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* Change back tree-sitter version requirement (bug#80108)Yuan Fu2026-02-171-4/+40
| | | | | | | | | | | | | Now we use treesit_traverse_sibling_helper when it exists, and use the old code otherwise. So we still support older tree-sitter versions. * configure.ac (LIBSYSTEMD_CFLAGS): Add back old config checking for the malloc function. Add another check for ts_tree_cursor_goto_previous_sibling. * src/treesit.c: (treesit_traverse_sibling_helper): Add back the old code that doesn't require ts_tree_cursor_goto_previous_sibling.
* Fix SELinux config without -lselinuxPaul Eggert2026-02-151-25/+32
| | | | | | | | | | | | | | Without this fix, a 64-bit build on Ubuntu 25.10 x86-64 failed when the libselinux1-dev:i386 package (providing <selinux/selinux.h>) was installed but the libselinux1-dev package (providing /usr/lib/x86_64-linux-gnu/libselinux.so) was not. The first symptom was when compiling emacsclient: ‘/usr/bin/ld: ../lib/libgnu.a(file-has-acl.o): in function `get_aclinfo': .../lib/file-has-acl.c:247:(.text+0x4d8): undefined reference to `getfilecon'’. * configure.ac: Default with_selinux to maybe, not to yes. Defer our SELinux configuration to after Gnulib’s, so that we handle any SELinux problems that Gnulib discovers.
* Fix tree-sitter traversal slowness (bug#80108)Yuan Fu2026-01-281-28/+4
| | | | | | | | * configure.ac (LIBSYSTEMD_CFLAGS): Increase minimal required tree-sitter version to 0.20.10. * src/treesit.c (treesit_traverse_sibling_helper): When traversing forward, use the new function ts_tree_cursor_goto_previous_sibling.
* Clarify libwebp configuration checksBasil L. Contovounesios2026-01-241-6/+10
| | | | | | | | | * configure.ac [HAVE_WEBP]: Explicitly check for both libwebpdemux and libwebp (where the former depends on the latter), since we use both (bug#57420, bug#61988, bug#66221). Check for WebPDecodeRGBA as a representative of libwebp and libwebpdecoder now that we no longer use WebPGetInfo elsewhere. Prepend WEBP_LIBS to LIBS as per AC_CHECK_LIB. Clarify commentary.
* Omit -Wzero-as-null-pointer-constantPaul Eggert2026-01-191-0/+1
| | | | | | | | * configure.ac: If --enable-gcc-warnings, don’t use -Wzero-as-null-pointer-constant, which is enabled by default with bleeding-edge Gnulib (as there seems to be movement in this direction in C2y). Although -Wzero-as-null-pointer-constant is useful, Emacs isn’t clean for it yet.
* NS: Fix startup with HAVE_NATIVE_COMP && !NS_SELF_CONTAINEDYavor Doganov2026-01-171-0/+3
| | | | | | | * src/pdumper.c (pdumper_set_emacs_execdir): Add workaround for !NS_SELF_CONTAINED so that launching Emacs from the app bundle works flawlessly when built with native compilation. * configure.ac: Define BINDIR. (Bug#80094)
* NS: Use Cocoa implementation of EmacsBell -init if named image is declaredYavor Doganov2026-01-101-0/+5
| | | | | | | * configure.ac: Check for 'NSImageNameCaution' declaration when building on GNUstep. * src/nsterm.m ([EmacsBell init]): Use fallback implementation on GNUstep only if 'NSImageNameCaution' is not declared. (Bug#80107)
* ; Add 2026 to copyright years.Sean Whitton2026-01-011-3/+3
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* Use GCC warning -Wunused-const-variable=2Paul Eggert2025-12-131-1/+0
| | | | | | * configure.ac: Stop suppresssing -Wunused-const-variable=2 when configured --with-gcc-warnings. Suppressing no longer seems to be needed with current GCC and src/lisp.h.
