Log message:
gcc7: update to 7.3.0

Local changes:
Remove patch hunks merged upstream (non-c99 compatibility cabs workaround,
linking to libc by default on netbsd).

GCC changes:
Added code generation options to mitigate Spectre variant 2 (CVE-2017-5715)
for the powerpc and x86 targets.

RTEMS: Support has been added for Epiphany target.

List of bugs fixed:
https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&list_id=199567&resolution=FIXED&target_milestone=7.3

Log message:
gcc{5,6,7}: Disable fixincludes on SmartOS like gcc49.

Log message:
reset maintainer

Log message:
gcc7: update to 7.2.0

SPARC
    Support for the SPARC M8 processor has been added.
    The switches -mfix-ut700 and -mfix-gr712rc have been added to work around an \ 
erratum in LEON3FT processors.
    Use of the Floating-point Multiply Single to Double (FsMULd) instruction can \ 
now be controlled by the -mfsmuld and -fno-fsmuld options.

RTEMS
    The Ada run-time support uses now thread-local storage (TLS).
    Support for RISC-V has been added.
    Support for 64-bit PowerPC using the ELFv2 ABI with 64-bit long double has \ 
been added.

Bug fixes: \ 
https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=7.2

Log message:
Pass relro linker flags.

Fixes RELRO for most binaries, except for libgcc_s.so.

Log message:
Fix a typo (an extra S) in the make variable GCC7_DIST_VERSION.  This makes
it consistent with all other analogous variables, which are used in the
process of selecting an appropriate version of gcc.

Log message:
gcc{48,49,5,7}: on netbsd only, bump libstdc++ major to 7.
bump pkgrevision.

while here, synchronize libssp comment to a clearer one.

bump gcc*-lib revision to be one higher.

Log message:
Explicitly disable mkostemp on SunOS.  It was shipped as part of libc for
a while without the corresponding entry in stdlib.h, thus falling foul of
-Werror=implicit-function-declaration checks.

Log message:
On Darwin you must not have duplicate symbols

Log message:
Added CONFIGURE_ARGS.Darwin