config.h.in

   1 #if !defined __ASSEMBLER__ && !defined _ISOMAC && !defined __OPTIMIZE__
   2 # error "glibc cannot be compiled without optimization"
   3 #endif
   4
   5 /* Another evil option when it comes to compiling the C library is
   6    --ffast-math since it alters the ABI.  */
   7 #if defined __FAST_MATH__ && !defined TEST_FAST_MATH
   8 # error "glibc must not be compiled with -ffast-math"
   9 #endif
  10
  11 /* Define if building with SELinux support.  Set by --with-selinux.  */
  12 #undef  HAVE_SELINUX
  13
  14 /* Defined if building with SELinux support & audit libs are detected. */
  15 #undef  HAVE_LIBAUDIT
  16
  17 /* Defined if building with SELinux support & libcap libs are detected.  */
  18 #undef  HAVE_LIBCAP
  19
  20 /* Define if weak symbols are available via the `.weak' directive.  */
  21 #undef  HAVE_ASM_WEAK_DIRECTIVE
  22
  23 /* Define if weak symbols are available via the `.weakext' directive.  */
  24 #undef  HAVE_ASM_WEAKEXT_DIRECTIVE
  25
  26 /* Define if CFI directives are available.  */
  27 #undef  HAVE_ASM_CFI_DIRECTIVES
  28
  29 /* Define to the assembler line separator character for multiple
  30    assembler instructions per line.  Default is `;'  */
  31 #undef ASM_LINE_SEP
  32
  33 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  34 #undef  HAVE_SECTION_QUOTES
  35
  36 /* Define if the assembler supports the `.set' directive.  */
  37 #undef  HAVE_ASM_SET_DIRECTIVE
  38
  39 /* Define to the name of the assembler's directive for
  40    declaring a symbol global (default `.globl').  */
  41 #undef  ASM_GLOBAL_DIRECTIVE
  42
  43 /* Define to the prefix before `object' or `function' in the
  44    assembler's `.type' directive, if it has one.  */
  45 #undef  ASM_TYPE_DIRECTIVE_PREFIX
  46
  47 /* Define if the assembler supports the gnu_unique_object symbol type.  */
  48 #undef  HAVE_ASM_UNIQUE_OBJECT
  49
  50 /* Define a symbol_name as a global .symbol_name for ld.  */
  51 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  52
  53 /* On powerpc64, use overlapping .opd entries.  */
  54 #undef  USE_PPC64_OVERLAPPING_OPD
  55
  56 /* Define if the assembler generates debugging information directly.  */
  57 #undef  HAVE_CPP_ASM_DEBUGINFO
  58
  59 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  60 #undef  EXPORT_UNWIND_FIND_FDE
  61
  62 /* Define if using ELF and the assembler supports the `.previous'
  63    directive.  */
  64 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  65
  66 /* Define if using ELF and the assembler supports the `.popsection'
  67    directive.  */
  68 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  69
  70 /* Define if versioning of the library is wanted.  */
  71 #undef  DO_VERSIONING
  72
  73 /* Defined to the oldest ABI we support, like 2.1.  */
  74 #undef GLIBC_OLDEST_ABI
  75
  76 /* Define if static NSS modules are wanted.  */
  77 #undef  DO_STATIC_NSS
  78
  79 /* Define if the compiler supports __builtin_memset.  */
  80 #undef  HAVE_BUILTIN_MEMSET
  81
  82 /* Define if the regparm attribute shall be used for local functions
  83    (gcc on ix86 only).  */
  84 #undef  USE_REGPARMS
  85
  86 /* Defined on PowerPC if the GCC being used has a problem with clobbering
  87    certain registers (CR0, MQ, CTR, LR) in asm statements.  */
  88 #undef  BROKEN_PPC_ASM_CR0
  89
  90 /* Defined on SPARC if GCC emits GOTDATA relocations.  */
  91 #undef  HAVE_GCC_GOTDATA
  92
  93 /* Define on SPARC if AS supports VIS3 instructions.  */
  94 #undef  HAVE_AS_VIS3_SUPPORT
  95
  96 /* Define if the linker supports the -z combreloc option.  */
  97 #undef  HAVE_Z_COMBRELOC
  98
