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 if CFI directives are available.  */
  28 #undef  HAVE_ASM_CFI_DIRECTIVES
  29
  30 /* Define to the assembler line separator character for multiple
  31    assembler instructions per line.  Default is `;'  */
  32 #undef ASM_LINE_SEP
  33
  34 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  35 #undef  HAVE_SECTION_QUOTES
  36
  37 /* Define if the assembler supports the `.set' directive.  */
  38 #undef  HAVE_ASM_SET_DIRECTIVE
  39
  40 /* Define to the name of the assembler's directive for
  41    declaring a symbol global (default `.globl').  */
  42 #undef  ASM_GLOBAL_DIRECTIVE
  43
  44 /* Define to the prefix before `object' or `function' in the
  45    assembler's `.type' directive, if it has one.  */
  46 #undef  ASM_TYPE_DIRECTIVE_PREFIX
  47
  48 /* Define if the assembler supports the gnu_unique_object symbol type.  */
  49 #undef  HAVE_ASM_UNIQUE_OBJECT
  50
  51 /* Define a symbol_name as a global .symbol_name for ld.  */
  52 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  53
  54 /* On powerpc64, use overlapping .opd entries.  */
  55 #undef  USE_PPC64_OVERLAPPING_OPD
  56
  57 /* Define if the assembler generates debugging information directly.  */
  58 #undef  HAVE_CPP_ASM_DEBUGINFO
  59
  60 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  61 #undef  EXPORT_UNWIND_FIND_FDE
  62
  63 /* Define if using ELF and the assembler supports the `.previous'
  64    directive.  */
  65 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  66
  67 /* Define if using ELF and the assembler supports the `.popsection'
  68    directive.  */
  69 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  70
  71 /* Define if versioning of the library is wanted.  */
  72 #undef  DO_VERSIONING
  73
  74 /* Defined to the oldest ABI we support, like 2.1.  */
  75 #undef GLIBC_OLDEST_ABI
  76
  77 /* Define if static NSS modules are wanted.  */
  78 #undef  DO_STATIC_NSS
  79
  80 /* Define if the compiler supports __builtin_memset.  */
  81 #undef  HAVE_BUILTIN_MEMSET
  82
  83 /* Define if the regparm attribute shall be used for local functions
  84    (gcc on ix86 only).  */
  85 #undef  USE_REGPARMS
  86
  87 /* Defined on PowerPC if the GCC being used has a problem with clobbering
  88    certain registers (CR0, MQ, CTR, LR) in asm statements.  */
  89 #undef  BROKEN_PPC_ASM_CR0
  90
  91 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  92 #undef  HAVE_GCC_GOTDATA
  93
  94 /* Define on SPARC if AS supports VIS3 instructions.  */
  95 #undef  HAVE_AS_VIS3_SUPPORT
  96
  97 /* Define if the linker supports the -z combreloc option.  */
  98 #undef  HAVE_Z_COMBRELOC
  99
 100 /* Define if _rtld_local structure should be forced into .sdata section.  */
 101 #undef  HAVE_SDATA_SECTION
 102
 103 /* Define if gcc supports SSE4.  */
 104 #undef  HAVE_SSE4_SUPPORT
 105
 106 /* Define if gcc supports AVX.  */
 107 #undef  HAVE_AVX_SUPPORT
 108
 109 /* Define if gcc supports VEX encoding.  */
 110 #undef  HAVE_SSE2AVX_SUPPORT
 111
 112 /* Define if gcc supports FMA4.  */
 113 #undef  HAVE_FMA4_SUPPORT
 114
 115 /* Define if the compiler\'s exception support is based on libunwind.  */
 116 #undef  HAVE_CC_WITH_LIBUNWIND
 117
 118 /* Define if the access to static and hidden variables is position independent
 119    and does not need relocations.  */
 120 #undef  PI_STATIC_AND_HIDDEN
 121
 122 /* Define this to disable the 'hidden_proto' et al macros in
 123    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 124 #undef  NO_HIDDEN
 125
 126
 127 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 128    a different, more efficient calling convention.  */
 129 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 130 # define internal_function __attribute__ ((regparm (3), stdcall))
 131 #endif
 132
 133 /* Linux specific: minimum supported kernel version.  */
 134 #undef  __LINUX_KERNEL_VERSION
 135
 136 /* Override abi-tags ABI version if necessary.  */
 137 #undef  __ABI_TAG_VERSION
 138
 139 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 140    getopt determine whether a parameter is a flag or not.  This features
 141    was disabled later since it caused trouble.  We are by default therefore
 142    disabling the support as well.  */
 143 #undef USE_NONOPTION_FLAGS
 144
 145 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 146 #undef  HAVE_MIG_RETCODE
 147
 148 /* Mach specific: define if the `host_page_size' RPC is available.  */
 149 #undef  HAVE_HOST_PAGE_SIZE
 150
 151 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 152 #undef  HAVE_I386_IO_PERM_MODIFY
 153
 154 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 155 #undef  HAVE_I386_SET_GDT
 156
 157 /* Defined if forced unwind support is available.  */
 158 #undef  HAVE_FORCED_UNWIND
 159
 160 /* Defined of libidn is available.  */
 161 #undef HAVE_LIBIDN
 162
 163 /* Define if inlined system calls are available.  */
 164 #undef HAVE_INLINED_SYSCALLS
 165
 166 /* Define if your assembler and linker support R_PPC_REL16* relocs.  */
 167 #undef HAVE_ASM_PPC_REL16
 168
 169 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 170 #undef HAVE_PPC_SECURE_PLT
 171
 172 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 173 #undef ENABLE_STACKGUARD_RANDOMIZE
 174
 175 /* Define if multi-arch DSOs should be generated.  */
 176 #undef USE_MULTIARCH
 177
 178 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 179 #undef  NO_CTORS_DTORS_SECTIONS
 180
 181 /* Define if obsolete RPC code should be made available for user-level code
 182    to link against.  */
 183 #undef LINK_OBSOLETE_RPC
 184
 185 /* Define if Systemtap <sys/sdt.h> probes should be defined.  */
 186 #undef USE_STAP_PROBE
 187
 188 /*
 189 \f */
 190
 191 #ifndef _LIBC
 192
 193 /* These symbols might be defined by some sysdeps configures.
 194    They are used only in miscellaneous generator programs, not
 195    in compiling libc itself.   */
 196
 197 /* sysdeps/generic/configure.in */
 198 #undef  HAVE_PSIGNAL
 199
 200 /* sysdeps/unix/configure.in */
 201 #undef  HAVE_STRERROR
 202
 203 /* sysdeps/unix/common/configure.in */
 204 #undef  HAVE_SYS_SIGLIST
 205 #undef  HAVE__SYS_SIGLIST
 206 #undef  HAVE__CTYPE_
 207 #undef  HAVE___CTYPE_
 208 #undef  HAVE___CTYPE
 209 #undef  HAVE__CTYPE__
 210 #undef  HAVE__CTYPE
 211 #undef  HAVE__LOCP
 212
 213 #endif
 214
 215 /*
 216 \f */
 217
 218 #ifdef  _LIBC
 219
 220 /* The zic and zdump programs need these definitions.  */
 221
 222 #define HAVE_STRERROR   1
 223
 224 /* The locale code needs these definitions.  */
 225
 226 #define HAVE_REGEX 1
 227
 228 /* The ARM hard-float ABI is being used.  */
 229 #undef HAVE_ARM_PCS_VFP
 230
 231 #endif