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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.50)
AC_INIT

AC_PREFIX_DEFAULT(/usr/local)

AC_CANONICAL_TARGET([])
AC_DEFINE_UNQUOTED(T_CPU, "$target_cpu", [CPU name])
AC_DEFINE_UNQUOTED(T_VENDOR, "$target_vendor", [Vendor name])
AC_DEFINE_UNQUOTED(T_OS, "$target_os", [OS name])

dnl Gnutls Version
GNUTLS_MAJOR_VERSION=0
GNUTLS_MINOR_VERSION=9
GNUTLS_MICRO_VERSION=3
GNUTLS_VERSION=$GNUTLS_MAJOR_VERSION.$GNUTLS_MINOR_VERSION.$GNUTLS_MICRO_VERSION

AC_DEFINE_UNQUOTED(GNUTLS_VERSION, "$GNUTLS_VERSION", [version of gnutls])

AM_INIT_AUTOMAKE(gnutls, $GNUTLS_VERSION, [version of gnutls])
AM_CONFIG_HEADER(config.h)

AM_MAINTAINER_MODE

dnl This is the library version
GNUTLS_MOST_RECENT_INTERFACE=6
GNUTLS_CURRENT_INTERFACE_IMPLEMENTATION_NUMBER=$GNUTLS_MICRO_VERSION
GNUTLS_OLDEST_INTERFACE=6


AC_SUBST(GNUTLS_MAJOR_VERSION)
AC_SUBST(GNUTLS_MINOR_VERSION)
AC_SUBST(GNUTLS_MICRO_VERSION)
AC_SUBST(GNUTLS_VERSION)

AC_SUBST(GNUTLS_MOST_RECENT_INTERFACE)
AC_SUBST(GNUTLS_CURRENT_INTERFACE_IMPLEMENTATION_NUMBER)
AC_SUBST(GNUTLS_OLDEST_INTERFACE)

LT_CURRENT=$GNUTLS_MOST_RECENT_INTERFACE
LT_REVISION=$GNUTLS_CURRENT_INTERFACE_IMPLEMENTATION_NUMBER
LT_AGE=`expr $GNUTLS_MOST_RECENT_INTERFACE - $GNUTLS_OLDEST_INTERFACE`
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

opt_dmalloc_mode=no
AC_MSG_CHECKING([whether in dmalloc mode])
AC_ARG_ENABLE(dmalloc-mode,
[  --enable-dmalloc-mode      enable dmalloc mode],
opt_dmalloc_mode=$enableval)
AC_MSG_RESULT($opt_dmalloc_mode)

opt_efence_mode=no
AC_MSG_CHECKING([whether in electric fence mode])
AC_ARG_ENABLE(efence-mode,
[  --enable-efence-mode       enable electric fence mode],
opt_efence_mode=$enableval)
AC_MSG_RESULT($opt_efence_mode)

opt_developer_mode=no
AC_MSG_CHECKING([whether in maintanance mode])
AC_ARG_ENABLE(developer-mode,
[  --enable-developer-mode   enable developer mode],
opt_developer_mode=$enableval)
AC_MSG_RESULT($opt_developer_mode)

opt_profiler_mode=no
AC_MSG_CHECKING([whether in profile mode])
AC_ARG_ENABLE(profile-mode,
[  --enable-profile-mode      enable profiler],
opt_profiler_mode=$enableval)
AC_MSG_RESULT($opt_profiler_mode)

AC_MSG_RESULT([***
*** Checking for compilation programs...
])

SAVED_CFLAGS="${CFLAGS}"

AC_PROG_CC

CFLAGS="${SAVED_CFLAGS}"

AC_PROG_LN_S


dnl Checks for programs.
AC_PROG_INSTALL

dnl AC_PROG_MAKE_SET


AC_MSG_RESULT([***
*** Detecting compiler options...
])


