configure.ac 20.7 KB
Newer Older
Niels Möller's avatar
Niels Möller committed
1 2
dnl -*- mode: shell-script; sh-indentation: 2; -*-

3 4
dnl Process this file with autoconf to produce a configure script.

Niels Möller's avatar
Niels Möller committed
5
AC_INIT([nettle], [2.6], [nettle-bugs@lists.lysator.liu.se])
6
AC_PREREQ(2.61)
7 8 9 10
AC_CONFIG_SRCDIR([arcfour.c])
# Needed to stop autoconf from looking for files in parent directories.
AC_CONFIG_AUX_DIR([.])

11
AC_CONFIG_HEADER([config.h])
12

13
LIBNETTLE_MAJOR=4
14
LIBNETTLE_MINOR=5
15

16
LIBHOGWEED_MAJOR=2
17
LIBHOGWEED_MINOR=3
18

19 20
AC_CANONICAL_HOST

21 22 23 24 25 26
# Command line options
AC_ARG_WITH(include-path,
  AC_HELP_STRING([--with-include-path], [A colon-separated list of directories to search for include files]),,
  [with_include_path=''])

if test x$with_include_path != x ; then
27
  CPPFLAGS="$CPPFLAGS -I`echo $with_include_path | sed 's/:/ -I/g'`"
28 29 30 31 32 33 34
fi

AC_ARG_WITH(lib-path,
  AC_HELP_STRING([--with-lib-path], [A colon-separated list of directories to search for libraries]),,
  [with_lib_path=''])

if test x$with_lib_path != x ; then
35
  LDFLAGS="$LDFLAGS -L`echo $with_lib_path | sed 's/:/ -L/g'`"
36 37
fi

38 39 40 41
AC_ARG_ENABLE(public-key,
  AC_HELP_STRING([--disable-public-key], [Disable public key algorithms]),,
  [enable_public_key=yes])

42
AC_ARG_ENABLE(assembler,
43 44
  AC_HELP_STRING([--disable-assembler],[Disable assembler code]),,
  [enable_assembler=yes])
45

46 47 48 49
AC_ARG_ENABLE(static,
  AC_HELP_STRING([--disable-static], [Do not build any static library]),,
  [enable_static=yes])

50
AC_ARG_ENABLE(shared,
51 52
  AC_HELP_STRING([--disable-shared], [Do not build any shared library]),,
  [enable_shared=yes])
53

54 55 56 57 58
AC_ARG_ENABLE(pic,
  AC_HELP_STRING([--disable-pic],
  [Do not try to compile library files as position independent code]),,
  [enable_pic=yes])

59 60 61
AC_ARG_ENABLE(openssl,
  AC_HELP_STRING([--disable-openssl], [Do not include openssl glue in the benchmark program]),,
  [enable_openssl=yes])
62 63 64 65 66

AC_ARG_ENABLE(gcov,
  AC_HELP_STRING([--enable-gcov], [Instrument for gcov (requires a modern gcc)]),,
  [enable_gcov=no])

Sam Thursfield's avatar
Sam Thursfield committed
67
AC_ARG_ENABLE(documentation,
68
  AC_HELP_STRING([--disable-documentation], [Omit building and installing the documentation. (default=auto)]),,
Sam Thursfield's avatar
Sam Thursfield committed
69 70
  [enable_documentation=auto])

71 72 73 74 75
LSH_RPATH_INIT([`echo $with_lib_path | sed 's/:/ /g'` \
    `echo $exec_prefix | sed "s@^NONE@$prefix/lib@g" | sed "s@^NONE@$ac_default_prefix/lib@g"` \
    /usr/local/lib /sw/local/lib /sw/lib \
    /usr/gnu/lib /opt/gnu/lib /sw/gnu/lib /usr/freeware/lib /usr/pkg/lib])

76
# Checks for programs.
Niels Möller's avatar
Niels Möller committed
77
AC_PROG_CC
78 79 80 81 82 83 84 85

# When $CC foo.c -o foo creates both foo and foo.exe, autoconf picks
# up the foo.exe and sets exeext to .exe. That is correct for cygwin,
# which has some kind of magic link from foo to foo.exe, but not for
# rntcl. A better check for the cygwin case would check if the
# contents of foo and foo.exe are equal; in the rntcl case, foo is a
# sh script, and foo.exe is a windows executable.

