[newlib-cygwin/main] config: remove obsolete cloog.m4 autotools macros

https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3Dd5ce89c39a3=
e637e1cf35fcf7d0f39f4a4eedc19

commit d5ce89c39a3e637e1cf35fcf7d0f39f4a4eedc19
Author:     John Scott <jscott-VwIFZPTo/[email protected]>
AuthorDate: Fri Apr 10 04:17:55 2026 +0000
Commit:     Corinna Vinschen <[email protected]>
CommitDate: Fri Apr 10 12:06:41 2026 +0200

    config: remove obsolete cloog.m4 autotools macros
   =20
    GCC used to use the CLooG library to optionally enable some special opt=
imizations.
    However, it hasn't been used since commit 4a9bb2aac4da (2014-11-11) and=
 GCC removed this cloog.m4 file then.
    Newlib and Cygwin have never used CLooG, so this cruft can be obliterat=
ed to spare others from confuzzlement.

Diff:
---
 config/cloog.m4 | 152 ----------------------------------------------------=
----
 1 file changed, 152 deletions(-)

diff --git a/config/cloog.m4 b/config/cloog.m4
deleted file mode 100644
index 670cd652fcb2..000000000000
--- a/config/cloog.m4
+++ /dev/null
@@ -1,152 +0,0 @@
-# This file is part of GCC.
-#
-# GCC is free software; you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free
-# Software Foundation; either version 3, or (at your option) any later
-# version.
-#
-# GCC 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 General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.
-#
-# Contributed by Andreas Simbuerger <[email protected]>
-
-# CLOOG_INIT_FLAGS ()
-# -------------------------
-# Provide configure switches for CLooG support.
-# Initialize clooglibs/clooginc according to the user input.
-AC_DEFUN([CLOOG_INIT_FLAGS],
-[
-  AC_ARG_WITH([cloog-include],
-    [AS_HELP_STRING(
-      [--with-cloog-include=3DPATH],
-      [Specify directory for installed CLooG include files])])
-  AC_ARG_WITH([cloog-lib],
-    [AS_HELP_STRING(
-      [--with-cloog-lib=3DPATH],
-      [Specify the directory for the installed CLooG library])])
-
-  AC_ARG_ENABLE(cloog-version-check,
-    [AS_HELP_STRING(
-      [--disable-cloog-version-check],
-      [disable check for CLooG version])],
-    ENABLE_CLOOG_CHECK=3D$enableval,
-    ENABLE_CLOOG_CHECK=3Dyes)
- =20
-  # Initialize clooglibs and clooginc.
-  case $with_cloog in
-    no)
-      clooglibs=3D
-      clooginc=3D
-      ;;
-    "" | yes)
-      ;;
-    *)
-      clooglibs=3D"-L$with_cloog/lib"
-      clooginc=3D"-I$with_cloog/include"
-      ;;
-  esac
-  if test "x${with_cloog_include}" !=3D x ; then
-    clooginc=3D"-I$with_cloog_include"
-  fi
-  if test "x${with_cloog_lib}" !=3D x; then
-    clooglibs=3D"-L$with_cloog_lib"
-  fi
-  dnl If no --with-cloog flag was specified and there is in-tree CLooG
-  dnl source, set up flags to use that and skip any version tests
-  dnl as we cannot run them reliably before building CLooG
-  if test "x${clooginc}" =3D x && test "x${clooglibs}" =3D x \
-     && test -d ${srcdir}/cloog; then
-     clooglibs=3D'-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
-     clooginc=3D'-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include -I=
'${srcdir}'/cloog/include '
-    ENABLE_CLOOG_CHECK=3Dno
-    AC_MSG_WARN([using in-tree CLooG, disabling version check])
-  fi
-
-  clooginc=3D"-DCLOOG_INT_GMP ${clooginc}"
-  clooglibs=3D"${clooglibs} -lcloog-isl ${isllibs} -lisl"
-]
-)
-
-# CLOOG_REQUESTED (ACTION-IF-REQUESTED, ACTION-IF-NOT)
-# ----------------------------------------------------
-# Provide actions for failed CLooG detection.
-AC_DEFUN([CLOOG_REQUESTED],
-[
-  AC_REQUIRE([CLOOG_INIT_FLAGS])
-
-  if test "x${with_cloog}" =3D xno; then
-    $2
-  elif test "x${with_cloog}" !=3D x \
-    || test "x${with_cloog_include}" !=3D x \
-    || test "x${with_cloog_lib}" !=3D x ; then
-    $1
-  else
-    $2
-  fi
-]
-)
-
-# _CLOOG_CHECK_CT_PROG(MAJOR, MINOR, REVISION)
-# --------------------------------------------
-# Helper for verifying CLooG's compile time version.
-m4_define([_CLOOG_CHECK_CT_PROG],[AC_LANG_PROGRAM(
-  [#include "cloog/version.h"],
-  [#if CLOOG_VERSION_MAJOR !=3D $1 \
-    || CLOOG_VERSION_MINOR !=3D $2 \
-    || CLOOG_VERSION_REVISION < $3
-    choke me
-   #endif])])
-
-# CLOOG_CHECK_VERSION CLOOG_CHECK_VERSION (MAJOR, MINOR, REVISION)
-# ----------------------------------------------------------------
-# Test the found CLooG to be exact of version MAJOR.MINOR and at least
-# REVISION.
-AC_DEFUN([CLOOG_CHECK_VERSION],
-[
-  AC_REQUIRE([CLOOG_INIT_FLAGS])
-
-  if test "${ENABLE_CLOOG_CHECK}" =3D yes ; then
-    _cloog_saved_CFLAGS=3D$CFLAGS
-    _cloog_saved_LDFLAGS=3D$LDFLAGS
-
-    CFLAGS=3D"${_cloog_saved_CFLAGS} ${clooginc} ${islinc} ${gmpinc}"
-    LDFLAGS=3D"${_cloog_saved_LDFLAGS} ${clooglibs} ${isllibs} ${gmplib}"
-
-    AC_MSG_CHECKING([for version $1.$2.$3 of CLooG])
-    AC_COMPILE_IFELSE([_CLOOG_CHECK_CT_PROG($1,$2,$3)],
-	[gcc_cv_cloog=3Dyes],
-	[gcc_cv_cloog=3Dno])
-    AC_MSG_RESULT([$gcc_cv_cloog])
-
-    CFLAGS=3D$_cloog_saved_CFLAGS
-    LDFLAGS=3D$_cloog_saved_LDFLAGS
-  fi
-]
-)
-
-# CLOOG_IF_FAILED (ACTION-IF-FAILED)
-# ----------------------------------
-# Executes ACTION-IF-FAILED, if GRAPHITE was requested and
-# the checks failed.
-AC_DEFUN([CLOOG_IF_FAILED],
-[
-  CLOOG_REQUESTED([graphite_requested=3Dyes], [graphite_requested=3Dno])
- =20
-  if test "${gcc_cv_cloog}" =3D no ; then
-    clooglibs=3D
-    clooginc=3D
-  fi
-
-  if test "${graphite_requested}" =3D yes \
-    && test "x${clooglibs}" =3D x \
-    && test "x${clooginc}" =3D x ; then
-    $1
-  fi
-]
-)