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 if weak symbols are available via the `.weak' directive.  */
  22 #undef  HAVE_ASM_WEAK_DIRECTIVE
  23
  24 /* Define if weak symbols are available via the `.weakext' directive.  */
  25 #undef  HAVE_ASM_WEAKEXT_DIRECTIVE
  26
  27 /* Define to the assembler line separator character for multiple
  28    assembler instructions per line.  Default is `;'  */
  29 #undef ASM_LINE_SEP
  30
  31 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  32 #undef  HAVE_SECTION_QUOTES
  33
  34 /* Define if the assembler supports the `.set' directive.  */
  35 #undef  HAVE_ASM_SET_DIRECTIVE
  36
  37 /* Define if the assembler supports the gnu_unique_object symbol type.  */
  38 #undef  HAVE_ASM_UNIQUE_OBJECT
  39
  40 /* On powerpc64, use overlapping .opd entries.  */
  41 #undef  USE_PPC64_OVERLAPPING_OPD
  42
  43 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  44 #undef  EXPORT_UNWIND_FIND_FDE
  45
  46 /* Define if using ELF and the assembler supports the `.previous'
  47    directive.  */
  48 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  49
  50 /* Define if using ELF and the assembler supports the `.popsection'
  51    directive.  */
  52 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  53
  54 /* Define if static NSS modules are wanted.  */
  55 #undef  DO_STATIC_NSS
  56
  57 /* Define if the compiler supports __builtin_memset.  */
  58 #undef  HAVE_BUILTIN_MEMSET
  59
  60 /* Define if compiler accepts -ftree-loop-distribute-patterns.  */
  61 #undef  HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
  62
  63 /* Define if the regparm attribute shall be used for local functions
  64    (gcc on ix86 only).  */
  65 #undef  USE_REGPARMS
  66
  67 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  68 #undef  HAVE_GCC_GOTDATA
  69
  70 /* Define on SPARC if AS supports VIS3 instructions.  */
  71 #undef  HAVE_AS_VIS3_SUPPORT
  72
  73 /* Define if the linker supports the -z combreloc option.  */
  74 #undef  HAVE_Z_COMBRELOC
  75
  76 /* Define if _rtld_local structure should be forced into .sdata section.  */
  77 #undef  HAVE_SDATA_SECTION
  78
  79 /* Define if gcc supports SSE4.  */
  80 #undef  HAVE_SSE4_SUPPORT
  81
  82 /* Define if gcc supports AVX.  */
  83 #undef  HAVE_AVX_SUPPORT
  84
  85 /* Define if gcc supports VEX encoding.  */
  86 #undef  HAVE_SSE2AVX_SUPPORT
  87
  88 /* Define if compiler supports AVX512.  */
  89 #undef  HAVE_AVX512_SUPPORT
  90
  91 /* Define if assembler supports AVX512.  */
  92 #undef  HAVE_AVX512_ASM_SUPPORT
  93
  94 /* Define if assembler supports Intel MPX.  */
  95 #undef  HAVE_MPX_SUPPORT
  96
  97 /* Define if gcc supports FMA4.  */
  98 #undef  HAVE_FMA4_SUPPORT
  99
 100 /* Define if gcc supports AVX2.  */
 101 #undef  HAVE_AVX2_SUPPORT
 102
 103 /* Define if the compiler\'s exception support is based on libunwind.  */
 104 #undef  HAVE_CC_WITH_LIBUNWIND
 105
 106 /* Define if the access to static and hidden variables is position independent
 107    and does not need relocations.  */
 108 #undef  PI_STATIC_AND_HIDDEN
 109
 110 /* Define this to disable the 'hidden_proto' et al macros in
 111    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 112 #undef  NO_HIDDEN
 113
 114 /* AArch64 big endian ABI */
 115 #undef HAVE_AARCH64_BE
 116
 117
 118 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 119    a different, more efficient calling convention.  */
 120 #if defined USE_REGPARMS && !defined PROF
 121 # define internal_function __attribute__ ((regparm (3), stdcall))
 122 #endif
 123
 124 /* Linux specific: minimum supported kernel version.  */
 125 #undef  __LINUX_KERNEL_VERSION
 126
 127 /* Override abi-tags ABI version if necessary.  */
 128 #undef  __ABI_TAG_VERSION
 129
 130 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 131    getopt determine whether a parameter is a flag or not.  This features