Niels Möller's avatar
Niels Möller committed
86
if test "x$CC" = xrntcl ; then
87
    AC_MSG_NOTICE([Compiling with rntcl; clearing EXEEXT and disabling assembler])
88 89
    ac_exeext=''
    ac_cv_exeext=''
Niels Möller's avatar
Niels Möller committed
90
    EXEEXT=''
91
    enable_assembler=no
92 93
fi

94 95 96 97
# Used by the testsuite only
AC_PROG_CXX

AC_LANG_PUSH(C++)
98 99
AC_TRY_COMPILE([],[return 0;],[IF_CXX=''], [IF_CXX='#'])
AC_SUBST([IF_CXX])
100 101
AC_LANG_POP

Niels Möller's avatar
Niels Möller committed
102
AC_PROG_MAKE_SET
Niels Möller's avatar
Niels Möller committed
103
AC_PROG_RANLIB
104
AC_CHECK_TOOL(NM, nm, strings)
105 106
# Used only for the GNU-stack configure test.
AC_CHECK_TOOL(OBJDUMP, objdump, false)
107
AC_CHECK_TOOL(AR, ar, false)
Niels Möller's avatar
Niels Möller committed
108

109
if test "x$ac_cv_prog_cc_stdc" = xno ; then
110
  AC_ERROR([the C compiler doesn't handle ANSI-C]) #'
Niels Möller's avatar
Niels Möller committed
111
fi
112

113 114
AC_PROG_INSTALL

115 116 117 118
# According to the autoconf manual, needs install-sh from
# autoconf-2.60 or automake-1.10 to avoid races.
AC_PROG_MKDIR_P

119 120
AC_PROG_LN_S

121 122
LSH_DEPENDENCY_TRACKING

123
if test x$enable_dependency_tracking = xyes ; then
124 125 126
  # Since the makefiles use include to get the dependency files, we must
  # make sure that the files exist. We generate some more files than are
  # actually needed.
127

128
  AC_CONFIG_COMMANDS([dummy-dep-files],
129
  [(cd "$srcdir" && find . '(' -name '*.c' -o -name '*.cxx' ')' -print) \
130
 | sed 's/\.c\(xx\)\{0,1\}$//' | (while read f; do echo > "$f.o.d"; echo > "$f.po.d"; done)
131
])
132
fi
133

134
# Figure out ABI. Currently, configurable only by setting CFLAGS.
135 136
ABI=standard

137
case "$host_cpu" in
138
  [x86_64 | amd64])
139
    AC_TRY_COMPILE([
140 141
#if defined(__x86_64__) || defined(__arch64__)
#error 64-bit x86
142 143
#endif
    ], [], [
144
      ABI=32
145
    ], [
146
      ABI=64
147
    ])
148
    ;;
149
  *sparc*)
150 151 152 153 154
    AC_TRY_COMPILE([
#if defined(__sparcv9) || defined(__arch64__)
#error 64-bit sparc
#endif
    ], [], [
155
      ABI=32
156
    ], [
157
      ABI=64
158
    ])
159
    ;;
160 161 162
esac

if test "x$ABI" != xstandard ; then
163
  AC_MSG_NOTICE([Compiler uses $ABI-bit ABI. To change, set CC.])
164 165 166 167 168 169 170 171 172
  if test "$libdir" = '${exec_prefix}/lib' ; then
    # Try setting a better default
    case "$host_cpu:$host_os:$ABI" in
      *:solaris*:32|*:sunos*:32)
	libdir='${exec_prefix}/lib'
	;;
      *:solaris*:64|*:sunos*:64)
	libdir='${exec_prefix}/lib/64'
	;;
173 174 175 176 177 178 179 180 181 182 183 184 185 186 187
      # Linux conventions are a mess... According to the Linux File
      # Hierarchy Standard, all architectures except IA64 puts 32-bit
      # libraries in lib, and 64-bit in lib64. Some distributions,
      # e.g., Fedora and Gentoo, adhere to this standard, while at
      # least Debian has decided to put 64-bit libraries in lib and
      # 32-bit libraries in lib32.
      
