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 if the assembler supports the gnu_unique_object symbol type.  */
  41 #undef  HAVE_ASM_UNIQUE_OBJECT
  42
  43 /* Define a symbol_name as a global .symbol_name for ld.  */
  44 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  45
  46 /* On powerpc64, use overlapping .opd entries.  */
  47 #undef  USE_PPC64_OVERLAPPING_OPD
  48
  49 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  50 #undef  EXPORT_UNWIND_FIND_FDE
  51
  52 /* Define if using ELF and the assembler supports the `.previous'
  53    directive.  */
  54 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  55
  56 /* Define if using ELF and the assembler supports the `.popsection'
  57    directive.  */
  58 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  59
  60 /* Define if versioning of the library is wanted.  */
  61 #undef  DO_VERSIONING
  62
  63 /* Defined to the oldest ABI we support, like 2.1.  */
  64 #undef GLIBC_OLDEST_ABI
  65
  66 /* Define if static NSS modules are wanted.  */
  67 #undef  DO_STATIC_NSS
  68
  69 /* Define if the compiler supports __builtin_memset.  */
  70 #undef  HAVE_BUILTIN_MEMSET
  71
  72 /* Define if the regparm attribute shall be used for local functions
  73    (gcc on ix86 only).  */
  74 #undef  USE_REGPARMS
  75
  76 /* Defined on PowerPC if the GCC being used has a problem with clobbering
  77    certain registers (CR0, MQ, CTR, LR) in asm statements.  */
  78 #undef  BROKEN_PPC_ASM_CR0
  79
  80 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  81 #undef  HAVE_GCC_GOTDATA
  82
  83 /* Define on SPARC if AS supports VIS3 instructions.  */
  84 #undef  HAVE_AS_VIS3_SUPPORT
  85
  86 /* Define if the linker supports the -z combreloc option.  */
  87 #undef  HAVE_Z_COMBRELOC
  88
  89 /* Define if _rtld_local structure should be forced into .sdata section.  */
  90 #undef  HAVE_SDATA_SECTION
  91
  92 /* Define if gcc supports SSE4.  */
  93 #undef  HAVE_SSE4_SUPPORT
  94
  95 /* Define if gcc supports AVX.  */
  96 #undef  HAVE_AVX_SUPPORT
  97
  98 /* Define if gcc supports VEX encoding.  */
  99 #undef  HAVE_SSE2AVX_SUPPORT
 100
 101 /* Define if gcc supports FMA4.  */
 102 #undef  HAVE_FMA4_SUPPORT
 103
 104 /* Define if the compiler\'s exception support is based on libunwind.  */
 105 #undef  HAVE_CC_WITH_LIBUNWIND
 106
 107 /* Define if the access to static and hidden variables is position independent
 108    and does not need relocations.  */
 109 #undef  PI_STATIC_AND_HIDDEN
 110
 111 /* Define this to disable the 'hidden_proto' et al macros in
 112    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 113 #undef  NO_HIDDEN
 114
 115
 116 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 117    a different, more efficient calling convention.  */
 118 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 119 # define internal_function __attribute__ ((regparm (3), stdcall))
 120 #endif
 121
 122 /* Linux specific: minimum supported kernel version.  */
 123 #undef  __LINUX_KERNEL_VERSION
 124
 125 /* Override abi-tags ABI version if necessary.  */
 126 #undef  __ABI_TAG_VERSION
 127
 128 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 129    getopt determine whether a parameter is a flag or not.  This features
 130    was disabled later since it caused trouble.  We are by default therefore
 131    disabling the support as well.  */
 132 #undef USE_NONOPTION_FLAGS
 133
 134 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 135 #undef  HAVE_MIG_RETCODE
 136
 137 /* Mach specific: define if the `host_page_size' RPC is available.  */
 138 #undef  HAVE_HOST_PAGE_SIZE
 139
 140 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 141 #undef  HAVE_I386_IO_PERM_MODIFY
 142
 143 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 144 #undef  HAVE_I386_SET_GDT
 145
 146 /* Defined if forced unwind support is available.  */
 147 #undef  HAVE_FORCED_UNWIND
 148
 149 /* Defined of libidn is available.  */
 150 #undef HAVE_LIBIDN
 151
 152 /* Define if inlined system calls are available.  */
 153 #undef HAVE_INLINED_SYSCALLS
 154
 155 /* Define if your assembler and linker support R_PPC_REL16* relocs.  */
 156 #undef HAVE_ASM_PPC_REL16
 157
 158 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 159 #undef HAVE_PPC_SECURE_PLT
 160
 161 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 162 #undef ENABLE_STACKGUARD_RANDOMIZE
 163
 164 /* Define if multi-arch DSOs should be generated.  */
 165 #undef USE_MULTIARCH
 166
 167 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 168 #undef  NO_CTORS_DTORS_SECTIONS
 169
 170 /* Define if obsolete RPC code should be made available for user-level code
 171    to link against.  */
 172 #undef LINK_OBSOLETE_RPC
 173
 174 /* Define if Systemtap <sys/sdt.h> probes should be defined.  */
 175 #undef USE_STAP_PROBE
 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.in */
 187 #undef  HAVE_PSIGNAL
 188
 189 /* sysdeps/unix/configure.in */
 190 #undef  HAVE_STRERROR
 191
 192 /* sysdeps/unix/common/configure.in */
 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 #endif