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 using ELF, which supports weak symbols.
  12    This implies HAVE_ASM_WEAK_DIRECTIVE and NO_UNDERSCORES; set by
  13    --with-elf.  */
  14 #undef  HAVE_ELF
  15
  16 /* Define if building with SELinux support.  Set by --with-selinux.  */
  17 #undef  HAVE_SELINUX
  18
  19 /* Defined if building with SELinux support & audit libs are detected. */
  20 #undef  HAVE_LIBAUDIT
  21
  22 /* Defined if building with SELinux support & libcap libs are detected.  */
  23 #undef  HAVE_LIBCAP
  24
  25 /* Define if using XCOFF. Set by --with-xcoff.  */
  26 #undef  HAVE_XCOFF
  27
  28 /* Define if C symbols are asm symbols.  Don't define if C symbols
  29    have a `_' prepended to make the asm symbol.  */
  30 #undef  NO_UNDERSCORES
  31
  32 /* Define if weak symbols are available via the `.weak' directive.  */
  33 #undef  HAVE_ASM_WEAK_DIRECTIVE
  34
  35 /* Define if weak symbols are available via the `.weakext' directive.  */
  36 #undef  HAVE_ASM_WEAKEXT_DIRECTIVE
  37
  38 /* Define if CFI directives are available.  */
  39 #undef  HAVE_ASM_CFI_DIRECTIVES
  40
  41 /* Define to the assembler line separator character for multiple
  42    assembler instructions per line.  Default is `;'  */
  43 #undef ASM_LINE_SEP
  44
  45 /* Define if not using ELF, but `.init' and `.fini' sections are available.  */
  46 #undef  HAVE_INITFINI
  47
  48 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  49 #undef  HAVE_SECTION_QUOTES
  50
  51 /* Define if the assembler supports the `.set' directive.  */
  52 #undef  HAVE_ASM_SET_DIRECTIVE
  53
  54 /* Define to the name of the assembler's directive for
  55    declaring a symbol global (default `.globl').  */
  56 #undef  ASM_GLOBAL_DIRECTIVE
  57
  58 /* Define to the prefix before `object' or `function' in the
  59    assembler's `.type' directive, if it has one.  */
  60 #undef  ASM_TYPE_DIRECTIVE_PREFIX
  61
  62 /* Define if the assembler supports the gnu_unique_object symbol type.  */
  63 #undef  HAVE_ASM_UNIQUE_OBJECT
  64
  65 /* Define a symbol_name as a global .symbol_name for ld.  */
  66 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  67
  68 /* On powerpc64, use overlapping .opd entries.  */
  69 #undef  USE_PPC64_OVERLAPPING_OPD
  70
  71 /* Define if the assembler generates debugging information directly.  */
  72 #undef  HAVE_CPP_ASM_DEBUGINFO
  73
  74 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  75 #undef  EXPORT_UNWIND_FIND_FDE
  76
  77 /* Define if using ELF and the assembler supports the `.previous'
  78    directive.  */
  79 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  80
  81 /* Define if using ELF and the assembler supports the `.popsection'
  82    directive.  */
  83 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  84
  85 /* Define if versioning of the library is wanted.  */
  86 #undef  DO_VERSIONING
  87
  88 /* Defined to the oldest ABI we support, like 2.1.  */
  89 #undef GLIBC_OLDEST_ABI
  90
  91 /* Define if static NSS modules are wanted.  */
  92 #undef  DO_STATIC_NSS
  93
  94 /* Define if the compiler supports __builtin_memset.  */
  95 #undef  HAVE_BUILTIN_MEMSET
  96
  97 /* Define if the regparm attribute shall be used for local functions
  98    (gcc on ix86 only).  */
  99 #undef  USE_REGPARMS
 100
 101 /* Defined on PowerPC if the GCC being used has a problem with clobbering
 102    certain registers (CR0, MQ, CTR, LR) in asm statements.  */
 103 #undef  BROKEN_PPC_ASM_CR0
 104
 105 /* Defined on SPARC if ld doesn't handle R_SPARC_WDISP22 against .hidden
 106    symbol.  sysdeps/sparc/sparc32/elf/configure.  */
 107 #undef  BROKEN_SPARC_WDISP22
