a type cast in ext2spice/ext2hier.c to avoid having the compiler complain about a "const" variable passed to a routine not declaring "const".
  
• posted: August 2, 2025 at 2:00am     version: 8.3     revision: 535
  Corrected some basic paint code related to drawing over top non- Manhattan tiles. After splitting a non-Manhattan tile crossing a search area to paint, the routine was automatically merging tiles to the right. This is incorrect for tiles inside the search area, as it can cause the search algorithm to miss unvisited tiles whose origins are to the left of the split tile, resulting in part of the area not getting painted.
  readline/Makefile: clean fix to unwanted error message
  Also: appimage: allow git tags with annotation to match expected SHA for ChangeLog
  
• posted: July 30, 2025 at 2:00am     version: 8.3     revision: 534
  defs.mak.in: Add RMDIR MKDIR MV LN SED common tools
  defs.mak.in: ARFLAGS = cr (removed 'v')
  Also: defs.mak.in: replace backtick with $(shell ...)
  Also: defs.mak.in: Remove -I. from default compiler options
  Also: defs.mak.in: OBJS split into C_OBJS CXX_OBJS
  Also: defs.mak.in: DFLAGS_MAGICVERSION
  Also: configure: wrapper CFLAGS inherit if already set
  Also: readline/Makefile: move up before with no scheme
  Also: Makefile: exit 1 && libs: Makefile deps
  Also: Makefile: make depend (will now parallelize via -j)
  Also: Makefile: lookup VERSION local variable once
  Also: Makefile: database.h removal by toplevel Makefile
  Also: Makefile: whitespace only change
  Also: Makefile: various consistency matters
  Also: rules.mak: include ${DEPEND_FILE} only if the file exists
  Also: rules.mak: fix module Depend and build rules
  Also: MAKE_xxxxx: to skip building OBJs part of configure
  Also: scripts/configure: autoconf regen (2.69) MAKE_xxxxx generation
  Also: magic/Makefile: MAGIC_BUILDDATE and inherit values when possible
  Also: configure: --enable-assertions make this a user accessible config
  Also: configure: --enable-debug make this a user accessible config
  Also: configure.in: whitespace cleanup align --help columns
  Also: utils/magic_assert.h: separate assert.h and ASSERT
  Also: utils/magic_zlib.h: limit #include to files that need it
  Also: utils/magic_alloca.h: with autoconf AC_FUNC_ALLOCA
  Also: niceabort.c: include remove preC89 declarations
  Also: header file #endif guard trailer comment consistency
  Also: header file #ifndef guard presence consistency
  Also: header file #ifndef guard namespace consistency (global change)
  Also: header file #endif guard middle program once style consistency
  Also: makedbh.in _DATABASE_H => _MAGIC__DATABASE__DATABASE_H
  Also: utils/magsgtty.h: detect termio/ioctl headers
  Also: configure: autoconf regen (2.69) ALLOCA NDEBUG DEBUG
  Also: Makefile: toplevel 'make techs' target to process scmos during build
  Also: configure.in: AC_PROG_SED (looking for GNU sed)
  Also: configure: autoconf regen (2.69) AC_PROG_SED
  Also: configure.in: AC_PROG_PERL
  Also: configure: autoconf regen (2.69) AC_PATH_PROG(PERL,) AC_SUBST(PERL)
  Also: configure.in: AC_STRUCT_DIRENT_D_TYPE
  Also: configure: autoconf regen (2.69) AC_STRUCT_DIRENT_D_TYPE
  Also: defs.mak.in: restore autoconf LIBS functionality
  Also: configure: autoconf regen (2.69) LIBS
  Also: DBio.c: HAVE_STRUCT_DIRENT_D_TYPE direct->d_type
  Also: SunOS: FOPEN rename to magicFOPEN due to sys/file.h definition
  Also: Makefile: ln => ${LN}
  Also: Makefile: rm => ${RM}
  Also: Makefile: sed => ${SED}
  Also: INSTALL_MacOS.md: Update to install gnu-sed
  Also: GHA: main.yml: emit defs.mak into CI logging
  Also: GHA: main-macos.yml brew install gnu-sed
  Also: configure.in: AC_CHECK_HEADERS sys/ioctl_compat.h sgtty.h
  Also: configure: autoconf regen (2.69) AC_CHECK_HEADERS sys/ioctl_compat.h sgtty.h
  Also: autoconf: utilize HAVE_SYS_IOCTL_COMPAT_H HAVE_TERMIO_H
  Also: Makefile: check make depend is parallel
  Also: Makefile: removed errnous echo message for make.log
  Also: Makefile: cleanup targets: standard tcl
  Also: Makefile: allow 'modules' and 'libs' to build in parallel
  Also: Makefile: fix 'force' target to ensure serialization
  Also: Makefile: make -j ordering fix
  Also: Updated the version to go along with the merge of pull request #428 from Darryl Miles, which overhauled the Makefile and cleaned up a lot of long-standing minor issues.
  Also: appimage: GHA more debugging for fetch --tags issue
  
• posted: July 29, 2025 at 2:00am     version: 8.3     revision: 533
  Corrected an issue with "bloat-all ... [dist]" in which an attempt not to re-process processed tiles made an incorrect assumption, causing tiles not to be re-processed when the clip area changed, such that areas would be missed. It is not clear that in its corrected version, "bloat-all ... [dist]" is any more efficient than the original implementation of an incremental series of bloat + AND. At least the syntax in the tech file is much simplified.
  appimage: GHA action/checkout fetch-tags=true workaround
  Also: fix: add missing #include
  Also: ext2sim.c: fix syntax error, missing argument name
  Also: DBTechname.c: fix !MAGIC_WRAPPER incorrect use of TxPrintf() warning
  
• posted: July 28, 2025 at 2:00am     version: 8.3     revision: 532
  configure.in: AC_C_INLINE AC_C_RESTRICT
  configure: autoconf regen (2.69) AC_C_INLINE AC_C_RESTRICT
  Also: tile.h: TiFreeIf/TiFree1() API
  Also: DBtiles.c: DBFreePaintPlane() remove the TiFree() deferred assumption
  Also: TiJoin[XY]1() API introduction
  Also: tiles: Make TiFree() easier to inline for compiler
  Also: tile.h: move #include into tile.c
  Also: TiJoin[XY]1 API introduction at all call sites
  Also: tiles: Remove TiJoinFree() now that TiJoin[XY]1() exists and all use-cases utilize
  Also: include where necessary in files using API calls
  Also: configure.in: Add AC_HEADER_TIME
  Also: configure: autoconf regen (2.69) AC_HEADER_TIME
  Also: Use HAVE_SYS_TIME_H and TIME_WITH_SYS_TIME from autoconf where possible
  Also: CalmaRdpt.c: -Wall -O3 snprintf("polygon%5d")
  Also: CalmaRdpt.c: -Wall -O3 savedef used uninitialized
  Also: F42: fix for etext symbol glibc 2.29+
  Also: netlist.c: whitespace only cleanup
  Also: fix GrTextSizePtr API interface return type consistency
  Also: K&R magic/**
  Also: K&R net2ir/**
  Also: net2ir: use 'const' with 'rcsid'
  Also: ext2sim: Remove non-existent function fwd-decl
  Also: K&R ext2sim/*.c: bulk function implementation conversion
  Also: ext2sim: Ensure main() have return type and arguments
  Also: ext2sim: fixup prototypes for TxError() MainExit()
  Also: ext2sim: use 'const' with 'rcsid'
  Also: ext2sim.c: forward declaration prototypes
  Also: ext2sim: Makefile target for: finds sim2simp
  Also: ext2sim: use strict callback prototypes
  Also: ext2sim: constify APIs and local vars
  Also: sim2simp.c: constify file
  Also: finds.c: constify file
  Also: ext2sim.c: constify string globals
  Also: ext2sim.c: constify whatever the compiler let me
  Also: ext2sim.c: (ClientData) cast use PTR2CD()
  Also: ext2sim: gratuitous constification of localvars, struct members, prototypes
  Also: extraction: constify struct devMerge.next, devMergeList
  Also: ext2sim: whitespace only changes
  Also: ext2sim: cleanup unused localvars -Wunused-variable -Wunused-but-set-variable
  Also: K&R ext2spice: remove non-existent function prototypes
  Also: K&R ext2spice.h: conversion to ANSI
  Also: ext2spice.h: one line per declaration
  Also: ext2spice.h: move function prototype after arg type decls
  Also: K&R ext2spice/*.c: bulk function implementation conversion
  Also: ext2spice: use 'const' with 'rcsid'
  Also: ext2spice: Makefile use EXT2SPICE_MAIN for deprecated standalone
  Also: ext2spice: forward declaration arguments or removal
  Also: cif_templates: Fix Makefile race condition with objs directory creation
  Also: Updated the version number to go along with merges of pull requests from Darryl Miles and Torleif Skoar.
  Also: Reducing VERSION back to the previous value so that a mirror copy of the bad code won't be made to github in case the issue with stdbool isn't resolved by tonight.
  Also: Fixed an issue with a non-boolean variable in DBtiles.c being cast as "bool", causing issues with the proper/strict use of the "bool" type. Changed the version back so that it will update the github mirror tonight, since the current version appears to be working.
  Also: appimage: The AppImageTool changes their releases distribution point
  Also: appimage: use git show for hash of current checkout state
  Also: appimage: whitespace only cleanup
  Also: appimage: remove libfuse2 desktop-file-utils
  Also: appimage: GHA fetch-tags=true
  
