]> git.ipfire.org Git - thirdparty/glibc.git/blame - config.h.in
Add test for required SELinux features.
[thirdparty/glibc.git] / config.h.in
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78ce5a3b 1#if !defined __ASSEMBLER__ && !defined _ISOMAC && !defined __OPTIMIZE__
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2# error "glibc cannot be compiled without optimization"
3#endif
4
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5/* Another evil option when it comes to compiling the C library is
6 --ffast-math since it alters the ABI. */
d747a0a5 7#if defined __FAST_MATH__ && !defined TEST_FAST_MATH
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8# error "glibc must not be compiled with -ffast-math"
9#endif
10
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11/* Define if using GNU ld, with support for weak symbols in a.out,
12 and for symbol set and warning messages extensions in a.out and ELF.
13 This implies HAVE_WEAK_SYMBOLS; set by --with-gnu-ld. */
14#undef HAVE_GNU_LD
15
16/* Define if using ELF, which supports weak symbols.
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17 This implies HAVE_ASM_WEAK_DIRECTIVE and NO_UNDERSCORES; set by
18 --with-elf. */
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19#undef HAVE_ELF
20
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21/* Define if using XCOFF. Set by --with-xcoff. */
22#undef HAVE_XCOFF
23
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24/* Define if C symbols are asm symbols. Don't define if C symbols
25 have a `_' prepended to make the asm symbol. */
26#undef NO_UNDERSCORES
27
28/* Define if weak symbols are available via the `.weak' directive. */
29#undef HAVE_ASM_WEAK_DIRECTIVE
30
31/* Define if weak symbols are available via the `.weakext' directive. */
32#undef HAVE_ASM_WEAKEXT_DIRECTIVE
28f540f4 33
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34/* Define if CFI directives are available. */
35#undef HAVE_ASM_CFI_DIRECTIVES
36
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37/* Define to the assembler line separator character for multiple
38 assembler instructions per line. Default is `;' */
39#undef ASM_LINE_SEP
40
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41/* Define if not using ELF, but `.init' and `.fini' sections are available. */
42#undef HAVE_INITFINI
43
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44/* Define if __attribute__((section("foo"))) puts quotes around foo. */
45#undef HAVE_SECTION_QUOTES
46
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47/* Define if using the GNU assembler, gas. */
48#undef HAVE_GNU_AS
0923c7a5 49
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50/* Define if the assembler supports the `.set' directive. */
51#undef HAVE_ASM_SET_DIRECTIVE
52
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53/* Define to the name of the assembler's directive for
54 declaring a symbol global (default `.globl'). */
55#undef ASM_GLOBAL_DIRECTIVE
56
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57/* Define to the prefix before `object' or `function' in the
58 assembler's `.type' directive, if it has one. */
59#undef ASM_TYPE_DIRECTIVE_PREFIX
60
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61/* Define a symbol_name as a global .symbol_name for ld. */
62#undef HAVE_ASM_GLOBAL_DOT_NAME
63
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64/* On powerpc64, use overlapping .opd entries. */
65#undef USE_PPC64_OVERLAPPING_OPD
66
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67/* Define if the assembler generates debugging information directly. */
68#undef HAVE_CPP_ASM_DEBUGINFO
69
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70/* Define if _Unwind_Find_FDE should be exported from glibc. */
71#undef EXPORT_UNWIND_FIND_FDE
72
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73/* Define to use GNU libio instead of GNU stdio.
74 This is defined by configure under --enable-libio. */
75#undef USE_IN_LIBIO
92777700 76
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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
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85/* Define if versioning of the library is wanted. */
86#undef DO_VERSIONING
87
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88/* Defined to the oldest ABI we support, like 2.1. */
89#undef GLIBC_OLDEST_ABI
90
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91/* Define if static NSS modules are wanted. */
92#undef DO_STATIC_NSS
93
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94/* Define if gcc uses DWARF2 unwind information for exception support. */
95#undef HAVE_DWARF2_UNWIND_INFO
96
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97/* Define if gcc uses DWARF2 unwind information for exception support
98 with static variable. */
99#undef HAVE_DWARF2_UNWIND_INFO_STATIC
100
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101/* Define if the compiler supports __builtin_expect. */
102#undef HAVE_BUILTIN_EXPECT
103
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104/* Define if the compiler supports __builtin_memset. */
105#undef HAVE_BUILTIN_MEMSET
106
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107/* Define if __asm () on built-in function's prototype causes redirection of
108 the builtin. */
109#undef HAVE_BUILTIN_REDIRECTION
110
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111/* Define if the __thread keyword is supported. */
112#undef HAVE___THREAD
113
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114/* Define if the compiler supports __attribute__((tls_model(""))). */
115#undef HAVE_TLS_MODEL_ATTRIBUTE
116
66000494 117/* Define if the regparm attribute shall be used for local functions
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118 (gcc on ix86 only). */
119#undef USE_REGPARMS
120
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121/* Defined on PowerPC if the GCC being used has a problem with clobbering
122 certain registers (CR0, MQ, CTR, LR) in asm statements. */
123#undef BROKEN_PPC_ASM_CR0
124
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125/* Defined on SPARC if ld doesn't handle R_SPARC_WDISP22 against .hidden
126 symbol. sysdeps/sparc/sparc32/elf/configure. */
127#undef BROKEN_SPARC_WDISP22
128
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129/* Define if the linker supports the -z combreloc option. */
130#undef HAVE_Z_COMBRELOC
131
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132/* Define if the assembler supported .protected. */
133#undef HAVE_PROTECTED
134
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135/* Define if the assembler supported .hidden. */
136#undef HAVE_HIDDEN
137
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138/* Define if the compiler supports __attribute__ ((visibility (...))). */
139#undef HAVE_VISIBILITY_ATTRIBUTE
140
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141/* Define if the compiler doesn't support __attribute__ ((visibility (...)))