 108
 109 /* Define if the linker supports the -z combreloc option.  */
 110 #undef  HAVE_Z_COMBRELOC
 111
 112 /* Define if _rtld_local structure should be forced into .sdata section.  */
 113 #undef  HAVE_SDATA_SECTION
 114
 115 /* Define if gcc supports SSE4.  */
 116 #undef  HAVE_SSE4_SUPPORT
 117
 118 /* Define if gcc supports AVX.  */
 119 #undef  HAVE_AVX_SUPPORT
 120
 121 /* Define if the compiler's exception support is based on libunwind.  */
 122 #undef  HAVE_CC_WITH_LIBUNWIND
 123
 124 /* Define if the access to static and hidden variables is position independent
 125    and does not need relocations.  */
 126 #undef  PI_STATIC_AND_HIDDEN
 127
 128 /* Define this to disable the `hidden_proto' et al macros in
 129    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 130 #undef  NO_HIDDEN
 131
 132
 133 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 134    a different, more efficient calling convention.  */
 135 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 136 # define internal_function __attribute__ ((regparm (3), stdcall))
 137 #endif
 138
 139 /* Linux specific: minimum supported kernel version.  */
 140 #undef  __LINUX_KERNEL_VERSION
 141
 142 /* Override abi-tags ABI version if necessary.  */
 143 #undef  __ABI_TAG_VERSION
 144
 145 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 146    getopt determine whether a parameter is a flag or not.  This features
 147    was disabled later since it caused trouble.  We are by default therefore
 148    disabling the support as well.  */
 149 #undef USE_NONOPTION_FLAGS
 150
 151 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 152 #undef  HAVE_MIG_RETCODE
 153
 154 /* Mach specific: define if the `host_page_size' RPC is available.  */
 155 #undef  HAVE_HOST_PAGE_SIZE
 156
 157 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 158 #undef  HAVE_I386_IO_PERM_MODIFY
 159
 160 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 161 #undef  HAVE_I386_SET_GDT
 162
 163 /* Defined if forced unwind support is available.  */
 164 #undef  HAVE_FORCED_UNWIND
 165
 166 /* Defined of libidn is available.  */
 167 #undef HAVE_LIBIDN
 168
 169 /* Define if inlined system calls are available.  */
 170 #undef HAVE_INLINED_SYSCALLS
 171
 172 /* Define if your assembler and linker support R_PPC_REL16* relocs.  */
 173 #undef HAVE_ASM_PPC_REL16
 174
 175 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 176 #undef HAVE_PPC_SECURE_PLT
 177
 178 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 179 #undef ENABLE_STACKGUARD_RANDOMIZE
 180
 181 /* Define if multi-arch DSOs should be generated.  */
 182 #undef USE_MULTIARCH
 183
 184 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 185 #undef  NO_CTORS_DTORS_SECTIONS
 186
 187 /*
 188 \f */
 189
 190 #ifndef _LIBC
 191
 192 /* These symbols might be defined by some sysdeps configures.
 193    They are used only in miscellaneous generator programs, not
 194    in compiling libc itself.   */
 195
 196 /* sysdeps/generic/configure.in */
 197 #undef  HAVE_PSIGNAL
 198
 199 /* sysdeps/unix/configure.in */
 200 #undef  HAVE_STRERROR
 201
 202 /* sysdeps/unix/common/configure.in */
 203 #undef  HAVE_SYS_SIGLIST
 204 #undef  HAVE__SYS_SIGLIST
 205 #undef  HAVE__CTYPE_
 206 #undef  HAVE___CTYPE_
 207 #undef  HAVE___CTYPE
 208 #undef  HAVE__CTYPE__
 209 #undef  HAVE__CTYPE
 210 #undef  HAVE__LOCP
 211
 212 #endif
 213
 214 /*
 215 \f */
 216
 217 #ifdef  _LIBC
 218
 219 /* The zic and zdump programs need these definitions.  */
 220
 221 #define HAVE_STRERROR   1
 222
 223 /* The locale code needs these definitions.  */
 224
 225 #define HAVE_REGEX 1
 226
 227 #endif