Remove support for Irix, which is discontinued and does not provide a c++17 complaint compilerdrop/irix-support

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

19 files changed, 13 insertions, 817 deletions

diff --git a/src/3rdparty/libmng/acinclude.m4 b/src/3rdparty/libmng/acinclude.m4
index f3cb3c95c..c2baeb453 100644
--- a/src/3rdparty/libmng/acinclude.m4
+++ b/src/3rdparty/libmng/acinclude.m4
@@ -43,8 +43,8 @@ AC_DEFUN(AC_SYS_LARGEFILE,
        ac_cv_sys_largefile_CC,
        [ac_cv_sys_largefile_CC=no
         if test "$GCC" != yes; then
-	  # IRIX 6.2 and later do not support large files by default,
-	  # so use the C compiler's -n32 option if that helps.
+	  # If the OS does not support large files by default,
+	  # use the C compiler's -n32 option if that helps.
 	  AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , ,
 	    [ac_save_CC="$CC"
 	     CC="$CC -n32"
diff --git a/src/3rdparty/libmng/aclocal.m4 b/src/3rdparty/libmng/aclocal.m4
index a0f9e41af..552f9a883 100644
--- a/src/3rdparty/libmng/aclocal.m4
+++ b/src/3rdparty/libmng/aclocal.m4
@@ -55,8 +55,8 @@ AC_DEFUN(AC_SYS_LARGEFILE,
        ac_cv_sys_largefile_CC,
        [ac_cv_sys_largefile_CC=no
         if test "$GCC" != yes; then
-	  # IRIX 6.2 and later do not support large files by default,
-	  # so use the C compiler's -n32 option if that helps.
+	  # If the OS does not support large files by default,
+	  # use the C compiler's -n32 option if that helps.
 	  AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES, , ,
 	    [ac_save_CC="$CC"
 	     CC="$CC -n32"
@@ -369,25 +369,6 @@ 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
-    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
-  rm -rf conftest*
-  ;;
-
 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
 [*-*-cygwin* | *-*-mingw* | *-*-pw32*)
   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
@@ -487,9 +468,6 @@ aix*)
 cygwin* | mingw* | pw32*)
   symcode='[[ABCDGISTW]]'
   ;;
-irix*)
-  symcode='[[BCDEGRST]]'
-  ;;
 solaris* | sysv5*)
   symcode='[[BDT]]'
   ;;
@@ -1126,8 +1104,8 @@ AC_CACHE_VAL(lt_cv_prog_cc_pic,
       # like `-m68040'.
       lt_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
       ;;
-    beos* | irix5* | irix6*)
-      # PIC is the default for these OSes.
+    beos*)
+      # PIC is the default for this OS
       ;;
     darwin* | rhapsody*)
       # PIC is the default on this platform
@@ -1162,12 +1140,6 @@ AC_CACHE_VAL(lt_cv_prog_cc_pic,
       fi
       ;;
 
-    irix5* | irix6*)
-      lt_cv_prog_cc_wl='-Wl,'
-      lt_cv_prog_cc_static='-non_shared'
-      # PIC (with -KPIC) is the default.
-      ;;
-
     cygwin* | mingw* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
@@ -1831,17 +1803,6 @@ else
     hardcode_shlibpath_var=no
     ;;
 
-  irix5* | irix6*)
-    if test "$GCC" = yes; then
-      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-    else
-      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
-    fi
-    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-    hardcode_libdir_separator=:
-    link_all_deplibs=yes
-    ;;
-
   netbsd*)
     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
@@ -2244,31 +2205,6 @@ gnu*)
   hardcode_into_libs=yes
   ;;
 
