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arangodb/m4/configure.openssl

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dnl -*- mode: Autoconf; -*-
dnl -----------------------------------------------------------------------------------------
dnl option for SSL support
dnl -----------------------------------------------------------------------------------------
AC_ARG_ENABLE(ssl,
AC_HELP_STRING([--enable-ssl], [enable ssl support (default: yes)]),
if test "$enableval" = "yes"; then
tr_OPENSSL="yes";
else
tr_OPENSSL="no";
fi,
tr_OPENSSL="yes"
)
AC_ARG_WITH(openssl-inc,
AS_HELP_STRING([--with-openssl-inc=DIR], [where the OpenSSL header files are located]),
OPENSSL_CPPFLAGS="-I$withval"
)
AC_ARG_WITH(openssl-lib,
AS_HELP_STRING([--with-openssl-lib=DIR], [where the OpenSSL library files are located]),
OPENSSL_LDFLAGS="-L$withval"
)
TR_STATIC_ENABLE([ssl])
dnl -----------------------------------------------------------------------------------------
dnl save flags
dnl -----------------------------------------------------------------------------------------
SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $OPENSSL_CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
SAVE_LIBS="$LIBS"
dnl -----------------------------------------------------------------------------------------
dnl check for OpenSSL
dnl -----------------------------------------------------------------------------------------
if test "$tr_OPENSSL" = "yes"; then
AC_CHECK_HEADERS([openssl/ssl.h])
AC_CHECK_LIB([crypto], [CRYPTO_get_ex_data],
OPENSSL_LIBS="-lcrypto $OPENSSL_LIBS",
AC_MSG_ERROR([please install the OpenSSL library]))
LIBS="$LIBS $OPENSSL_LIBS"
AC_CHECK_LIB([ssl], [SSL_get_error],
OPENSSL_LIBS="-lssl $OPENSSL_LIBS",
AC_MSG_ERROR([Please install the OpenSSL library]))
# LIBS contains -ldl, so it must come after OPENSSL_LIBS
LIBS="$OPENSSL_LIBS $LIBS"
dnl check if SSLv23_method returns a const method
AC_MSG_CHECKING([return type of SSLv23_method])
AC_TRY_COMPILE([#include <openssl/ssl.h>],
[SSL_METHOD* meth = SSLv23_method();],
tr_OPENSSL_NEEDS_CONST=no,
tr_OPENSSL_NEEDS_CONST=yes)
if test "x$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 check if openssl was compiled using zlib
if test "x$tr_STATIC_PROGRAMS" = xyes; then
LDFLAGS="$LDFLAGS $lt_prog_compiler_static"
AC_MSG_CHECKING([if OpenSSL requires static zlib])
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[
#include <openssl/ssl.h>
]],
[[
SSL_library_init();
]])],
[tr_OPENSSL_NEEDS_ZLIB=no],
[tr_OPENSSL_NEEDS_ZLIB=yes])
AC_MSG_RESULT($tr_OPENSSL_NEEDS_ZLIB)
if test "x$tr_OPENSSL_NEEDS_ZLIB" = "xyes"; then
AC_CHECK_LIB([z], [zError],
OPENSSL_LIBS="$OPENSSL_LIBS -lz",
AC_MSG_ERROR([please install the static zlib library]))
fi
fi
fi
if test "x$tr_OPENSSL" = xyes; then
TR_ABSOLUTE_LIBRARIES([ssl], [OPENSSL_LIBS])
if test "x$tr_libraries_found" != xyes; then
AC_MSG_ERROR([Please install the OpenSSL library])
fi
fi
dnl -----------------------------------------------------------------------------------------
dnl fix include and static libraries
dnl -----------------------------------------------------------------------------------------
TR_INCLUDE([OPENSSL_CPPFLAGS])
TR_STATIC_LIBRARY([ssl], [OPENSSL_LIBS])
dnl -----------------------------------------------------------------------------------------
dnl add substitutions
dnl -----------------------------------------------------------------------------------------
AM_CONDITIONAL(ENABLE_OPENSSL, test "x$tr_OPENSSL" = "xyes")
AC_SUBST(OPENSSL_CPPFLAGS)
AC_SUBST(OPENSSL_LDFLAGS)
AC_SUBST(OPENSSL_LIBS)
dnl -----------------------------------------------------------------------------------------
dnl restore flags
dnl -----------------------------------------------------------------------------------------
LDFLAGS="$SAVE_LDFLAGS"
CPPFLAGS="$SAVE_CPPFLAGS"
LIBS="$SAVE_LIBS"
dnl -----------------------------------------------------------------------------------------
dnl informational output
dnl -----------------------------------------------------------------------------------------
if test "x$tr_OPENSSL" = xyes; then
FLAG_INFO="$FLAG_INFO|OPENSSL_CPPFLAGS: ${OPENSSL_CPPFLAGS}"
FLAG_INFO="$FLAG_INFO|OPENSSL_LDFLAGS: ${OPENSSL_LDFLAGS}"
FLAG_INFO="$FLAG_INFO|OPENSSL_LIBS: ${OPENSSL_LIBS}"
fi