• posted: July 27, 2025 at 2:00am     version: 8.3     revision: 531
  CIFParsePath() prototype change to simply return of created data
  tiles/tile.h: Remove unused inlines breaking older GCC
  Also: GHA: appimage7: Maintenance update
  Also: GHA: appimage7: appimage/* => appimage/7/* (relocate EL7)
  Also: GHA: appimage7: fixup relocated files
  Also: GHA: appimage8: Add support for EL8
  Also: GHA: appimage9: Add support for EL9
  Also: GHA: appimage10: Add support for EL10
  Also: rtrTravers.c: missing const
  Also: C23: CmdSubrs.c fixup deprecated isascii()
  Also: C23: use AC_HEADER_STDBOOL #include
  Also: configure: autoconf regen (2.69) AC_HEADER_STDBOOL
  Also: tclmagic.c: memleak Tcl ref counting over Eval memory leak
  Also: DBcellsrch.c: #ifdef ROUTE_MODULE around hook to update MZAttachHintPlanes()
  Also: configuration: #ifdef ROUTE_MODULE
  Also: configuration: #ifdef CIF_MODULE
  Also: configuration: #ifdef LEF_MODULE
  Also: textio/txCommands.c: add missing ifdef SCHEME_INTERPRETER
  Also: magic/main.c: add missing ifdef SCHEME_INTERPRETER
  Also: Updating the version number to go along with the merge of a bunch of pull requests (about half of those pending) from Darryl Miles.
  
• posted: June 20, 2025 at 2:00am     version: 8.3     revision: 530
  GHA: appimage.yml (move to ubuntu-latest)
  GHA: canary-matrix.yml: use set -o pipefail
  Also: GHA: canary-matrix.yml: remove sunseted ubuntu-20.04 runner
  Also: GHA: main.yml (move to ubuntu-22.04)
  Also: Updated the version to go along with pull request #406 from Darryl Miles (updates for github actions).
  
• posted: June 13, 2025 at 2:00am     version: 8.3     revision: 529
  Added a quick hack solution from Darryl Miles to prevent the database corruption discovered recently that was uncovered by a commit on Jan. 31 and is caused by DBMergeNMTiles0() using a freed tile (reported in github issue #404).
  
• posted: May 23, 2025 at 2:00am     version: 8.3     revision: 528
  Added some alternative key bindings to the keypad for "stretch" commands, because the keypad numerical values no longer work regardless of the setting of Num Lock. The keypad arrow keys alone implement "move", while Shift + keypad arrow keys implement "stretch".
  
• posted: May 17, 2025 at 2:00am     version: 8.3     revision: 527
  Corrected an error caused by extending the parsing of the FOREIGN keyword in LEF. FOREIGN may take an origin offset, but it is optional. The routine to check that there were no offset values in the statement incorrectly checked for a NULL token instead of a value ";" which would indicate an end-of-statement.
  