-irix5* | irix6*)
-  version_type=irix
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}.so$major'
-  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so $libname.so'
-  case $host_os in
-  irix5*)
-    libsuff= shlibsuff=
-    ;;
-  *)
-    case $LD in # libtool.m4 will add one of these switches to LD
-    *-32|*"-32 ") libsuff= shlibsuff= libmagic=32-bit;;
-    *-n32|*"-n32 ") libsuff=32 shlibsuff=N32 libmagic=N32;;
-    *-64|*"-64 ") libsuff=64 shlibsuff=64 libmagic=64-bit;;
-    *) libsuff= shlibsuff= libmagic=never-match;;
-    esac
-    ;;
-  esac
-  shlibpath_var=LD_LIBRARY${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}"
-  ;;
-
 # No shared lib support for Linux oldld, aout, or coff.
 linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
   dynamic_linker=no
@@ -3419,27 +3355,6 @@ gnu*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-irix5* | irix6*)
-  case $host_os in
-  irix5*)
-    # 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-gnu*)
   case $host_cpu in
diff --git a/src/3rdparty/libmng/config.guess b/src/3rdparty/libmng/config.guess
index 1c66e983f..d23eba0a7 100755
--- a/src/3rdparty/libmng/config.guess
+++ b/src/3rdparty/libmng/config.guess
@@ -196,9 +196,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     pmax:OpenBSD:*:*)
 	echo mipsel-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
-    sgi:OpenBSD:*:*)
-	echo mips-unknown-openbsd${UNAME_RELEASE}
-	exit 0 ;;
     wgrisc:OpenBSD:*:*)
 	echo mipsel-unknown-openbsd${UNAME_RELEASE}
 	exit 0 ;;
@@ -380,9 +377,6 @@ EOF
     Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
 	echo m68k-tektronix-bsd
 	exit 0 ;;
-    *:IRIX*:*:*)
-	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
-	exit 0 ;;
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
 	echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
 	exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
@@ -877,9 +871,6 @@ EOF
     NSR-[KW]:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit 0 ;;
-    *:NonStop-UX:*:*)
-	echo mips-compaq-nonstopux
-	exit 0 ;;
     BS2000:POSIX*:*:*)
 	echo bs2000-siemens-sysv
 	exit 0 ;;
diff --git a/src/3rdparty/libmng/config.sub b/src/3rdparty/libmng/config.sub
index c23cdec33..fb9dfc911 100755
--- a/src/3rdparty/libmng/config.sub
+++ b/src/3rdparty/libmng/config.sub
@@ -137,7 +137,7 @@ case $os in
 	-sun*os*)
 		# Prevent following clause from handling this invalid input.
 		;;
-	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sony* | \
 	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
 	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
@@ -534,16 +534,6 @@ case $basic_machine in
 		basic_machine=i386-unknown
 		os=-vsta
 		;;
-	iris | iris4d)
-		basic_machine=mips-sgi
-		case $os in
-		    -irix*)
-			;;
-		    *)
-			os=-irix4
-			;;
-		esac
-		;;
 	isi68 | isi)
 		basic_machine=m68k-isi
 		os=-sysv
@@ -657,10 +647,6 @@ case $basic_machine in
 		basic_machine=i960-intel
 		os=-mon960
 		;;
-	nonstopux)
-		basic_machine=mips-compaq
-		os=-nonstopux
-		;;
 	np1)
 		basic_machine=np1-gould
 		;;
@@ -1019,7 +1005,7 @@ case $os in
 	# The portable systems comes first.
 	# Each alternative MUST END IN A *, to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
-	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* \
 	      | -*vms* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
 	      | -unos* | -luna* | -solaris* | -sym* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
@@ -1034,7 +1020,7 @@ case $os in
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
-	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -openstep* | -oskit* | -conix* | -pw32* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos*)
 	# Remember, each alternative MUST END IN *, to match a version number.
@@ -1251,9 +1237,6 @@ case $basic_machine in
 	*-encore)
 		os=-bsd
 		;;
-        *-sgi)
-		os=-irix
-		;;
         *-siemens)
 		os=-sysv4
 		;;
diff --git a/src/3rdparty/libmng/configure b/src/3rdparty/libmng/configure
index 8cc3b336b..7b1fe034d 100755
--- a/src/3rdparty/libmng/configure
+++ b/src/3rdparty/libmng/configure
@@ -733,7 +733,6 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 # incompatible versions:
 # SysV /etc/install, /usr/sbin/install
 # SunOS /usr/etc/install
-# IRIX /sbin/install
 # AIX /bin/install
 # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
@@ -1976,27 +1975,6 @@ gnu*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-irix5* | irix6*)
-  case $host_os in
-  irix5*)
-    # 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-gnu*)
   case $host_cpu in
@@ -2169,9 +2147,6 @@ aix*)
 cygwin* | mingw* | pw32*)
   symcode='[ABCDGISTW]'
   ;;
-irix*)
-  symcode='[BCDEGRST]'
-  ;;
 solaris* | sysv5*)
   symcode='[BDT]'
   ;;
@@ -2638,29 +2613,6 @@ fi
 
 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 $host in
-*-*-irix6*)
-  # Find out which ABI we are using.
-  echo '#line 2676 "configure"' > conftest.$ac_ext
-  if { (eval echo configure:2677: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-    case `/usr/bin/file conftest.$ac_objext` in
-    *32-bit*)
-      LD="${LD-ld} -32"
-      ;;
-    *N32*)
-      LD="${LD-ld} -n32"
-      ;;
-    *64-bit*)
-      LD="${LD-ld} -64"
-      ;;
-    esac
-  fi
-  rm -rf conftest*
-  ;;
-esac
-
 # Sed substitution that helps us do robust quoting.  It backslashifies
 # metacharacters that are still active within double-quoted strings.
 Xsed='sed -e s/^X//'
@@ -2810,8 +2762,8 @@ else
       # like `-m68040'.
       lt_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
       ;;
-    beos* | irix5* | irix6*)
-      # PIC is the default for these OSes.
+    beos*)
+      # PIC is the default for this OS
       ;;
     darwin* | rhapsody*)
       # PIC is the default on this platform
@@ -2846,12 +2798,6 @@ else
       fi
       ;;
 
-    irix5* | irix6*)
-      lt_cv_prog_cc_wl='-Wl,'
-      lt_cv_prog_cc_static='-non_shared'
-      # PIC (with -KPIC) is the default.
-      ;;
-
     cygwin* | mingw* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
@@ -3600,17 +3546,6 @@ else
     hardcode_shlibpath_var=no
     ;;
 
-  irix5* | irix6*)
-    if test "$GCC" = yes; then
-      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
-    else
-      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
-    fi
-    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
-    hardcode_libdir_separator=:
-    link_all_deplibs=yes
-    ;;
-
   netbsd*)
     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
@@ -4016,31 +3951,6 @@ gnu*)
   hardcode_into_libs=yes
   ;;
 
-irix5* | irix6*)
-  version_type=irix
-  need_lib_prefix=no
-  need_version=no
-  soname_spec='${libname}${release}.so$major'
-  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so $libname.so'
-  case $host_os in
-  irix5*)
-    libsuff= shlibsuff=
-    ;;
-  *)
-    case $LD in # libtool.m4 will add one of these switches to LD
-    *-32|*"-32 ") libsuff= shlibsuff= libmagic=32-bit;;
-    *-n32|*"-n32 ") libsuff=32 shlibsuff=N32 libmagic=N32;;
-    *-64|*"-64 ") libsuff=64 shlibsuff=64 libmagic=64-bit;;
-    *) libsuff= shlibsuff= libmagic=never-match;;
-    esac
-    ;;
-  esac
-  shlibpath_var=LD_LIBRARY${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${libsuff}"
-  ;;
-
 # No shared lib support for Linux oldld, aout, or coff.
 linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
   dynamic_linker=no
@@ -5357,7 +5267,6 @@ LIBTOOL='$(SHELL) $(top_builddir)/libtool'
 # incompatible versions:
 # SysV /etc/install, /usr/sbin/install
 # SunOS /usr/etc/install
-# IRIX /sbin/install
 # AIX /bin/install
 # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
diff --git a/src/3rdparty/libmng/ltmain.sh b/src/3rdparty/libmng/ltmain.sh
index 244554861..45e445b74 100644
--- a/src/3rdparty/libmng/ltmain.sh
+++ b/src/3rdparty/libmng/ltmain.sh
@@ -988,15 +988,7 @@ compiler."
 	continue
 	;;
 
