+2015-04-02 H.J. Lu <hongjiu.lu@intel.com>
+
+ * zlib.m4 (AM_ZLIB): Set zlibdir to -L\$(top_builddir)/../zlib
+ and set zlibinc to -I\$(top_srcdir)/../zlib.
+
+2015-04-01 H.J. Lu <hongjiu.lu@intel.com>
+
+ * zlib.m4 (AM_ZLIB): Unset zlibdir and zlibinc only for
+ --with-system-zlib.
+
+2015-03-31 H.J. Lu <hongjiu.lu@intel.com>
+
+ * zlib.m4 (AM_ZLIB): Replace --with-zlib with --with-system-zlib.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ * isl.m4: Sync with GCC tree.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ Sync with GCC
+ 2015-02-18 Thomas Schwinge <thomas@codesourcery.com>
+
+ * elf.m4 (ACX_ELF_TARGET_IFELSE): nvptx-*-none isn't ELF.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ Sync with GCC
+ 2014-11-17 Bob Dunlop <bob.dunlop@xyzzy.org.uk>
+
+ * mt-ospace (CFLAGS_FOR_TARGET): Append -g -Os rather than
+ overwriting.
+ (CXXFLAGS_FOR_TARGET): Similarly.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ Sync with GCC
+ 2014-04-25 Marc Glisse <marc.glisse@inria.fr>
+
+ PR target/43538
+ * mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ * bootstrap-asan.mk: Sync with GCC tree.
+ * bootstrap-lto.mk: Likewise.
+
+2015-03-16 H.J. Lu <hongjiu.lu@intel.com>
+
+ * cloog.m4: Removed.
+
+2014-08-19 Alan Modra <amodra@gmail.com>
+
+ * plugins.m4 (AC_PLUGINS): If plugins are enabled, add -ldl to
+ LIBS via AC_SEARCH_LIBS.
+
+2014-08-14 Alan Modra <amodra@gmail.com>
+
+ * plugins.m4: Test for dlfcn.h or windows.h here to set default
+ for --enable-plugins. Report error if someone tries to enable
+ plugins on a host we don't support.
+
+2014-05-14 Sandra Loosemore <sandra@codesourcery.com>
+
+ * mt-nios2-elf: New file.
+
+2013-12-07 Mike Frysinger <vapier@gentoo.org>
+
+ * acinclude.m4: Remove +x file mode.
+
+2013-11-29 Marek Polacek <polacek@redhat.com>
+
+ * bootstrap-ubsan.mk (POSTSTAGE1_LDFLAGS): Remove -lpthread -ldl.
+ Add -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/.
+
+2013-11-29 H.J. Lu <hongjiu.lu@intel.com>
+
+ * bootstrap-asan.mk (POSTSTAGE1_LDFLAGS): Add
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/.
+
+2013-11-19 Marek Polacek <polacek@redhat.com>
+
+ * bootstrap-ubsan.mk (POSTSTAGE1_LDFLAGS): Add -ldl.
+
+2013-11-18 Jan Hubicka <jh@suse.cz>
+
+ * bootstrap-lto.mk: Use -ffat-lto-objects.
+
+2013-11-15 Andreas Schwab <schwab@linux-m68k.org>
+
+ * picflag.m4 (m68k-*-*): Use default PIC flag.
+
+2013-09-29 Iain Sandoe <iain@codesourcery.com>
+
+ * mh-darwin (BOOT_CFLAGS): Only add -mdynamic-no-pic for m32 hosts.
+ (STAGE1_CFLAGS, STAGE1_LDFLAGS): New.
+ Fix over-length lines and amend comments.
+
+2013-08-30 Marek Polacek <polacek@redhat.com>
+
+ * bootstrap-ubsan.mk: New.
+
+2013-03-27 Kai Tietz <ktietz@redhat.com>
+
+ * dfp.m4: Add support for cygwin x64 target.
+ * picflag.m4: Likewise.
+
+2013-02-25 H.J. Lu <hongjiu.lu@intel.com>
+
+ * bootstrap-asan.mk (POSTSTAGE1_LDFLAGS): Add
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/.
+
+2013-01-23 Shenghou Ma <minux.ma@gmail.com>
+
+ * isl.m4: don't echo $CFLAGS for ISL_CHECK_VERSION.
+
+2013-01-15 Richard Biener <rguenther@suse.de>
+
+ PR other/55973
+ * isl.m4 (ISL_INIT_FLAGS): Warn about disabled version check
+ for in-tree build.
+ (ISL_CHECK_VERSION): Do not use AC_CACHE_CHECK.
+ * cloog.m4 (CLOOG_INIT_FLAGS): Disable version check for
+ in-tree build and warn about that.
+ (CLOOG_CHECK_VERSION): Do not use AC_CACHE_CHECK.
+
+2013-01-07 H.J. Lu <hongjiu.lu@intel.com>
+
+ * libstdc++-raw-cxx.m4 (GCC_LIBSTDCXX_RAW_CXX_FLAGS): Remove
+ "-I" from LIBSTDCXX_RAW_CXX_LDFLAGS.
+
2012-12-12 H.J. Lu <hongjiu.lu@intel.com>
* libstdc++-raw-cxx.m4 (GCC_LIBSTDCXX_RAW_CXX_FLAGS): Also