      # We try to figure out the convention, except if we're cross
      # compiling. We use lib${ABI} if /usr/lib${ABI} exists and
      # appears to not be a symlink to a different name.
      *:linux*:32|*:linux*:64)
	if test "$cross_compiling" = yes ; then
          AC_MSG_WARN([Cross compiling for linux. Can't guess if libraries go in lib${ABI} or lib.]); dnl '
	else
	  # The dash builtin pwd tries to be "helpful" and remember
188
	  # symlink names. Use -P option, and hope it's portable enough.
189
	  test -d /usr/lib${ABI} \
190
	    && (cd /usr/lib${ABI} && pwd -P | grep >/dev/null "/lib${ABI}"'$') \
191 192
	    && libdir='${exec_prefix}/'"lib${ABI}"
	fi
193 194 195 196 197 198 199 200 201 202 203
	;;
      # On freebsd, it seems 32-bit libraries are in lib32,
      # and 64-bit in lib. Don't know about "kfreebsd", does
      # it follow the Linux fhs conventions?
      *:freebsd*:32)
	libdir='${exec_prefix}/lib32'
	;;
      *:freebsd*:64)
	libdir='${exec_prefix}/lib'
	;;
      *)
204
        AC_MSG_WARN([Don't know where to install $ABI-bit libraries on this system.]); dnl '
205 206 207 208

    esac
    AC_MSG_NOTICE([Libraries to be installed in $libdir.])
  fi
209 210 211 212
fi

# Select assembler code
asm_path=
213 214 215
if test "x$enable_assembler" = xyes ; then
  case "$host_cpu" in
    [i?86* | k[5-8]* | pentium* | athlon])
216
      asm_path=x86
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
      ;;
    [x86_64 | amd64])
      if test "$ABI" = 64 ; then
	asm_path=x86_64
      else
	asm_path=x86
      fi
      ;;
    *sparc*)
      if test "$ABI" = 64 ; then
	asm_path=sparc64
      else
	asm_path=sparc32
      fi
      ;;
    *)
      enable_assembler=no
      ;;
  esac
fi
237
# echo "enable_assembler: $enable_assembler, asm_path: $asm_path"
238
asm_file_list=""
239

240
if test "x$enable_assembler" = xyes ; then
241
  if test -n "$asm_path"; then
Niels Möller's avatar
Niels Möller committed
242
    AC_MSG_NOTICE([Looking for assembler files in $asm_path/.])
243
    for tmp_f in aes-encrypt-internal.asm aes-decrypt-internal.asm \
244
		 arcfour-crypt.asm camellia-crypt-internal.asm \
245 246
		 md5-compress.asm memxor.asm \
		 salsa20-crypt.asm salsa20-core-internal.asm \
247
		 serpent-encrypt.asm serpent-decrypt.asm \
248
		 sha1-compress.asm machine.m4; do
249 250
#       echo "Looking for $srcdir/$asm_path/$tmp_f"
      if test -f "$srcdir/$asm_path/$tmp_f"; then
251
#        echo found
252
	asm_file_list="$asm_file_list $tmp_f"
253
        AC_CONFIG_LINKS($tmp_f:$asm_path/$tmp_f)
254 255
      fi
    done
256
    if test -z "$asm_file_list"; then
257 258 259 260 261 262
      enable_assembler=no
      AC_MSG_WARN([No assembler files found.])
    fi
  fi
fi

263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278
# Besides getting correct dependencies, the explicit rules also tell
# make that the .s files "ought to exist", so they are preferred over
# .c files.
AC_CONFIG_COMMANDS([asm.d],
    [ for f in $asm_file_list
      do
        case $f in
	  *.asm)
	    echo "`basename $f .asm`.s : $f "'$(srcdir)/asm.m4 machine.m4 config.m4'
	    ;;
	esac
      done > asm.d
    ],
    [ asm_file_list="$asm_file_list" ]
)

279 280 281
LSH_CCPIC

SHLIBCFLAGS="$CCPIC"
282

283 284 285
IF_DLL='#'
LIBNETTLE_FILE_SRC='$(LIBNETTLE_FORLINK)'
LIBHOGWEED_FILE_SRC='$(LIBHOGWEED_FORLINK)'
286
EMULATOR=''
Martin Storsjö's avatar
Martin Storsjö committed
287
W64_ABI=no
288

