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 the regparm attribute shall be used for local functions
  52    (gcc on ix86 only).  */
  53 #undef  USE_REGPARMS
  54
  55 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  56 #undef  HAVE_GCC_GOTDATA
  57
  58 /* Define on SPARC if AS supports VIS3 instructions.  */
  59 #undef  HAVE_AS_VIS3_SUPPORT
  60
  61 /* Define if the linker supports the -z combreloc option.  */
  62 #undef  HAVE_Z_COMBRELOC
  63
  64 /* Define if _rtld_local structure should be forced into .sdata section.  */
  65 #undef  HAVE_SDATA_SECTION
  66
  67 /* Define if compiler supports AVX512.  */
  68 #undef  HAVE_AVX512_SUPPORT
  69
  70 /* Define if assembler supports AVX512DQ.  */
  71 #undef  HAVE_AVX512DQ_ASM_SUPPORT
  72
  73 /* Define if assembler supports vector instructions on S390.  */
  74 #undef  HAVE_S390_VX_ASM_SUPPORT
  75
  76 /* Define if gcc supports vector registers as clobbers in inline assembly
  77    on S390.  */
  78 #undef  HAVE_S390_VX_GCC_SUPPORT
  79
  80 /* Define if assembler supports Intel MPX.  */
  81 #undef  HAVE_MPX_SUPPORT
  82
  83 /* Define if the compiler\'s exception support is based on libunwind.  */
  84 #undef  HAVE_CC_WITH_LIBUNWIND
  85
  86 /* Define if the access to static and hidden variables is position independent
  87    and does not need relocations.  */
  88 #undef  PI_STATIC_AND_HIDDEN
  89
  90 /* Define this to disable the 'hidden_proto' et al macros in
  91    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
  92 #undef  NO_HIDDEN
  93
  94 /* Define this to disable lazy relocations in DSOs.  */
  95 #undef  BIND_NOW
  96
  97 /* AArch64 big endian ABI */
  98 #undef HAVE_AARCH64_BE
  99
 100
 101 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 102    a different, more efficient calling convention.  */
 103 #if defined USE_REGPARMS && !defined PROF
 104 # define internal_function __attribute__ ((regparm (3), stdcall))
 105 #endif
 106
 107 /* Linux specific: minimum supported kernel version.  */
 108 #undef  __LINUX_KERNEL_VERSION
 109
 110 /* Override abi-tags ABI version if necessary.  */
 111 #undef  __ABI_TAG_VERSION
 112
 113 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 114    getopt determine whether a parameter is a flag or not.  This features
 115    was disabled later since it caused trouble.  We are by default therefore
 116    disabling the support as well.  */
 117 #undef USE_NONOPTION_FLAGS
 118
 119 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 120 #undef  HAVE_MIG_RETCODE
 121
 122 /* Mach specific: define if the `host_page_size' RPC is available.  */
 123 #undef  HAVE_HOST_PAGE_SIZE
 124
 125 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 126 #undef  HAVE_I386_IO_PERM_MODIFY
 127
 128 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 129 #undef  HAVE_I386_SET_GDT
 130
 131 /* Defined of libidn is available.  */
 132 #undef HAVE_LIBIDN
 133
 134 /* Define if inlined system calls are available.  */
 135 #undef HAVE_INLINED_SYSCALLS
 136
 137 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 138 #undef HAVE_PPC_SECURE_PLT
 139
 140 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 141 #undef ENABLE_STACKGUARD_RANDOMIZE
 142
 143 /* Define if lock elision should be enabled by default.  */
 144 #undef ENABLE_LOCK_ELISION
 145
 146 /* Package description.  */
 147 #undef PKGVERSION
 148
 149 /* Bug reporting address.  */
 150 #undef REPORT_BUGS_TO
 151
 152 /* Define if multi-arch DSOs should be generated.  */
 153 #undef USE_MULTIARCH
 154
 155 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 156 #undef  NO_CTORS_DTORS_SECTIONS
 157
 158 /* Define if obsolete RPC code should be made available for user-level code
 159    to link against.  */
 160 #undef LINK_OBSOLETE_RPC
 161
 162 /* Define if Systemtap <sys/sdt.h> probes should be defined.  */
 163 #undef USE_STAP_PROBE
 164
 165 /* Define if library functions should try to contact the nscd daemon.  */
 166 #undef USE_NSCD
 167
 168 /* Define if the dynamic linker should consult an ld.so.cache file.  */
 169 #undef USE_LDCONFIG
 170
 171 /* Define to 1 if STT_GNU_IFUNC support actually works.  */
 172 #define HAVE_IFUNC 0
 173
 174 /* Define if the linker defines __ehdr_start.  */
 175 #undef HAVE_EHDR_START
 176
 177 /*
 178 \f */
 179
 180 #ifndef _LIBC
 181
 182 /* These symbols might be defined by some sysdeps configures.
 183    They are used only in miscellaneous generator programs, not
 184    in compiling libc itself.   */
 185
 186 /* sysdeps/generic/configure.ac */
 187 #undef  HAVE_PSIGNAL
 188
 189 /* sysdeps/unix/configure.ac */
 190 #undef  HAVE_STRERROR
 191
 192 /* sysdeps/unix/common/configure.ac */
 193 #undef  HAVE_SYS_SIGLIST
 194 #undef  HAVE__SYS_SIGLIST
 195 #undef  HAVE__CTYPE_
 196 #undef  HAVE___CTYPE_
 197 #undef  HAVE___CTYPE
 198 #undef  HAVE__CTYPE__
 199 #undef  HAVE__CTYPE
 200 #undef  HAVE__LOCP
 201
 202 #endif
 203
 204 /*
 205 \f */
 206
 207 #ifdef  _LIBC
 208
 209 /* The zic and zdump programs need these definitions.  */
 210
 211 #define HAVE_STRERROR   1
 212
 213 /* The locale code needs these definitions.  */
 214
 215 #define HAVE_REGEX 1
 216
 217 /* The ARM hard-float ABI is being used.  */
 218 #undef HAVE_ARM_PCS_VFP
 219
 220 /* The ARM movw/movt instructions using PC-relative relocs work right.  */
 221 #define ARM_PCREL_MOVW_OK 0
 222
 223 /* The pt_chown binary is being built and used by grantpt.  */
 224 #define HAVE_PT_CHOWN 0
 225
 226 /* Define if the compiler supports __builtin_trap without
 227    any external dependencies such as making a function call.  */
 228 #define HAVE_BUILTIN_TRAP 0
 229
 230 /* ports/sysdeps/mips/configure.in  */
 231 /* Define if using the IEEE 754-2008 NaN encoding on the MIPS target.  */
 232 #undef HAVE_MIPS_NAN2008
 233
 234 /* The PowerPC64 ELFv2 ABI is being used.  */
 235 #undef HAVE_ELFV2_ABI
 236
 237 /* PowerPC32 uses fcfid for integer to floating point conversions.  */
 238 #define HAVE_PPC_FCFID 0
 239
 240 /* PowerPC32 uses fctidz for floating point to long long conversions.  */
 241 #define HAVE_PPC_FCTIDZ 0
 242
 243 #endif