diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 05a57103cf1347687d5f9262999d184cd26cf457..cdb12e140c4041fdf53e41f57633bb3bf09d9f6c 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,9 @@
+2006-01-24  Richard Henderson  <rth@redhat.com>
+
+	PR libgomp/25942
+	* configure.ac: Add AM_MAINTAINER_MODE.
+	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in: Rebuild.
+
 2006-01-24  Diego Novillo  <dnovillo@redhat.com>
 
 	* Makefile.in: Regenerate.
diff --git a/libgomp/Makefile.in b/libgomp/Makefile.in
index 561aaa008452b411f00850c32ead1c630ac99a9d..52f29b31395a4f36ad82b76507de5bd80b8b7f44 100644
--- a/libgomp/Makefile.in
+++ b/libgomp/Makefile.in
@@ -155,6 +155,9 @@ LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@
 LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
+MAINT = @MAINT@
+MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
+MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
 MAKEINFO = @MAKEINFO@
 OBJEXT = @OBJEXT@
 OPT_LDFLAGS = @OPT_LDFLAGS@
@@ -256,7 +259,7 @@ all: config.h
 .SUFFIXES: .c .lo .o .obj
 am--refresh:
 	@:
-$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -283,9 +286,9 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	$(SHELL) ./config.status --recheck
 
-$(top_srcdir)/configure:  $(am__configure_deps)
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 	cd $(srcdir) && $(AUTOCONF)
-$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 	cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
 
 config.h: stamp-h1
@@ -297,7 +300,7 @@ config.h: stamp-h1
 stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
 	@rm -f stamp-h1
 	cd $(top_builddir) && $(SHELL) ./config.status config.h
-$(srcdir)/config.h.in:  $(am__configure_deps) 
+$(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) 
 	cd $(top_srcdir) && $(AUTOHEADER)
 	rm -f stamp-h1
 	touch $@
diff --git a/libgomp/aclocal.m4 b/libgomp/aclocal.m4
index 696001cbb46c546ecd1fa05d803b96515dba1262..95667ef84c1272fcb92803e6f9fde9675865b891 100644
--- a/libgomp/aclocal.m4
+++ b/libgomp/aclocal.m4
@@ -468,6 +468,35 @@ AC_DEFUN([AM_PROG_INSTALL_SH],
 install_sh=${install_sh-"$am_aux_dir/install-sh"}
 AC_SUBST(install_sh)])
 
+# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
+# From Jim Meyering
+
+# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+AC_DEFUN([AM_MAINTAINER_MODE],
+[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
+  dnl maintainer-mode is disabled by default
+  AC_ARG_ENABLE(maintainer-mode,
+[  --enable-maintainer-mode  enable make rules and dependencies not useful
+			  (and sometimes confusing) to the casual installer],
+      USE_MAINTAINER_MODE=$enableval,
+      USE_MAINTAINER_MODE=no)
+  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
+  AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
+  MAINT=$MAINTAINER_MODE_TRUE
+  AC_SUBST(MAINT)dnl
+]
+)
+
+AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
+
 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
 
 # Copyright (C) 2001, 2002, 2003, 2005  Free Software Foundation, Inc.
diff --git a/libgomp/configure b/libgomp/configure
index 5855c07a67f7d2192ff0ea12e88272ff6c30297e..5a9ce27c19506d98527767d5aa243060b65fb841 100755
--- a/libgomp/configure
+++ b/libgomp/configure
@@ -308,7 +308,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar multi_basedir toolexecdir toolexeclibdir CC ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CFLAGS AR ac_ct_AR RANLIB ac_ct_RANLIB PERL LN_S LIBTOOL enable_shared enable_static FC FCFLAGS LDFLAGS ac_ct_FC libtool_VERSION CPP CPPFLAGS EGREP SECTION_LDFLAGS OPT_LDFLAGS LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE config_path XCFLAGS XLDFLAGS link_gomp USE_FORTRAN_TRUE USE_FORTRAN_FALSE LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar multi_basedir toolexecdir toolexeclibdir CC ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CFLAGS AR ac_ct_AR RANLIB ac_ct_RANLIB PERL LN_S LIBTOOL enable_shared enable_static MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT FC FCFLAGS LDFLAGS ac_ct_FC libtool_VERSION CPP CPPFLAGS EGREP SECTION_LDFLAGS OPT_LDFLAGS LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE config_path XCFLAGS XLDFLAGS link_gomp USE_FORTRAN_TRUE USE_FORTRAN_FALSE LIBOBJS LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -863,6 +863,8 @@ Optional Features:
   --enable-static=PKGS  build static libraries default=yes
   --enable-fast-install=PKGS  optimize for fast installation default=yes
   --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-maintainer-mode  enable make rules and dependencies not useful
+			  (and sometimes confusing) to the casual installer
   _g_switchUse thread-local storage
                           [default=yes]
   --enable-symvers=STYLE  enables symbol versioning of the shared library
@@ -4226,7 +4228,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 4229 "configure"' > conftest.$ac_ext
+  echo '#line 4231 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -4515,6 +4517,31 @@ exec 5>>./config.log
 