• posted: April 10, 2025 at 2:00am     version: 8.3     revision: 526
  Ti[GS]etClient() usage enforcement
  TiGetClient() excessive use hotspots
  Also: Plane[GS]etHint() added to encapsulate access to Plane->pl_hint
  Also: tiles: remove non-existent function prototype TiSrArea()
  Also: K&R tile.h: conversion to ANSI
  Also: tiles: constify data and API call arguments as appropriate
  Also: tiles: treat ti_client as pointer and use macros
  Also: tiles: pointer arithmetic with 'unsigned long' is too narrow for _WIN64
  Also: tiles: unclear why TileStoreFreeList is an exported global
  Also: tiles: use 'const' with 'rcsid'
  Also: bplane: constify BPEnumInit()
  Also: K&R: tile/*.c bulk function implementation conversion
  Also: tiles: reorder TileStoreFree()
  Also: tiles: simplify TileStoreFree() and TileStoreFreeList_end management
  Also: tiles: TileStoreFreeList_end removal
  Also: This attempts to remove the number of active lines of code, branches from the TiAlloc() and TiFree() code path.
  Also: tiles: TiPlaneRect const ripple
  Also: calma: TiPlaneRect const ripple
  Also: cif: TiPlaneRect const ripple
  Also: extract: DBSrCellPlaneArea() cb_database_srcellplanearea_t extContainsCellFunc
  Also: extract: DBSrCellPlaneArea() const Rect * arg2
  Also: extract: DBSrCellPlaneArea() cb_database_srcellplanearea_t extContainsCellFunc()
  Also: ext2spice: mergeAttr() fix, leak removal and restore original intention
  Also: ext2sim.c: remove unused mergeAttr()
  Also: configure.in: getrlimit setrlimit sys/resource.h
  Also: configure: autoconf regen (2.69) getrlimit setrlimit sys/resource.h
  Also: tclmagic.c: RLIMIT_NOFILE to 4096 on startup (only for TCL9 envs)
  Also: grMain.c select() usage fix and protect from higher numbered fd's
  Also: select() API usages add ASSERT() to validate fd number is in-range
  Also: txCommands.c txInputDevRec FD select() usage overhaul
  Also: txCommands.c TxGetInputEvent() rework main loop to iterate less
  Also: SimRsim.c: remove declaration SimGetReplyLine() as it is in sim.h
  Also: SimRsim.c: update with const API change to utils module
  Also: K&R sim.h: conversion to ANSI
  Also: K&R sim/*.c: bulk function implementation conversion
  Also: sim: constify various APIs
  Also: database.h.in constify various TileTypeBitMask* data usages
  Also: sim: use 'const' with 'sccsid'
  Also: sim: use pid_t where appropiate
  Also: sim: remove declaration for getenv()
  Also: sim: various cleanups (non existent funcs)
  Also: database: DBPrintUseId() K&R removal
  Also: database.h.in: dbcUnconnectFunc() add public prototype
  Also: database.h.in: dbSrConnectFunc()/dbSrConnectStartFunc() add public prototype
  Also: sim: DBSrPaintArea() cb_database_srpaintarea_t SimSelectFunc()
  Also: sim: DBCellSrArea() cb_database_cellsrarea_t SimCellTileSrFunc()
  Also: git rm SimSelect.c.new (was this always here?)
  Also: ExtTech.c: fix uninitialized exts_linearResist value leaks into extresist
  Also: ASSERT fixes (typo in variable and bad integer casting)
  Also: plotPNM.c: Fix crash due to uninited rtl_args.outfile
  Also: Updated the version number to go along with a bunch of pull request merges for PRs by Darryl Miles.
  
• posted: March 30, 2025 at 2:00am     version: 8.3     revision: 525
  Added handling of coordinates in a FOREIGN statement in a LEF macro. Based on observation of cells in PDKs where ORIGIN and/or FOREIGN are non-zero, added code that forces a correction of LEF macro coordinates to match the GDS coordinates, with an equivalent negative shift of the LEF macro ORIGIN to compensate. Normally, both ORIGIN and FOREIGN will be zero and the added code will do nothing. Note that this code does not handle the additional optional orientation. A LEF macro with a different coordinate system than its GDS is already weird; a LEF macro with a different rotation than its GDS is hopefully something that nobody ever does in practice. If needed, I'll cross that bridge when I come to it.
  
• posted: March 29, 2025 at 2:00am     version: 8.3     revision: 524
  Added a new "orthogonal" operator to cifoutput to allow non- manhattan shapes (especially minimum-sized ones) to be eliminated, as these can survive a shrink-grow operation intended to get rid of such shapes. This implementation may not be in its final form but should suffice for now.
  
• posted: March 27, 2025 at 2:00am     version: 8.3     revision: 523
  Modified the behavior of SelectCopy() so that it surveys cell instance names in both the selection and in the root edit CellDef, and then wipes duplicate names from the selection and regenerates unique IDs. This avoids the unexpected behavior displayed by magic in which a "copy" function renames the *original* instance and gives the original name to the copied instance. This is not only unexpected, but causes an error in which "undo" after multiple copies fails to remove earlier copies because the name change was not recorded, and the instance can no longer be found by name.
  