 132    was disabled later since it caused trouble.  We are by default therefore
 133    disabling the support as well.  */
 134 #undef USE_NONOPTION_FLAGS
 135
 136 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 137 #undef  HAVE_MIG_RETCODE
 138
 139 /* Mach specific: define if the `host_page_size' RPC is available.  */
 140 #undef  HAVE_HOST_PAGE_SIZE
 141
 142 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 143 #undef  HAVE_I386_IO_PERM_MODIFY
 144
 145 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 146 #undef  HAVE_I386_SET_GDT
 147
 148 /* Defined if forced unwind support is available.  */
 149 #undef  HAVE_FORCED_UNWIND
 150
 151 /* Defined of libidn is available.  */
 152 #undef HAVE_LIBIDN
 153
 154 /* Define if inlined system calls are available.  */
 155 #undef HAVE_INLINED_SYSCALLS
 156
 157 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 158 #undef HAVE_PPC_SECURE_PLT
 159
 160 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 161 #undef ENABLE_STACKGUARD_RANDOMIZE
 162
 163 /* Define if lock elision should be enabled by default.  */
 164 #undef ENABLE_LOCK_ELISION
 165
 166 /* Package description.  */
 167 #undef PKGVERSION
 168
 169 /* Bug reporting address.  */
 170 #undef REPORT_BUGS_TO
 171
 172 /* Define if multi-arch DSOs should be generated.  */
 173 #undef USE_MULTIARCH
 174
 175 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 176 #undef  NO_CTORS_DTORS_SECTIONS
 177
 178 /* Define if obsolete RPC code should be made available for user-level code
 179    to link against.  */
 180 #undef LINK_OBSOLETE_RPC
 181
 182 /* Define if Systemtap <sys/sdt.h> probes should be defined.  */
 183 #undef USE_STAP_PROBE
 184
 185 /* Define if library functions should try to contact the nscd daemon.  */
 186 #undef USE_NSCD
 187
 188 /* Define if the dynamic linker should consult an ld.so.cache file.  */
 189 #undef USE_LDCONFIG
 190
 191 /* Define to 1 if STT_GNU_IFUNC support actually works.  */
 192 #define HAVE_IFUNC 0
 193
 194 /* Define if linux/fanotify.h is available.  */
 195 #undef HAVE_LINUX_FANOTIFY_H
 196
 197 /* Define if the linker defines __ehdr_start.  */
 198 #undef HAVE_EHDR_START
 199
 200 /*
 201 \f */
 202
 203 #ifndef _LIBC
 204
 205 /* These symbols might be defined by some sysdeps configures.
 206    They are used only in miscellaneous generator programs, not
 207    in compiling libc itself.   */
 208
 209 /* sysdeps/generic/configure.ac */
 210 #undef  HAVE_PSIGNAL
 211
 212 /* sysdeps/unix/configure.ac */
 213 #undef  HAVE_STRERROR
 214
 215 /* sysdeps/unix/common/configure.ac */
 216 #undef  HAVE_SYS_SIGLIST
 217 #undef  HAVE__SYS_SIGLIST
 218 #undef  HAVE__CTYPE_
 219 #undef  HAVE___CTYPE_
 220 #undef  HAVE___CTYPE
 221 #undef  HAVE__CTYPE__
 222 #undef  HAVE__CTYPE
 223 #undef  HAVE__LOCP
 224
 225 #endif
 226
 227 /*
 228 \f */
 229
 230 #ifdef  _LIBC
 231
 232 /* The zic and zdump programs need these definitions.  */
 233
 234 #define HAVE_STRERROR   1
 235
 236 /* The locale code needs these definitions.  */
 237
 238 #define HAVE_REGEX 1
 239
 240 /* The ARM hard-float ABI is being used.  */
 241 #undef HAVE_ARM_PCS_VFP
 242
 243 /* The ARM movw/movt instructions using PC-relative relocs work right.  */
 244 #define ARM_PCREL_MOVW_OK 0
 245
 246 /* The pt_chown binary is being built and used by grantpt.  */
 247 #define HAVE_PT_CHOWN 0
 248
 249 /* Define if the compiler supports __builtin_trap without
 250    any external dependencies such as making a function call.  */
 251 #define HAVE_BUILTIN_TRAP 0
 252
 253 /* ports/sysdeps/mips/configure.in  */
 254 /* Define if using the IEEE 754-2008 NaN encoding on the MIPS target.  */
 255 #undef HAVE_MIPS_NAN2008
 256
 257 /* The PowerPC64 ELFv2 ABI is being used.  */
 258 #undef HAVE_ELFV2_ABI
 259
 260 #endif