 
 
+echo "$as_me:$LINENO: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo $ECHO_N "checking whether to enable maintainer-specific portions of Makefiles... $ECHO_C" >&6
+    # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
+if test "${enable_maintainer_mode+set}" = set; then
+  enableval="$enable_maintainer_mode"
+  USE_MAINTAINER_MODE=$enableval
+else
+  USE_MAINTAINER_MODE=no
+fi;
+  echo "$as_me:$LINENO: result: $USE_MAINTAINER_MODE" >&5
+echo "${ECHO_T}$USE_MAINTAINER_MODE" >&6
+
+
+if test $USE_MAINTAINER_MODE = yes; then
+  MAINTAINER_MODE_TRUE=
+  MAINTAINER_MODE_FALSE='#'
+else
+  MAINTAINER_MODE_TRUE='#'
+  MAINTAINER_MODE_FALSE=
+fi
+
+  MAINT=$MAINTAINER_MODE_TRUE
+
+
+
 # We need gfortran to compile parts of the library
 # We can't use AC_PROG_FC because it expects a fully working gfortran.
 #AC_PROG_FC(gfortran)
@@ -4611,7 +4638,7 @@ fi
 
 
 # Provide some information about the compiler.
-echo "$as_me:4614:" \
+echo "$as_me:4641:" \
      "checking for Fortran compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -6762,6 +6789,13 @@ echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
 Usually this means the macro was only invoked conditionally." >&2;}
    { (exit 1); exit 1; }; }
 fi
+if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
 if test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE}" && test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE}"; then
   { { echo "$as_me:$LINENO: error: conditional \"LIBGOMP_BUILD_VERSIONED_SHLIB\" was never defined.
 Usually this means the macro was only invoked conditionally." >&5
@@ -7382,6 +7416,9 @@ s,@LN_S@,$LN_S,;t t
 s,@LIBTOOL@,$LIBTOOL,;t t
 s,@enable_shared@,$enable_shared,;t t
 s,@enable_static@,$enable_static,;t t
+s,@MAINTAINER_MODE_TRUE@,$MAINTAINER_MODE_TRUE,;t t
+s,@MAINTAINER_MODE_FALSE@,$MAINTAINER_MODE_FALSE,;t t
+s,@MAINT@,$MAINT,;t t
 s,@FC@,$FC,;t t
 s,@FCFLAGS@,$FCFLAGS,;t t
 s,@LDFLAGS@,$LDFLAGS,;t t
diff --git a/libgomp/configure.ac b/libgomp/configure.ac
index 2a00337a57d8b18b9099430390e2c8398d852785..dbc5ed34e2917dd8b8ca4ecfc5512ea81ff134e6 100644
--- a/libgomp/configure.ac
+++ b/libgomp/configure.ac
@@ -122,6 +122,8 @@ AM_PROG_LIBTOOL
 AC_SUBST(enable_shared)
 AC_SUBST(enable_static)
 
+AM_MAINTAINER_MODE
+
 # We need gfortran to compile parts of the library
 # We can't use AC_PROG_FC because it expects a fully working gfortran.
 #AC_PROG_FC(gfortran)
diff --git a/libgomp/testsuite/Makefile.in b/libgomp/testsuite/Makefile.in
index 2b05ca70c96ba8bed48991daf5da0e4433f884d4..4700e0d8dfe22a468414da8a25838b4c8c822bd8 100644
--- a/libgomp/testsuite/Makefile.in
+++ b/libgomp/testsuite/Makefile.in
@@ -88,6 +88,9 @@ LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@
 LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
+MAINT = @MAINT@
+MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
+MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
 MAKEINFO = @MAKEINFO@
 OBJEXT = @OBJEXT@
 OPT_LDFLAGS = @OPT_LDFLAGS@
@@ -175,7 +178,7 @@ RUNTEST = "$(_RUNTEST) $(AM_RUNTESTFLAGS)"
 all: all-am
 
 .SUFFIXES:
-$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
@@ -200,9 +203,9 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-$(top_srcdir)/configure:  $(am__configure_deps)
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
-$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
 mostlyclean-libtool: