#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.57)
AC_INIT(libssh, 0.2-dev , aris@0xbadc0de.be)
AC_CONFIG_SRCDIR([sample.c])
AC_CONFIG_HEADER([config.h])

# LT Version numbers, remember to change them just *before* a release.
#   (Interfaces removed:    CURRENT++, AGE=0, REVISION=0)
#   (Interfaces added:      CURRENT++, AGE++, REVISION=0)
#   (No interfaces changed:                   REVISION++)
LIBSSH_CURRENT=0
LIBSSH_AGE=0
LIBSSH_REVISION=0
AC_SUBST(LIBSSH_CURRENT)
AC_SUBST(LIBSSH_AGE)
AC_SUBST(LIBSSH_REVISION)

# Check for the OS.
AC_CANONICAL_HOST
case "$host" in
	*-apple*)
	LIBSSH_LDFLAGS="-prebind -seg1addr 0x3a000000 -headerpad_max_install_names"
	;;
	*)
	LIBSSH_LDFLAGS=""
	;;
esac
AC_SUBST(LIBSSH_LDFLAGS)

AC_MSG_CHECKING([version script options])
case "$host" in
	*-*-linux*)
	LIBSSH_VERS="$LIBSSH_LDFLAGS -Wl,--version-script,libssh.vers"
	;;
	*-*-gnu*)
	LIBSSH_VERS="$LIBSSH_LDFLAGS -Wl,--version-script,libssh.vers"
	;;
esac
AC_ARG_WITH([versioned-symbol],
	AC_HELP_STRING([--with-versioned-symbol],[Use versioned symbols]),
	[echo $withval > plop
	if test $withval = "yes"; then
	   LIBSSH_VERS="$LIBSSH_LDFLAGS -Wl,--version-script,libssh.vers"
	 else
	   LIBSSH_VERS=""
	 fi], [ : ])

AC_SUBST(LIBSSH_VERS)

enable_ssh1=${enable_ssh1:-"no"}
AC_ARG_ENABLE(ssh1, [  --enable-ssh1           support SSH1])
AC_MSG_CHECKING([for SSH1 support])
if test $enable_ssh1 = "yes" ; then
  AC_DEFINE(HAVE_SSH1,1,[Define to 1 if you want to enable SSH1])
fi
AC_MSG_RESULT([$enable_ssh1])

# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_C_BIGENDIAN

# Checks for libraries.
#AC_CHECK_LIB([gcrypt], [gcry_md_open])
AC_ARG_WITH([libgcrypt],
    AC_HELP_STRING([--with-libgcrypt],[Use libgcrypt instead of libcrypto]),
    [AC_CHECK_LIB([gcrypt], [gcry_md_open])])

if test "$ac_cv_lib_gcrypt_gcry_md_open" != yes; then
  AC_CHECK_LIB([crypto], [BN_init])
fi

AC_CHECK_LIB([z], [deflateInit_])
AC_SEARCH_LIBS([hstrerror],[nsl resolv])
AC_SEARCH_LIBS([getaddrinfo],[nsl resolv])
AC_SEARCH_LIBS([gethostbyname],[nsl resolv])

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h \
sys/time.h termios.h unistd.h openssl/aes.h openssl/blowfish.h \
openssl/des.h zlib.h sys/poll.h stdint.h pty.h pam/pam_appl.h \
security/pam_appl.h gcrypt.h])

#Warn user when no openssl available
#FIXME ! how to make it work with gcrypt ?
#I can't make it work. help would be appreciated
#if test x"$ac_cv_header_openssl_aes_h" != x"yes" ||
#x"$ac_cv_header_openssl_blowfish_h" != x"yes"; then
#        echo "Can't find valid openssl files [e.g openssl/aes.h]"
#        echo "Please install Openssl-devel"
#        exit
#fi

#if ! test x"$ac_cv_header_zlib_h" != x"yes"; then
#        echo "Can't find zlib.h"
#        echo "Compression support won't be compiled in"
#fi

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

# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_MEMCMP
AC_FUNC_REALLOC
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([endpwent getaddrinfo gethostbyname getpass memmove memset \
cfmakeraw select socket strchr strdup strerror strstr poll])

AC_CONFIG_FILES([Makefile
                 libssh/Makefile
                 sftp_server/Makefile])
AC_OUTPUT