* Work even if aclocal is invoked by handPaul Eggert2025-12-091-6/+14
| | | | | | | | Problem reported by Ulrich Müller (bug#79974). * configure.ac (gl_ALIGNASOF): Arrange for it to be defined even if aclocal is invoked other than via admin/merge-gnulib. Also, change comments from # to dnl as they don’t make much sense in the shell script.
* Garbage-collect Gnulib sourcesPaul Eggert2025-12-091-1/+0
| | | | | | | | | | | Remove Gnulib sources no longer needed or used. admin/merge-gnulib is typically not smart enough to do that. * configure.ac: Do not call gl_EEMALLOC, as it is no longer supplied or needed. * lib/explicit_bzero.c, lib/malloc/scratch_buffer_dupfree.c: * lib/xalloc-oversized.h, m4/eealloc.m4, m4/explicit_bzero.m4: * m4/st_dm_mode.m4, m4/year2038.m4: Remove.
* Move Gnulib configuration back to where it wasPaul Eggert2025-12-081-25/+28
| | | | | | | | | | | * configure.ac: Move the gl_INIT call back to where it was, as Mattias Engdegård reported the following problem: checking whether pthread_sigmask is a macro... no ./configure: line 32767: test: =: unary operator expected because moving gl_INIT up made the check for pthread_sigmask’s availability appear later than Gnulib’s check whether it’s a macro. Instead of moving gl_INIT up, call gl_ALIGNASOF earlier, as that’s the only part of gl_INIT that is needed earlier.
* Align config.h better to src/lisp.hPaul Eggert2025-12-071-38/+40
| | | | | | | | | | | | | | | | | This is mostly a cleanup patch to fix growing discrepancies between src/lisp.h and configure.ac in terms of how they deduce how EMACS_INT aligns. The patch includes a static check that the two methods now agree. It also speeds up ‘configure’ a bit. * configure.ac (ALIGNOF_INT, ALIGNOF_LONG, ALIGNOF_LONG_LONG): Remove; no longer used. (ALIGNOF_EMACS_INT): New macro. (system_malloc): Set to 'no' more consistently with what’s in src/lisp.h. * src/lisp.h (ALIGNOF_EMACS_INT): Do not define here, as config.h defines it now. Check that config.h’s definition equals the actual alignof (EMACS_INT). (USE_USB_TAG): Set more consistently with what’s in configure.ac. (alignas): Don’t second-guess Gnulib.
* Move Gnulib configuration up in configure.acPaul Eggert2025-12-071-19/+20
| | | | | | This is so that later patches can fix some near-duplication errors in the malloc configuration. * configure.ac: Move Gnulib configuration earlier.
* Remove some obsolete C89, C99, Automake cruftPaul Eggert2025-12-071-8/+0
| | | | | | These have not been needed for some time in configure.ac. * configure.ac (_AC_PROG_CC_C89): Don’t bother redefining to empty. (gl_PROG_CC_C99, AC_PROG_CC_C_O): Remove; no longer needed.
* ; xwidgets: pacify macOS compiler warningsAlexander Adolf2025-12-061-1/+10
| | | | | | | * configure.ac: When the WebKit header files are not available in the hard-coded location, query for the location of the currently active SDK, and resort to the header files there. (Bug#79847)
* Port to GNU/Linux HPPA mallocPaul Eggert2025-12-021-0/+6
| | | | | | | | | | | | | | | | | | | | | | On this platform, you cannot reliably malloc objects containing values of type pthread_mutex_t or pthread_cond_t, since malloc guarantees only 8-byte alignment but these two types require 16-byte alignment. See GCC bug 115750 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115750> reported by Sam James and Emacs bug 79936 <https://bugs.gnu.org/79936> reported by John Paul Adrian Glaubitz. * configure.ac (ALIGNOF_MAX_ALIGN_T, ALIGNOF_PTHREAD_COND_T) (ALIGNOF_PTHREAD_MUTEX_T) [HAVE_PTHREAD]: New C macros. * src/systhread.c (sys_mutex_init, sys_mutex_lock) (sys_mutex_unlock, sys_cond_init, sys_cond_wait) (sys_cond_signal, sys_cond_broadcast, sys_cond_destroy): Use SYTHREAD_ALIGN_PTR to convert sys_mutex_t and sys_cond_t to pthread_mutex_t and pthread_cond_t, since runtime conversion is needed on GNU/Linux HPPA. * src/systhread.h (SYSTHREAD_ALIGN_ROOM, SYSTHREAD_ALIGN_PTR): New macros, which affect the generated code only on unusual platforms like GNU/Linux HPPA. (sys_mutex_t, sys_cond_t) [HAVE_PTHREAD]: Use them.