-      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
-      # so, if we see these flags be careful not to treat them like -L
       -L[A-Z][A-Z]*:*)
-	case $with_gcc/$host in
-	no/*-*-irix*)
-	  compile_command="$compile_command $arg"
-	  finalize_command="$finalize_command $arg"
-	  ;;
-	esac
 	continue
 	;;
 
@@ -2273,23 +2265,6 @@ compiler."
 	  versuffix=".$current";
 	  ;;
 
-	irix)
-	  major=`expr $current - $age + 1`
-	  verstring="sgi$major.$revision"
-
-	  # Add in all the interfaces that we are compatible with.
-	  loop=$revision
-	  while test "$loop" -ne 0; do
-	    iface=`expr $revision - $loop`
-	    loop=`expr $loop - 1`
-	    verstring="sgi$major.$iface:$verstring"
-	  done
-
-	  # Before this point, $major must not contain `.'.
-	  major=.$major
-	  versuffix="$major.$revision"
-	  ;;
-
 	linux)
 	  major=.`expr $current - $age`
 	  versuffix="$major.$age.$revision"
diff --git a/src/3rdparty/libmng/missing b/src/3rdparty/libmng/missing
index d46f79f64..0b54a0e07 100755
--- a/src/3rdparty/libmng/missing
+++ b/src/3rdparty/libmng/missing
@@ -173,7 +173,7 @@ WARNING: \`$1' is missing on your system.  You should only need it if
          you modified a \`.texi' or \`.texinfo' file, or any other file
          indirectly affecting the aspect of the manual.  The spurious
          call might also be the consequence of using a buggy \`make' (AIX,
-         DU, IRIX).  You might want to install the \`Texinfo' package or
+         DU).  You might want to install the \`Texinfo' package or
          the \`GNU make' package.  Grab either from any GNU archive site."
     file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
     if test -z "$file"; then
diff --git a/src/3rdparty/libpng/INSTALL b/src/3rdparty/libpng/INSTALL
index b4437d22a..90325f1ff 100644
--- a/src/3rdparty/libpng/INSTALL
+++ b/src/3rdparty/libpng/INSTALL
@@ -83,8 +83,6 @@ include
  makefile.netbsd   =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
  makefile.ne0bsd  =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.so
  makefile.openbsd  =>  OpenBSD makefile
- makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.5)
  makefile.sunos    =>  Sun makefile
  makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.5)
  makefile.so9      =>  Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.5)
diff --git a/src/3rdparty/libpng/README b/src/3rdparty/libpng/README
index 18e148fe5..0a4a9d246 100644
--- a/src/3rdparty/libpng/README
+++ b/src/3rdparty/libpng/README
@@ -205,8 +205,6 @@ Files in this distribution:
        makefile.netbsd  =>  NetBSD/cc makefile, PNGGCCRD, makes libpng.so.
        makefile.ne0bsd =>  NetBSD/cc makefile, PNGGCCRD, makes libpng0.so
        makefile.openbsd =>  OpenBSD makefile
-       makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.5)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
                             (gcc, creates libpng12.so.0.1.2.5)
@@ -241,8 +239,6 @@ Files in this distribution:
        makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
                             libpng12.so.0m.1.2.5, uses assembler code
                             tuned for Intel MMX platform)
-       makefile.sgi     =>  Silicon Graphics (cc, creates libpng12m.so)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12m.so)
 
 Good luck, and happy coding.
 