142 together with __asm__ redirection properly. */
143#undef HAVE_BROKEN_VISIBILITY_ATTRIBUTE
144
145/* Define if the compiler doesn't support __attribute__ ((alias (...)))
146 together with __asm__ redirection properly. */
147#undef HAVE_BROKEN_ALIAS_ATTRIBUTE
148
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149/* Define if _rtld_local structure should be forced into .sdata section. */
150#undef HAVE_SDATA_SECTION
151
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152/* Define if binutils support TLS handling. */
153#undef HAVE_TLS_SUPPORT
154
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155/* Define if the linker supports .preinit_array/.init_array/.fini_array
156 sections. */
157#undef HAVE_INITFINI_ARRAY
158
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159/* Define if the compiler's exception support is based on libunwind. */
160#undef HAVE_CC_WITH_LIBUNWIND
161
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162/* Define if the access to static and hidden variables is position independent
163 and does not need relocations. */
164#undef PI_STATIC_AND_HIDDEN
165
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166/* Define this to disable the `hidden_proto' et al macros in
167 include/libc-symbols.h that avoid PLT slots in the shared objects. */
168#undef NO_HIDDEN
169
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170
171/* Defined to some form of __attribute__ ((...)) if the compiler supports
172 a different, more efficient calling convention. */
6fc1dd3f 173#if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
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174# define internal_function __attribute__ ((regparm (3), stdcall))
175#endif
176
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177/* Linux specific: minimum supported kernel version. */
178#undef __LINUX_KERNEL_VERSION
179
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180/* Override abi-tags ABI version if necessary. */
181#undef __ABI_TAG_VERSION
182
e8b1163e 183/* An extension in gcc 2.96 and up allows the subtraction of two
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184 local labels. */
185#undef HAVE_SUBTRACT_LOCAL_LABELS
186
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187/* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
188 getopt determine whether a parameter is a flag or not. This features
189 was disabled later since it caused trouble. We are by default therefore
190 disabling the support as well. */
191#undef USE_NONOPTION_FLAGS
192
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193/* Mach/Hurd specific: define if mig supports the `retcode' keyword. */
194#undef HAVE_MIG_RETCODE
195
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196/* Mach specific: define if the `host_page_size' RPC is available. */
197#undef HAVE_HOST_PAGE_SIZE
198
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199/* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available. */
200#undef HAVE_I386_IO_PERM_MODIFY
201
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202/* Mach/i386 specific: define if the `i386_set_gdt' RPC is available. */
203#undef HAVE_I386_SET_GDT
204
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205/* Defined if forced unwind support is available. */
206#undef HAVE_FORCED_UNWIND
207
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208/* Defined if the linker supports the -z relro option. */
209#undef HAVE_Z_RELRO
210
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211/* Defined of libidn is available. */
212#undef HAVE_LIBIDN
213
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214/* Define if inlined system calls are available. */
215#undef HAVE_INLINED_SYSCALLS
216
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217/*
218\f */
219
220#ifndef _LIBC
221
222/* These symbols might be defined by some sysdeps configures.
223 They are used only in miscellaneous generator programs, not
224 in compiling libc itself. */
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225
226/* sysdeps/generic/configure.in */
227#undef HAVE_PSIGNAL
228
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229/* sysdeps/unix/configure.in */
230#undef HAVE_STRERROR
231
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232/* sysdeps/unix/common/configure.in */
233#undef HAVE_SYS_SIGLIST
234#undef HAVE__SYS_SIGLIST
235#undef HAVE__CTYPE_
236#undef HAVE___CTYPE_
237#undef HAVE___CTYPE
238#undef HAVE__CTYPE__
239#undef HAVE__CTYPE
240#undef HAVE__LOCP
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241
242#endif
243
244/*
245\f */
246
247#ifdef _LIBC
248
249/* The zic and zdump programs need these definitions. */
250
251#define HAVE_STRERROR 1
252
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253/* The locale code needs these definitions. */
254
255#define HAVE_REGEX 1
256
92777700 257#endif