config.h.in

   1 #if !defined IS_IN_build && !defined __ASSEMBLER__ && !defined _ISOMAC \
   2     && !defined __OPTIMIZE__
   3 # error "glibc cannot be compiled without optimization"
   4 #endif
   5
   6 /* Another evil option when it comes to compiling the C library is
   7    --ffast-math since it alters the ABI.  */
   8 #if defined __FAST_MATH__ && !defined TEST_FAST_MATH
   9 # error "glibc must not be compiled with -ffast-math"
  10 #endif
  11
  12 /* Define if building with SELinux support.  Set by --with-selinux.  */
  13 #undef  HAVE_SELINUX
  14
  15 /* Defined if building with SELinux support & audit libs are detected. */
  16 #undef  HAVE_LIBAUDIT
  17
  18 /* Defined if building with SELinux support & libcap libs are detected.  */
  19 #undef  HAVE_LIBCAP
  20
  21 /* Define to the assembler line separator character for multiple
  22    assembler instructions per line.  Default is `;'  */
  23 #undef ASM_LINE_SEP
  24
  25 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  26 #undef  HAVE_SECTION_QUOTES
  27
  28 /* Define if the assembler supports the `.set' directive.  */
  29 #undef  HAVE_ASM_SET_DIRECTIVE
  30
  31 /* On powerpc64, use overlapping .opd entries.  */
  32 #undef  USE_PPC64_OVERLAPPING_OPD
  33
  34 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  35 #undef  EXPORT_UNWIND_FIND_FDE
  36
  37 /* Define if static NSS modules are wanted.  */
  38 #undef  DO_STATIC_NSS
  39
  40 /* Assume that the compiler supports __builtin_expect.
  41    This macro is necessary for proper compilation of code
  42    shared between GNU libc and GNU gettext projects.  */
  43 #define HAVE_BUILTIN_EXPECT 1
  44
  45 /* Define if the compiler supports __builtin_memset.  */
  46 #undef  HAVE_BUILTIN_MEMSET
  47
  48 /* Define if compiler accepts -ftree-loop-distribute-patterns.  */
  49 #undef  HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
  50
  51 /* Define if compiler accepts -fno-stack-protector in an
  52    __attribute__ ((__optimize__)).  */
  53 #undef  HAVE_CC_NO_STACK_PROTECTOR
  54
  55 /* The level of stack protection in use for glibc as a whole.
  56    May be overridden on a file-by-file basis.  */
  57 #ifndef STACK_PROTECTOR_LEVEL
  58 #undef  STACK_PROTECTOR_LEVEL
  59 #endif
  60
  61 /* Define if the regparm attribute shall be used for local functions
  62    (gcc on ix86 only).  */
  63 #undef  USE_REGPARMS
  64
  65 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  66 #undef  HAVE_GCC_GOTDATA
  67
  68 /* Define on SPARC if AS supports VIS3 instructions.  */
  69 #undef  HAVE_AS_VIS3_SUPPORT
  70
  71 /* Define if the linker supports the -z combreloc option.  */
  72 #undef  HAVE_Z_COMBRELOC
  73
  74 /* Define if _rtld_local structure should be forced into .sdata section.  */
  75 #undef  HAVE_SDATA_SECTION
  76
  77 /* Define if compiler supports AVX512.  */
  78 #undef  HAVE_AVX512_SUPPORT
  79
  80 /* Define if assembler supports AVX512DQ.  */
  81 #undef  HAVE_AVX512DQ_ASM_SUPPORT
  82
  83 /* Define if assembler supports z196 zarch instructions as default on S390.  */
  84 #undef  HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
  85
  86 /* Define if assembler supports vector instructions on S390.  */
  87 #undef  HAVE_S390_VX_ASM_SUPPORT
  88
  89 /* Define if gcc supports vector registers as clobbers in inline assembly
  90    on S390.  */
  91 #undef  HAVE_S390_VX_GCC_SUPPORT
  92
  93 /* Define if assembler supports Intel MPX.  */
  94 #undef  HAVE_MPX_SUPPORT
  95
  96 /* Define if the compiler\'s exception support is based on libunwind.  */
  97 #undef  HAVE_CC_WITH_LIBUNWIND
  98
  99 /* Define if the access to static and hidden variables is position independent
 100    and does not need relocations.  */
 101 #undef  PI_STATIC_AND_HIDDEN
 102
 103 /* Define this to disable the 'hidden_proto' et al macros in
 104    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 105 #undef  NO_HIDDEN
 106
 107 /* Define this to disable lazy relocations in DSOs.  */
 108 #undef  BIND_NOW
 109
 110 /* AArch64 big endian ABI */
 111 #undef HAVE_AARCH64_BE
 112
 113
 114 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 115    a different, more efficient calling convention.  */
 116 #if defined USE_REGPARMS && !defined PROF
 117 # define internal_function __attribute__ ((regparm (3), stdcall))
 118 #endif
 119
 120 /* Linux specific: minimum supported kernel version.  */
 121 #undef  __LINUX_KERNEL_VERSION
 122
 123 /* Override abi-tags ABI version if necessary.  */
