1 dnl Process this file with autoconf to produce a configure script. -*-m4-*- 2 dnl Configure input file for elfutils. 3 dnl 4 dnl Copyright (C) 1996-2002, 2003, 2004 Red Hat, Inc. 5 dnl 6 dnl This program is free software; you can redistribute it and/or modify 7 dnl it under the terms of the GNU General Public License as published by 8 dnl the Free Software Foundation, version 2. 9 dnl 10 dnl This program is distributed in the hope that it will be useful, 11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 dnl GNU General Public License for more details. 14 dnl 15 dnl You should have received a copy of the GNU General Public License 16 dnl along with this program; if not, write to the Free Software Foundation, 17 dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 dnl 19 AC_INIT([Red Hat elfutils],[0.97],[http://bugzilla.redhat.com/bugzilla/], 20 [elfutils]) 21 22 AC_CONFIG_AUX_DIR([config]) 23 AC_CONFIG_FILES([config/Makefile]) 24 25 AC_COPYRIGHT([Copyright (C) 1996-2003, 2004 Red Hat, Inc.]) 26 AC_REVISION($Revision: 1.30 $) 27 AC_PREREQ(2.59) dnl Minimum Autoconf version required. 28 29 AM_INIT_AUTOMAKE([gnits 1.7 dist-bzip2]) 30 31 AC_CONFIG_SRCDIR([libelf/libelf.h]) 32 AC_CONFIG_FILES([Makefile]) 33 AC_CONFIG_HEADERS([config.h]) 34 35 AC_CONFIG_MACRO_DIR([m4]) 36 AC_CONFIG_FILES([m4/Makefile]) 37 38 dnl The RPM spec file. We substitute a few values in the file. 39 AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) 40 41 42 AC_CANONICAL_HOST 43 44 AC_ARG_ENABLE([tls], 45 AS_HELP_STRING([--enable-tls], [enable use of thread local storage]), 46 AC_DEFINE(USE_TLS)) 47 AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.]) 48 49 dnl Add all the languages for which translations are available. 50 ALL_LINGUAS= 51 52 AC_PROG_CC 53 AC_PROG_CPP 54 AC_PROG_GCC_TRADITIONAL 55 AM_GNU_GETTEXT([external]) 56 AC_PROG_RANLIB 57 AC_PROG_YACC 58 AM_PROG_LEX 59 60 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl 61 old_CFLAGS="$CFLAGS" 62 CFLAGS="$CFLAGS -std=gnu99" 63 AC_COMPILE_IFELSE([dnl 64 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }], 65 ac_cv_c99=yes, ac_cv_c99=no) 66 CFLAGS="$old_CFLAGS"]) 67 AS_IF([test "x$ac_cv_c99" != xyes], 68 AC_MSG_ERROR([gcc with C99 support required])) 69 70 LOCALEDIR=$datadir 71 AC_SUBST(LOCALEDIR) 72 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR") 73 AH_TEMPLATE([LOCALEDIR], [Directory to place translation files in.]) 74 75 DATADIRNAME=$datadir 76 AC_SUBST(DATADIRNAME) 77 78 dnl This test must come as early as possible after the compiler configuration 79 dnl tests, because the choice of the file model can (in principle) affect 80 dnl whether functions and headers are available, whether they work, etc. 81 AC_SYS_LARGEFILE 82 83 dnl Enable the linker to be build as a native-only linker. By default it 84 dnl can handle all architectures but this comes at a cost. A native 85 dnl will be slightly faster, small, and has fewer dependencies. 86 native_ld=no 87 AC_ARG_ENABLE([generic], 88 AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl 89 if test "$enable_generic" = no; then 90 case "$host_cpu" in 91 i?86) 92 AC_DEFINE(NATIVE_ELF, 32) 93 native_ld=yes 94 base_cpu=i386 95 ;; 96 *) 97 AC_MSG_ERROR([no machine-specific linker for this configuration available]) 98 ;; 99 esac 100 fi]) 101 AH_TEMPLATE([NATIVE_ELF], 102 [Define to 32 or 64 if a specific implementation is wanted.]) 103 AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes) 104 dnl The automake generated Makefile cannot deal with macros in the name 105 dnl of files if at any time there is no such file, even if the filename 106 dnl would not be used. 107 AS_IF([test -z "$base_cpu"], [base_cpu=none]) 108 AC_SUBST(base_cpu) 109 110 dnl Enable debugging via mudflap. This option will cause most libraries 111 dnl to be built as archives which are statically linked into the applications. 112 dnl All code, as far as possible, is compiled instrumented to catch all 113 dnl the bugs valgrind is able to catch. 114 use_mudflap=no 115 AC_ARG_ENABLE([mudflap], 116 AS_HELP_STRING([--enable-mudflap], 117 [build binaries with mudflap instrumentation]), [dnl 118 if test "x$enable_mudflap" = xyes; then 119 # Check whether the compiler support -fmudflap. 