Always enable native JSON support and remove Jansson references

* src/json.c (Fjson__available_p): Remove.
* lisp/subr.el (json-available-p): Always return t.
* admin/nt/dist-build/build-dep-zips.py:
* configure.ac:
* doc/lispref/text.texi (Parsing JSON):
* java/INSTALL:
* java/org/gnu/emacs/EmacsNative.java (EmacsNative):
* lisp/term/w32-win.el (dynamic-library-alist):
* m4/ndk-build.m4 (ndk_INIT):
* msdos/sed1v2.inp:
* nt/INSTALL:
* nt/INSTALL.W64:
* src/Makefile.in:
* src/emacs.c (main):
* src/lisp.h:
Remove JSON configuration options and references to it and Jansson from
documentation and build files.
* etc/NEWS: Announce.

1 files changed, 1 insertions, 31 deletions

diff --git a/configure.ac b/configure.ac
index bd678ea52a3..b1dbaa13155 100644
--- a/configure.ac
+++ b/configure.ac
@@ -548,7 +548,6 @@ OPTION_DEFAULT_OFF([cairo-xcb], [use XCB surfaces for Cairo support])
 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
 OPTION_DEFAULT_OFF([imagemagick],[compile with ImageMagick image support])
 OPTION_DEFAULT_ON([native-image-api], [don't use native image APIs (GDI+ on Windows)])
-OPTION_DEFAULT_IFAVAILABLE([json], [compile with native JSON support])
 OPTION_DEFAULT_IFAVAILABLE([tree-sitter], [compile with tree-sitter])
 
 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
@@ -1216,7 +1215,6 @@ package will likely install on older systems but crash on startup.])
   passthrough="$passthrough --with-png=$with_png"
   passthrough="$passthrough --with-webp=$with_webp"
   passthrough="$passthrough --with-gif=$with_gif"
-  passthrough="$passthrough --with-json=$with_json"
   passthrough="$passthrough --with-jpeg=$with_jpeg"
   passthrough="$passthrough --with-xml2=$with_xml2"
   passthrough="$passthrough --with-sqlite3=$with_sqlite3"
@@ -1305,7 +1303,6 @@ if test "$ANDROID" = "yes"; then
     with_png=no
     with_webp=no
     with_gif=no
-    with_json=no
     with_jpeg=no
     with_xml2=no
     with_sqlite3=no
@@ -4005,27 +4002,6 @@ fi
 AC_SUBST([LIBSYSTEMD_LIBS])
 AC_SUBST([LIBSYSTEMD_CFLAGS])
 
-HAVE_JSON=no
-JSON_OBJ=
-
-if test "${with_json}" != no; then
-  EMACS_CHECK_MODULES([JSON], [jansson >= 2.7],
-    [HAVE_JSON=yes], [HAVE_JSON=no])
-  if test "${HAVE_JSON}" = yes; then
-    AC_DEFINE([HAVE_JSON], [1], [Define if using Jansson.])
-    JSON_OBJ=json.o
-  fi
-
-  # Windows loads libjansson dynamically
-  if test "${opsys}" = "mingw32"; then
-    JSON_LIBS=
-  fi
-fi
-
-AC_SUBST([JSON_LIBS])
-AC_SUBST([JSON_CFLAGS])
-AC_SUBST([JSON_OBJ])
-
 HAVE_TREE_SITTER=no
 TREE_SITTER_OBJ=
 NEED_DYNLIB=no
@@ -5470,11 +5446,6 @@ case $with_gnutls,$HAVE_GNUTLS in
   *) MISSING="$MISSING gnutls"
      WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-gnutls=ifavailable";;
 esac
-case $with_json,$HAVE_JSON in
-  no,* | ifavailable,* | *,yes) ;;
-  *) MISSING="$MISSING json"
-     WITH_IFAVAILABLE="$WITH_IFAVAILABLE --with-json=ifavailable";;
-esac
 case $with_tree_sitter,$HAVE_TREE_SITTER in
   no,* | ifavailable,* | *,yes) ;;
   *) MISSING="$MISSING tree-sitter"
@@ -7655,7 +7626,7 @@ Configured for '${canonical}'.
 optsep=
 emacs_config_features=
 for opt in ACL BE_APP CAIRO DBUS FREETYPE GCONF GIF GLIB GMP GNUTLS GPM GSETTINGS \
- HARFBUZZ IMAGEMAGICK JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 \
+ HARFBUZZ IMAGEMAGICK JPEG LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 \
  M17N_FLT MODULES NATIVE_COMP NOTIFY NS OLDXMENU PDUMPER PGTK PNG RSVG SECCOMP \
  SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER \
  UNEXEC WEBP X11 XAW3D XDBE XFT XIM XINPUT2 XPM XWIDGETS X_TOOLKIT \
@@ -7731,7 +7702,6 @@ AS_ECHO(["  Does Emacs use -lXaw3d?                                 ${HAVE_XAW3D
   Does Emacs use -lotf?                                   ${HAVE_LIBOTF}
   Does Emacs use -lxft?                                   ${HAVE_XFT}
   Does Emacs use -lsystemd?                               ${HAVE_LIBSYSTEMD}
-  Does Emacs use -ljansson?                               ${HAVE_JSON}
   Does Emacs use -ltree-sitter?                           ${HAVE_TREE_SITTER}
   Does Emacs use the GMP library?                         ${HAVE_GMP}
   Does Emacs directly use zlib?                           ${HAVE_ZLIB}