diff --git a/src/3rdparty/libpng/scripts/makefile.sggcc b/src/3rdparty/libpng/scripts/makefile.sggcc
deleted file mode 100644
index 082de1b89..000000000
--- a/src/3rdparty/libpng/scripts/makefile.sggcc
+++ /dev/null
@@ -1,211 +0,0 @@
-# makefile for libpng.a and libpng12.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-# For conditions of distribution and use, see copyright notice in png.h
-
-# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
-# Prefix must be a full pathname.
-
-prefix=/usr/local
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib32
-#ZLIBINC=/usr/local/include
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-LIBNAME=libpng12
-PNGMAJ = 0
-PNGMIN = 1.2.5
-PNGVER = $(PNGMAJ).$(PNGMIN)
-CC=gcc
-
-# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
-# See "man abi".  zlib must be built with the same ABI.
-ABI=
-
-WARNMORE= # -g -DPNG_DEBUG=5
-CFLAGS=$(ABI) -I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32
-LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
-  -set_version sgi$(PNGMAJ).0
-LDLEGACY=cc $(ABI) -shared -soname libpng.so.3 \
-  -set_version sgi$3.0
-# See "man dso" for info about shared objects
-
-RANLIB=echo
-#RANLIB=ranlib
-
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-#LIBPATH=$(prefix)/lib32
-MANPATH=$(prefix)/man
-BINPATH=$(prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location.  Example:
-#
-#    make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = pnggccrd.o png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
-	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
-	pngwtran.o pngmem.o pngerror.o pngpread.o
-
-all: libpng.a pngtest shared libpng.pc libpng-config
-
-libpng.a: $(OBJS)
-	ar rc $@ $(OBJS)
-	$(RANLIB) $@
-
-shared: $(LIBNAME).so.$(PNGVER)
-
-libpng.pc:
-	cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
-
-libpng-config:
-	( cat scripts/libpng-config-head.in; \
-	echo prefix=\"$(prefix)\"; \
-	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
-	echo ccopts=\"$(ABI)\"; \
-	echo ldopts=\"$(ABI)\"; \
-	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libdir=\"$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
-	cat scripts/libpng-config-body.in ) > libpng-config
-	chmod +x libpng-config
-
-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
-
-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
-
-$(LIBNAME).so.$(PNGVER): $(OBJS)
-	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
-
-libpng.so.3.$(PNGMIN): $(OBJS)
-	$(LDLEGACY) -o $@ $(OBJS)
-
-pngtest: pngtest.o libpng.a
-	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
-	echo
-	echo Testing local static library.
-	./pngtest
-
-install-headers: png.h pngconf.h
-	-@if [ ! -d $(DI) ]; then mkdir $(DI); fi
-	-@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
-	cp png.h pngconf.h $(DI)/$(LIBNAME)
-	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
-	-@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
-	-@/bin/rm -f $(DI)/libpng
-	(cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
-	-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-	cp libpng.a $(DL)/$(LIBNAME).a
-	chmod 644 $(DL)/$(LIBNAME).a
-	-@/bin/rm -f $(DL)/libpng.a
-	(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.3.$(PNGMIN)
-	-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-	-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@/bin/rm -f $(DL)/libpng.so
-	-@/bin/rm -f $(DL)/libpng.so.3
-	-@/bin/rm -f $(DL)/libpng.so.3.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.3.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.3.$(PNGMIN)
-	(cd $(DL); \
-	ln -sf libpng.so.3.$(PNGMIN) libpng.so.3; \
-	ln -sf libpng.so.3 libpng.so; \
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
-	-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
-	-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
-	-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
-	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
-	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
-	(cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
-	-@if [ ! -d $(DM) ]; then mkdir $(DM); fi
-	-@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
-	-@/bin/rm -f $(DM)/man3/libpng.3
-	-@/bin/rm -f $(DM)/man3/libpngpf.3
-	cp libpng.3 $(DM)/man3
-	cp libpngpf.3 $(DM)/man3
-	-@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
-	-@/bin/rm -f $(DM)/man5/png.5
-	cp png.5 $(DM)/man5
-
-install-config: libpng-config
-	-@if [ ! -d $(DB) ]; then mkdir $(DB); fi
-	-@/bin/rm -f $(DB)/libpng-config
-	-@/bin/rm -f $(DB)/$(LIBNAME)-config
-	cp libpng-config $(DB)/$(LIBNAME)-config
-	chmod 755 $(DB)/$(LIBNAME)-config
-	(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location.
-
-test-installed:
-	echo