289
case "$host_os" in
Martin Storsjö's avatar
Martin Storsjö committed
290
  mingw32*|cygwin*)
291 292 293 294
    # The actual DLLs, e.g. libnettle-$major-$minor.dll, are normally
    # installed into the bin dir (or more exactly $libdir/../bin, for
    # automake), while libnettle.dll.a, which is a stub file for
    # linking to the DLL, is installed into the lib dir.
Martin Storsjö's avatar
Martin Storsjö committed
295 296 297 298 299 300 301 302 303 304
    case "$host_os" in
      mingw32*)
        LIBNETTLE_FORLINK='libnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll'
        LIBHOGWEED_FORLINK='libhogweed-$(LIBHOGWEED_MAJOR)-$(LIBHOGWEED_MINOR).dll'
        ;;
      cygwin*)
        LIBNETTLE_FORLINK='cygnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll'
        LIBHOGWEED_FORLINK='cyghogweed-$(LIBHOGWEED_MAJOR)-$(LIBHOGWEED_MINOR).dll'
        ;;
    esac
305 306 307 308 309 310 311 312 313 314
    if test "x$cross_compiling" = xyes ; then
	case "$ABI" in
	    64)
		EMULATOR=wine64
		;;
	    *)
		EMULATOR=wine
		;;
	esac
    fi
Martin Storsjö's avatar
Martin Storsjö committed
315 316 317
    if test "x$ABI" = x64 ; then
        W64_ABI=yes
    fi
318 319
    LIBNETTLE_SONAME=''
    LIBNETTLE_FILE='libnettle.dll.a'
320
    LIBNETTLE_FILE_SRC='$(LIBNETTLE_FILE)'
321
    LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBNETTLE_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive'
322 323 324
    LIBNETTLE_LIBS='-Wl,--no-whole-archive $(LIBS)'

    LIBHOGWEED_SONAME=''
325
    LIBHOGWEED_FILE='libhogweed.dll.a'
326
    LIBHOGWEED_FILE_SRC='$(LIBHOGWEED_FILE)'
327
    LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBHOGWEED_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive'
328
    LIBHOGWEED_LIBS='-Wl,--no-whole-archive $(LIBS) libnettle.dll.a'
329
    IF_DLL=''
330
    ;;
Grant Robinson's avatar
Grant Robinson committed
331
  darwin*)
332
    LIBNETTLE_FORLINK=libnettle.dylib
333 334
    LIBNETTLE_SONAME='libnettle.$(LIBNETTLE_MAJOR).dylib'
    LIBNETTLE_FILE='libnettle.$(LIBNETTLE_MAJOR).$(LIBNETTLE_MINOR).dylib'
335
    LIBNETTLE_LINK='$(CC) $(CFLAGS) -dynamiclib $(LDFLAGS) -install_name ${libdir}/$(LIBNETTLE_SONAME) -compatibility_version $(LIBNETTLE_MAJOR) -current_version $(LIBNETTLE_MAJOR).$(LIBNETTLE_MINOR)'
336 337
    LIBNETTLE_LIBS=''

338
    LIBHOGWEED_FORLINK=libhogweed.dylib
339 340
    LIBHOGWEED_SONAME='libhogweed.$(LIBHOGWEED_MAJOR).dylib'
    LIBHOGWEED_FILE='libhogweed.$(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR).dylib'
341
    LIBHOGWEED_LINK='$(CC) $(CFLAGS) -dynamiclib -L. $(LDFLAGS) -install_name ${libdir}/$(LIBHOGWEED_SONAME) -compatibility_version $(LIBHOGWEED_MAJOR) -current_version $(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR)'
342
    LIBHOGWEED_LIBS='-lnettle -lgmp'
Grant Robinson's avatar
Grant Robinson committed
343
    ;;
344 345 346 347 348 349 350
  solaris*)
    # Sun's ld uses -h to set the soname, and this option is passed
    # through by both Sun's compiler and gcc. Might not work with GNU
    # ld, but it's unusual to use GNU ld on Solaris.
    LIBNETTLE_FORLINK=libnettle.so
    LIBNETTLE_SONAME='$(LIBNETTLE_FORLINK).$(LIBNETTLE_MAJOR)'
    LIBNETTLE_FILE='$(LIBNETTLE_SONAME).$(LIBNETTLE_MINOR)'
351
    LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -G -h $(LIBNETTLE_SONAME)'
352 353 354 355 356
    LIBNETTLE_LIBS=''