AC_C_CONST
AC_C_INLINE

AC_MSG_CHECKING([whether C99 macros are supported])
AC_TRY_COMPILE(,[ 
#define test_mac(...) 
int z,y,x;
test_mac(x,y,z);
return 0;
], 
dnl ***** OK
AC_DEFINE(C99_MACROS, 1, [C99 macros are supported])
AC_MSG_RESULT(yes),
dnl ***** NOT FOUND
AC_MSG_RESULT(no)
AC_MSG_WARN([C99 macros are not supported by your compiler. This may
affect compiling.])
)

if test $ac_cv_c_compiler_gnu != no; then

	if test x$opt_developer_mode = xyes; then
	  CFLAGS="${CFLAGS} -g -Wall -Wcast-align -W -Wpointer-arith -Wchar-subscripts -Wformat-security -Wmissing-braces -Wsign-compare -Winline -Wstrict-prototypes"
	else
	  CFLAGS="${CFLAGS} -O2 -finline-functions"
	fi

	if test x$opt_dmalloc_mode = xyes; then
	  AC_CHECK_LIB( dmalloc, main)
	  AC_DEFINE(USE_DMALLOC, 1, [enable the use of dmalloc])
	else
		if test x$opt_efence_mode = xyes; then
		  AC_CHECK_LIB( efence, main)
		  AC_DEFINE(USE_EFENCE, 1, [use electric fence])
		fi
	fi


	AC_MSG_CHECKING([whether we have GNU assembler])

	GAS=`as --version < /dev/null 2>/dev/null | grep GNU`
	if test "$GAS"; then
	  CFLAGS="${CFLAGS} -pipe"
	  AC_MSG_RESULT(yes)
	else
	  AC_MSG_RESULT(no)
	fi
fi


AC_MSG_RESULT([***
*** Detecting C library capabilities...
])

AC_HEADER_STDC
AC_HEADER_TIME
AC_CHECK_HEADERS(unistd.h pwd.h strings.h stdarg.h)
AC_CHECK_HEADERS(sys/stat.h sys/types.h sys/socket.h)
AC_CHECK_HEADERS(errno.h sys/time.h time.h)
AC_CHECK_FUNCS(bzero memset memmove bcopy strnstr memcmp memcpy mmap,,)
AC_FUNC_ALLOCA


AC_MSG_RESULT([***
*** Detecting system's parameters...
])

AC_CHECK_SIZEOF(unsigned long, 4)
AC_CHECK_SIZEOF(unsigned int, 4)
AC_CHECK_SIZEOF(unsigned short, 2)
AC_CHECK_SIZEOF(unsigned char, 1)
AC_CHECK_SIZEOF(unsigned char*, 4)

AC_CHECK_TYPES(ptrdiff_t,,, [
# include <sys/types.h>
])

AC_CHECK_TYPES(uint,,, [
# include <sys/types.h>
])

AC_CHECK_TYPE(size_t,
DEFINE_SIZE_T="#include <sys/types.h>"
AC_SUBST( DEFINE_SIZE_T)
,
AC_DEFINE(NO_SIZE_T, 1, [no size_t type was found])
DEFINE_SIZE_T="typedef unsigned int size_t; typedef int ssize_t;"
AC_SUBST( DEFINE_SIZE_T)
,[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
])

AC_CHECK_TYPE(time_t,
 DEFINE_TIME_T="#include <time.h>"
 AC_SUBST( DEFINE_TIME_T)
 ,
  AC_CHECK_TYPE(time_t,
   DEFINE_TIME_T="#include <sys/time.h>"
   AC_SUBST( DEFINE_TIME_T)
   ,
    DEFINE_TIME_T="typedef unsigned int time_t;"
    AC_SUBST( DEFINE_TIME_T)
    AC_DEFINE(NO_TIME_T, 1, [no time_t type was found]),
  [
   #include <sys/time.h>
  ]
  )
,
[
 #include <time.h>
]
)

AC_C_BIGENDIAN


AC_MSG_RESULT([***
*** Checking for external libraries...
])

AM_PATH_LIBGCRYPT(1.1.12,,
 	AC_MSG_ERROR([[
***  
*** libgcrypt was not found. You may want to get it from
*** ftp://ftp.gnupg.org/pub/gcrypt/alpha/libgcrypt/
***
]]))
dnl Can't disable - gnutls depends on gcrypt
AC_DEFINE(USE_GCRYPT, 1, [use gcrypt])