• posted: February 24, 2025 at 2:00am     version: 8.3     revision: 522
  Removed two unused statements from EFantenna.c, per the discussion in github pull request #377.
  ResMain.c: use-after-free: simple reorder of statements
  Also: K&R wiring.h wireInt.h: conversion to ANSI
  Also: K&R wiring/*.c: bulk function implementation conversion
  Also: dbwind: DBWAddButtonHandler() cb_database_buttonhandler_t
  Also: wiring: constify API call arguments where possible
  Also: wiring: use 'const' with 'rcsid'
  Also: wiring: forward declaration prototypes and consistency
  Also: CmdCD.c: fix missing 'else' from my recent commit e88dcba1c
  Also: ResReadSim.c remove existing fclose() as conflict with recent change
  Also: textio: removed prototypes for non-existant functions
  Also: textioInt.h: add assumed prototype for Tcl_printf()
  Also: K&R textio: conversion to ANSI
  Also: K&R textio/*.c: bulk forward reference function prototype conversion
  Also: textio: contify various APIs
  Also: textio: constify various data
  Also: textio: constify various internal
  Also: textio: getenv() comes from remove declaration
  Also: txOutput.c: FILR -> FILE (typo fix)
  Also: textio: create callback typedef cb_textio_input_t
  Also: tclmagic.c: match new textio prototypes for constified implementations
  Also: database: TxDialog() constification ripple
  Also: TxParseString() refactor to 1-arg public form
  
• posted: February 23, 2025 at 2:00am     version: 8.3     revision: 521
  Added the ability to translate pointer-based "wire" commands from interactive wiring into coordinate-based commands. Added new command extensions for "wire leg", "wire vertical", "wire type", and "wire horizontal". Modified the command logging such that "wire show" (which does not modify layout) does not get logged, which avoids unnecessary logging of mouse movement.
  extract.h/EFVisit.h include database.h for TileTypeBitMask
  Also: ExtPerim.c: extEnumTilePerim() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: irRoute.c: LayerInTouchingContact() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: gaMazeRoute() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: Plow() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowFindWidth() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowFindWidthBack() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowSrOutline() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowSrShadow() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowSrShadowBack() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowSrShadowInitial() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowPropagateRect() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowInitRule() pass by-pointer const TileTypeBitMask* instead of by-value
  Also: plowSrShadowXxx() callback plowShowShadow() correct return type
  Also: Updated the HTML documentation on the "wire" command to add the new syntax implemented earlier today that preserves interactive wiring moves when logging commands.
  Also: CodeQL File{MayNot,Never}BeClosed.ql file-handle resource leaks
  Also: CodeQL FileMayNotBeClosed.ql PaCheckCompressed() apparently leaks an 'fd'
  Also: Implemented the fix to an expression that should have been logical- AND and not bitwise-AND, as pointed out in PR #376 by Darryl Miles.
  Also: CodeQL LateNegativeTest.ql defRead.c routerLayer>=0
  Also: CodeQL InconsistentNullnessTest.ql ourgl != NULL
  Also: CodeQL MissingNegativtyTest.ql magictype>=0 defWrite.c
  Also: CodeQL MissingNegativtyTest.ql ttype>=0 ResSimSubckt()
  Also: CodeQL IncorrectNotOperatorUsage.ql rtrDcmppose.c rtrCLEAR() usages
  Also: CodeQL LargeParameter.ql: large objects returned (around fd_set usage)
  Also: CodeQL MemoryMayNotBeFreed.ql calma/**
  Also: CodeQL MemoryMayNotBeFreed.ql antennacheckVisit()
  Also: CodeQL MemoryMayNotBeFreed.ql rtrCmd.c CmdRoute()
  Also: CodeQL MemoryMayNotBeFreed.ql rtrCmd.c CmdRoute()
  Also: CodeQL MemoryMayNotBeFreed.ql rtrChannel.c RtrChannelRoute()
  Also: CodeQL MemoryMayNotBeFreed.ql ResRex.c ResCheckSimNodes()
  Also: CodeQL MemoryMayNotBeFreed.ql NMnetlist.c NMWriteNetlist()
  Also: CodeQL MemoryMayNotBeFreed.ql grTCairo1.c GrTCairoPlotSVG()
  Also: K&R lefInt.h: missing prototype removal
  Also: K&R lef.h lefInt.h: conversion to ANSI
  Also: defRead.c: DefRead() incorrect arg0 to LefParseEndStatement()
  Also: lef: post K&R constify ripple
  Also: K&R lef/*.c: bulk function implementation conversion
  Also: tcllef.c: missing include textio/textio.h (due to TxPrint usage)
  Also: defWrite.c: defHNsprintfPrefix() constify implementation
  Also: K&R lef/*.c: bulk forward reference function prototype conversion
  Also: lef/*.h: constify string function arguments
  Also: lef: use 'const' with 'rcsid'
  Also: lef: cleanup remove unused local/static variables
  Also: lef: cleanup mark unnecessary call to function with no side-effects
  Also: lef: constify strings in data structures of lef module
  Also: lef: constify static data and LefNextToken() return
  Also: lef: constify remaining .data into .rodata
  
• posted: February 16, 2025 at 2:00am     version: 8.3     revision: 520
  Fixed an error in which using the command option "gds allow undefined" will cause a segmentation fault.
  One additional fix which allows "gds write" to continue after a cell is found to be missing, if "gds allow undefined" has been set.
  Also: Corrected a syntax error in the old (non-Tcl/Tk) grX11su1.c code that was introduced with a slew of updates back in October, as noticed and reported (with solution) by J. Schonberg.
  
