Update.
[glibc.git] / config.h.in
blob84e1e04a733c10e210b2deb3b209a35cf3823a79
1 #if !defined __ASSEMBLER__ && !defined _ISOMAC && !defined __OPTIMIZE__
2 # error "glibc cannot be compiled without optimization"
3 #endif
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
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
16 /* Define if using ELF, which supports weak symbols.
17 This implies HAVE_ASM_WEAK_DIRECTIVE and NO_UNDERSCORES; set by
18 --with-elf. */
19 #undef HAVE_ELF
21 /* Define if using XCOFF. Set by --with-xcoff. */
22 #undef HAVE_XCOFF
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
28 /* Define if weak symbols are available via the `.weak' directive. */
29 #undef HAVE_ASM_WEAK_DIRECTIVE
31 /* Define if weak symbols are available via the `.weakext' directive. */
32 #undef HAVE_ASM_WEAKEXT_DIRECTIVE
34 /* Define to the assembler line separator character for multiple
35 assembler instructions per line. Default is `;' */
36 #undef ASM_LINE_SEP
38 /* Define if not using ELF, but `.init' and `.fini' sections are available. */
39 #undef HAVE_INITFINI
41 /* Define if __attribute__((section("foo"))) puts quotes around foo. */
42 #undef HAVE_SECTION_QUOTES
44 /* Define if using the GNU assembler, gas. */
45 #undef HAVE_GNU_AS
47 /* Define if the assembler supports the `.set' directive. */
48 #undef HAVE_ASM_SET_DIRECTIVE
50 /* Define to the name of the assembler's directive for
51 declaring a symbol global (default `.globl'). */
52 #undef ASM_GLOBAL_DIRECTIVE
54 /* Define to the prefix before `object' or `function' in the
55 assembler's `.type' directive, if it has one. */
56 #undef ASM_TYPE_DIRECTIVE_PREFIX
58 /* Define a symbol_name as a global .symbol_name for ld. */
59 #undef HAVE_ASM_GLOBAL_DOT_NAME
61 /* Define if _Unwind_Find_FDE should be exported from glibc. */
62 #undef EXPORT_UNWIND_FIND_FDE
64 /* Define to use GNU libio instead of GNU stdio.
65 This is defined by configure under --enable-libio. */
66 #undef USE_IN_LIBIO
68 /* Define if using ELF and the assembler supports the `.previous'
69 directive. */
70 #undef HAVE_ASM_PREVIOUS_DIRECTIVE
72 /* Define if using ELF and the assembler supports the `.popsection'
73 directive. */
74 #undef HAVE_ASM_POPSECTION_DIRECTIVE
76 /* Define to the prefix Alpha/ELF GCC emits before ..ng symbols. */
77 #undef ASM_ALPHA_NG_SYMBOL_PREFIX
79 /* Define if versioning of the library is wanted. */
80 #undef DO_VERSIONING
82 /* Defined to the oldest ABI we support, like 2.1. */
83 #undef GLIBC_OLDEST_ABI
85 /* Define if static NSS modules are wanted. */
86 #undef DO_STATIC_NSS
88 /* Define if gcc uses DWARF2 unwind information for exception support. */
89 #undef HAVE_DWARF2_UNWIND_INFO
91 /* Define if gcc uses DWARF2 unwind information for exception support
92 with static variable. */
93 #undef HAVE_DWARF2_UNWIND_INFO_STATIC
95 /* Define if the compiler supports __builtin_expect. */
96 #undef HAVE_BUILTIN_EXPECT
98 /* Define if the compiler supports __builtin_memset. */
99 #undef HAVE_BUILTIN_MEMSET
101 /* Define if the __thread keyword is supported. */
102 #undef HAVE___THREAD
104 /* Define if the regparm attribute shall be used for local functions
105 (gcc on ix86 only). */
106 #undef USE_REGPARMS
108 /* Defined on PowerPC if the GCC being used has a problem with clobbering
109 certain registers (CR0, MQ, CTR, LR) in asm statements. */
110 #undef BROKEN_PPC_ASM_CR0
112 /* Define if the linker supports the -z combreloc option. */
113 #undef HAVE_Z_COMBRELOC
115 /* Define if the assembler supported .protected. */
116 #undef HAVE_PROTECTED
118 /* Define if the assembler supported .hidden. */
119 #undef HAVE_HIDDEN
121 /* Define if the compiler supports __attribute__ ((visibility (...))). */
122 #undef HAVE_VISIBILITY_ATTRIBUTE
124 /* Define if the compiler doesn't support __attribute__ ((visibility (...)))
