From 72449fa4521b2514a0b426713e21c4a605db440d Mon Sep 17 00:00:00 2001
From: Michele Calgaro <michele.calgaro@yahoo.it>
Date: Sun, 1 Feb 2026 18:22:38 +0900
Subject: Remove support for Irix, which is discontinued and does not provide a
 c++17 complaint compiler

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
---
 acinclude.m4 | 179 +----------------------------------------------------------
 1 file changed, 2 insertions(+), 177 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 19bf76b6..9e5c7d2d 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -900,8 +900,6 @@ dnl Solaris has a similar problem. AC_PATH_X_XMKMF forces x_includes to
 dnl /usr/openwin/include, which doesn't work. /usr/include does work, so
 dnl x_includes should be left alone.
 case "$host" in
-mips-sgi-irix6*)
-  ;;
 *-*-solaris*)
   ;;
 *)
@@ -3274,7 +3272,6 @@ AC_DEFUN([AC_CHECK_COMPILERS],
   AC_SUBST(USE_RTTI)
 
   case "$host" in
-      *-*-irix*)  test "$GXX" = yes && CXXFLAGS="-D_LANGUAGE_C_PLUS_PLUS -D__LANGUAGE_C_PLUS_PLUS $CXXFLAGS" ;;
       *-*-sysv4.2uw*) CXXFLAGS="-D_UNIXWARE $CXXFLAGS";;
       *-*-sysv5uw7*) CXXFLAGS="-D_UNIXWARE7 $CXXFLAGS";;
       *-*-solaris*) 
@@ -6370,39 +6367,6 @@ test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
 # Some flags need to be propagated to the compiler or linker for good
 # libtool support.
 case $host in
-*-*-irix6*)
-  # Find out which ABI we are using.
-  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-   if test "$lt_cv_prog_gnu_ld" = yes; then
-    case `/usr/bin/file conftest.$ac_objext` in
-    *32-bit*)
-      LD="${LD-ld} -melf32bsmip"
-      ;;
-    *N32*)
-      LD="${LD-ld} -melf32bmipn32"
-      ;;
-    *64-bit*)
-      LD="${LD-ld} -melf64bmip"
-      ;;
-    esac
-   else
-    case `/usr/bin/file conftest.$ac_objext` in
-    *32-bit*)
-      LD="${LD-ld} -32"
-      ;;
-    *N32*)
-      LD="${LD-ld} -n32"
-      ;;
-    *64-bit*)
-      LD="${LD-ld} -64"
-      ;;
-    esac
-   fi
-  fi
-  rm -rf conftest*
-  ;;
-
 x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
@@ -7216,43 +7180,6 @@ gnu*)
   hardcode_into_libs=yes
   ;;
 
