File: configure.ac

package info (click to toggle)
nettle 1.15-5
  • links: PTS, VCS
  • area: main
  • in suites: lenny
  • size: 3,184 kB
  • ctags: 2,262
  • sloc: ansic: 18,917; sh: 3,259; asm: 1,217; makefile: 519; cpp: 77
file content (413 lines) | stat: -rw-r--r-- 11,404 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
dnl -*- mode: shell-script; sh-indentation: 2; -*-

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

AC_INIT([nettle], [1.15], [nettle-bugs@lists.lysator.liu.se])
AC_PREREQ(2.50)
AC_CONFIG_SRCDIR([arcfour.c])
# Needed to stop autoconf from looking for files in parent directories.
AC_CONFIG_AUX_DIR([.])

AC_CONFIG_HEADER([config.h])

SHLIBMAJOR=2
SHLIBMINOR=6

AC_CANONICAL_HOST

# 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$with_include_path != x ; then
  CPPFLAGS="$CPPFLAGS -I`echo $with_include_path | sed 's/:/ -I/g'`"
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$with_lib_path != x ; then
  LDFLAGS="$LDFLAGS -L`echo $with_lib_path | sed 's/:/ -L/g'`"
fi

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

AC_ARG_ENABLE(assembler,
  AC_HELP_STRING([--disable-assembler],[Disable assembler code]),,
  [enable_assembler=yes])

AC_ARG_ENABLE(shared,
  AC_HELP_STRING([--enable-shared], [Build a shared library]),,
  [enable_shared=no])

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

AC_ARG_ENABLE(openssl,
  AC_HELP_STRING([--disable-openssl], [Do not include openssl glue in the benchmark program]),,
  [enable_openssl=yes])
  
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])

# Checks for programs.
AC_PROG_CC

# 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.

if test "x$CC" = xrntcl ; then
    AC_MSG_NOTICE([Compiling with rntcl; clearing EXEEXT and disabling assembler])
    ac_exeext=''
    ac_cv_exeext=''
    EXEEXT=''
    enable_assembler=no
fi

# Used by the testsuite only
AC_PROG_CXX

AC_LANG_PUSH(C++)
AC_TRY_COMPILE([],[return 0;],[CXX_TESTS='cxx-test$(EXEEXT)'], [CXX_TESTS=''])
AC_SUBST([CXX_TESTS])
AC_LANG_POP

AC_PROG_MAKE_SET
AC_PROG_RANLIB
AC_CHECK_TOOL(NM, nm, strings)
# Used only for the GNU-stack configure test.
AC_CHECK_TOOL(OBJDUMP, objdump, false)

if test "x$ac_cv_prog_cc_stdc" = xno ; then
  AC_ERROR([the C compiler doesn't handle ANSI-C])
fi

AC_PROG_INSTALL

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

LSH_DEPENDENCY_TRACKING

if test x$enable_dependency_tracking = xyes ; then
  # 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.

  AC_CONFIG_COMMANDS([dummy-dep-files],
  [(cd "$srcdir" && find . -name '*.c' -print) \
 | sed 's/\.c$//' | (while read f; do echo > "$f.o.d"; echo > "$f.po.d"; done)
])
fi

# Select assembler code
asm_path=
case "$host_cpu" in
  [i?86* | k[5-8]* | pentium* | athlon])
    asm_path=x86
    ;;
  *sparc*)
    AC_TRY_COMPILE([
#if defined(__sparcv9) || defined(__arch64__)
#error 64-bit sparc
#endif
    ], [], [
      asm_path=sparc
    ], [
      asm_path=sparc64
    ])
    ;;
  *)
    enable_assembler=no
    ;;
esac

# echo "enable_assembler: $enable_assembler, asm_path: $asm_path"

if test "x$enable_assembler" = xyes ; then
  if test -n "$asm_path"; then
    AC_MSG_NOTICE([Looking for assembler files in $asm_path/.])
    found=no
    for tmp_f in aes-encrypt-internal.asm aes-decrypt-internal.asm \
		 arcfour-crypt.asm md5-compress.asm sha1-compress.asm machine.m4; do
#       echo "Looking for $srcdir/$asm_path/$tmp_f"
      if test -f "$srcdir/$asm_path/$tmp_f"; then
#        echo found
        found=yes
        AC_CONFIG_LINKS($tmp_f:$asm_path/$tmp_f)
      fi
    done
    if test "$found" = no; then
      enable_assembler=no
      AC_MSG_WARN([No assembler files found.])
    fi
  fi
fi

