Gerald Pfeifer d39ad836d1 Update lang/gcc and hence the default version of GCC in the Ports ... Collection (requested by USE_GCC=yes and various USES=compiler invocations) from GCC 4.9.4 to GCC 5.4. files/patch-arm-support and files/patch-gcc_system.h have become obsolete. New patches files/patch-arm-unwind-cxx-support and files/patch-libc++ help support arm targets and new libc++ in base. ONLY_FOR_ARCHS now also includes arm. A new option GRAPHITE_DESC, off by default for now, adds support for Graphite loop optimizations. Finally, conflicts with other lang/gcc* ports are adjusted suitably. In terms of changes for users, this upgrade brings the following: The default mode for C is now -std=gnu11 instead of -std=gnu89. New warning options -Wc90-c99-compat and -Wc99-c11-compat may prove useful on that front. The C++ front end now has full C++14 language support including C++14 variable templates, C++14 aggregates with non-static data member initializers, C++14 extended constexpr, and more. The Standard C++ Library (libstdc++) has full C++11 support and experimental full C++14 support. It uses a new ABI by default. There have been significant improvements to inter-procedural optimizations and link-time optimization such as One Definition Rule based merging of C++ types as well as register allocation. OpenMP 4.0 specification offloading features are now supported by the C, C++, and Fortran compilers. Cilk Plus, an extension to the C and C++ languages to support data and task parallelism, has been added as well. New warning options -Wswitch-bool, -Wlogical-not-parentheses, -Wbool-compare and -Wsizeof-array-argument may prove useful as may new preprocessor directives __has_include, __has_include_next, and __has_attribute. GCC can now be built as a shared library for embedding in other processes (such as interpreters), suitable for Just-In-Time compilation to machine code. This provides a C API and a C++ wrapper API. Many code generation improvements for AArch64, ARM, support for AVX-512{BW,DQ,VL,IFMA,VBMI} and Intel MPX on x86-64, and generally improvements on many targets. The Local Register Allocator (LRA) now contains a rematerialization subpass and is able to reuse the PIC hard register on x86/x86-64 to improve performance of position independent code. https://gcc.gnu.org/gcc-5/changes.html has a more extensive set of changes and https://gcc.gnu.org/gcc-5/porting_to.html has a solid overview of issue you may encountering porting to this new version. PR: 216707, 218125 Tested by: antoine (-exp runs) Supported by: jbeich, tcberner, and others		2017-04-01 15:03:21 +00:00
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files	Update lang/gcc and hence the default version of GCC in the Ports	2017-04-01 15:03:21 +00:00
distinfo	Update lang/gcc and hence the default version of GCC in the Ports	2017-04-01 15:03:21 +00:00
Makefile	Update lang/gcc and hence the default version of GCC in the Ports	2017-04-01 15:03:21 +00:00
pkg-descr	Update lang/gcc and hence the default version of GCC in the Ports	2017-04-01 15:03:21 +00:00
pkg-plist	Update lang/gcc and hence the default version of GCC in the Ports	2017-04-01 15:03:21 +00:00