 124 #undef  __ABI_TAG_VERSION
 125
 126 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 127    getopt determine whether a parameter is a flag or not.  This features
 128    was disabled later since it caused trouble.  We are by default therefore
 129    disabling the support as well.  */
 130 #undef USE_NONOPTION_FLAGS
 131
 132 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 133 #undef  HAVE_MIG_RETCODE
 134
 135 /* Mach specific: define if the `host_page_size' RPC is available.  */
 136 #undef  HAVE_HOST_PAGE_SIZE
 137
 138 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 139 #undef  HAVE_I386_IO_PERM_MODIFY
 140
 141 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 142 #undef  HAVE_I386_SET_GDT
 143
 144 /* Defined of libidn is available.  */
 145 #undef HAVE_LIBIDN
 146
 147 /* Define if inlined system calls are available.  */
 148 #undef HAVE_INLINED_SYSCALLS
 149
 150 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 151 #undef HAVE_PPC_SECURE_PLT
 152
 153 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 154 #undef ENABLE_STACKGUARD_RANDOMIZE
 155
 156 /* Define if lock elision should be enabled by default.  */
 157 #undef ENABLE_LOCK_ELISION
 158
 159 /* Package description.  */
 160 #undef PKGVERSION
 161
 162 /* Bug reporting address.  */
 163 #undef REPORT_BUGS_TO
 164
 165 /* Define if multi-arch DSOs should be generated.  */
 166 #undef USE_MULTIARCH
 167
 168 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 169 #undef  NO_CTORS_DTORS_SECTIONS
 170
 171 /* Define if obsolete RPC code should be made available for user-level code
 172    to link against.  */
 173 #undef LINK_OBSOLETE_RPC
 174
 175 /* Define if obsolete libnsl code should be made available for user-level
 176    code to link against.  */
 177 #undef LINK_OBSOLETE_NSL
 178
 179 /* Define if Systemtap <sys/sdt.h> probes should be defined.  */
 180 #undef USE_STAP_PROBE
 181
 182 /* Define if library functions should try to contact the nscd daemon.  */
 183 #undef USE_NSCD
 184
 185 /* Define if the dynamic linker should consult an ld.so.cache file.  */
 186 #undef USE_LDCONFIG
 187
 188 /* Define to 1 if STT_GNU_IFUNC support actually works.  */
 189 #define HAVE_IFUNC 0
 190
 191 /* Define if gcc supports attribute ifunc.  */
 192 #undef HAVE_GCC_IFUNC
 193
 194 /* Define if the linker defines __ehdr_start.  */
 195 #undef HAVE_EHDR_START
 196
 197 /*
 198 \f */
 199
 200 #ifndef _LIBC
 201
 202 /* These symbols might be defined by some sysdeps configures.
 203    They are used only in miscellaneous generator programs, not
 204    in compiling libc itself.   */
 205
 206 /* sysdeps/generic/configure.ac */
 207 #undef  HAVE_PSIGNAL
 208
 209 /* sysdeps/unix/configure.ac */
 210 #undef  HAVE_STRERROR
 211
 212 /* sysdeps/unix/common/configure.ac */
 213 #undef  HAVE_SYS_SIGLIST
 214 #undef  HAVE__SYS_SIGLIST
 215 #undef  HAVE__CTYPE_
 216 #undef  HAVE___CTYPE_
 217 #undef  HAVE___CTYPE
 218 #undef  HAVE__CTYPE__
 219 #undef  HAVE__CTYPE
 220 #undef  HAVE__LOCP
 221
 222 #endif
 223
 224 /*
 225 \f */
 226
 227 #ifdef  _LIBC
 228
 229 /* The zic and zdump programs need these definitions.  */
 230
 231 #define HAVE_STRERROR   1
 232
 233 /* The locale code needs these definitions.  */
 234
 235 #define HAVE_REGEX 1
 236
 237 /* The ARM hard-float ABI is being used.  */
 238 #undef HAVE_ARM_PCS_VFP
 239
 240 /* The ARM movw/movt instructions using PC-relative relocs work right.  */
 241 #define ARM_PCREL_MOVW_OK 0
 242
 243 /* The pt_chown binary is being built and used by grantpt.  */
 244 #define HAVE_PT_CHOWN 0
 245
 246 /* Define if the compiler supports __builtin_trap without
 247    any external dependencies such as making a function call.  */
 248 #define HAVE_BUILTIN_TRAP 0
 249
 250 /* ports/sysdeps/mips/configure.in  */
 251 /* Define if using the IEEE 754-2008 NaN encoding on the MIPS target.  */
 252 #undef HAVE_MIPS_NAN2008
 253
 254 /* The PowerPC64 ELFv2 ABI is being used.  */
 255 #undef HAVE_ELFV2_ABI
 256
 257 /* PowerPC32 uses fcfid for integer to floating point conversions.  */
 258 #define HAVE_PPC_FCFID 0
 259
 260 /* PowerPC32 uses fctidz for floating point to long long conversions.  */
 261 #define HAVE_PPC_FCTIDZ 0
 262
 263 /* Build glibc with tunables support.  */
 264 #define HAVE_TUNABLES 0
 265
 266 /* Some compiler options may now allow to use ebp in __asm__ (used mainly
 267    in i386 6 argument syscall issue).  */
 268 #define CAN_USE_REGISTER_ASM_EBP 0
 269
 270 #endif