LSH_CCPIC

SHLIBCFLAGS="$CCPIC"

case "$host_os" in
  cygwin*)
    SHLIBFORLINK='cygnettle-$(SHLIBMAJOR)-$(SHLIBMINOR).dll'
    SHLIBSONAME=''
    SHLIBFILE='libnettle.dll.a'
    SHLIBLINK='$(CC) $(LDFLAGS) -shared -Wl,--out-implib=$(SHLIBFILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive'
    SHLIBLIBS='-Wl,--no-whole-archive $(LIBS)'
    ;;
  darwin*)
    SHLIBFORLINK=libnettle.dylib
    SHLIBSONAME='$(SHLIBFORLINK).$(SHLIBMAJOR)'
    SHLIBFILE='$(SHLIBSONAME).$(SHLIBMINOR)'
    SHLIBLINK='$(CC) -dynamiclib $(LDFLAGS)'
    # SHLIBLIBS=' -lgmp'
    ;;
  *)
    SHLIBFORLINK=libnettle.so
    SHLIBSONAME='$(SHLIBFORLINK).$(SHLIBMAJOR)'
    SHLIBFILE='$(SHLIBSONAME).$(SHLIBMINOR)'
    SHLIBLINK='$(CC) $(LDFLAGS) -shared -Wl,-soname=$(SHLIBSONAME)'
    # FIXME: It might make some sense to link with -lgmp
    SHLIBLIBS=''
    ;;
esac

if test "x$enable_shared" = xyes ; then
  SHLIBTARGET='$(SHLIBFORLINK)'
  SHLIBINSTALL=install-shared
else
  SHLIBTARGET=''
  SHLIBINSTALL=''
fi

if test "x$enable_pic" = xyes; then
  CCPIC_MAYBE="$CCPIC"
else
  CCPIC_MAYBE=''
fi
AC_SUBST([CCPIC_MAYBE])

ASM_SYMBOL_PREFIX=''
ASM_ELF_STYLE='no'
ASM_TYPE_FUNCTION=''
ASM_MARK_NOEXEC_STACK=''
ASM_ALIGN_LOG=''

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(
      [int a_global_symbol;],
      [ $NM conftest.$OBJEXT >conftest.out
        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!?])])])
  if test x$nettle_cv_asm_underscore = xyes ; then
    ASM_SYMBOL_PREFIX='_'
  fi

  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,"",@progbits'
  fi

  AC_CACHE_CHECK([for ELF-style .type,%function pseudo-ops],
    [nettle_cv_asm_type_percent_function],
    [GMP_TRY_ASSEMBLE([
.text
.globl foo
.type foo,%function
foo:
.Lend:

.size foo, .Lend - foo
],
       [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$nettle_cv_asm_type_percent_function = xyes ; then
    ASM_ELF_STYLE='yes'
    ASM_TYPE_FUNCTION='%function'
  else
    if test x$nettle_cv_asm_type_hash_function = xyes ; then
      ASM_ELF_STYLE='yes'
      ASM_TYPE_FUNCTION='#function'
    fi
  fi
  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])])
  if test x$nettle_cv_asm_align_log = xyes ; then
    ASM_ALIGN_LOG='yes'
  fi
fi

AC_SUBST(ASM_SYMBOL_PREFIX)
AC_SUBST(ASM_ELF_STYLE)
AC_SUBST(ASM_TYPE_FUNCTION)
AC_SUBST(ASM_MARK_NOEXEC_STACK)
AC_SUBST(ASM_ALIGN_LOG)

AC_SUBST(SHLIBCFLAGS)
AC_SUBST(SHLIBMAJOR)
AC_SUBST(SHLIBMINOR)
AC_SUBST(SHLIBFORLINK)
AC_SUBST(SHLIBSONAME)
AC_SUBST(SHLIBFILE)
AC_SUBST(SHLIBLINK)
AC_SUBST(SHLIBTARGET)
AC_SUBST(SHLIBINSTALL)
AC_SUBST(SHLIBLIBS)

AC_PATH_PROG(M4, m4, m4)

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME

AC_CHECK_HEADERS([openssl/blowfish.h openssl/des.h openssl/cast.h openssl/aes.h],,
[enable_openssl=no
 break])

LSH_FUNC_ALLOCA

# Needed by the supplied memcmp.c
AC_C_BIGENDIAN
AC_REPLACE_FUNCS(memxor)

LSH_GCC_ATTRIBUTES

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

# Checks for libraries
AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
    [AC_MSG_WARN(
[GNU MP not found, or not 3.1 or up, see http://www.swox.com/gmp.
Support for public key algorithms will be unavailable.])]
    enable_public_key=no)

if test "x$enable_public_key" = xyes ; then
  AC_DEFINE(WITH_PUBLIC_KEY)
  RSA_EXAMPLES='rsa-keygen$(EXEEXT) rsa-sign$(EXEEXT) rsa-verify$(EXEEXT) rsa-encrypt$(EXEEXT) rsa-decrypt$(EXEEXT)'
  RSA_TOOLS='pkcs1-conv$(EXEEXT)'
else
  RSA_EXAMPLES=''
  RSA_TOOLS=''
fi

AH_TEMPLATE([WITH_PUBLIC_KEY], [Define to enable public key features])
AC_SUBST(RSA_EXAMPLES)
AC_SUBST(RSA_TOOLS)

# Add -R flags needed to run programs linked with gmp
LSH_RPATH_FIX

OPENSSL_LIBFLAGS=''

# Check for openssl's libcrypto (used only for benchmarking)
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],
	    [Define if you have openssl's libcrypto (used for benchmarking)])

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

AC_SUBST(OPENSSL_LIBFLAGS)

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

# Don't enable -Wcast-align as it results in tons of warnings in the
# DES code. And when using stdio.
# Don't enable -Waggregate-return, as that causes warnings for glibc
# inttypes.h.
fi

AC_CONFIG_FILES([config.make config.m4 Makefile])
AC_CONFIG_FILES([tools/Makefile testsuite/Makefile examples/Makefile])

AC_OUTPUT