    LIBHOGWEED_FORLINK=libhogweed.so
    LIBHOGWEED_SONAME='$(LIBHOGWEED_FORLINK).$(LIBHOGWEED_MAJOR)'
    LIBHOGWEED_FILE='$(LIBHOGWEED_SONAME).$(LIBHOGWEED_MINOR)'
357
    LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -L. -G -h $(LIBHOGWEED_SONAME)'
358 359
    LIBHOGWEED_LIBS='-lnettle -lgmp'
    ;;
360
  *)
361 362 363
    LIBNETTLE_FORLINK=libnettle.so
    LIBNETTLE_SONAME='$(LIBNETTLE_FORLINK).$(LIBNETTLE_MAJOR)'
    LIBNETTLE_FILE='$(LIBNETTLE_SONAME).$(LIBNETTLE_MINOR)'
364
    LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,-soname=$(LIBNETTLE_SONAME)'
365 366
    LIBNETTLE_LIBS=''

367
    LIBHOGWEED_FORLINK=libhogweed.so
368 369
    LIBHOGWEED_SONAME='$(LIBHOGWEED_FORLINK).$(LIBHOGWEED_MAJOR)'
    LIBHOGWEED_FILE='$(LIBHOGWEED_SONAME).$(LIBHOGWEED_MINOR)'
370
    LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -L. -shared -Wl,-soname=$(LIBHOGWEED_SONAME)'
371 372 373 374 375 376
    # Requested by debian, to make linking with only -lhogweed work
    # (does not work in general, e.g., with static linking all of
    # -lhogweed -lgmp -lnettle are still required). Also makes dlopen
    # of libhogweed.so work, without having to use RTLD_GLOBAL.
    # Depends on -L. above, to locate nettle.so.
    LIBHOGWEED_LIBS='-lnettle -lgmp'
377 378
    ;;
esac
379

380 381 382 383
if test "x$enable_pic" = xyes; then
  CCPIC_MAYBE="$CCPIC"
else
  CCPIC_MAYBE=''
384
fi
385
AC_SUBST([CCPIC_MAYBE])
386

387
ASM_SYMBOL_PREFIX=''
388
ASM_ELF_STYLE='no'
389 390 391
# GNU as default is to use @
ASM_TYPE_FUNCTION='@function'
ASM_TYPE_PROGBITS='@progbits'
392
ASM_MARK_NOEXEC_STACK=''
393
ASM_ALIGN_LOG=''
394 395 396 397 398 399 400

if test x$enable_assembler = xyes ; then
  AC_CACHE_CHECK([if globals are prefixed by underscore],
  nettle_cv_asm_underscore,
  [ # Default is no underscore
    nettle_cv_asm_underscore=no
    AC_COMPILE_IFELSE(
401
      [AC_LANG_SOURCE([int a_global_symbol;])],
402
      [ $NM conftest.$OBJEXT >conftest.out
403 404 405 406 407 408 409 410
        if grep _a_global_symbol conftest.out >/dev/null ; then
          nettle_cv_asm_underscore=yes
        elif grep a_global_symbol conftest.out >/dev/null ; then
          nettle_cv_asm_underscore=no
        else
          AC_MSG_WARN([nm doesn't list a_global_symbol at all])
	fi],
      [AC_MSG_WARN([test program with a single global could not be compiled!?])])])
411
  if test x$nettle_cv_asm_underscore = xyes ; then
412
    ASM_SYMBOL_PREFIX='_'
413
  fi
414

415 416 417
  AC_CACHE_CHECK([for ELF-style .type,%function pseudo-ops],
    [nettle_cv_asm_type_percent_function],
    [GMP_TRY_ASSEMBLE([
418 419
.text
.globl foo
420
.type foo,%function
421 422 423 424
foo:
.Lend:

.size foo, .Lend - foo
425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444
],
       [nettle_cv_asm_type_percent_function=yes],
       [nettle_cv_asm_type_percent_function=no])])

dnl Needs double quote for the # character
  AC_CACHE_CHECK([[for ELF-style .type,#function pseudo-ops]],
    [nettle_cv_asm_type_hash_function],
    [GMP_TRY_ASSEMBLE([
.text
.globl foo
.type foo,#function
foo:
.Lend:

