1dnl Process this file with autoconf to produce a configure script. -*-m4-*- 2dnl Configure input file for elfutils. 3dnl 4dnl Copyright (C) 1996-2002, 2003, 2004 Red Hat, Inc. 5dnl 6dnl This program is free software; you can redistribute it and/or modify 7dnl it under the terms of the GNU General Public License as published by 8dnl the Free Software Foundation, version 2. 9dnl 10dnl This program is distributed in the hope that it will be useful, 11dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 12dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13dnl GNU General Public License for more details. 14dnl 15dnl You should have received a copy of the GNU General Public License 16dnl along with this program; if not, write to the Free Software Foundation, 17dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18dnl 19AC_INIT([Red Hat elfutils],[0.97],[http://bugzilla.redhat.com/bugzilla/], 20 [elfutils]) 21 22AC_CONFIG_AUX_DIR([config]) 23AC_CONFIG_FILES([config/Makefile]) 24 25AC_COPYRIGHT([Copyright (C) 1996-2003, 2004 Red Hat, Inc.]) 26AC_REVISION($Revision: 1.30 $) 27AC_PREREQ(2.59) dnl Minimum Autoconf version required. 28 29AM_INIT_AUTOMAKE([gnits 1.7 dist-bzip2]) 30 31AC_CONFIG_SRCDIR([libelf/libelf.h]) 32AC_CONFIG_FILES([Makefile]) 33AC_CONFIG_HEADERS([config.h]) 34 35AC_CONFIG_MACRO_DIR([m4]) 36AC_CONFIG_FILES([m4/Makefile]) 37 38dnl The RPM spec file. We substitute a few values in the file. 39AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) 40 41 42AC_CANONICAL_HOST 43 44AC_ARG_ENABLE([tls], 45AS_HELP_STRING([--enable-tls], [enable use of thread local storage]), 46AC_DEFINE(USE_TLS)) 47AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.]) 48 49dnl Add all the languages for which translations are available. 50ALL_LINGUAS= 51 52AC_PROG_CC 53AC_PROG_CPP 54AC_PROG_GCC_TRADITIONAL 55AM_GNU_GETTEXT([external]) 56AC_PROG_RANLIB 57AC_PROG_YACC 58AM_PROG_LEX 59 60AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl 61old_CFLAGS="$CFLAGS" 62CFLAGS="$CFLAGS -std=gnu99" 63AC_COMPILE_IFELSE([dnl 64int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }], 65 ac_cv_c99=yes, ac_cv_c99=no) 66CFLAGS="$old_CFLAGS"]) 67AS_IF([test "x$ac_cv_c99" != xyes], 68 AC_MSG_ERROR([gcc with C99 support required])) 69 70LOCALEDIR=$datadir 71AC_SUBST(LOCALEDIR) 72AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR") 73AH_TEMPLATE([LOCALEDIR], [Directory to place translation files in.]) 74 75DATADIRNAME=$datadir 76AC_SUBST(DATADIRNAME) 77 78dnl This test must come as early as possible after the compiler configuration 79dnl tests, because the choice of the file model can (in principle) affect 80dnl whether functions and headers are available, whether they work, etc. 81AC_SYS_LARGEFILE 82 83dnl Enable the linker to be build as a native-only linker. By default it 84dnl can handle all architectures but this comes at a cost. A native 85dnl will be slightly faster, small, and has fewer dependencies. 86native_ld=no 87AC_ARG_ENABLE([generic], 88AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl 89if 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 100fi]) 101AH_TEMPLATE([NATIVE_ELF], 102[Define to 32 or 64 if a specific implementation is wanted.]) 103AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes) 104dnl The automake generated Makefile cannot deal with macros in the name 105dnl of files if at any time there is no such file, even if the filename 106dnl would not be used. 107AS_IF([test -z "$base_cpu"], [base_cpu=none]) 108AC_SUBST(base_cpu) 109 110dnl Enable debugging via mudflap. This option will cause most libraries 111dnl to be built as archives which are statically linked into the applications. 112dnl All code, as far as possible, is compiled instrumented to catch all 113dnl the bugs valgrind is able to catch. 114use_mudflap=no 115AC_ARG_ENABLE([mudflap], 116AS_HELP_STRING([--enable-mudflap], 117[build binaries with mudflap instrumentation]), [dnl 118if 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" 124fi]) 125if test "$use_mudflap" = fail; then 126 AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option]) 127fi 128AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes) 129 130 131dnl The directories with content. 132 133dnl Documentation. 134AC_CONFIG_FILES([doc/Makefile]) 135 136dnl Support library. 137AC_CONFIG_FILES([lib/Makefile]) 138 139dnl ELF library. 140AC_CONFIG_FILES([libelf/Makefile libelf-po/Makefile.in]) 141 142dnl Higher-level ELF support library. 143AC_CONFIG_FILES([libebl/Makefile]) 144 145dnl DWARF library. 146AC_CONFIG_FILES([libdw/Makefile]) 147 148dnl CPU handling library. 149AC_CONFIG_FILES([libcpu/Makefile]) 150 151dnl Assembler library. 152AC_CONFIG_FILES([libasm/Makefile]) 153 154dnl Tools. 155AC_CONFIG_FILES([src/Makefile po/Makefile.in]) 156 157dnl Test suite. 158AC_CONFIG_FILES([tests/Makefile]) 159 160 161dnl Test of the config.h file. We hide all kinds of configuration magic 162dnl in there. 163AH_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 253AC_OUTPUT 254