AC_MSG_CHECKING([whether to disable SRP authentication support])
AC_ARG_ENABLE( srp-authentication, [  --disable-srp-authentication     disable the SRP authentication support],
 ac_enable_srp=no
)
if test x$ac_enable_srp != xno; then
 AC_MSG_RESULT(no)
 AC_DEFINE(ENABLE_SRP, 1, [enable SRP authentication])
else
 AC_MSG_RESULT(yes)
fi

AC_MSG_CHECKING([whether to disable anonymous authentication support])
AC_ARG_ENABLE( anon-authentication, [  --disable-anon-authentication    disable the anonymous authentication support],
 ac_enable_anon=no
)
if test x$ac_enable_anon != xno; then
 AC_MSG_RESULT(no)
 AC_DEFINE(ENABLE_ANON, 1, [enable anonymous authentication])
else
 AC_MSG_RESULT(yes)
fi


AC_MSG_CHECKING([whether to disable OpenPGP Certificate authentication support])
AC_ARG_ENABLE( openpgp-authentication, [  --disable-openpgp-authentication disable the OpenPGP authentication support],
 ac_enable_openpgp=no
)
if test x$ac_enable_openpgp != xno; then
 AC_MSG_RESULT(no)
 AM_PATH_LIBOPENCDK( 0.4.0, AC_DEFINE(HAVE_LIBOPENCDK, 1, [have libopencdk]),
 AC_MSG_WARN([[
***
*** libopencdk 0.4.0 was not found. You will not be able to use OpenPGP keys with gnutls.
]]))
else
 AC_MSG_RESULT(yes)
fi

AC_ARG_WITH(included-libtasn1,
	[  --with-included-libtasn1 Use the included libtasn1],
minitasn1_enabled=$withval, 
minitasn1_enabled=no

dnl We now need libtasn1 0.2.x
dnl
AC_CHECK_LIB( tasn1, asn1_read_tag,:, 
 minitasn1_enabled=yes
AC_MSG_WARN([[
*** 
*** LibtASN1 0.2.x was not found. Will use the included one.]])))


if test x$opt_developer_mode = xyes; then
 minitasn1_enabled=yes
fi

AC_MSG_CHECKING([whether to use the included minitasn1])
AC_MSG_RESULT($minitasn1_enabled)


dnl CHECK FOR ZLIB SUPPORT
dnl

AC_MSG_CHECKING([whether to include zlib compression support])

AC_ARG_WITH( zlib, [  --without-zlib          disable zlib compression support],
 ac_zlib=$withval,
 ac_zlib=yes
)

if test x$ac_zlib != xno; then
 AC_MSG_RESULT(yes)
 AC_CHECK_LIB(z, compress,,AC_MSG_WARN(
*** 
*** ZLIB was not found. You will not be able to use ZLIB compression.))
else
 AC_MSG_RESULT(no)
fi


dnl CHECK FOR LZO SUPPORT (whether to use the included one)
dnl

if test x$opt_developer_mode = xyes; then
 minilzo_enabled=yes
fi

AC_ARG_WITH(included-lzo,
	[  --with-included-lzo     include minilzo in libgnutls-extra],
 minilzo_enabled=$withval,
 minilzo_enabled=no
)

AC_MSG_CHECKING([whether to use the included lzo compression library])

AC_MSG_RESULT($minilzo_enabled)

if test x$minilzo_enabled = xno; then
AC_CHECK_LIB( lzo, lzo1x_1_compress, minilzo_enabled=no, 
 minilzo_enabled=yes
 AC_MSG_WARN(
*** 
*** Liblzo was not found. Will use the included minilzo.))
fi

if test x"$minilzo_enabled" = xyes; then
 AC_DEFINE(USE_MINILZO, 1, [whether to use the included minilzo])
 LZO_OBJECTS="minilzo.lo"
else
 LZO_LINK=-llzo
fi

