diff --git a/src/plugins/aorai/configure.ac b/src/plugins/aorai/configure.ac
deleted file mode 100644
index 12d8e0c06f2eb77532aa8a6a3ca1ebc0b65e4c4f..0000000000000000000000000000000000000000
--- a/src/plugins/aorai/configure.ac
+++ /dev/null
@@ -1,50 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Aorai plug-in of Frama-C.                        #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#    INRIA (Institut National de Recherche en Informatique et en         #
-#           Automatique)                                                 #
-#    INSA  (Institut National des Sciences Appliquees)                   #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS],
-         [m4_include(FRAMAC_SHARE/configure.ac)]
-        )
-
-check_plugin(aorai,PLUGIN_RELATIVE_PATH(plugin_file),[support for Aorai plug-in],yes)
-
-plugin_use_external(aorai,ltltoba)
-
-if test "$ENABLE_AORAI" != "no"; then
-  # ltl2ba library
-  configure_tool([LTLTOBA],[ltl2ba],[ltl2ba not found.],no)
-fi
-
-check_plugin_dependencies
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/dive/configure.ac b/src/plugins/dive/configure.ac
deleted file mode 100644
index 915ba81d4170058fdeb67a1b8fe0609bf3f24045..0000000000000000000000000000000000000000
--- a/src/plugins/dive/configure.ac
+++ /dev/null
@@ -1,51 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(dive,PLUGIN_RELATIVE_PATH(plugin_file),
-             [support for Dive plug-in],yes)
-
-# Plug-in dependencies
-######################
-
-plugin_require(dive,eva)
-plugin_require(dive,studia)
-plugin_require(dive,server)
-#plugin_use(dive,usable_plugin_but_not_mandatory)
-
-check_plugin_dependencies
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/e-acsl/configure.ac b/src/plugins/e-acsl/configure.ac
deleted file mode 100644
index 24bceba8839c8bf604345cfbcb394d803b016496..0000000000000000000000000000000000000000
--- a/src/plugins/e-acsl/configure.ac
+++ /dev/null
@@ -1,101 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of the Frama-C's E-ACSL plug-in.                    #
-#                                                                        #
-#  Copyright (C) 2012-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-########################################
-# E-ACSL as a standard Frama-C plug-in #
-########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(e_acsl,PLUGIN_RELATIVE_PATH(plugin_file),
-             [support for E-ACSL plug-in],yes)
-
-plugin_require(e_acsl,rtegen)
-
-# E-ACSL only works on Linux as of now. Disable it on Mac OS and Windows
-AC_CHECK_PROG(UNAME,uname,uname,no)
-
-if test "$UNAME" = "no"; then
-  plugin_disable(e_acsl,[Not on a POSIX platform.])
-fi
-
-HOST_OS=$($UNAME -s)
-case $HOST_OS in
-Darwin | Linux | DragonFly | FreeBSD | NetBSD | OpenBSD)
-# BSDs haven't really be tested, but it should at least compile fine
-;;
-*)
-  plugin_disable(e_acsl,[unsupported system $HOST_OS])
-;;
-esac
-
-check_plugin_dependencies
-
-###############################
-# C specific stuff for E-ACSL #
-###############################
-
-MAY_RUN_TESTS=yes
-
-# C compiler and stdio.h
-#########################
-
-AC_CHECK_HEADERS([stdio.h],[HAVE_STDIO_H=yes],)
-
-# not sure it can actually happen:
-# looks like configure stops on error if no C compiler detected
-if test -z $HAVE_STDIO_H; then
-  MAY_RUN_TESTS=no
-  AC_MSG_WARN([stdio.h missing: non-regression tests unavailable.])
-fi
-
-# Doxygen
-#########
-
-AC_CHECK_PROG(DOXYGEN,doxygen,doxygen,no)
-AC_CHECK_PROG(HAVE_DOT,dot,yes,no)
-AC_OUTPUT(PLUGIN_RELATIVE_PATH(doc/doxygen/doxygen.cfg), [  ])
-
-#######################
-# Generating Makefile #
-#######################
-
-AC_SUBST(MAY_RUN_TESTS)
-
-write_plugin_config(Makefile)
-
-###############################
-# Configure contrib libraries #
-###############################
-
-m4_ifndef([plugin_dir], [
-  m4_define([plugin_dir],[./])
-])
diff --git a/src/plugins/instantiate/configure.ac b/src/plugins/instantiate/configure.ac
deleted file mode 100644
index 13fce7ac2932ff2e52aa0c32318931a746db7388..0000000000000000000000000000000000000000
--- a/src/plugins/instantiate/configure.ac
+++ /dev/null
@@ -1,45 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-##########################################
-# Instantiate plugin                     #
-##########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(instantiate,PLUGIN_RELATIVE_PATH(plugin_file),
-	     [support for instantiate plug-in],yes)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/loop_analysis/configure.ac b/src/plugins/loop_analysis/configure.ac
deleted file mode 100644
index 3ec5f39ac30d7cd894ecf19464720d2383d98509..0000000000000000000000000000000000000000
--- a/src/plugins/loop_analysis/configure.ac
+++ /dev/null
@@ -1,46 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-##############################################
-# LoopAnalysis as a standard Frama-C plug-in #
-##############################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-          [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(loop_analysis,PLUGIN_RELATIVE_PATH(plugin_file),
-             [support for loop analysis plug-in],yes)
-plugin_require(loop_analysis,eva)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/markdown-report/configure.ac b/src/plugins/markdown-report/configure.ac
deleted file mode 100644
index 6d1e6edfecbf9c326918ca39e4065703278f7e2a..0000000000000000000000000000000000000000
--- a/src/plugins/markdown-report/configure.ac
+++ /dev/null
@@ -1,48 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS],
-         [m4_include(FRAMAC_SHARE/configure.ac)]
-        )
-
-check_plugin(mdr,PLUGIN_RELATIVE_PATH(plugin_file),[Markdown/SARIF report plug-in],yes)
-
-plugin_use(mdr,eva)
-
-plugin_require_pkg(mdr,ppx_deriving)
-plugin_require_pkg(mdr,ppx_deriving_yojson)
-
-configure_pkg(ppx_deriving,[package ppx_deriving not found])
-configure_pkg(ppx_deriving_yojson,[package ppx_deriving_yojson not found])
-
-check_plugin_dependencies
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/nonterm/configure.ac b/src/plugins/nonterm/configure.ac
deleted file mode 100644
index 03b27b7c9e2d2bb0aeb399e6b39a24dc1807c641..0000000000000000000000000000000000000000
--- a/src/plugins/nonterm/configure.ac
+++ /dev/null
@@ -1,47 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-########################################
-# Nonterm as a standard Frama-C plug-in #
-########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-          [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(nonterm,PLUGIN_RELATIVE_PATH(plugin_file),
-             [support for nonterm plug-in],yes)
-
-plugin_require(nonterm,eva)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/obfuscator/configure.ac b/src/plugins/obfuscator/configure.ac
deleted file mode 100644
index 4633284b2849a41cea4784feb39978af568aa1ac..0000000000000000000000000000000000000000
--- a/src/plugins/obfuscator/configure.ac
+++ /dev/null
@@ -1,38 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS],
-         [m4_include(FRAMAC_SHARE/configure.ac)]
-        )
-
-check_plugin(obfuscator,PLUGIN_RELATIVE_PATH(plugin_file),[support for Obfuscator plug-in],yes)
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/report/configure.ac b/src/plugins/report/configure.ac
deleted file mode 100644
index ae01a0e634c4c4ea265c0f29e4977af108783f6e..0000000000000000000000000000000000000000
--- a/src/plugins/report/configure.ac
+++ /dev/null
@@ -1,45 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-########################################
-# E-ACSL as a standard Frama-C plug-in #
-########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(report,PLUGIN_RELATIVE_PATH(plugin_file),
-	     [support for report plug-in],yes)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/security_slicing/configure.ac b/src/plugins/security_slicing/configure.ac
deleted file mode 100644
index a00568fe1900ae6abe667a78c135421e408989a9..0000000000000000000000000000000000000000
--- a/src/plugins/security_slicing/configure.ac
+++ /dev/null
@@ -1,43 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS],[m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(security_slicing,PLUGIN_RELATIVE_PATH(plugin_file),
-	     [support for Security_slicing plug-in],yes)
-
-plugin_require(security_slicing,slicing)
-plugin_require(security_slicing,eva)
-plugin_require(security_slicing,pdg)
-plugin_require(security_slicing,gui)
-check_plugin_dependencies
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/server/configure.ac b/src/plugins/server/configure.ac
deleted file mode 100644
index f7b4777282cf87fd540b6cc707e15a3c1e7d5a8f..0000000000000000000000000000000000000000
--- a/src/plugins/server/configure.ac
+++ /dev/null
@@ -1,65 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-########################################
-# Server as a standard Frama-C plug-in #
-########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(server,PLUGIN_RELATIVE_PATH(plugin_file),[Server plug-in],yes)
-
-########################################
-# Server ZMQ Configuration             #
-########################################
-
-AC_ARG_ENABLE(
-  server-zmq,
-  [  --enable-server-zmq     Server ZeroMQ support (default: yes)],
-  SERVER_ZMQ=$enableval,
-  SERVER_ZMQ=yes
-)
-
-if test "$SERVER_ZMQ" = "yes" ;
-then
-        configure_pkg([zmq],
-                      [Server support for ZeroMQ disabled (try 'opam install zmq').])
-        plugin_use_pkg(server,zmq)
-        SERVER_ZMQ=$HAS_OCAML_ZMQ
-fi
-
-AC_SUBST(SERVER_ZMQ)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/studia/configure.ac b/src/plugins/studia/configure.ac
deleted file mode 100644
index f28dc662bfb701502ef0a91e830b004fe16f8939..0000000000000000000000000000000000000000
--- a/src/plugins/studia/configure.ac
+++ /dev/null
@@ -1,48 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-########################################
-# Studia as a standard Frama-C plug-in #
-########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-          [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(studia,PLUGIN_RELATIVE_PATH(plugin_file),
-             [support for studia plug-in],yes)
-
-plugin_require(studia,eva)
-plugin_require(studia,server)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/variadic/configure.ac b/src/plugins/variadic/configure.ac
deleted file mode 100644
index 56d3db96b4895d7f2760a263bd358a9cfa03923d..0000000000000000000000000000000000000000
--- a/src/plugins/variadic/configure.ac
+++ /dev/null
@@ -1,45 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of Frama-C.                                         #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat à l'énergie atomique et aux énergies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-##########################################
-# Variadic as a standard Frama-C plug-in #
-##########################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
-
-check_plugin(variadic,PLUGIN_RELATIVE_PATH(plugin_file),
-	     [support for variadic plug-in],yes)
-
-#######################
-# Generating Makefile #
-#######################
-
-write_plugin_config(Makefile)
diff --git a/src/plugins/wp/configure.ac b/src/plugins/wp/configure.ac
deleted file mode 100644
index 010a5beef14a3a671c0bdc352dbf5ae391bf7659..0000000000000000000000000000000000000000
--- a/src/plugins/wp/configure.ac
+++ /dev/null
@@ -1,72 +0,0 @@
-##########################################################################
-#                                                                        #
-#  This file is part of WP plug-in of Frama-C.                           #
-#                                                                        #
-#  Copyright (C) 2007-2022                                               #
-#    CEA (Commissariat a l'energie atomique et aux energies              #
-#         alternatives)                                                  #
-#                                                                        #
-#  you can redistribute it and/or modify it under the terms of the GNU   #
-#  Lesser General Public License as published by the Free Software       #
-#  Foundation, version 2.1.                                              #
-#                                                                        #
-#  It is distributed in the hope that it will be useful,                 #
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
-#  GNU Lesser General Public License for more details.                   #
-#                                                                        #
-#  See the GNU Lesser General Public License version 2.1                 #
-#  for more details (enclosed in the file licenses/LGPLv2.1).            #
-#                                                                        #
-##########################################################################
-
-m4_define([plugin_file],Makefile.in)
-
-m4_define([FRAMAC_SHARE_ENV],
-          [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
-
-m4_define([FRAMAC_SHARE],
-	  [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
-                                     [m4_esyscmd(frama-c -print-path)])])
-
-m4_ifndef([FRAMAC_M4_MACROS],
-         [m4_include(FRAMAC_SHARE/configure.ac)]
-        )
-
-check_plugin(wp,PLUGIN_RELATIVE_PATH(plugin_file),[WP plug-in],yes,yes)
-
-plugin_require(wp,qed)
-plugin_require(wp,rtegen)
-plugin_use(wp,gui)
-
-# Why3 API dependency
-######################
-
-configure_pkg(why3,[package why3 not found])
-
-plugin_require_pkg(wp,why3)
-
-check_plugin_dependencies
-
-if test "$HAS_OCAML_WHY3" = "yes"; then
-AC_MSG_CHECKING(why3 version)
-WHY3VERSION=`ocamlfind query -format %v why3 | tr -d '\\r\\n'`
-case $WHY3VERSION in
-      "")
-        AC_MSG_RESULT([not found!])
-        plugin_disable(wp,[why3 not found])
-        ;;
-      0.* | 1.[[01234]].*)
-        AC_MSG_RESULT([found $WHY3VERSION: requires 1.5.0+])
-        plugin_disable(wp,[non-supported why3 $WHY3VERSION])
-        ;;
-      1.5.*)
-        AC_MSG_RESULT([found $WHY3VERSION: ok])
-        ;;
-      *)
-        AC_MSG_RESULT([found $WHY3VERSION: might work (should be 1.5.0+)])
-        ;;
-esac
-fi
-
-write_plugin_config(Makefile)