* Port better to GNUstep with Nix gccPaul Eggert2025-11-271-9/+17
| | | | | | | | | | Problem reported by David Caldwell (bug#79879). * configure.ac: When configuring for GNUstep and the Objective C compiler does not support even C99 features, use the first flag of -std=gnu23, -std=gnu17, -std=gnu11, -std=gnu99 that works, instead of insisting on -std=c99 which (a) is too strict and (b) can override another -std= option in an undesirable way.
* Disable C23 for Android buildsPo Lu2025-11-211-0/+4
| | | | | * configure.ac (ac_cv_prog_cc_c23): Define to no when configuring for Android.
* * configure.ac Remove patch for bugs in nproc that have been remediated.Po Lu2025-11-071-6/+0
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* Fix compilation on Android SDK 20 and earlierPo Lu2025-11-051-0/+6
| | | | | * configure.ac (gl_PREREQ_NPROC): Disable ac_cv_header_mntent_h if on Android and setmntent is not declared.
* Fix the Android portPo Lu2025-11-051-5/+0
| | | | | | | | * configure.ac (gl_cv_onwards_func_tzalloc): Don't disable on Android SDK 35. * src/conf_post.h (tzalloc): Don't override Gnulib-selected identifier on Android SDK 35.
* Fix macOS build with SDK version 26Robert Pluim2025-09-291-1/+1
| | | | | | | * configure.ac: Use gl_CHECK_FUNCS_ANDROID_MACOS to check for 'posix_spawn_file_actions_addchdir', since it checks which version of macOS is being used for the build, rather than what is available in the SDK. (Bug#79489)
* ; * configure.ac: Document why AC_CONFIG_SUBDIRS is not suitable for `exec'.Po Lu2025-09-291-2/+3
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* ; Update comment re GCC bugs 117423 and 119085.Paul Eggert2025-09-171-1/+1
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* Update comments re GCC bugs 117423 and 119085Paul Eggert2025-08-201-2/+2
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* GCC union bugs to be fixed in GCC 15.2Paul Eggert2025-07-301-20/+17
| | | | | | | | | | Thanks to Martin Jambor for the GCC fixes; see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117423#c27 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119085#c12 Also, thanks to Sam James for letting me know. * configure.ac (emacs_cv_gcc_union_bugs_CFLAGS): Rename from emacs_cv_gcc_bug_119085_CFLAGS. All uses changed. Assume the GCC union bugs will be fixed in GCC 15.2.
* GCC bug 119085 fixed in GCC 16Paul Eggert2025-07-231-9/+7
| | | | | * configure.ac (emacs_cv_gcc_bug_119085_CFLAGS): Assume the bug is fixed starting in GCC 16.
* GCC bug 117423 has a fixPaul Eggert2025-07-181-14/+17
| | | | | | | Document the change in dependency. As we still need to work around GCC bug 119085, there is no functional change in ‘configure’. * configure.ac (emacs_cv_gcc_bug_119085_CFLAGS): Rename from emacs_cv_gcc_bug_117423_CFLAGS. All uses changed.
* Work around GCC bug 121030Paul Eggert2025-07-131-1/+3
| | | | * configure.ac: Disable -Wanalyzer-use-of-uninitialized-value.