.size foo, .Lend - foo
],
       [nettle_cv_asm_type_hash_function=yes],
       [nettle_cv_asm_type_hash_function=no])])

  if test x$nettle_cv_asm_type_percent_function = xyes ; then
445
    ASM_ELF_STYLE='yes'
446
    ASM_TYPE_FUNCTION='%function'
447
    ASM_TYPE_PROGBITS='%progbits'
448 449 450 451
  else
    if test x$nettle_cv_asm_type_hash_function = xyes ; then
      ASM_ELF_STYLE='yes'
      ASM_TYPE_FUNCTION='#function'
452
      ASM_TYPE_PROGBITS='#progbits'
453
    fi
454
  fi
455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478

  AC_CACHE_CHECK([if we should use a .note.GNU-stack section],
  nettle_cv_asm_gnu_stack,
  [ # Default
    nettle_cv_asm_gnu_stack=no

    cat >conftest.c <<EOF
int foo() { return 0; }
EOF
    nettle_compile="$CC $CFLAGS $CPPFLAGS -c conftest.c >conftest.out 2>&1"
    if AC_TRY_EVAL(nettle_compile); then
      cat conftest.out >&AC_FD_CC
      $OBJDUMP -x conftest.o | grep '\.note\.GNU-stack' > /dev/null \
      && nettle_cv_asm_gnu_stack=yes
    else
      cat conftest.out >&AC_FD_CC
      echo "configure: failed program was:" >&AC_FD_CC
      cat conftest.s >&AC_FD_CC
    fi
    rm -f conftest.*])
  if test x$nettle_cv_asm_gnu_stack = xyes ; then
    ASM_MARK_NOEXEC_STACK='.section .note.GNU-stack,"",TYPE_PROGBITS'
  fi

479 480 481 482 483 484 485
  AC_CACHE_CHECK([if .align assembly directive is logarithmic],
    [nettle_cv_asm_align_log],
    [GMP_TRY_ASSEMBLE([
.align 3
],
       [nettle_cv_asm_align_log=yes],
       [nettle_cv_asm_align_log=no])])
486
  ASM_ALIGN_LOG="$nettle_cv_asm_align_log"
487 488 489
fi

AC_SUBST(ASM_SYMBOL_PREFIX)
490
AC_SUBST(ASM_ELF_STYLE)
491
AC_SUBST(ASM_TYPE_FUNCTION)
492
AC_SUBST(ASM_TYPE_PROGBITS)
493
AC_SUBST(ASM_MARK_NOEXEC_STACK)
494
AC_SUBST(ASM_ALIGN_LOG)
Martin Storsjö's avatar
Martin Storsjö committed
495
AC_SUBST(W64_ABI)
496
AC_SUBST(EMULATOR)
497

498
AC_SUBST(SHLIBCFLAGS)
499 500 501 502 503 504

AC_SUBST(LIBNETTLE_MAJOR)
AC_SUBST(LIBNETTLE_MINOR)
AC_SUBST(LIBNETTLE_FORLINK)
AC_SUBST(LIBNETTLE_SONAME)
AC_SUBST(LIBNETTLE_FILE)
505
AC_SUBST(LIBNETTLE_FILE_SRC)
506 507 508
AC_SUBST(LIBNETTLE_LINK)
AC_SUBST(LIBNETTLE_LIBS)

Niels Möller's avatar
Niels Möller committed
509 510 511 512 513
AC_SUBST(LIBHOGWEED_MAJOR)
AC_SUBST(LIBHOGWEED_MINOR)
AC_SUBST(LIBHOGWEED_FORLINK)
AC_SUBST(LIBHOGWEED_SONAME)
AC_SUBST(LIBHOGWEED_FILE)
514
AC_SUBST(LIBHOGWEED_FILE_SRC)
Niels Möller's avatar
Niels Möller committed
515 516
AC_SUBST(LIBHOGWEED_LINK)
AC_SUBST(LIBHOGWEED_LIBS)
Niels Möller's avatar
Niels Möller committed
517

Niels Möller's avatar
Niels Möller committed
518
AC_PATH_PROG(M4, m4, m4)
519

520 521 522 523
if test "x$enable_gcov" = "xyes"; then
  CFLAGS="$CFLAGS -ftest-coverage -fprofile-arcs"
fi

524
# Checks for typedefs, structures, and compiler characteristics.
Niels Möller's avatar
Niels Möller committed
525
AC_C_CONST
Niels Möller's avatar
Niels Möller committed
526 527 528 529
AC_C_INLINE
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
Niels Möller's avatar
Niels Möller committed
530
AC_CHECK_SIZEOF(long)
531 532 533 534
AC_CHECK_ALIGNOF(uint64_t)

