config.h.in

   1 #if !defined ASSEMBLER && !defined _ISOMAC && !defined __OPTIMIZE__
   2 # error "glibc cannot be compiled without optimization"
   3 #endif
   4
   5 /* Define if using GNU ld, with support for weak symbols in a.out,
   6    and for symbol set and warning messages extensions in a.out and ELF.
   7    This implies HAVE_WEAK_SYMBOLS; set by --with-gnu-ld.  */
   8 #undef  HAVE_GNU_LD
   9
  10 /* Define if using ELF, which supports weak symbols.
  11    This implies HAVE_ASM_WEAK_DIRECTIVE and NO_UNDERSCORES; set by
  12    --with-elf.  */
  13 #undef  HAVE_ELF
  14
  15 /* Define if using XCOFF. Set by --with-xcoff.  */
  16 #undef  HAVE_XCOFF
  17
  18 /* Define if C symbols are asm symbols.  Don't define if C symbols
  19    have a `_' prepended to make the asm symbol.  */
  20 #undef  NO_UNDERSCORES
  21
  22 /* Define if weak symbols are available via the `.weak' directive.  */
  23 #undef  HAVE_ASM_WEAK_DIRECTIVE
  24
  25 /* Define if weak symbols are available via the `.weakext' directive.  */
  26 #undef  HAVE_ASM_WEAKEXT_DIRECTIVE
  27
  28 /* Define to the assembler line separator character for multiple
  29    assembler instructions per line.  Default is `;'  */
  30 #undef ASM_LINE_SEP
  31
  32 /* Define if not using ELF, but `.init' and `.fini' sections are available.  */
  33 #undef  HAVE_INITFINI
  34
  35 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  36 #undef  HAVE_SECTION_QUOTES
  37
  38 /* Define if using the GNU assembler, gas.  */
  39 #undef  HAVE_GNU_AS
  40
  41 /* Define if the assembler supports the `.set' directive.  */
  42 #undef  HAVE_ASM_SET_DIRECTIVE
  43
  44 /* Define to the name of the assembler's directive for
  45    declaring a symbol global (default `.globl').  */
  46 #undef  ASM_GLOBAL_DIRECTIVE
  47
  48 /* Define a symbol_name as a global .symbol_name for ld.  */
  49 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  50
  51 /* Define to use GNU libio instead of GNU stdio.
  52    This is defined by configure under --enable-libio.  */
  53 #undef  USE_IN_LIBIO
  54
  55 /* Define if using ELF and the assembler supports the `.previous'
  56    directive.  */
  57 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  58
  59 /* Define if using ELF and the assembler supports the `.popsection'
  60    directive.  */
  61 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  62
  63 /* Define to the prefix Alpha/ELF GCC emits before ..ng symbols.  */
  64 #undef  ASM_ALPHA_NG_SYMBOL_PREFIX
  65
  66 /* Define if versioning of the library is wanted.  */
  67 #undef  DO_VERSIONING
  68
  69 /* Defined to the oldest ABI we support, like 2.1.  */
  70 #undef GLIBC_OLDEST_ABI
  71
  72 /* Define if static NSS modules are wanted.  */
  73 #undef  DO_STATIC_NSS
  74
  75 /* Define if gcc uses DWARF2 unwind information for exception support.  */
  76 #undef  HAVE_DWARF2_UNWIND_INFO
  77
  78 /* Define if gcc uses DWARF2 unwind information for exception support
  79    with static variable. */
  80 #undef  HAVE_DWARF2_UNWIND_INFO_STATIC
  81
  82 /* Define if the compiler supports __builtin_expect.  */
  83 #undef  HAVE_BUILTIN_EXPECT
  84
  85 /* Define if the regparm attribute shall be used for local functions
  86    (gcc on ix86 only).  */
  87 #undef  USE_REGPARMS
  88
  89 /* Defined on PowerPC if the GCC being used has a problem with clobbering
  90    certain registers (CR0, MQ, CTR, LR) in asm statements.  */
  91 #undef  BROKEN_PPC_ASM_CR0
  92
  93 /* Define if the linker supports the -z combreloc option.  */
  94 #undef  HAVE_Z_COMBRELOC
  95
  96
  97 /* Defined to some form of __attribute__ ((...)) if the compiler supports
  98    a different, more efficient calling convention.  */
  99 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 100 # define internal_function __attribute__ ((regparm (3), stdcall))
 101 #endif
 102
 103 /* Linux specific: minimum supported kernel version.  */
 104 #undef  __LINUX_KERNEL_VERSION
 105
 106 /* Override abi-tags ABI version if necessary.  */
 107 #undef  __ABI_TAG_VERSION
 108
 109 /* An extension in gcc 2.96 and up allows the subtraction of two
 110    local labels.  */
 111 #undef  HAVE_SUBTRACT_LOCAL_LABELS
 112
 113 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 114    getopt determine whether a parameter is a flag or not.  This features
 115    was disabled later since it caused trouble.  We are by default therefore
 116    disabling the support as well.  */
 117 #undef USE_NONOPTION_FLAGS
 118
 119 /*
 120 \f */
 121
 122 #ifndef _LIBC
 123
 124 /* These symbols might be defined by some sysdeps configures.
 125    They are used only in miscellaneous generator programs, not
 126    in compiling libc itself.   */
 127
 128 /* sysdeps/generic/configure.in */
 129 #undef  HAVE_PSIGNAL
 130
 131 /* sysdeps/unix/configure.in */
 132 #undef  HAVE_STRERROR
 133
 134 /* sysdeps/unix/common/configure.in */
 135 #undef  HAVE_SYS_SIGLIST
 136 #undef  HAVE__SYS_SIGLIST
 137 #undef  HAVE__CTYPE_
 138 #undef  HAVE___CTYPE_
 139 #undef  HAVE___CTYPE
 140 #undef  HAVE__CTYPE__
 141 #undef  HAVE__CTYPE
 142 #undef  HAVE__LOCP
 143
 144 #endif
 145
 146 /*
 147 \f */
 148
 149 #ifdef  _LIBC
 150
 151 /* The zic and zdump programs need these definitions.  */
 152
 153 #define HAVE_STRERROR   1
 154
 155 /* The locale code needs these definitions.  */
 156
 157 #define HAVE_REGEX 1
 158
 159 #endif