+2024-04-15 Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
+
+ * acx.m4: Add a macro to check for rust
+ components.
+
+2024-04-02 Jakub Jelinek <jakub@redhat.com>
+
+ * lcmessage.m4: Fix duplicated words; can can -> can,
+ package package -> package.
+
+2024-01-11 Mike Frysinger <vapier@gentoo.org>
+
+ * acinclude.m4 (CYG_AC_PATH_LIBERTY): Delete.
+
+2023-11-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * hwcaps.m4 (GCC_CHECK_ASSEMBLER_HWCAP): Require
+ AC_CANONICAL_TARGET.
+
+2023-11-13 Arsen Arsenović <arsen@aarsen.me>
+
+ * intlmacosx.m4: Import from gettext-0.22 (serial 8).
+ * gettext.m4: Sync with gettext-0.22 (serial 77).
+ * gettext-sister.m4 (ZW_GNU_GETTEXT_SISTER_DIR): Load gettext's
+ uninstalled-config.sh, or call AM_GNU_GETTEXT if missing.
+ * iconv.m4: Sync with gettext-0.22 (serial 26).
+
+2023-09-15 Yang Yujie <yangyujie@loongson.cn>
+
+ * mt-loongarch-mlib: New file. Pass -fmultiflags when building
+ target libraries (FLAGS_FOR_TARGET).
+ * mt-loongarch-elf: New file.
+ * mt-loongarch-gnu: New file.
+
+2023-08-11 Joseph Myers <joseph@codesourcery.com>
+
+ * gcc-plugin.m4 (GCC_ENABLE_PLUGINS): Use
+ export_sym_check="$ac_cv_prog_OBJDUMP -T" also when host is not
+ build or target.
+
+2023-08-07 H.J. Lu <hjl.tools@gmail.com>
+
+ * pkg.m4 (PKG_CHECK_MODULES): Use AC_TRY_LINK only if
+ $pkg_failed = no.
+
+2023-08-07 H.J. Lu <hjl.tools@gmail.com>
+
+ * pkg.m4 (PKG_CHECK_MODULES): Add AC_TRY_LINK to check if
+ $pkg_cv_[]$1[]_LIBS works.
+
+2023-08-07 John Ericson <git@JohnEricson.me>
+
+ * picflag.m4: Simplify SHmedia NetBSD match by presuming ELF.
+
+2023-08-07 Alan Modra <amodra@gmail.com>
+
+ * override.m4: Correct comment grammar.
+
+2023-08-07 Alan Modra <amodra@gmail.com>
+
+ * lib-ld.m4 (AC_LIB_PROG_LD_GNU): Require AC_PROG_EGREP and
+ invoke $EGREP.
+ (AC_LIB_PROG_LD): Likewise.
+
+2023-08-07 Christophe Lyon <christophe.lyon@arm.com>
+
+ * zstd.m4: Add minimum version requirement of 1.4.0.
+
+2023-08-07 Fangrui Song <maskray@google.com>
+
+ * zstd.m4: New file.
+
+2023-08-07 H.J. Lu <hjl.tools@gmail.com>
+
+ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): Check if AR works with
+ --plugin and rc before enabling --plugin.
+
+2023-08-07 H.J. Lu <hjl.tools@gmail.com>
+
+ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
+
+2023-07-21 Sergei Trofimovich <siarheit@google.com>
+
+ * mh-mingw: Drop assignment of unused BOOT_CXXFLAGS variable.
+
+2022-11-14 Martin Liska <mliska@suse.cz>
+
+ Revert:
+ 2022-11-09 Martin Liska <mliska@suse.cz>
+
+ * acx.m4: Do not wrap REPORT_BUGS_TO.
+
+2022-11-09 Martin Liska <mliska@suse.cz>
+
+ * acx.m4: Do not wrap REPORT_BUGS_TO.
+
+2022-10-19 LIU Hao <lh_mouse@126.com>
+
+ * gthr.m4 (GCC_AC_THREAD_HEADER): Add new case for `mcf` thread
+ model
+
+2022-08-31 Martin Liska <mliska@suse.cz>
+
+ * mh-pa-hpux10: Removed.
+
+2022-08-01 Roger Sayle <roger@nextmovesoftware.com>
+ Arnaud Charlet <charlet@adacore.com>
+
+ * acx.m4 (AC_PROG_GNAT): Update conftest.adb to include
+ features required of the host gnat compiler.
+
+2022-06-01 David Seifert <soap@gentoo.org>
+
+ PR plugins/95648
+ * gcc-plugin.m4: Use libtool's $ac_cv_prog_OBJDUMP.
+
+2022-05-20 Christophe Lyon <christophe.lyon@arm.com>
+
+ * dfp.m4: Add aarch64 support.
+
+2022-05-03 Christophe Lyon <christophe.lyon@arm.com>
+
+ * dfp.m4: Add license header.
+
+2022-03-29 Chenghua Xu <xuchenghua@loongson.cn>
+ Lulu Cheng <chenglulu@loongson.cn>
+
+ * picflag.m4: Default add build option '-fpic' for LoongArch.
+
+2021-12-21 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ PR d/103528
+ * acx.m4 (ACX_PROG_GDC): Add check whether D compiler works.
+
+2021-12-16 H.J. Lu <hjl.tools@gmail.com>
+
+ Revert:
+ 2021-12-16 H.J. Lu <hjl.tools@gmail.com>
+
+ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
+
+2021-12-15 H.J. Lu <hjl.tools@gmail.com>
+
+ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
+
+2021-12-15 Iain Sandoe <iain@sandoe.co.uk>
+
+ * gcc-plugin.m4: Save and process CXXFLAGS.
+
+2021-11-30 Iain Buclaw <ibuclaw@gdcproject.org>
+
+ * acx.m4 (ACX_PROG_GDC): New m4 function.
+
+2021-09-19 Andrew Pinski <apinski@marvell.com>
+
+ PR bootstrap/102389
+ * bootstrap-lto-lean.mk: Handle NM like RANLIB AND AR.
+ * bootstrap-lto.mk: Likewise.
+
+2021-08-18 Iain Sandoe <iain@sandoe.co.uk>
+
+ * mh-darwin: Require a non-shared host configuration to
+ enable mdynamic-no-pic where that is supported.
+
+2021-07-09 Iain Sandoe <iain@sandoe.co.uk>
+
+ * mh-darwin: Make this specific to handling the
+ mdynamic-no-pic case.
+
+2021-06-14 Michael Forney <mforney@mforney.org>
+
+ * gettext.m4 (AM_GNU_GETTEXT): Skip checks for the internal
+ symbols _nl_msg_cat_cntr, _nl_domain_bindings, and
+ _nl_expand_alias, if __GNU_GETTEXT_SUPPORTED_REVISION is defined.
+ Backport of gettext serial 68 patch.
+
+2021-05-18 Mike Frysinger <vapier@gentoo.org>
+
+ * acinclude.m4 (CYG_AC_PATH_SIM, CYG_AC_PATH_DEVO): Delete.
+
+2021-05-03 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/99703
+ * cet.m4 (GCC_CET_HOST_FLAGS): Check if host supports multi-byte
+ NOPs.
+
+2021-04-13 Martin Storsjö <martin@martin.st>
+
+ * mh-mingw: Set __USE_MINGW_ACCESS in missed C++ flags
+ variables
+
2021-01-05 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR c++/98316