* * configure.ac: Detect Android API 36.Po Lu2025-06-111-6/+8
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* Pacify Clang's -Wformat-signedness.Collin Funk2025-06-021-0/+1
| | | | * configure.ac: Enable -Wno-format-signedness if Clang is being used.
* Work around GCC bug 117423Paul Eggert2025-05-211-42/+43
| | | | | | | Problem reported by Oliver Reiter and Pip Cet (Emacs bug#78473). It looks like GCC tree-sra is trouble in general with how Emacs uses unions, so disable tree-sra until the GCC bug is fixed. * configure.ac (C_SWITCH_MACHINE): Also work around GCC bug 117423.
* Fix compilation on Android 35 and on TermuxPo Lu2025-05-061-4/+9
| | | | | | | | | * configure.ac (gl_cv_onwards_func_tzalloc): Define to "future OS version" on Android API 35 and later. Detect posix_spawn* by means of gl_CHECK_FUNCS_ANDROID. * src/conf_post.h (tzalloc, tzfree): Define to non-conflicting names on Android 35 and later.
* Use -Wtrailing-whitespace when warningPaul Eggert2025-04-191-0/+1
| | | | | * configure.ac: When enabling GCC warnings, enable GCC 15’s new -Wtrailing-whitespace option if available, as that’s the Emacs style.
* ; Fix typo in comment.Paul Eggert2025-04-121-1/+1
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* New configure option --with-systemduserunitdirUlrich Müller2025-03-141-0/+18
| | | | | | | | * configure.ac (systemduserunitdir): New variable and option. * Makefile.in (systemduserunitdir): New, set by configure. (install-etc, uninstall): Don't install emacs.service when systemduserunitdir is unspecified. * etc/NEWS: Announce the new configure option. (Bug#76924)
* Don't warn about Xft >= 2.3.6Po Lu2025-03-121-6/+20
| | | | | * configure.ac: Don't warn about Xft >= 2.3.6. Clarify warning message printed on old releases.
* ; Replace "Elisp" with "Lisp" or "Emacs Lisp" in some placesSean Whitton2025-03-121-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (libgccjit_not_found_err) (libgccjit_dev_not_found_err): * doc/lispref/elisp.texi (Top): * doc/lispref/functions.texi (What Is a Function): * doc/lispref/parsing.texi (Parsing Program Source) (Tree-sitter C API): * doc/misc/gnus.texi (The Gnus Registry): * etc/TODO: * lisp/auth-source.el (auth-source-search): * lisp/cedet/semantic/bovine/el.el (emacs-lisp-mode): * lisp/editorconfig.el (editorconfig-get-local-variables-functions): * lisp/emacs-lisp/cconv.el (cconv-make-interpreted-closure): * lisp/emacs-lisp/oclosure.el (cconv--interactive-helper): * lisp/net/tramp-message.el (tramp-debug-font-lock-keywords): * src/frame.c (do_switch_frame): * test/lisp/emacs-lisp/shortdoc-tests.el (shortdoc-help-fns-examples-function-test): Say "Lisp" not "Elisp". * lisp/progmodes/peg.el (peg-translate-exp): Say "Emacs Lisp" not "Elisp".