120 old_CFLAGS="$CFLAGS" 121 CFLAGS="$CFLAGS -fmudflap" 122 AC_TRY_COMPILE([], [], use_mudflap=yes, use_mudflap=fail) 123 CFLAGS="$old_CFLAGS" 124 fi]) 125 if test "$use_mudflap" = fail; then 126 AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option]) 127 fi 128 AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes) 129 130 131 dnl The directories with content. 132 133 dnl Documentation. 134 AC_CONFIG_FILES([doc/Makefile]) 135 136 dnl Support library. 137 AC_CONFIG_FILES([lib/Makefile]) 138 139 dnl ELF library. 140 AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in]) 141 142 dnl Higher-level ELF support library. 143 AC_CONFIG_FILES([libebl/Makefile]) 144 145 dnl DWARF library. 146 AC_CONFIG_FILES([libdw/Makefile]) 147 148 dnl CPU handling library. 149 AC_CONFIG_FILES([libcpu/Makefile]) 150 151 dnl Assembler library. 152 AC_CONFIG_FILES([libasm/Makefile]) 153 154 dnl Tools. 155 AC_CONFIG_FILES([src/Makefile po/Makefile.in]) 156 157 dnl Test suite. 158 AC_CONFIG_FILES([tests/Makefile]) 159 160 161 dnl Test of the config.h file. We hide all kinds of configuration magic 162 dnl in there. 163 AH_BOTTOM([ 164 /* Eventually we will allow multi-threaded applications to use the 165 libraries. Therefore we will add the necessary locking although 166 the macros used expand to nothing for now. */ 167 #define lock_lock(lock) ((void) (lock)) 168 #define rwlock_define(class,name) class int name 169 #define rwlock_init(lock) ((void) (lock)) 170 #define rwlock_fini(lock) ((void) (lock)) 171 #define rwlock_rdlock(lock) ((void) (lock)) 172 #define rwlock_wrlock(lock) ((void) (lock)) 173 #define rwlock_unlock(lock) ((void) (lock)) 174 #define tls_key_t void * 175 #define key_create(keyp, freefct) (1) 176 #define getspecific(key) key 177 #define setspecific(key,val) key = val 178 #define once_define(class,name) class int name 179 #define once_execute(name,fct) \ 180 do { \ 181 if (name == 0) \ 182 fct (); \ 183 name = 1; \ 184 } while (0) 185 186 /* gettext helper macro. */ 187 #define N_(Str) Str 188 189 /* Compiler-specific definitions. */ 190 #define strong_alias(name, aliasname) \ 191 extern __typeof (name) aliasname __attribute__ ((alias (#name))); 192 193 #ifdef __i386__ 194 # define internal_function_def __attribute__ ((regparm (3), stdcall)) 195 #else 196 # define internal_function_def /* nothing */ 197 #endif 198 199 # define internal_function \ 200 internal_function_def __attribute__ ((visibility ("internal"))) 201 # define internal_strong_alias(name, aliasname) \ 202 extern __typeof (name) aliasname __attribute__ ((alias (#name), visibility ("internal"))) internal_function_def; 203 204 #define attribute_hidden \ 205 __attribute__ ((visibility ("hidden"))) 206 207 /* Define ALLOW_UNALIGNED if the architecture allows operations on 208 unaligned memory locations. */ 209 #if defined __i386__ || defined __alpha__ || defined __x86_64__ || defined __ia64__ 210 # define ALLOW_UNALIGNED 1 211 #else 212 # define ALLOW_UNALIGNED 0 213 #endif 214 215 #define unlikely(expr) __builtin_expect (expr, 0) 216 #define likely(expr) __builtin_expect (expr, 1) 217 218 #define obstack_calloc(ob, size) \ 219 ({ size_t _s = (size); memset (obstack_alloc (ob, _s), '\0', _s); }) 220 #define obstack_strdup(ob, str) \ 221 ({ const char *_s = (str); obstack_copy0 (ob, _s, strlen (_s)); }) 222 #define obstack_strndup(ob, str, n) \ 223 ({ const char *_s = (str); obstack_copy0 (ob, _s, strnlen (_s, n)); }) 224 225 #if __STDC_VERSION__ >= 199901L 226 # define flexarr_size /* empty */ 227 #else 228 # define flexarr_size 0 229 #endif 230 231 /* Calling conventions. */ 232 #ifdef __i386__ 233 # define CALLING_CONVENTION regparm (3), stdcall 234 # define AND_CALLING_CONVENTION , regparm (3), stdcall 235 #else 236 # define CALLING_CONVENTION 237 # define AND_CALLING_CONVENTION 238 #endif 239 240 /* Avoid PLT entries. */ 241 #ifdef PIC 242 # define INTUSE(name) _INTUSE(name) 243 # define _INTUSE(name) __##name##_internal 244 # define INTDEF(name) _INTDEF(name) 245 # define _INTDEF(name) \ 246 extern __typeof__ (name) __##name##_internal __attribute__ ((alias (#name))); 247 #else 248 # define INTUSE(name) name 249 # define INTDEF(name) /* empty */ 250 #endif 251 ]) 252 253 AC_OUTPUT 254