-	echo Testing installed dynamic shared library.
-	$(CC) -I$(ZLIBINC) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
-	   -L$(ZLIBLIB) -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
-	   -o pngtesti `$(BINPATH)/libpng12-config --ldflags`
-	./pngtesti pngtest.png
-
-clean:
-	rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.3.$(PNGMIN) \
-	so_locations
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
-writelock:
-	chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h
-pngerror.o: png.h pngconf.h
-pngrio.o: png.h pngconf.h
-pngwio.o: png.h pngconf.h
-pngmem.o: png.h pngconf.h
-pngset.o: png.h pngconf.h
-pngget.o: png.h pngconf.h
-pngread.o: png.h pngconf.h
-pngrtran.o: png.h pngconf.h
-pngrutil.o: png.h pngconf.h
-pngtest.o: png.h pngconf.h
-pngtrans.o: png.h pngconf.h
-pngwrite.o: png.h pngconf.h
-pngwtran.o: png.h pngconf.h
-pngwutil.o: png.h pngconf.h
-pngpread.o: png.h pngconf.h
-pnggccrd.o: png.h pngconf.h
-
diff --git a/src/3rdparty/libpng/scripts/makefile.sgi b/src/3rdparty/libpng/scripts/makefile.sgi
deleted file mode 100644
index 219b8adfb..000000000
--- a/src/3rdparty/libpng/scripts/makefile.sgi
+++ /dev/null
@@ -1,217 +0,0 @@
-# makefile for libpng.a and libpng12.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002 Glenn Randers-Pehrson
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-# For conditions of distribution and use, see copyright notice in png.h
-
-LIBNAME=libpng12
-PNGMAJ = 0
-PNGMIN = 1.2.5
-PNGVER = $(PNGMAJ).$(PNGMIN)
-
-# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
-# Prefix must be a full pathname.
-
-prefix=/usr/local
-
-# Where the zlib library and include files are located
-#ZLIBLIB=/usr/local/lib32
-#ZLIBINC=/usr/local/include
-#ZLIBLIB=/usr/local/lib
-#ZLIBINC=/usr/local/include
-ZLIBLIB=../zlib
-ZLIBINC=../zlib
-
-CC=cc
-
-# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
-# See "man abi".  zlib must be built with the same ABI.
-ABI=
-
-WARNMORE=-fullwarn
-# Note: -KPIC is the default anyhow
-#CFLAGS= $(ABI) -I$(ZLIBINC) -O $(WARNMORE) -KPIC -DPNG_USE_PNGGCCRD # -g -DPNG_DEBUG=5
-CFLAGS=$(ABI) -I$(ZLIBINC) -O $(WARNMORE) -DPNG_USE_PNGGCCRD \
-  -DPNG_NO_ASSEMBLER_CODE
-LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng12 -lz -lm
-LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
-LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
-  -set_version sgi$(PNGMAJ).0
-LDLEGACY=cc $(ABI) -shared -soname libpng.so.3 \
-  -set_version sgi$3.0
-# See "man dso" for info about shared objects
-
-RANLIB=echo
-#RANLIB=ranlib
-
-INCPATH=$(prefix)/include
-LIBPATH=$(prefix)/lib
-#LIBPATH=$(prefix)/lib32
-MANPATH=$(prefix)/man
-BINPATH=$(prefix)/bin
-
-# override DESTDIR= on the make install command line to easily support
-# installing into a temporary location.  Example:
-#
-#    make install DESTDIR=/tmp/build/libpng
-#
-# If you're going to install into a temporary location
-# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
-# you execute make install.
-DESTDIR=
-
-DB=$(DESTDIR)$(BINPATH)
-DI=$(DESTDIR)$(INCPATH)
-DL=$(DESTDIR)$(LIBPATH)
-DM=$(DESTDIR)$(MANPATH)
-
-OBJS = pnggccrd.o png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
-	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
-	pngwtran.o pngmem.o pngerror.o pngpread.o
-
-all: libpng.a pngtest shared libpng.pc libpng-config
-
-libpng.a: $(OBJS)
-	ar rc $@ $(OBJS)
-	$(RANLIB) $@
-
-shared: $(LIBNAME).so.$(PNGVER)
-
-libpng.pc:
-	cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
-
-libpng-config:
-	( cat scripts/libpng-config-head.in; \
-	echo prefix=\"$(prefix)\"; \
-	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
-	echo cppflags=\"-DPNG_USE_PNGGCCRD -DPNG_NO_ASSEMBLER_CODE\"; \
-	echo ccopts=\"$(ABI)\"; \
-	echo ldopts=\"$(ABI)\"; \
-	echo L_opts=\"-L$(LIBPATH)\"; \
-	echo libdir=\"$(LIBPATH)\"; \
-	echo libs=\"-lpng12 -lz -lm\"; \
-	cat scripts/libpng-config-body.in ) > libpng-config
-	chmod +x libpng-config
-
-$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
-
-$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
-
-$(LIBNAME).so.$(PNGVER): $(OBJS)
-	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
-
-libpng.so.3.$(PNGMIN): $(OBJS)
-	$(LDLEGACY) -o $@ $(OBJS)
-
-pngtest: pngtest.o libpng.a
-	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
-
-test: pngtest
-	echo
-	echo Testing local static library.
-	./pngtest
-
-install-headers: png.h pngconf.h
-	-@if [ ! -d $(DI) ]; then mkdir $(DI); fi
-	-@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
-	cp png.h pngconf.h $(DI)/$(LIBNAME)
-	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
-	-@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
-	-@/bin/rm -f $(DI)/libpng
-	(cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