• posted: February 13, 2025 at 2:00am     version: 8.3     revision: 519
  Added code to handle the case where GDS_FILE points to a filename that has since been compressed and given a ".gz" extension. Removed code that uses a system call to "gunzip" and "gzip" when the target file is compressed, since the compression is handled in the code.
  
• posted: February 10, 2025 at 2:00am     version: 8.3     revision: 518
  Fixed a rather long-standing error, which is that when scaling of "MASK_HINTS" was implemented, it was put into a routine that scales all coordinate-related properties, including "FIXED_BBOX", but the original code that scaled only "FIXED_BBOX" was never removed, resulting in the bounding box getting incorrectly scaled twice by any grid scaling.
  Modified the behavior of "select area subcell" so that it no longer requires that subcells be unexpanded in order to select them. This seems to be more in line with what one would expect from the documented description of the "select area" command, and more in line with common-sense expectations.
  
• posted: February 6, 2025 at 2:00am     version: 8.3     revision: 517
  Corrected a crash condition caused by yesterday's commit, if the new CIF operator is used in a tech file. Reworked yesterday's commit to add more related operators, so there are now four new ones (also renamed them): interacting, noninteracting, overlapping, and nonoverlapping. "interacting" now means overlapping or touching; so the four cases allow all variations of adjacency between the two material types.
  
• posted: February 5, 2025 at 2:00am     version: 8.3     revision: 516
  Added a new CIF operator "interact" which enumerates disjoint regions of a given type and retains only those regions which interact with (overlap) another given type. Both sets of types can be either magic database types or CIF temp layers. This will allow the implementation of rules that were not previously possible.
  Added a new CIF operator "not-interact" which is complementary to "interact", because it was trivially easy to implement and saves processing vs. doing the same thing with two templayers and an "and-not" operator.
  
• posted: January 16, 2025 at 2:00am     version: 8.3     revision: 515
  Added a fallback method for "extresist" whenever a device terminal connection to a net that has been decomposed into a resistor array cannot be found. This indicates some fundamental error in the way extresist works. However, it should not be producing an invalid and unsimulatable netlist. Instead, it makes an arbitrary connection from the device terminal to the resistor array and adds an entry in the output netlist (.res.ext file). This results in a poor representation of the resistor network to that terminal, but an otherwise simulatable netlist. A warning is issued to note that an arbitrary connection has been made. This is most typically a "garbage in, garbage out" situation in which insufficient information exists in a layout to inform magic on which direction current is traveling through a net. However, it should be possible to rewrite the extresist code so that magic makes somewhat informed decisions about current paths and produces a halfway decent representation of the actual net, instead of just giving up on the detailed extraction.
  
• posted: January 13, 2025 at 2:00am     version: 8.3     revision: 514
  Modified a routine to return a valid string when attempting to generate a name for an instance that is set to NULL. It is not clear to me by an instance would have a NULL name, but apparently it can happen, and should not crash magic.
  
• posted: January 11, 2025 at 2:00am     version: 8.3     revision: 513
  gcc: support -Werror=format-security
  Updated the version to go along with the merge of pul request
  Also: Added the contents of the "readline" module back. This is generally unused, as it is incompatible with the Tcl/Tk build of magic. However, I had not intended to remove it, only move the name from "readline-4.3" to "readline". But "readline/readline" was in .gitignore, which caused the contents to be removed from the repository. This commit restores those files, and also prevents the readline directory Makefile from making a symbolic link called "readline" to itself, which was causing compile-time issues. The readline code is only kept for backwards compatibility with ancient versions of magic not using the Tcl/Tk interpreter.
  