125 together with __asm__ redirection properly. */
126 #undef HAVE_BROKEN_VISIBILITY_ATTRIBUTE
128 /* Define if the compiler doesn't support __attribute__ ((alias (...)))
129 together with __asm__ redirection properly. */
130 #undef HAVE_BROKEN_ALIAS_ATTRIBUTE
132 /* Define if _rtld_local structure should be forced into .sdata section. */
133 #undef HAVE_SDATA_SECTION
135 /* Define if binutils support TLS handling. */
136 #undef HAVE_TLS_SUPPORT
138 /* Define if the linker supports .preinit_array/.init_array/.fini_array
139 sections. */
140 #undef HAVE_INITFINI_ARRAY
142 /* Define if the access to static and hidden variables is position independent
143 and does not need relocations. */
144 #undef PI_STATIC_AND_HIDDEN
147 /* Defined to some form of __attribute__ ((...)) if the compiler supports
148 a different, more efficient calling convention. */
149 #if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
150 # define internal_function __attribute__ ((regparm (3), stdcall))
151 #endif
153 /* Linux specific: minimum supported kernel version. */
154 #undef __LINUX_KERNEL_VERSION
156 /* Override abi-tags ABI version if necessary. */
157 #undef __ABI_TAG_VERSION
159 /* An extension in gcc 2.96 and up allows the subtraction of two
160 local labels. */
161 #undef HAVE_SUBTRACT_LOCAL_LABELS
163 /* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
164 getopt determine whether a parameter is a flag or not. This features
165 was disabled later since it caused trouble. We are by default therefore
166 disabling the support as well. */
167 #undef USE_NONOPTION_FLAGS
169 /* Mach/Hurd specific: define if mig supports the `retcode' keyword. */
170 #undef HAVE_MIG_RETCODE
172 /* Mach specific: define if the `host_page_size' RPC is available. */
173 #undef HAVE_HOST_PAGE_SIZE
175 /* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available. */
176 #undef HAVE_I386_IO_PERM_MODIFY
178 /* Sparc64 specific: define if .dynamic section comes before .got for
179 shared libs. */
180 #undef SPARC64_DYNAMIC_BEFORE_GOT
183 \f */
185 #ifndef _LIBC
187 /* These symbols might be defined by some sysdeps configures.
188 They are used only in miscellaneous generator programs, not
189 in compiling libc itself. */
191 /* sysdeps/generic/configure.in */
192 #undef HAVE_PSIGNAL
194 /* sysdeps/unix/configure.in */
195 #undef HAVE_STRERROR
197 /* sysdeps/unix/common/configure.in */
198 #undef HAVE_SYS_SIGLIST
199 #undef HAVE__SYS_SIGLIST
200 #undef HAVE__CTYPE_
201 #undef HAVE___CTYPE_
202 #undef HAVE___CTYPE
203 #undef HAVE__CTYPE__
204 #undef HAVE__CTYPE
205 #undef HAVE__LOCP
207 #endif
210 \f */
212 #ifdef _LIBC
214 /* The zic and zdump programs need these definitions. */
216 #define HAVE_STRERROR 1
218 /* The locale code needs these definitions. */
220 #define HAVE_REGEX 1
222 #endif