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 not using ELF, but `.init' and `.fini' sections are available.  */
  34 #undef  HAVE_INITFINI
  35
  36 /* Define if __attribute__((section("foo"))) puts quotes around foo.  */
  37 #undef  HAVE_SECTION_QUOTES
  38
  39 /* Define if the assembler supports the `.set' directive.  */
  40 #undef  HAVE_ASM_SET_DIRECTIVE
  41
  42 /* Define to the name of the assembler's directive for
  43    declaring a symbol global (default `.globl').  */
  44 #undef  ASM_GLOBAL_DIRECTIVE
  45
  46 /* Define to the prefix before `object' or `function' in the
  47    assembler's `.type' directive, if it has one.  */
  48 #undef  ASM_TYPE_DIRECTIVE_PREFIX
  49
  50 /* Define if the assembler supports the gnu_unique_object symbol type.  */
  51 #undef  HAVE_ASM_UNIQUE_OBJECT
  52
  53 /* Define a symbol_name as a global .symbol_name for ld.  */
  54 #undef  HAVE_ASM_GLOBAL_DOT_NAME
  55
  56 /* On powerpc64, use overlapping .opd entries.  */
  57 #undef  USE_PPC64_OVERLAPPING_OPD
  58
  59 /* Define if the assembler generates debugging information directly.  */
  60 #undef  HAVE_CPP_ASM_DEBUGINFO
  61
  62 /* Define if _Unwind_Find_FDE should be exported from glibc.  */
  63 #undef  EXPORT_UNWIND_FIND_FDE
  64
  65 /* Define if using ELF and the assembler supports the `.previous'
  66    directive.  */
  67 #undef  HAVE_ASM_PREVIOUS_DIRECTIVE
  68
  69 /* Define if using ELF and the assembler supports the `.popsection'
  70    directive.  */
  71 #undef  HAVE_ASM_POPSECTION_DIRECTIVE
  72
  73 /* Define if versioning of the library is wanted.  */
  74 #undef  DO_VERSIONING
  75
  76 /* Defined to the oldest ABI we support, like 2.1.  */
  77 #undef GLIBC_OLDEST_ABI
  78
  79 /* Define if static NSS modules are wanted.  */
  80 #undef  DO_STATIC_NSS
  81
  82 /* Define if the compiler supports __builtin_memset.  */
  83 #undef  HAVE_BUILTIN_MEMSET
  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 /* Defined on SPARC if ld doesn't handle R_SPARC_WDISP22 against .hidden
  94    symbol.  sysdeps/sparc/sparc32/elf/configure.  */
  95 #undef  BROKEN_SPARC_WDISP22
  96
  97 /* Define if the linker supports the -z combreloc option.  */
  98 #undef  HAVE_Z_COMBRELOC
  99
 100 /* Define if _rtld_local structure should be forced into .sdata section.  */
 101 #undef  HAVE_SDATA_SECTION
 102
 103 /* Define if gcc supports SSE4.  */
 104 #undef  HAVE_SSE4_SUPPORT
 105
 106 /* Define if gcc supports AVX.  */
 107 #undef  HAVE_AVX_SUPPORT
 108
 109 /* Define if gcc supports FMA4.  */
 110 #undef  HAVE_FMA4_SUPPORT
 111
 112 /* Define if the compiler's exception support is based on libunwind.  */
 113 #undef  HAVE_CC_WITH_LIBUNWIND
 114
 115 /* Define if the access to static and hidden variables is position independent
 116    and does not need relocations.  */
 117 #undef  PI_STATIC_AND_HIDDEN
 118
 119 /* Define this to disable the `hidden_proto' et al macros in
 120    include/libc-symbols.h that avoid PLT slots in the shared objects.  */
 121 #undef  NO_HIDDEN
 122
 123
 124 /* Defined to some form of __attribute__ ((...)) if the compiler supports
 125    a different, more efficient calling convention.  */
 126 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
 127 # define internal_function __attribute__ ((regparm (3), stdcall))
 128 #endif
 129
 130 /* Linux specific: minimum supported kernel version.  */
 131 #undef  __LINUX_KERNEL_VERSION
 132
 133 /* Override abi-tags ABI version if necessary.  */
 134 #undef  __ABI_TAG_VERSION
 135
 136 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
 137    getopt determine whether a parameter is a flag or not.  This features
 138    was disabled later since it caused trouble.  We are by default therefore
 139    disabling the support as well.  */
 140 #undef USE_NONOPTION_FLAGS
 141
 142 /* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
 143 #undef  HAVE_MIG_RETCODE
 144
 145 /* Mach specific: define if the `host_page_size' RPC is available.  */
 146 #undef  HAVE_HOST_PAGE_SIZE
 147
 148 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
 149 #undef  HAVE_I386_IO_PERM_MODIFY
 150
 151 /* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
 152 #undef  HAVE_I386_SET_GDT
 153
 154 /* Defined if forced unwind support is available.  */
 155 #undef  HAVE_FORCED_UNWIND
 156
 157 /* Defined of libidn is available.  */
 158 #undef HAVE_LIBIDN
 159
 160 /* Define if inlined system calls are available.  */
 161 #undef HAVE_INLINED_SYSCALLS
 162
 163 /* Define if your assembler and linker support R_PPC_REL16* relocs.  */
 164 #undef HAVE_ASM_PPC_REL16
 165
 166 /* Define if your compiler defaults to -msecure-plt mode on ppc.  */
 167 #undef HAVE_PPC_SECURE_PLT
 168
 169 /* Define if __stack_chk_guard canary should be randomized at program startup.  */
 170 #undef ENABLE_STACKGUARD_RANDOMIZE
 171
 172 /* Define if multi-arch DSOs should be generated.  */
 173 #undef USE_MULTIARCH
 174
 175 /* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
 176 #undef  NO_CTORS_DTORS_SECTIONS
 177
 178 /*
 179 \f */
 180
 181 #ifndef _LIBC
 182
 183 /* These symbols might be defined by some sysdeps configures.
 184    They are used only in miscellaneous generator programs, not
 185    in compiling libc itself.   */
 186
 187 /* sysdeps/generic/configure.in */
 188 #undef  HAVE_PSIGNAL
 189
 190 /* sysdeps/unix/configure.in */
 191 #undef  HAVE_STRERROR
 192
 193 /* sysdeps/unix/common/configure.in */
 194 #undef  HAVE_SYS_SIGLIST
 195 #undef  HAVE__SYS_SIGLIST
 196 #undef  HAVE__CTYPE_
 197 #undef  HAVE___CTYPE_
 198 #undef  HAVE___CTYPE
 199 #undef  HAVE__CTYPE__
 200 #undef  HAVE__CTYPE
 201 #undef  HAVE__LOCP
 202
 203 #endif
 204
 205 /*
 206 \f */
 207
 208 #ifdef  _LIBC
 209
 210 /* The zic and zdump programs need these definitions.  */
 211
 212 #define HAVE_STRERROR   1
 213
 214 /* The locale code needs these definitions.  */
 215
 216 #define HAVE_REGEX 1
 217
 218 #endif