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arangodb/m4/external.openssl

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dnl -*- mode: Autoconf; -*-
dnl -----------------------------------------------------------------------------------------
dnl option for SSL support
dnl -----------------------------------------------------------------------------------------
AC_ARG_WITH(openssl-inc,
AS_HELP_STRING([--with-openssl-inc=DIR], [where the OpenSSL header files are located]),
OPENSSL_CPPFLAGS="-I$withval"
)
AC_ARG_WITH(openssl-lib,
AS_HELP_STRING([--with-openssl-lib=DIR], [where the OpenSSL library files are located]),
OPENSSL_LDFLAGS="-L$withval"
)
dnl -----------------------------------------------------------------------------------------
dnl check for OpenSSL
dnl -----------------------------------------------------------------------------------------
AC_MSG_NOTICE([--------------------------------------------------------------------------------])
AC_MSG_NOTICE([CHECKING FOR OPENSSL])
AC_MSG_NOTICE([--------------------------------------------------------------------------------])
AC_LANG(C)
dnl -----------------------------------------------------------------------------------------
dnl save flags
dnl -----------------------------------------------------------------------------------------
SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $OPENSSL_CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
SAVE_LIBS="$LIBS"
dnl -----------------------------------------------------------------------------------------
dnl check for header and library
dnl -----------------------------------------------------------------------------------------
AC_CHECK_HEADERS([openssl/ssl.h])
AC_CHECK_LIB([crypto], [CRYPTO_get_ex_data],
OPENSSL_LIBS="-lcrypto $OPENSSL_LIBS",
AC_MSG_ERROR([please install the OpenSSL library]),
[-lz $LIBS])
AC_CHECK_LIB([ssl], [SSL_get_error],
OPENSSL_LIBS="-lssl $OPENSSL_LIBS",
AC_CHECK_LIB([ssl], [SSL_get_error],
OPENSSL_LIBS="-lssl -ldl $OPENSSL_LIBS",
AC_MSG_ERROR([Please install the OpenSSL library]),
[-lcrypto -lz -ldl $LIBS])
[-lcrypto -lz $LIBS])
dnl check if SSLv23_method returns a const method
AC_MSG_CHECKING([return type of SSLv23_method])
LIBS="-lcrypto -lssl -lz -ldl $LIBS"
AC_TRY_COMPILE([#include <openssl/ssl.h>],
[SSL_METHOD* meth = SSLv23_method();],
tr_OPENSSL_NEEDS_CONST=no,
tr_OPENSSL_NEEDS_CONST=yes)
if test "x$tr_OPENSSL_NEEDS_CONST" = "xyes"; then
AC_MSG_RESULT([SSL_METHOD const*])
AC_DEFINE_UNQUOTED(OPENSSL_NEEDS_CONST, 1, [true if SSLv23_method return SSL_METHOD const*])
else
AC_MSG_RESULT([SSL_METHOD*])
fi
dnl -----------------------------------------------------------------------------------------
dnl fix include and static libraries
dnl -----------------------------------------------------------------------------------------
TR_INCLUDE([OPENSSL_CPPFLAGS])
dnl -----------------------------------------------------------------------------------------
dnl add substitutions
dnl -----------------------------------------------------------------------------------------
AC_SUBST(OPENSSL_CPPFLAGS)
AC_SUBST(OPENSSL_LDFLAGS)
AC_SUBST(OPENSSL_LIBS)
dnl -----------------------------------------------------------------------------------------
dnl grep openssl version number
dnl -----------------------------------------------------------------------------------------
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <openssl/ssl.h>
main () {
long sdnhg36ed = OPENSSL_VERSION_TEXT
;
}
_ACEOF
AC_MSG_CHECKING([OPENSSL version])
eval "$ac_cpp conftest.$ac_ext" | fgrep "long sdnhg36ed" | awk '{print $4 " " $5 " " $6 " " $7 " " $8 " " $9}' > conftest.output
TRI_OPENSSL_VERSION=`head -1 conftest.output | sed -e 's: *$::'`
AC_MSG_RESULT([$TRI_OPENSSL_VERSION])
rm -f conftest*
dnl -----------------------------------------------------------------------------------------
dnl verify version number
dnl -----------------------------------------------------------------------------------------
OPENSSL_WARNING=""
AC_TRY_COMPILE(
[#include <openssl/opensslv.h>
],
[#if OPENSSL_VERSION_NUMBER < 0x1000107fL
#error OpenSSL version is too old ...
#endif],
[ ],
[OPENSSL_WARNING=" WARNING: OpenSSL version should be 1.0.1g or higher"
AC_MSG_WARN([OpenSSL version should be 1.0.1g or higher.])
])
dnl -----------------------------------------------------------------------------------------
dnl restore flags
dnl -----------------------------------------------------------------------------------------
LDFLAGS="$SAVE_LDFLAGS"
CPPFLAGS="$SAVE_CPPFLAGS"
LIBS="$SAVE_LIBS"
OPENSSL_CPPFLAGS="${OPENSSL_CPPFLAGS} -DTRI_OPENSSL_VERSION='${TRI_OPENSSL_VERSION}'"
dnl -----------------------------------------------------------------------------------------
dnl informational output
dnl -----------------------------------------------------------------------------------------
LIB_INFO="$LIB_INFO|OPENSSL VERSION: ${TRI_OPENSSL_VERSION}${OPENSSL_WARNING}"
LIB_INFO="$LIB_INFO|OPENSSL_CPPFLAGS: ${OPENSSL_CPPFLAGS}"
LIB_INFO="$LIB_INFO|OPENSSL_LDFLAGS: ${OPENSSL_LDFLAGS}"
LIB_INFO="$LIB_INFO|OPENSSL_LIBS: ${OPENSSL_LIBS}"
LIB_INFO="$LIB_INFO|."
dnl Local Variables:
dnl mode: outline-minor
dnl outline-regexp: "^\\(dnl --SECTION--\\)"
dnl End: