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Comment:Version => 8.6.18
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SHA3-256: b32fdef952b715f1ad986b8c36ed0b2d5d26677d36dc23004cd2f609c19aa978
User & Date: jan.nijtmans 2025-08-16 17:17:19.792
Context
2025-08-18
13:20
Update "platform" for MacOS-26 (Tahoe). See [https://core.tcl-lang.org/tk/tktview/a91b242d43|a91b242... check-in: 1c3b805ec2 user: jan.nijtmans tags: bug-a91b242d43
2025-08-16
22:00
Merge-mark check-in: 4e7cb60dd0 user: jan.nijtmans tags: core-9-0-branch
17:17
Version => 8.6.18 Leaf check-in: b32fdef952 user: jan.nijtmans tags: core-8-6-branch
2025-08-15
19:15
Merge release check-in: 92f1b4254e user: dgp tags: core-8-6-branch
Changes
Unified Diff Ignore Whitespace Patch
Changes to README.md. 
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# README:  Tcl

This is the **Tcl 8.6.17** source distribution.

You can get any source release of Tcl from [our distribution
site](https://sourceforge.net/projects/tcl/files/Tcl/).

9.0 (production release, daily build)
[![Build Status](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml?query=branch%3Amain)
[![Build Status](https://github.com/tcltk/tcl/actions/workflows/win-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/win-build.yml?query=branch%3Amain)



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# README:  Tcl

This is the **Tcl 8.6.18** source distribution.

You can get any source release of Tcl from [our distribution
site](https://sourceforge.net/projects/tcl/files/Tcl/).

9.0 (production release, daily build)
[![Build Status](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml?query=branch%3Amain)
[![Build Status](https://github.com/tcltk/tcl/actions/workflows/win-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/win-build.yml?query=branch%3Amain)
︙︙
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2025-07-21 (bug) [61c01e] Flawed ref counts in filesystem implementation for Windows led to use-after-free (sebres)

2025-08-12 (new) dde => 1.4.5

2025-08-12 (bug) [992f94] avoid misaligned pointers in macOS file attribute functions (chavez)

- Released 8.6.17, Aug 15, 2025 - details at https://core.tcl-lang.org/tcl/ -










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2025-07-21 (bug) [61c01e] Flawed ref counts in filesystem implementation for Windows led to use-after-free (sebres)

2025-08-12 (new) dde => 1.4.5

2025-08-12 (bug) [992f94] avoid misaligned pointers in macOS file attribute functions (chavez)

- Released 8.6.17, Aug 15, 2025 - details at https://core.tcl-lang.org/tcl/ -

- (to be) Released 8.6.17, Apr ??, 2026 - details at https://core.tcl-lang.org/tcl/ -
Changes to generic/tcl.h.
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#   define TCL_MAJOR_VERSION   8
#endif
#if TCL_MAJOR_VERSION != 8
#   error "This header-file is for Tcl 8 only"
#endif
#define TCL_MINOR_VERSION   6
#define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
#define TCL_RELEASE_SERIAL  17

#define TCL_VERSION	    "8.6"
#define TCL_PATCH_LEVEL	    "8.6.17"

/*
 *----------------------------------------------------------------------------
 * The following definitions set up the proper options for Windows compilers.
 * We use this method because there is no autoconf equivalent.
 */









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#   define TCL_MAJOR_VERSION   8
#endif
#if TCL_MAJOR_VERSION != 8
#   error "This header-file is for Tcl 8 only"
#endif
#define TCL_MINOR_VERSION   6
#define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
#define TCL_RELEASE_SERIAL  18

#define TCL_VERSION	    "8.6"
#define TCL_PATCH_LEVEL	    "8.6.18"

/*
 *----------------------------------------------------------------------------
 * The following definitions set up the proper options for Windows compilers.
 * We use this method because there is no autoconf equivalent.
 */
︙︙
Changes to library/init.tcl.
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

# This test intentionally written in pre-7.5 Tcl
if {[info commands package] == ""} {
    error "version mismatch: library\nscripts expect Tcl version 7.5b1 or later but the loaded version is\nonly [info patchlevel]"
}
package require -exact Tcl 8.6.17

# Compute the auto path to use in this interpreter.
# The values on the path come from several locations:
#
# The environment variable TCLLIBPATH
#
# tcl_library, which is the directory containing this init.tcl script.








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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#

# This test intentionally written in pre-7.5 Tcl
if {[info commands package] == ""} {
    error "version mismatch: library\nscripts expect Tcl version 7.5b1 or later but the loaded version is\nonly [info patchlevel]"
}
package require -exact Tcl 8.6.18

# Compute the auto path to use in this interpreter.
# The values on the path come from several locations:
#
# The environment variable TCLLIBPATH
#
# tcl_library, which is the directory containing this init.tcl script.
︙︙
Changes to unix/configure.
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TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".17"
VERSION=${TCL_VERSION}

EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}

#------------------------------------------------------------------------
# Setup configure arguments for bundled packages








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TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".18"
VERSION=${TCL_VERSION}

EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}

#------------------------------------------------------------------------
# Setup configure arguments for bundled packages
︙︙
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    /* override */ #undef PACKAGE_STRING
    #endif /* _TCLCONFIG */])
])

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".17"
VERSION=${TCL_VERSION}

EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}

#------------------------------------------------------------------------
# Setup configure arguments for bundled packages








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    /* override */ #undef PACKAGE_STRING
    #endif /* _TCLCONFIG */])
])

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".18"
VERSION=${TCL_VERSION}

EXTRA_INSTALL_BINARIES=${EXTRA_INSTALL_BINARIES:-"@:"}
EXTRA_BUILD_HTML=${EXTRA_BUILD_HTML:-"@:"}

#------------------------------------------------------------------------
# Setup configure arguments for bundled packages
︙︙
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# This file is the basis for a binary Tcl RPM for Linux.

%{!?directory:%define directory /usr/local}

Name:          tcl
Summary:       Tcl scripting language development environment
Version:       8.6.17
Release:       2
License:       BSD
Group:         Development/Languages
Source:        http://prdownloads.sourceforge.net/tcl/tcl%{version}-src.tar.gz
URL:           https://www.tcl-lang.org/
Buildroot:     /var/tmp/%{name}%{version}








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# This file is the basis for a binary Tcl RPM for Linux.

%{!?directory:%define directory /usr/local}

Name:          tcl
Summary:       Tcl scripting language development environment
Version:       8.6.18
Release:       2
License:       BSD
Group:         Development/Languages
Source:        http://prdownloads.sourceforge.net/tcl/tcl%{version}-src.tar.gz
URL:           https://www.tcl-lang.org/
Buildroot:     /var/tmp/%{name}%{version}
︙︙
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# versions of autoconf incorrectly set SHELL to /bin/bash instead of
# /bin/sh. The bash shell seems to suffer from some strange failures.
SHELL=/bin/sh

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".17"
VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION

TCL_DDE_VERSION=1.4
TCL_DDE_MAJOR_VERSION=1
TCL_DDE_MINOR_VERSION=4
DDEVER=$TCL_DDE_MAJOR_VERSION$TCL_DDE_MINOR_VERSION









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# versions of autoconf incorrectly set SHELL to /bin/bash instead of
# /bin/sh. The bash shell seems to suffer from some strange failures.
SHELL=/bin/sh

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".18"
VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION

TCL_DDE_VERSION=1.4
TCL_DDE_MAJOR_VERSION=1
TCL_DDE_MINOR_VERSION=4
DDEVER=$TCL_DDE_MAJOR_VERSION$TCL_DDE_MINOR_VERSION
︙︙
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# versions of autoconf incorrectly set SHELL to /bin/bash instead of
# /bin/sh. The bash shell seems to suffer from some strange failures.
SHELL=/bin/sh

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".17"
VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION

TCL_DDE_VERSION=1.4
TCL_DDE_MAJOR_VERSION=1
TCL_DDE_MINOR_VERSION=4
DDEVER=$TCL_DDE_MAJOR_VERSION$TCL_DDE_MINOR_VERSION









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# versions of autoconf incorrectly set SHELL to /bin/bash instead of
# /bin/sh. The bash shell seems to suffer from some strange failures.
SHELL=/bin/sh

TCL_VERSION=8.6
TCL_MAJOR_VERSION=8
TCL_MINOR_VERSION=6
TCL_PATCH_LEVEL=".18"
VER=$TCL_MAJOR_VERSION$TCL_MINOR_VERSION

TCL_DDE_VERSION=1.4
TCL_DDE_MAJOR_VERSION=1
TCL_DDE_MINOR_VERSION=4
DDEVER=$TCL_DDE_MAJOR_VERSION$TCL_DDE_MINOR_VERSION
︙︙
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