* Fix capitalization ELisp -> ElispSean Whitton2025-03-121-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (libgccjit_not_found_err) (libgccjit_dev_not_found_err): * doc/emacs/buffers.texi (List Buffers): * doc/lispref/elisp.texi (Tree-sitter C API): * doc/lispref/functions.texi (What Is a Function): * doc/lispref/parsing.texi (Parsing Program Source) (Tree-sitter C API): * doc/misc/gnus.texi (The Gnus Registry): * etc/DEBUG: * etc/NEWS: * etc/NEWS.25: * etc/NEWS.26: * etc/NEWS.28: * etc/NEWS.30: * etc/TODO: * lib-src/emacsclient.c (print_help_and_exit): * lisp/auth-source.el (auth-source-search): * lisp/cedet/semantic/bovine/el.el (emacs-lisp-mode): * lisp/cedet/semantic/wisent/comp.el (wisent-automaton-lisp-form): * lisp/cedet/srecode/el.el (srecode-semantic-apply-tag-to-dict): * lisp/editorconfig.el (editorconfig-get-local-variables-functions): * lisp/emacs-lisp/bindat.el (bindat-type): * lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand): * lisp/emacs-lisp/cconv.el (cconv-make-interpreted-closure): * lisp/emacs-lisp/cl-macs.el (cl--labels-convert): * lisp/emacs-lisp/lisp-mode.el (lisp-fdefs) (lisp-fill-paragraphs-as-doc-string): * lisp/emacs-lisp/macroexp.el (macroexp--fgrep): * lisp/emacs-lisp/oclosure.el (cconv--interactive-helper): * lisp/emacs-lisp/re-builder.el: * lisp/erc/erc-button.el (erc-emacswiki-lisp-url): * lisp/help-fns.el (help-fns--describe-function-or-command-prompt): * lisp/menu-bar.el (menu-bar-search-documentation-menu): * lisp/net/tramp-message.el (tramp-debug-font-lock-keywords): * lisp/org/org-capture.el (org-capture): * lisp/org/org.el (org-category, org-todo): * lisp/org/ox.el (org-export-async-start): * lisp/progmodes/elisp-mode.el (emacs-lisp-mode): * lisp/progmodes/peg.el (peg-translate-exp): * lisp/progmodes/ruby-ts-mode.el: * lisp/woman.el (woman-mode, woman-parse-numeric-arg): * src/chartab.c (map_char_table_for_charset): * src/fns.c (extract_data_from_object): * src/frame.c (do_switch_frame): * src/keyboard.c (make_lispy_event): * test/lisp/emacs-lisp/cl-macs-tests.el (cl-&key-arguments): * test/lisp/emacs-lisp/shortdoc-tests.el (shortdoc-help-fns-examples-function-test): * test/manual/etags/c-src/emacs/src/keyboard.c (make_lispy_event): Fix capitalization ELisp -> Elisp.
* Don't claim that xftfont is being considered for deletionPo Lu2025-03-101-3/+2
| | | | | | * configure.ac: Don't claim that Xft is being considered for deletion or that recent releases are buggy, or imply that HarfBuzz support is exclusive to Cairo.
* Re-port to 32-bit systems without alignment primitivesPo Lu2025-03-091-17/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (ALIGNOF_INT, ALIGNOF_LONG, ALIGNOF_LONG_LONG): New variables. (emacs_cv_alignas_unavailable): Define if alignas and structure alignment primitives are unavailable. In such an environment, the MSB tagging scheme must be enabled, as must the GNU malloc. * msdos/sed2v2.inp: Adjust correspondingly. * src/alloc.c (union emacs_align_type): Remove types which contain flexible array members. The address of a field subsequent to an aggregate with flexible array members cannot validly be taken. (mark_memory) [!USE_LSB_TAG && !WIDE_EMACS_INT]: Strip type bits before scanning memory. * src/emacs.c (main): * src/eval.c (Fautoload_do_load): * src/fns.c (Frequire): Rename a number of illogically named fields. * src/lisp.h (ALIGNOF_EMACS_INT): Define to the natural alignment of EMACS_INT. (IDEAL_GCALIGNMENT): New macro. (USE_LSB_TAG): Disable if no alignment specifiers are available, WIDE_EMACS_INT is undefined, and the natural alignment of EMACS_INT falls short of LSB tagging's requirements. (gflags): Rename illogically named fields and don't define them as bitfields, which runs afoul of certain compiler issues. (will_dump_p, will_bootstrap_p, will_dump_with_pdumper_p) (dumped_with_pdumper_p): Adjust accordingly. * src/pdumper.c (VM_SUPPORTED): Define to 0 when !USE_LSB_TAG. It is better to read dump files into the heap by hand than to be supplied with an address that is not representable. (_dump_object_start_pseudovector): Rename to dump_object_start_pseudovector, to avoid encroaching on reserved names. (START_DUMP_PVEC): Adjust correspondingly. (dump_mmap_contiguous_vm): Preserve errno around failure cleanup. (dump_bitset_bit_set_p): Work around certain compiler issues. (pdumper_load) [!USE_LSB_TAG]: Reject dump file allocations that are not representable as Lisp_Objects. Tested on i386-unknown-solaris2.10, sparc-sun-solaris2.10.