AC_SUBST(LZO_OBJECTS)
AC_SUBST(LZO_LINK)

dnl CHECK FOR THE LIBTASN1 LIBRARY or use the included one
dnl

if test x"$minitasn1_enabled" = xyes; then
 MINITASN1_OBJECTS="minitasn1/coding.lo minitasn1/decoding.lo minitasn1/element.lo \
	minitasn1/errors.lo minitasn1/gstr.lo minitasn1/parser_aux.lo minitasn1/structure.lo"
 MINITASN1_DIR=minitasn1
else
 LIBASN1_LINK=-ltasn1
fi

AC_SUBST(MINITASN1_OBJECTS)
AC_SUBST(MINITASN1_DIR)
AC_SUBST(LIBASN1_LINK)



AC_MSG_RESULT([***
*** Detecting options for shared libraries...
])
AM_PROG_LIBTOOL


LIBGNUTLS_LIBS="$LIBS -L${libdir} -lgnutls $LIBASN1_LINK $LIBGCRYPT_LIBS"
LIBGNUTLS_CFLAGS="$LIBGCRYPT_CFLAGS -I${includedir}"

CFLAGS="${CFLAGS} ${LIBGCRYPT_CFLAGS}"

AC_SUBST(LIBGNUTLS_LIBS)
AC_SUBST(LIBGNUTLS_CFLAGS)

SERV_LIBS="$LIBS $SERV_LIBS"
AC_SUBST(SERV_LIBS)

LIBGNUTLS_EXTRA_LIBS="-L${libdir} -lgnutls-extra -lgnutls $LIBOPENCDK_LIBS $LZO_LINK"
LIBGNUTLS_EXTRA_CFLAGS="$LIBOPENCDK_CFLAGS -I${includedir}"

AC_SUBST(LIBGNUTLS_EXTRA_LIBS)
AC_SUBST(LIBGNUTLS_EXTRA_CFLAGS)

if test $ac_cv_c_compiler_gnu != no; then

	if test x$opt_profiler_mode = xyes; then
	  AC_CHECK_PROG(FC_OK, fc-config, yes, no)
	  if test x$FC_OK = xyes; then
   	        CFLAGS="${CFLAGS} `fc-config --cflags`"
		LIBS="$LIBS `fc-config --libs`"
	  else
AC_MSG_WARN(***
*** You must install libfc in order to enable profiling. http://www710.univ-lyon1.fr/~yperret/fnccheck/profiler.html
)
	  fi
	fi
fi


AC_CONFIG_FILES(lib/gnutls.h.in)

AC_CONFIG_COMMANDS([includes/gnutls/gnutls.h],[[
 test -f lib/gnutls.h.in || (echo "Could not generate includes/gnutls/gnutls.h" && exit 1)
 cat lib/gnutls.h.in > includes/gnutls/gnutls.h
 cat lib/gnutls_ui.h >> includes/gnutls/gnutls.h
 echo "" >> includes/gnutls/gnutls.h
 cat lib/gnutls_errors_int.h | grep -v _INT_ >> includes/gnutls/gnutls.h
 echo "" >> includes/gnutls/gnutls.h
 echo "#ifdef __cplusplus" >> includes/gnutls/gnutls.h
 echo "}" >> includes/gnutls/gnutls.h
 echo "#endif" >> includes/gnutls/gnutls.h
 echo "#endif /* GNUTLS_H */" >> includes/gnutls/gnutls.h
 echo "" >> includes/gnutls/gnutls.h
 chmod +x lib/libgnutls-config
 chmod +x libextra/libgnutls-extra-config
]],[[]])

AC_CONFIG_FILES([Makefile src/Makefile libextra/Makefile lib/Makefile \
lib/libgnutls-config libextra/libgnutls-extra-config \
doc/Makefile src/x509/Makefile src/srp/Makefile src/openpgp/Makefile \
doc/tex/Makefile doc/tex/cover.tex doc/scripts/Makefile \
doc/examples/Makefile lib/minitasn1/Makefile lib/x509/Makefile \
includes/Makefile includes/gnutls/Makefile])

AC_OUTPUT