ALIGNOF_UINT64_T="$ac_cv_alignof_uint64_t"
AC_SUBST(ALIGNOF_UINT64_T)
Niels Möller's avatar
Niels Möller committed
535

Niels Möller's avatar
Niels Möller committed
536
AC_CHECK_HEADERS([openssl/blowfish.h openssl/des.h openssl/cast.h openssl/aes.h],,
537 538 539
[enable_openssl=no
 break])

Niels Möller's avatar
Niels Möller committed
540
LSH_FUNC_ALLOCA
Niels Möller's avatar
Niels Möller committed
541
LSH_FUNC_STRERROR
Niels Möller's avatar
Niels Möller committed
542

Niels Möller's avatar
Niels Möller committed
543
# Needed by the supplied memcmp.c
Niels Möller's avatar
Niels Möller committed
544
AC_C_BIGENDIAN
Niels Möller's avatar
Niels Möller committed
545 546
AC_REPLACE_FUNCS(memxor)

Niels Möller's avatar
Niels Möller committed
547
LSH_GCC_ATTRIBUTES
Niels Möller's avatar
Niels Möller committed
548

549 550
# According to Simon Josefsson, looking for uint32_t and friends in
# sys/types.h is needed on some systems, in particular cygwin.
551
AX_CREATE_STDINT_H([nettle-stdint.h], [sys/types.h])
552

Niels Möller's avatar
Niels Möller committed
553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576
# Check for file locking. We (AC_PROG_CC?) have already checked for
# sys/types.h and unistd.h.
AC_CACHE_CHECK([for fcntl file locking],
		nettle_cv_fcntl_locking,
[AC_TRY_COMPILE([
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
],[
int op = F_SETLKW;
struct flock fl;
],
nettle_cv_fcntl_locking=yes,
nettle_cv_fcntl_locking=no)])

AH_TEMPLATE([HAVE_FCNTL_LOCKING], [Define if fcntl file locking is available])
if test "x$nettle_cv_fcntl_locking" = "xyes" ; then
  AC_DEFINE(HAVE_FCNTL_LOCKING)
fi

577 578 579
# Checks for libraries
AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
    [AC_MSG_WARN(
Niels Möller's avatar
Niels Möller committed
580
[GNU MP not found, or not 3.1 or up, see http://gmplib.org/.
581 582 583
Support for public key algorithms will be unavailable.])]
    enable_public_key=no)

Niels Möller's avatar
Niels Möller committed
584 585 586 587 588 589
# Add -R flags needed to run programs linked with gmp
LSH_RPATH_FIX

AH_TEMPLATE([HAVE_MPZ_POWM_SEC], [Define if mpz_powm_sec is available (appeared in GMP-5)])
AC_CHECK_FUNC(__gmpz_powm_sec, [AC_DEFINE(HAVE_MPZ_POWM_SEC)])

590 591
AH_TEMPLATE([WITH_HOGWEED], [Defined if public key features are enabled])

592
if test "x$enable_public_key" = xyes ; then
593 594 595 596 597 598
  AC_DEFINE(WITH_HOGWEED)
  IF_HOGWEED=''
else
  IF_HOGWEED='#'
fi

599 600 601 602 603 604
if test "x$enable_static" = xyes ; then
  IF_STATIC=''
else
  IF_STATIC='#'
fi

605 606
if test "x$enable_shared" = xyes ; then
  IF_SHARED=''
607
else
608
  IF_SHARED='#'
609 610
fi

Sam Thursfield's avatar
Sam Thursfield committed
611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632
# Documentation tools
if test "x$enable_documentation" != "xno"; then
  AC_PATH_PROG(MAKEINFO, makeinfo, not-found)

  if test "x$MAKEINFO" != "xnot-found"; then
    enable_documentation=yes
    AC_SUBST(MAKEINFO)
  else
    if test "x$enable_documentation" == "xauto" ; then
      enable_documentation=no
    else
      AC_MSG_ERROR([Cannot find 'makeinfo', required for documentation.])
    fi
  fi
fi

if test "x$enable_documentation" = "xyes" ; then
  IF_DOCUMENTATION=''
else
  IF_DOCUMENTATION='#'
fi