-
-install-static: install-headers libpng.a
-	-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-	cp libpng.a $(DL)/$(LIBNAME).a
-	chmod 644 $(DL)/$(LIBNAME).a
-	-@/bin/rm -f $(DL)/libpng.a
-	(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
-
-install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
-	libpng.so.3.$(PNGMIN)
-	-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-	-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-	-@/bin/rm -f $(DL)/libpng.so
-	-@/bin/rm -f $(DL)/libpng.so.3
-	-@/bin/rm -f $(DL)/libpng.so.3.$(PNGMIN)*
-	cp $(LIBNAME).so.$(PNGVER) $(DL)
-	cp libpng.so.3.$(PNGMIN) $(DL)
-	chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
-	chmod 755 $(DL)/libpng.so.3.$(PNGMIN)
-	(cd $(DL); \
-	ln -sf libpng.so.3.$(PNGMIN) libpng.so.3; \
-	ln -sf libpng.so.3 libpng.so; \
-	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
-	-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
-	-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
-	-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
-	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
-	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
-	(cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
-
-install-man: libpng.3 libpngpf.3 png.5
-	-@if [ ! -d $(DM) ]; then mkdir $(DM); fi
-	-@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
-	-@/bin/rm -f $(DM)/man3/libpng.3
-	-@/bin/rm -f $(DM)/man3/libpngpf.3
-	cp libpng.3 $(DM)/man3
-	cp libpngpf.3 $(DM)/man3
-	-@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
-	-@/bin/rm -f $(DM)/man5/png.5
-	cp png.5 $(DM)/man5
-
-install-config: libpng-config
-	-@if [ ! -d $(DB) ]; then mkdir $(DB); fi
-	-@/bin/rm -f $(DB)/libpng-config
-	-@/bin/rm -f $(DB)/$(LIBNAME)-config
-	cp libpng-config $(DB)/$(LIBNAME)-config
-	chmod 755 $(DB)/$(LIBNAME)-config
-	(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
-
-install: install-static install-shared install-man install-config
-
-# If you installed in $(DESTDIR), test-installed won't work until you
-# move the library to its final location.
-
-test-installed:
-	echo
-	echo Testing installed dynamic shared library.
-	$(CC) -I$(ZLIBINC) \
-	   `$(BINPATH)/libpng12-config --cflags` pngtest.c \
-	   -L$(ZLIBLIB) -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --libdir` \
-	   -o pngtesti `$(BINPATH)/libpng12-config --ldflags`
-	./pngtesti pngtest.png
-
-clean:
-	rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc libpng-config \
-	$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* \
-	libpng.so.3.$(PNGMIN) \
-	so_locations
-
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
-writelock:
-	chmod a-w *.[ch35] $(DOCS) scripts/*
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-png.o: png.h pngconf.h
-pngerror.o: png.h pngconf.h
-pngrio.o: png.h pngconf.h
-pngwio.o: png.h pngconf.h
-pngmem.o: png.h pngconf.h
-pngset.o: png.h pngconf.h
-pngget.o: png.h pngconf.h
-pngread.o: png.h pngconf.h
-pngrtran.o: png.h pngconf.h
-pngrutil.o: png.h pngconf.h
-pngtest.o: png.h pngconf.h
-pngtrans.o: png.h pngconf.h
-pngwrite.o: png.h pngconf.h
-pngwtran.o: png.h pngconf.h
-pngwutil.o: png.h pngconf.h
-pngpread.o: png.h pngconf.h
-pnggccrd.o: png.h pngconf.h
-
diff --git a/src/3rdparty/zlib/configure b/src/3rdparty/zlib/configure
index d36abb38a..7dab28f86 100755
--- a/src/3rdparty/zlib/configure
+++ b/src/3rdparty/zlib/configure
@@ -93,9 +93,6 @@ else
   # find system name and corresponding cc options
   CC=${CC-cc}
   case `(uname -sr || echo unknown) 2>/dev/null` in
-  IRIX*)     SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
-             CFLAGS=${CFLAGS-"-ansi -O2"}
-             LDSHARED=${LDSHARED-"cc -shared"};;
   QNX*)      SFLAGS=${CFLAGS-"-4 -O"}
              CFLAGS=${CFLAGS-"-4 -O"}
              LDSHARED=${LDSHARED-"cc"}
diff --git a/src/kernel/tqapplication.cpp b/src/kernel/tqapplication.cpp
index 97368b0c6..6f9e2872a 100644
--- a/src/kernel/tqapplication.cpp
+++ b/src/kernel/tqapplication.cpp
@@ -1434,8 +1434,6 @@ TQStyle& TQApplication::style()
 		style = "Windows";		// default styles for Windows
 #elif defined(TQ_WS_X11) && defined(Q_OS_SOLARIS)
 	    style = "CDE";			// default style for X11 on Solaris
-#elif defined(TQ_WS_X11) && defined(Q_OS_IRIX)
-	    style = "SGI";			// default style for X11 on IRIX
 #elif defined(TQ_WS_X11)
 		style = "Motif";		// default style for X11
 #elif defined(TQ_WS_MAC)
diff --git a/src/kernel/tqapplication_x11.cpp b/src/kernel/tqapplication_x11.cpp
index eeb5e0e36..5b0bba96e 100644
--- a/src/kernel/tqapplication_x11.cpp
+++ b/src/kernel/tqapplication_x11.cpp
@@ -2272,12 +2272,10 @@ void tqt_init_internal( int *argcptr, char **argv,
 	XEventClass *ev_class;
 	int curr_event_count;
 