• posted: January 8, 2025 at 2:00am     version: 8.3     revision: 512
  gcc11 -Wall -Wpedantic cleanup
  utils/*.c: K&R conversion to ANSI
  Also: hash.c: K&R conversion to ANSI and constify arguments / callback
  Also: extflat: K&R various converted to ANSI (mainly due to bool use)
  Also: ihash.c: cleanup warning use of void* with pointer arithmetic
  Also: database/database.h.in: const PaintResultType *resultTbl
  Also: gcc11 -Wall -Wpedantic cleanup (post TCL9)
  Also: gcc11 -Wall -Wpedantic cleanup (post TCL9) FUN2CD() CD2FUN()
  Also: gcc11 -Wall -Wpedantic cleanup (post __attribute__)
  Also: gcc11 -Wall -Wpedantic cleanup (post __attribute__ DLONG_PREFIX)
  Also: gcc11 -Wall -Wpedantic document for the next person
  Also: Revert "commands/CmdFI.c: added CmdFlush_NoConfirm option to disable flush prompt
  Also: feat: flush [-noprompt], option support
  Also: docs: quit -noprompt
  Also: feat: quit [exit_status], option support
  Also: CIFread.h: fix struct cifrstyle.crs_layers type bool -> enum (unsigned char)
  Also: resis.h: create RESTRUE to replace use of TRUE macro ((bool)1)
  Also: Updated the version number to go along with the merge of several pull requests from Darryl Miles.
  
• posted: January 7, 2025 at 2:00am     version: 8.3     revision: 511
  Modified the code in ext2spice.c that prints parameter values; the former code attempted to determine the precision and generate an output without unnecessary trailing zeros. Unfortunately there were counterexamples that fail to be formatted correctly, as found by Mark Martin, and which generate output that has roundoff error. Reimplemented the method using code found on StackOverflow, which appears to solve the problem more robustly.
  
• posted: January 5, 2025 at 2:00am     version: 8.3     revision: 510
  printf: use compiler __attribute__((format (printf,fff,aaa)))
  printf: vararg functions use 'const' for format string
  Also: magic.h: add macro __unused__
  Also: utils/magic.h: ATTR_UNREACHABLE ATTR_NORETURN
  Also: utils/main.h: MainExit() add ATTR_NORETURN hint
  Also: grOGL1.c: use ATTR_UNREACHABLE to help analyser
  Also: utils/magic.h: ATTR_SENTINEL __attribute__ ((sentinel))
  Also: utils/magic.h: ANALYSER_xxxxxxxxxx __attribute__
  Also: geometry.c: TxError() constify call-site
  Also: tclmagic.c: printf style constify fmt call-site
  Also: txOutput.c: printf style constify fmt call-site
  Also: LIBtextio.c: printf style constify fmt call-site
  Also: DRCtech.c: printf style constify fmt call-site
  Also: ext2sim.c: printf style constify fmt call-site
  Also: ext2hier.c: printf style constify fmt call-site
  Also: EFerr.c: printf style constify fmt call-site
  Also: extflat.h: efReadError() printf ATTR_FORMAT_PRINTF_1
  Also: ext2spice.c: printf style constify fmt call-site
  Also: TCL9: magic.h ClientData type change helper macros
  Also: TCL9: _ANSI_ARGS_ compatibility macro removal
  Also: TCL9: Tk_Offset() macro removal
  Also: TCL9: CONST removal (all current compilers support const keyword)
  Also: TCL9: CONST84 removal (all current compilers support const keyword)
  Also: TCL9: Tcl_xxxxxxx() API changes around Tcl_SaveResult()
  Also: TCL9: Tcl_Size type introduction
  Also: TCL9: Tk_ConfigureWidget() function signature change
  Also: TCL9: plugin createProc() function signature change ImgLayerCreate()
  Also: TCL9: ClientData macro header file changes
  Also: TCL9: ClientData macro assignment and access usage
  Also: TCL9: Tcl_SetExitProc() API was removed
  Also: TCL9: Tcl_InitStubs(version="9.0")
  Also: TCL9: Tcl_GetIntFromObj() call checked
  Also: TCL9: CmdLQ.c Tcl_AppendResult(... (char*)NULL) cast sentinal
  Also: TCL9: TxResetTerminal(bool force) added arguments
  Also: TCL9: *.tcl changes $::tcl_platform
  Also: TCL9: FIXME OPTIONAL magic.h ClientData
  Also: Revert "TCL9: *.tcl changes $::tcl_platform
  Also: HACK tkcon.tcl to get it running
  Also: cif/CIFgen.c: fix incorrect type bool -> int
  Also: GHA: MacOS maintenance update
  Also: CalmaRdpt.c: simplfy use of sprintf()
  Also: calma: use 'const' with readonly data
  Also: calma: use 'const' with 'rcsid'
  Also: cif: use 'const' with 'rcsid'
  Also: CIFrdpoly.c: qsort 'compar' function argument prototype fix
  Also: cif: use 'const' with readonly data (also consumer DBpaint)
  Also: cmwind: use 'const' with 'rcsid'
  Also: cmwind: use 'const' with readonly data
  Also: command: use 'const' with 'rcsid'
  Also: command: use 'const' with readonly data
  Also: debug: use 'const' with 'rcsid'
  Also: debug/hist.c: constify and add prototype
  Also: debug/debug.c: constify and add prototype
  Also: Remove superfluous parenthesis around regular type declarations
  Also: fix infinite def write
  Also: lef/defWrite.c: reworked kareefardi_fix-def-write
  Also: Updating the revision number to go along with the merging of a series of pull requests from Darryl Miles.
  Also: Modified some lines in tkcon.tcl that make it compatible with both Tcl 8.6 and Tcl 9.0, fixing some features that got broken with an attempt to update the script for version 9.0.
  
