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