* ; Grammar fixes for "native-compiled"Stefan Kangas2025-02-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Prefer "native-compiled" to "native compiled". The adjective "native-compiled" with the hyphen is generally more consistent with the typical pattern in English, especially when the compound modifies a noun (e.g., "native-compiled code"). 2. Prefer "natively compiled" to "natively-compiled". The adverb "natively" modifies "compiled", and it is standard not to hyphenate an adverb + adjective combination when the adverb ends in -ly (e.g., "code that is natively compiled"). For example, note that we say "high-speed internet" but "highly performant code". * Makefile.in (dest): * configure.ac (HAVE_NATIVE_COMP): * doc/emacs/building.texi (Lisp Libraries): * doc/lispref/compile.texi (Native Compilation) (Native-Compilation Functions, Native-Compilation Variables): * doc/lispref/functions.texi (What Is a Function, Declare Form): * doc/lispref/loading.texi (How Programs Do Loading, Library Search): * etc/NEWS: * etc/NEWS.28: * etc/NEWS.29: * etc/NEWS.30: * lisp/emacs-lisp/comp-common.el (native-comp-never-optimize-functions) (comp-function-type-spec): * lisp/emacs-lisp/comp-cstr.el: * lisp/subr.el (locate-eln-file): * src/comp.c (SETJMP_NAME, syms_of_comp): * src/data.c (Fsubrp, Fnative_comp_function_p, Fsubr_native_lambda_list): * src/lread.c (Fload): * src/pdumper.c (dump_do_dump_relocation): * test/src/comp-tests.el (lambda-return2): Avoid grammatically incorrect variations on "natively compiled" and "native-compiled". (Bug#56727)
* * configure.ac (BOBJECTLIST_OWNERSHIP_IS_TEMPLATE_PARAMETER): Correct test.Po Lu2025-02-211-1/+1
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* Fix compilation on Haiku Nightly hrev58622Po Lu2025-02-101-0/+11
| | | | | | | | | | * configure.ac (BOBJECTLIST_OWNERSHIP_IS_TEMPLATE_PARAMETER): Define if BObjectList ownership over its contents is specified as a template parameter. * src/haiku_support.cc (class EmacsFontSelectionDialog) [BOBJECTLIST_OWNERSHIP_IS_TEMPLATE_PARAMETER]: Adjust accordingly.
* Fix OpenBSD compilation (bug#76009)Manuel Giraud2025-02-031-3/+1
| | | | * configure.ac: Remove a bogus LD_SWITCH_SYSTEM for OpenBSD.
* Announce XINERAM and XRANDR in 'system-configuration-features'Eli Zaretskii2025-02-021-2/+2
| | | | | * configure.ac (emacs_config_features): Add XINERAMA and XRANDR. (Bug#75936)
* Merge branch 'scratch/no-purespace' into 'master'Stefan Kangas2025-02-011-272/+9
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| * ; * configure.ac: Minor simplification.Stefan Kangas2024-12-291-2/+0
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| * Delete firstfile.c and lastfile.cStefan Kangas2024-12-281-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | With the removal of unexec and purespace, the definitions in these files are no longer used. Remove them. * src/firstfile.c: * src/lastfile.c: Delete unused files. * configure.ac (PRE_ALLOC_OBJ, POST_ALLOC_OBJ, FIRSTFILE_OBJ): Remove variables and dependent code. * msdos/autogen/Makefile.in: * msdos/sed1v2.inp: * src/Makefile.in: Don't use above deleted variables. * src/deps.mk: Remove lastfile.c dependencies.
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