libsanitizer/ * acinclude.m4: Add enable.m4 and cet.m4. * Makefile.in: Regenerate. * asan/Makefile.am: Update AM_CXXFLAGS. * asan/Makefile.in: Regenerate. * configure: Likewise. * configure.ac: Set CET_FLAGS. Update EXTRA_CFLAGS, EXTRA_CXXFLAGS, EXTRA_ASFLAGS. * interception/Makefile.am: Update AM_CXXFLAGS. * interception/Makefile.in: Regenerate. * libbacktrace/Makefile.am: Update AM_CFLAGS, AM_CXXFLAGS. * libbacktrace/Makefile.in: Regenerate. * lsan/Makefile.am: Update AM_CXXFLAGS. * lsan/Makefile.in: Regenerate. * sanitizer_common/Makefile.am: Update AM_CXXFLAGS, AM_CCASFLAGS. * sanitizer_common/sanitizer_linux_x86_64.S: Include cet.h. Add _CET_ENDBR macro. * sanitizer_common/Makefile.in: Regenerate. * tsan/Makefile.am: Update AM_CXXFLAGS. * tsan/Makefile.in: Regenerate. * tsan/tsan_rtl_amd64.S Include cet.h. Add _CET_ENDBR macro. * ubsan/Makefile.am: Update AM_CXXFLAGS. * ubsan/Makefile.in: Regenerate. From-SVN: r254896