633
AC_SUBST(IF_HOGWEED)
634
AC_SUBST(IF_STATIC)
635
AC_SUBST(IF_SHARED)
Sam Thursfield's avatar
Sam Thursfield committed
636
AC_SUBST(IF_DOCUMENTATION)
637
AC_SUBST(IF_DLL)
638

639 640
OPENSSL_LIBFLAGS=''

641
# Check for openssl's libcrypto (used only for benchmarking)
642 643 644 645 646 647 648
if test x$enable_openssl = xyes ; then
  AC_CHECK_LIB(crypto, BF_ecb_encrypt,
    [OPENSSL_LIBFLAGS='-lcrypto'],
    [enable_openssl=no])
fi

AH_TEMPLATE([WITH_OPENSSL],
649
	    [Define if you have openssl's libcrypto (used for benchmarking)]) dnl'
650 651 652 653

if test x$enable_openssl = xyes ; then
  AC_DEFINE(WITH_OPENSSL)
fi
654 655

AC_SUBST(OPENSSL_LIBFLAGS)
656

657
AH_BOTTOM(
658 659 660 661 662 663
[#if defined(__x86_64__) || defined(__arch64__)
# define HAVE_NATIVE_64_BIT 1
#else
/* Needs include of <limits.h> before use. */
# define HAVE_NATIVE_64_BIT (SIZEOF_LONG * CHAR_BIT >= 64)
#endif
664 665
])

666 667 668 669 670 671 672
# clock_gettime is in librt on *-*-osf5.1 and on glibc, so add -lrt to
# BENCH_LIBS if needed. On linux (tested on x86_32, 2.6.26),
# clock_getres reports ns accuracy, while in a quick test on osf
# clock_getres said only 1 millisecond.

old_LIBS="$LIBS"
AC_SEARCH_LIBS(clock_gettime, rt, [
673
  AC_DEFINE([HAVE_CLOCK_GETTIME],1,[Define if clock_gettime is available])])
674 675 676 677 678
BENCH_LIBS="$LIBS"
LIBS="$old_LIBS"

AC_SUBST(BENCH_LIBS)

Niels Möller's avatar
Niels Möller committed
679 680
# Set these flags *last*, or else the test programs won't compile
if test x$GCC = xyes ; then
681
  # Using -ggdb3 makes (some versions of) Redhat's gcc-2.96 dump core
682
  if $CC --version | grep '^2\.96$' 1>/dev/null 2>&1; then
683 684 685 686
    true
  else
    CFLAGS="$CFLAGS -ggdb3"
  fi
687
  # FIXME: It would be better to actually test if this option works and/or is needed.
Niels Möller's avatar
Niels Möller committed
688
  # Or perhaps use -funsigned-char.
689
  if $CC --version | grep 'gcc.* 4\.' 1>/dev/null 2>&1; then
690 691
    CFLAGS="$CFLAGS -Wno-pointer-sign"
  fi
692 693 694
  CFLAGS="$CFLAGS -Wall -W \
  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes \
  -Wpointer-arith -Wbad-function-cast -Wnested-externs"
Niels Möller's avatar
Niels Möller committed
695 696 697

# Don't enable -Wcast-align as it results in tons of warnings in the
# DES code. And when using stdio.
698 699
# Don't enable -Waggregate-return, as that causes warnings for glibc
# inttypes.h.
Niels Möller's avatar
Niels Möller committed
700
fi
Niels Möller's avatar
Niels Möller committed
701

702 703
AC_CONFIG_FILES([config.make config.m4 Makefile])
AC_CONFIG_FILES([tools/Makefile testsuite/Makefile examples/Makefile])
704
AC_CONFIG_FILES([nettle.pc hogweed.pc])
705 706

AC_OUTPUT
707

708 709 710 711 712 713 714 715 716
AC_MSG_NOTICE([summary of build options:

  Version:           ${PACKAGE_STRING}
  Host type:         ${host}
  ABI:               ${ABI}
  Assembly files:    ${asm_path:-none}
  Install prefix:    ${prefix}
  Library directory: ${libdir}
  Compiler:          ${CC}
717
  Static libraries:  ${enable_static}
718 719
  Shared libraries:  ${enable_shared}
  Public key crypto: ${enable_public_key}
Sam Thursfield's avatar
Sam Thursfield committed
720
  Documentation:     ${enable_documentation}
721
])