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path: root/build-aux/m4/bitcoin_find_bdb48.m4
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AC_DEFUN([BITCOIN_FIND_BDB48],[
  AC_MSG_CHECKING([for Berkeley DB C++ headers])
  BDB_CPPFLAGS=
  BDB_LIBS=
  bdbpath=X
  bdb48path=X
  bdbdirlist=
  for _vn in 4.8 48 4 5 ''; do
    for _pfx in b lib ''; do
      bdbdirlist="$bdbdirlist ${_pfx}db${_vn}"
    done
  done
  for searchpath in $bdbdirlist ''; do
    test -n "${searchpath}" && searchpath="${searchpath}/"
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
      #include <${searchpath}db_cxx.h>
    ]],[[
      #if !((DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 8) || DB_VERSION_MAJOR > 4)
        #error "failed to find bdb 4.8+"
      #endif
    ]])],[
      if test "x$bdbpath" = "xX"; then
        bdbpath="${searchpath}"
      fi
    ],[
      continue
    ])
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
      #include <${searchpath}db_cxx.h>
    ]],[[
      #if !(DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR == 8)
        #error "failed to find bdb 4.8"
      #endif
    ]])],[
      bdb48path="${searchpath}"
      break
    ],[])
  done
  if test "x$bdbpath" = "xX"; then
    AC_MSG_RESULT([no])
    AC_MSG_ERROR([libdb_cxx headers missing, ]AC_PACKAGE_NAME[ requires this library for wallet functionality (--disable-wallet to disable wallet functionality)])
  elif test "x$bdb48path" = "xX"; then
    BITCOIN_SUBDIR_TO_INCLUDE(BDB_CPPFLAGS,[${bdbpath}],db_cxx)
    AC_ARG_WITH([incompatible-bdb],[AS_HELP_STRING([--with-incompatible-bdb], [allow using a bdb version other than 4.8])],[
      AC_MSG_WARN([Found Berkeley DB other than 4.8; wallets opened by this build will not be portable!])
    ],[
      AC_MSG_ERROR([Found Berkeley DB other than 4.8, required for portable wallets (--with-incompatible-bdb to ignore or --disable-wallet to disable wallet functionality)])
    ])
  else
    BITCOIN_SUBDIR_TO_INCLUDE(BDB_CPPFLAGS,[${bdb48path}],db_cxx)
    bdbpath="${bdb48path}"
  fi
  AC_SUBST(BDB_CPPFLAGS)
  
  # TODO: Ideally this could find the library version and make sure it matches the headers being used
  for searchlib in db_cxx-4.8 db_cxx; do
    AC_CHECK_LIB([$searchlib],[main],[
      BDB_LIBS="-l${searchlib}"
      break
    ])
  done
  if test "x$BDB_LIBS" = "x"; then
      AC_MSG_ERROR([libdb_cxx missing, ]AC_PACKAGE_NAME[ requires this library for wallet functionality (--disable-wallet to disable wallet functionality)])
  fi
  AC_SUBST(BDB_LIBS)
])