• posted: December 27, 2024 at 2:00am     version: 8.3     revision: 509
  K&R calma: missing prototype: calmaWriteContacts()
  K&R calma.h: conversion to ANSI
  Also: K&R calmaInt.h: conversion to ANSI
  Also: K&R calma: prototype for non-existent function: calmaWriteMarkFunc()
  Also: K&R calma: prototype for non-existent function: calmaMergeBoundaries()
  Also: K&R calma: remove system header time() K&R style prototype
  Also: configure: autoconf regen (2.69) to add HAVE_SYS_TIME_H
  Also: K&R calma/*.c: bulk forward reference function prototype conversion
  Also: K&R calma/*.c: bulk function implementation conversion
  Also: K&R CalmaRead.c: too many args for calmaLookCell()
  Also: K&R calma: missing HAVE_ZLIB ifdef around function using type gzFile
  Also: K&R CalmaWriteZ.c: move typedef to before forward declaration
  Also: K&R CalmaWrite.c: move typedef to before forward declaration usage
  Also: K&R calma: move internal prototypes and typedef to calmaInt.h
  Also: commands/CmdFI.c: added CmdFlush_NoConfirm option to disable flush prompt
  Also: GHA: main-macos.yml
  Also: MacOS: FREAD rename to magicFREAD due to sys/fcntl.h definition
  Also: scripts/configure_mac --x-includes=... --x-libraries=...
  Also: MacOSX diagnostics Kick The Tyres
  Also: configure.in: X11 detection and option order
  Also: GHA: main.yml move MacOSX to its own workflow
  Also: MacOSX diagnostics Search
  Also: main-macos.yml install libglu freeglut on x86_64
  Also: main-macos.yml log output extract CONFIGURE_ARGS
  Also: main-macos.yml add Summary step
  Also: main-macos.yml add Prepare archive and Upload archive steps
  Also: calma/CalmaWrite.c: calmaProcessBoundary() Dereference of null pointer
  Also: calma/CalmaWrite.c: calmaProcessBoundaryZ() Dereference of null pointer
  Also: ext2spice.c: pname used before initialization
  Also: EFbuild.c:1330 ASSERT(nn) added
  Also: EFname.c: potential dereference of a null pointer
  Also: extflat/EFname.c: EFHNBest() add argument ASSERT to convey intention
  Also: ExtBasic.c: oppdir, The right operand of '==' is a garbage value
  Also: gaStem.c: type, The left operand of '==' is a garbage value
  Also: grDStyle.c: GrLoadStyles() scount, The left operand of '<' is a garbage value
  Also: grDStyle.c: newres, Branch condition evaluates to a garbage value
  Also: grOGL1.c: pipehandler() XEvent processing NULL deref
  Also: grOGL1.c: GrOGLIconUpdate() potential -1 out-of-bound access
  Also: grOGL3.c: font, The left operand of '==' is a garbage value
  Also: grOGL3.c: add GrOGLTextSize() error return
  Also: lefRead.c: LefError() add ASSERT(type) for incorrect caller usage
  Also: grTCairo1.c: GrTCairoIconUpdate() potential -1 out-of-bound access
  Also: grTk1.c: GrTkIconUpdate() potential -1 out-of-bound access
  Also: grTOGL1.c: GrTOGLIconUpdate() potential -1 out-of-bound access
  Also: grX11su1.c: GrX11IconUpdate() potential -1 out-of-bound access
  Also: K&R: prototype for non-existent function: CIFGetDefaultContactSize()
  Also: K&R: cif.h conversion to ANSI
  Also: K&R: CIFint.h conversion to ANSI
  Also: K&R: CIFread.h conversion to ANSI
  Also: K&R: cif/*.c bulk forward reference function prototype conversion