gcc: gcc 4.9.x disable libsanitize

gcc 4.9.x enables building of libsanitize

- libsanitize needs some headers that are not available
in uclibc (netrom/netrom.h)

according to buildroot project:
- build fail with musl
- need wordexp with uclibc which increases uclibc size
http://git.buildroot.net/buildroot/commit/?id=5f4d658d888b539de9a6247ae5b1a0999de5d4ec
http://git.buildroot.net/buildroot/commit/?id=554e29e267e6b36a0fd78c82cbad2c82d939eb7f

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42767 3c298f89-4303-0410-b956-a3cf2f4a3e73

gcc: fix up displayed version after r37179

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37180 3c298f89-4303-0410-b956-a3cf2f4a3e73

gcc: do not delete DATESTAMP and DEV-PHASE version info (fixes __GLIBCXX__ definition)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37179 3c298f89-4303-0410-b956-a3cf2f4a3e73

[toolchain/gcc]: remove the old (and nonworking) hack and identify our patched GCCs properly

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36189 3c298f89-4303-0410-b956-a3cf2f4a3e73

build: add the + token to any commands that can pass through the jobserver, fixes parallel build on some systems

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33523 3c298f89-4303-0410-b956-a3cf2f4a3e73

gcc: enable parallel builds

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33444 3c298f89-4303-0410-b956-a3cf2f4a3e73

toolchain: install libgcc for minimal gcc, needed by newer eglibc versions

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32100 3c298f89-4303-0410-b956-a3cf2f4a3e73

gcc: split up the build process into three distinct stages (minimal, initial, final), to clean up the dependency handling nastiness and to improve support for rebuilding parts of the toolchain

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22319 3c298f89-4303-0410-b956-a3cf2f4a3e73