message: modify linux platform defs
diff: * Define overrides for non-standard allocator-related functions if they are
  * present on the system.
  */
  -#if !defined(USE_MUSL)
  #define JEMALLOC_OVERRIDE___LIBC_CALLOC
  #define JEMALLOC_OVERRIDE___LIBC_FREE
  #define JEMALLOC_OVERRIDE___LIBC_MALLOC
  #define JEMALLOC_OVERRIDE___LIBC_MEMALIGN
  #define JEMALLOC_OVERRIDE___LIBC_REALLOC
  #define JEMALLOC_OVERRIDE___LIBC_VALLOC
  -#endif
  +#define JEMALLOC_OVERRIDE___LIBC_PVALLOC
  /* #undef JEMALLOC_OVERRIDE___POSIX_MEMALIGN */
  /*
  #define CPU_SPINWAIT __asm__ volatile("pause")
  /* 1 if CPU_SPINWAIT is defined, 0 otherwise. */
  #define HAVE_CPU_SPINWAIT 1
  -#define HAVE_RDTSCP 1
  /*
  * Number of significant bits in virtual addresses. This may be less than the
  /*
  * Defined if secure_getenv(3) is available.
  */
  -/* #undef JEMALLOC_HAVE_SECURE_GETENV */
  +#define JEMALLOC_HAVE_SECURE_GETENV
  /*
  * Defined if issetugid(2) is available.
  /* #undef JEMALLOC_PROF_GCC */
  /* JEMALLOC_PAGEID enabled page id */
  -#define JEMALLOC_PAGEID
  +/* #undef JEMALLOC_PAGEID */
  /* JEMALLOC_HAVE_PRCTL checks prctl */
  #define JEMALLOC_HAVE_PRCTL
  /* #undef JEMALLOC_EXPORT */
  /* config.malloc_conf options string. */
  -#define JEMALLOC_CONFIG_MALLOC_CONF "@JEMALLOC_CONFIG_MALLOC_CONF@"
  +#define JEMALLOC_CONFIG_MALLOC_CONF ""
  /* If defined, jemalloc takes the malloc/free/etc. symbol names. */
  #define JEMALLOC_IS_MALLOC
  /* #undef JEMALLOC_OPT_SAFETY_CHECKS */
  /* Is C++ support being built? */
  -/* #undef JEMALLOC_ENABLE_CXX */
  +#define JEMALLOC_ENABLE_CXX
  /* Performs additional size checks when defined. */
  /* #undef JEMALLOC_OPT_SIZE_CHECKS */
  