  99 /* Define if _rtld_local structure should be forced into .sdata section.  */
 100 #undef  HAVE_SDATA_SECTION
 101
 102 /* Define if gcc supports SSE4.  */
 103 #undef  HAVE_SSE4_SUPPORT
 104
 105 /* Define if gcc supports AVX.  */
 106 #undef  HAVE_AVX_SUPPORT
 107
 108 /* Define if gcc supports VEX encoding.  */
 109 #undef  HAVE_SSE2AVX_SUPPORT
 110
 111 /* Define if gcc supports FMA4.  */
 112 #undef  HAVE_FMA4_SUPPORT
 113
 114 /* Define if the compiler\'s exception support is based on libunwind.  */
 115 #undef  HAVE_CC_WITH_LIBUNWIND
 116
 117 /* Define if the access to static and hidden variables is position independent
 118    and does not need relocations.  */
 119 #undef  PI_STATIC_AND_HIDDEN
 120
 121 /* Define this to disable the 'hidden_proto' et al macros in
 122    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 123 #undef  NO_HIDDEN
 124
 125
 126 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 127    a different, more efficient calling convention.  */
 128 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 129 # define internal_function __attribute__ ((regparm (3), stdcall))
 130 #endif
 131
 132 /* Linux specific: minimum supported kernel version.  */
 133 #undef  __LINUX_KERNEL_VERSION
 134
 135 /* Override abi-tags ABI version if necessary.  */
 136 #undef  __ABI_TAG_VERSION
 137
 138 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 139    getopt determine whether a parameter is a flag or not.  This features
 140    was disabled later since it caused trouble.  We are by default therefore
 141    disabling the support as well.  */
 142 #undef USE_NONOPTION_FLAGS
 143
 144 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 145 #undef  HAVE_MIG_RETCODE
 146
 147 /* Mach specific: define if the `host_page_size' RPC is available.  */
 148 #undef  HAVE_HOST_PAGE_SIZE
 149
 150 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 151 #undef  HAVE_I386_IO_PERM_MODIFY
 152
 153 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 154 #undef  HAVE_I386_SET_GDT
 155
 156 /* Defined if forced unwind support is available.  */
 157 #undef  HAVE_FORCED_UNWIND
 158
 159 /* Defined of libidn is available.  */
 160 #undef HAVE_LIBIDN
 161
 162 /* Define if inlined system calls are available.  */
 163 #undef HAVE_INLINED_SYSCALLS
 164
 165 /* Define if your assembler and linker support R_PPC_REL16* relocs.  */
 166 #undef HAVE_ASM_PPC_REL16
 167
 168 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 169 #undef HAVE_PPC_SECURE_PLT
 170
 171 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 172 #undef ENABLE_STACKGUARD_RANDOMIZE
 173
 174 /* Define if multi-arch DSOs should be generated.  */
 175 #undef USE_MULTIARCH
 176
 177 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 178 #undef  NO_CTORS_DTORS_SECTIONS
 179
 180 /*
 181 \f */
 182
 183 #ifndef _LIBC
 184
 185 /* These symbols might be defined by some sysdeps configures.
 186    They are used only in miscellaneous generator programs, not
 187    in compiling libc itself.   */
 188
 189 /* sysdeps/generic/configure.in */
 190 #undef  HAVE_PSIGNAL
 191
 192 /* sysdeps/unix/configure.in */
 193 #undef  HAVE_STRERROR
 194
 195 /* sysdeps/unix/common/configure.in */
 196 #undef  HAVE_SYS_SIGLIST
 197 #undef  HAVE__SYS_SIGLIST
 198 #undef  HAVE__CTYPE_
 199 #undef  HAVE___CTYPE_
 200 #undef  HAVE___CTYPE
 201 #undef  HAVE__CTYPE__
 202 #undef  HAVE__CTYPE
 203 #undef  HAVE__LOCP
 204
 205 #endif
 206
 207 /*
 208 \f */
 209
 210 #ifdef  _LIBC
 211
 212 /* The zic and zdump programs need these definitions.  */
 213
 214 #define HAVE_STRERROR   1
 215
 216 /* The locale code needs these definitions.  */
 217
 218 #define HAVE_REGEX 1
 219
 220 #endif