-#if !defined(Q_OS_IRIX)
 	// XFree86 divides a stylus and eraser into 2 devices, so we must do for both...
 	const TQString XFREENAMESTYLUS = "stylus";
 	const TQString XFREENAMEPEN = "pen";
 	const TQString XFREENAMEERASER = "eraser";
-#endif
 
 	devices = XListInputDevices( appDpy, &ndev);
 	if ( devices == NULL ) {
@@ -2287,11 +2285,6 @@ void tqt_init_internal( int *argcptr, char **argv,
 	dev = NULL;
 	for ( devs = devices, i = 0; i < ndev; i++, devs++ ) {
 	    gotEraser = false;
-#if defined(Q_OS_IRIX)
-
-	    gotStylus = ( !strncmp(devs->name,
-				   WACOM_NAME, sizeof(WACOM_NAME) - 1) );
-#else
 	    TQString devName = devs->name;
 	    devName = devName.lower();
 	    gotStylus = ( devName.startsWith(XFREENAMEPEN)
@@ -2299,7 +2292,6 @@ void tqt_init_internal( int *argcptr, char **argv,
 	    if ( !gotStylus )
 		gotEraser = devName.startsWith( XFREENAMEERASER );
 
-#endif
 	    if ( gotStylus || gotEraser ) {
 		// I only wanted to do this once, so wrap pointers around these
 		curr_event_count = 0;
@@ -2358,11 +2350,7 @@ void tqt_init_internal( int *argcptr, char **argv,
 			    v = (XValuatorInfoPtr) any;
 			    a = (XAxisInfoPtr) ((char *) v +
 						sizeof (XValuatorInfo));
-#if defined (Q_OS_IRIX)
-			    max_pressure = a[WAC_PRESSURE_I].max_value;
-#else
 			    max_pressure = a[2].max_value;
-#endif
 			    // got the max pressure no need to go further...
 			    break;
 			}
@@ -2373,11 +2361,7 @@ void tqt_init_internal( int *argcptr, char **argv,
 		}
 		// at this point we are assuming there is only one
 		// wacom device...
-#if defined (Q_OS_IRIX)
-		if ( devStylus != NULL ) {
-#else
 		    if ( devStylus != NULL && devEraser != NULL ) {
-#endif
 			break;
 		    }
 		}
@@ -4237,18 +4221,6 @@ bool TQETWidget::translateMouseEvent( const XEvent *event )
         case 9: button = HistoryForwardButton; break;
 	}
 	if ( event->type == ButtonPress ) {	// mouse button pressed
-#if defined(Q_OS_IRIX) && defined(QT_TABLET_SUPPORT)
-	    XEvent myEv;
-	    if ( XCheckTypedEvent( appDpy, xinput_button_press, &myEv ) ) {
-		if ( translateXinputEvent( &myEv ) ) {
-		    //Spontaneous event sent.  Check if we need to continue.
-		    if ( chokeMouse ) {
-			chokeMouse = false;
-			return false;
-		    }
-		}
-	    }
-#endif
 	    qt_button_down = childAt( pos );	//magic for masked widgets
 	    if ( !qt_button_down || !qt_button_down->testWFlags(WMouseNoMask) )
 		qt_button_down = this;
@@ -4270,18 +4242,6 @@ bool TQETWidget::translateMouseEvent( const XEvent *event )
 	    mouseGlobalXPos = globalPos.x();
 	    mouseGlobalYPos = globalPos.y();
 	} else {				// mouse button released
-#if defined(Q_OS_IRIX) && defined(QT_TABLET_SUPPORT)
-	    XEvent myEv;
-	    if ( XCheckTypedEvent( appDpy, xinput_button_release, &myEv ) ) {
-		if ( translateXinputEvent( &myEv ) ) {
-		    //Spontaneous event sent.  Check if we need to continue.
-		    if ( chokeMouse ) {
-			chokeMouse = false;
-			return false;
-		    }
-		}
-	    }
-#endif
 	    if ( manualGrab ) {			// release manual grab
 		manualGrab = false;
 		XUngrabPointer( x11Display(), CurrentTime );
@@ -4456,15 +4416,6 @@ bool TQETWidget::translateWheelEvent( int global_x, int global_y, int delta, int
 #if defined (QT_TABLET_SUPPORT)
 bool TQETWidget::translateXinputEvent( const XEvent *ev )
 {
-#if defined (Q_OS_IRIX)
-    // Wacom has put defines in their wacom.h file so it would be quite wise
-    // to use them, need to think of a decent way of not using
-    // it when it doesn't exist...
-    XDeviceState *s;
-    XInputClass *iClass;
-    XValuatorState *vs;
-    int j;
-#endif
     TQWidget *w = this;
     TQPoint global,
 	curr;
@@ -4475,9 +4426,6 @@ bool TQETWidget::translateXinputEvent( const XEvent *ev )
     TQPair<int, int> tId;
     XEvent xinputMotionEvent;
     XEvent mouseMotionEvent;
-#if defined (Q_OS_IRIX)
-    XDevice *dev;
-#endif
     const XDeviceMotionEvent *motion = 0;
     XDeviceButtonEvent *button = 0;
     TQEvent::Type t;
@@ -4527,10 +4475,6 @@ bool TQETWidget::translateXinputEvent( const XEvent *ev )
 */
 	curr = TQPoint( button->x, button->y );
     }
-#if defined(Q_OS_IRIX)
-    // default...
-    dev = devStylus;
-#else
     if ( ev->type == xinput_motion ) {
 	if ( motion->deviceid == devStylus->device_id ) {
 	    deviceType = TQTabletEvent::Stylus;
@@ -4544,7 +4488,6 @@ bool TQETWidget::translateXinputEvent( const XEvent *ev )
 	    deviceType = TQTabletEvent::Eraser;
 	}
     }
-#endif
 
     const int PRESSURE_LEVELS = 255;
     // we got the maximum pressure at start time, since various tablets have
@@ -4557,49 +4500,6 @@ bool TQETWidget::translateXinputEvent( const XEvent *ev )
 	else
 	    scaleFactor = PRESSURE_LEVELS / max_pressure;
     }
-#if defined (Q_OS_IRIX)
-    s = XQueryDeviceState( appDpy, dev );
-    if ( s == NULL )
-        return false;
-    iClass = s->data;
-    for ( j = 0; j < s->num_classes; j++ ) {
-        if ( iClass->c_class == ValuatorClass ) {
-            vs = (XValuatorState *)iClass;
-            // figure out what device we have, based on bitmasking...
-            if ( vs->valuators[WAC_TRANSDUCER_I]
-                 & WAC_TRANSDUCER_PROX_MSK ) {
-                switch ( vs->valuators[WAC_TRANSDUCER_I]
-                         & WAC_TRANSDUCER_MSK ) {
-                case WAC_PUCK_ID:
-                    deviceType = TQTabletEvent::Puck;
-                    break;
-                case WAC_STYLUS_ID:
-                    deviceType = TQTabletEvent::Stylus;
-                    break;
-                case WAC_ERASER_ID:
-                    deviceType = TQTabletEvent::Eraser;
-                    break;
-                }
-                // Get a Unique Id for the device, Wacom gives us this ability
-                tId.first = vs->valuators[WAC_TRANSDUCER_I] & WAC_TRANSDUCER_ID_MSK;
-                tId.second = vs->valuators[WAC_SERIAL_NUM_I];
-            } else
-                deviceType = TQTabletEvent::NoDevice;
-            // apparently Wacom needs a cast for the +/- values to make sense
-            xTilt = short(vs->valuators[WAC_XTILT_I]);
-            yTilt = short(vs->valuators[WAC_YTILT_I]);
-            if ( max_pressure > PRESSURE_LEVELS )
-                pressure = vs->valuators[WAC_PRESSURE_I] / scaleFactor;
-            else
-                pressure = vs->valuators[WAC_PRESSURE_I] * scaleFactor;
-	    global = TQPoint( vs->valuators[WAC_XCOORD_I],
-                             vs->valuators[WAC_YCOORD_I] );
-	    break;
-	}
-	iClass = (XInputClass*)((char*)iClass + iClass->length);
-    }
-    XFreeDeviceState( s );
-#else
     if ( motion ) {
 	xTilt = short(motion->axis_data[3]);
 	yTilt = short(motion->axis_data[4]);
@@ -4619,7 +4519,6 @@ bool TQETWidget::translateXinputEvent( const XEvent *ev )
     }
     // The only way to get these Ids is to scan the XFree86 log, which I'm not going to do.
     tId.first = tId.second = -1;
-#endif
 
     TQTabletEvent e( t, curr, global, deviceType, pressure, xTilt, yTilt, tId );
     TQApplication::sendSpontaneousEvent( w, &e );
diff --git a/src/kernel/tqevent.cpp b/src/kernel/tqevent.cpp
index d1cf09fe9..053c00223 100644
--- a/src/kernel/tqevent.cpp
+++ b/src/kernel/tqevent.cpp
@@ -1970,9 +1970,6 @@ TQContextMenuEvent::TQContextMenuEvent( Reason reason, const TQPoint &pos, int s
   \a device's degree of tilt from the X and Y axis respectively.  The \a uId contains an
   event id.
 
