+2010-04-27 Dave Korn <dave.korn.cygwin@gmail.com>
+
+ PR lto/42776
+ * configure.ac (gcc_cv_as_section_has_align): Set if installed
+ binutils supports extended .section directive needed by LTO, or
+ warn if older binutils found.
+ (LTO_BINARY_READER): New AC_SUBST'd variable.
+ (LTO_USE_LIBELF): Likewise.
+ * gcc/config.gcc (lto_binary_reader): New target-specific configure
+ variable.
+ * gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
+ (LTO_USE_LIBELF): Likewise.
+ * configure: Regenerate.
+
+ * collect2.c (is_elf): Rename from this ...
+ (is_elf_or_coff): ... to this, and recognize and allow i386 COFF
+ object files in addition to ELF-formatted ones.
+ (scan_prog_file): Caller updated. Also allow for LTO info marker
+ symbol to be prefixed or not by an extra underscore.
+
+ * config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
+ * config/i386/winnt.c: Also #include lto-streamer.h
+ (i386_pe_asm_named_section): Specify 1-byte section alignment for
+ LTO named sections.
+ (i386_pe_asm_output_aligned_decl_common): Add comment.
+ (i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
+
2010-04-27 Hans-Peter Nilsson <hp@bitrange.com>
PR target/43889