-irix5* | irix6* | nonstopux*)
-  case $host_os in
-    nonstopux*) version_type=nonstopux ;;
-    *)
-	if test "$lt_cv_prog_gnu_ld" = yes; then
-		version_type=linux
-	else
-		version_type=irix
-	fi ;;
-  esac
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
-  case $host_os in
-  irix5* | nonstopux*)
-    libsuff= shlibsuff=
-    ;;
-  *)
-    case $LD in # libtool.m4 will add one of these switches to LD
-    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
-      libsuff= shlibsuff= libmagic=32-bit;;
-    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
-      libsuff=32 shlibsuff=N32 libmagic=N32;;
-    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
-      libsuff=64 shlibsuff=64 libmagic=64-bit;;
-    *) libsuff= shlibsuff= libmagic=never-match;;
-    esac
-    ;;
-  esac
-  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
-  shlibpath_overrides_runpath=no
-  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
-  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
-  hardcode_into_libs=yes
-  ;;
-
 # No shared lib support for Linux oldld, aout, or coff.
 linux*oldld* | linux*aout* | linux*coff*)
   dynamic_linker=no
@@ -7966,27 +7893,6 @@ gnu*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-irix5* | irix6* | nonstopux*)
-  case $host_os in
-  irix5* | nonstopux*)
-    # this will be overridden with pass_all, but let us keep it just in case
-    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
-    ;;
-  *)
-    case $LD in
-    *-32|*"-32 ") libmagic=32-bit;;
-    *-n32|*"-n32 ") libmagic=N32;;
-    *-64|*"-64 ") libmagic=64-bit;;
-    *) libmagic=never-match;;
-    esac
-    # this will be overridden with pass_all, but let us keep it just in case
-    lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[[1234]] dynamic lib MIPS - version 1"
-    ;;
-  esac
-  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
 # This must be Linux ELF.
 linux*)
   case $host_cpu in
@@ -8730,32 +8636,6 @@ case $host_os in
     ;;
   gnu*)
     ;;
-  irix5* | irix6*)
-    case $cc_basename in
-      CC)
-	# SGI C++
-	_LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $compiler_flags $predep_objects $libobjs $deplibs $postdep_objects -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
-
-	# Archives containing C++ object files must be created using
-	# "CC -ar", where "CC" is the IRIX C++ compiler.  This is
-	# necessary to make sure instantiated templates are included
-	# in the archive.
-	_LT_AC_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
-	;;
-      *)
-	if test "$GXX" = yes; then
-	  if test "$with_gnu_ld" = no; then
-	    _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $compiler_flags $predep_objects $libobjs $deplibs $postdep_objects ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
-	  else
-	    _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $compiler_flags $predep_objects $libobjs $deplibs $postdep_objects ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -o $lib'
-	  fi
-	fi
-	_LT_AC_TAGVAR(link_all_deplibs, $1)=yes
-	;;
-    esac
-    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-    _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
-    ;;
   linux*)
     case $cc_basename in
       KCC)
@@ -8960,19 +8840,6 @@ case $host_os in
   sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[[78]]* | unixware7*)
     _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
     ;;
-  tandem*)
-    case $cc_basename in
-      NCC)
-	# NonStop-UX NCC 3.20
-	# FIXME: insert proper C++ library support
-	_LT_AC_TAGVAR(ld_shlibs, $1)=no
-	;;
-      *)
-	# FIXME: insert proper C++ library support
-	_LT_AC_TAGVAR(ld_shlibs, $1)=no
-	;;
-    esac
-    ;;
   vxworks*)
     # FIXME: insert proper C++ library support
     _LT_AC_TAGVAR(ld_shlibs, $1)=no
@@ -9878,9 +9745,6 @@ aix*)
 cygwin* | mingw* | pw32*)
   symcode='[[ABCDGISTW]]'
   ;;
-irix* | nonstopux*)
-  symcode='[[BCDEGRST]]'
-  ;;
 solaris* | sysv5*)
   symcode='[[BDT]]'
   ;;
@@ -10046,7 +9910,7 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       # like `-m68040'.
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
-    beos* | cygwin* | irix5* | irix6* | nonstopux*)
+    beos* | cygwin*)
       # PIC is the default for these OSes.
       ;;
     mingw* | os2* | pw32*)
@@ -10094,17 +9958,6 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       freebsd* | kfreebsd*-gnu)
 	# FreeBSD uses GNU C++
 	;;
-      irix5* | irix6* | nonstopux*)
-	case $cc_basename in
-	  CC)
-	    _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-	    _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-	    # CC pic flag -KPIC is the default.
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
       linux*)
 	case $cc_basename in
 	  KCC)
@@ -10186,16 +10039,6 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
 	    ;;
 	esac
 	;;
-      tandem*)
-	case $cc_basename in
-	  NCC)
-	    # NonStop-UX NCC 3.20
-	    _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-	    ;;
-	  *)
-	    ;;
-	esac
-	;;
       unixware*)
 	;;
       vxworks*)
@@ -10227,7 +10070,7 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
 
-    beos* | cygwin* | irix5* | irix6* | nonstopux*)
+    beos* | cygwin*)
       # PIC is the default for these OSes.
       ;;
 
@@ -10279,12 +10122,6 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;
 
-    irix5* | irix6* | nonstopux*)
-      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
-      # PIC (with -KPIC) is the default.
-      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
-      ;;
-
     newsos6)
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
@@ -10816,18 +10653,6 @@ EOF
       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
       ;;
 
-    irix5* | irix6* | nonstopux*)
-      if test "$GCC" = yes; then
-	_LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $compiler_flags $libobjs $deplibs ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-      else
-	_LT_AC_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
-	_LT_AC_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
-      fi
-      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
-      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
-      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
-      ;;
-
     netbsd*)
       if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 	_LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
-- 
cgit v1.2.3