-  On Irix, \a globalPos will contain the high-resolution coordinates received from the
-  tablet device driver, instead of from the windowing system.
-
   \sa pos(), globalPos(), device(), pressure(), xTilt(), yTilt()
 */
 
@@ -2002,10 +1999,6 @@ TQTabletEvent::TQTabletEvent( Type t, const TQPoint &pos, const TQPoint &globalP
     yTilt contain the \a device's degrees of tilt from the X and Y
     axis respectively. The \a uId contains an event id.
 
-    On Irix, \a globalPos will contain the high-resolution coordinates
-    received from the tablet device driver, instead of from the
-    windowing system.
-
   \sa pos(), globalPos(), device(), pressure(), xTilt(), yTilt()
 */
 
diff --git a/src/kernel/tqt_x11_p.h b/src/kernel/tqt_x11_p.h
index aeb120203..b84bfca4b 100644
--- a/src/kernel/tqt_x11_p.h
+++ b/src/kernel/tqt_x11_p.h
@@ -88,9 +88,6 @@
 // the wacom tablet (currently just the IRIX version)
 #if defined (QT_TABLET_SUPPORT)
 #  include <X11/extensions/XInput.h>
-#if defined (Q_OS_IRIX)
-#  include <wacom.h>  // wacom driver defines for IRIX (quite handy)
-#endif
 #endif // QT_TABLET_SUPPORT
 
 
@@ -190,10 +187,6 @@ typedef char *XPointer;
 #elif defined(Q_OS_AIX)
 // broken in Xlib up to what version of AIX?
 #define TQT_NO_XIM
-#elif defined(TQT_NO_DEBUG) && defined(Q_OS_IRIX)
-// XmbLookupString broken on IRIX
-// XCreateIC broken when compiling -64 on IRIX 6.5.2
-#define TQT_NO_XIM
 #endif // TQT_NO_XIM
 
 
diff --git a/src/tools/qt_tools.pri b/src/tools/qt_tools.pri
index 702e575f7..a01835953 100644
--- a/src/tools/qt_tools.pri
+++ b/src/tools/qt_tools.pri
@@ -138,11 +138,5 @@ tools {
 		  $$TOOLS_CPP/tqunicodetables.cpp \
 		  $$TOOLS_CPP/tqucom.cpp \
 		  $$TOOLS_CPP/tquuid.cpp
-
-        irix-cc* {
-                CXXFLAGS_PRELINK = $$QMAKE_CXXFLAGS
-                CXXFLAGS_PRELINK -= -O2
-                QMAKE_PRE_LINK          = $(CXX) -c $$CXXFLAGS_PRELINK -O1 $(INCPATH) -o $(OBJECTS_DIR)/tqlocale.o tools/tqlocale.cpp
-        }
 }
 
diff --git a/src/tools/tqglobal.h b/src/tools/tqglobal.h
index ff0d7d835..1f98a5d85 100644
--- a/src/tools/tqglobal.h
+++ b/src/tools/tqglobal.h
@@ -65,7 +65,6 @@
      NETBSD	- NetBSD
      OPENBSD	- OpenBSD
      BSDI	- BSD/OS
-     IRIX	- SGI Irix
      UNIXWARE	- UnixWare 7, Open UNIX 8
      AIX	- AIX
      HURD	- GNU Hurd
@@ -120,8 +119,6 @@
 #elif defined(__bsdi__)
 #  define Q_OS_BSDI
 #  define Q_OS_BSD4
-#elif defined(__sgi)
-#  define Q_OS_IRIX
 #elif defined(_AIX)
 #  define Q_OS_AIX
 #elif defined(__Lynx__)
@@ -331,19 +328,6 @@
 #    define Q_CC_OC
 #    define Q_NO_USING_KEYWORD
 
-/* The MIPSpro compiler in o32 mode is based on EDG but disables features
-   such as template specialization nevertheless */
-#  elif defined(__sgi)
-#    define Q_CC_MIPS
-#    if defined(_MIPS_SIM) && (_MIPS_SIM == _ABIO32) /* o32 ABI */
-#      define TQ_TYPENAME
-#    elif defined(_COMPILER_VERSION) && (_COMPILER_VERSION < 730) /* 7.2 */
-#      define TQ_TYPENAME
-#    endif
-#    define Q_NO_USING_KEYWORD /* ### check "using" status */
-#    if defined(_COMPILER_VERSION) && (_COMPILER_VERSION >= 740)
-#      pragma set woff 3624,3625, 3649 /* turn off some harmless warnings */
-#    endif
 #  endif
 
 /* The older UnixWare 2.X compiler? */
diff --git a/src/tools/tqlibrary.cpp b/src/tools/tqlibrary.cpp
index 65e2f5326..d2b038af8 100644
--- a/src/tools/tqlibrary.cpp
+++ b/src/tools/tqlibrary.cpp
@@ -57,8 +57,7 @@
 #endif
 
 #if (defined(TQ_WS_WIN) && !defined(QT_MAKEDLL)) \
-    || (defined(Q_OS_FREEBSD) && defined(Q_CC_INTEL)) \
-    || (defined(Q_OS_IRIX) && defined(Q_CC_GNU))
+    || (defined(Q_OS_FREEBSD) && defined(Q_CC_INTEL))
 #define TQT_NO_LIBRARY_UNLOAD
 #endif