1dnl Copyright (c) 2013-2015 The Bitcoin Core developers
2dnl Distributed under the MIT software license, see the accompanying
3dnl file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5AC_DEFUN([BITCOIN_FIND_BDB48],[
6  AC_ARG_VAR(BDB_CFLAGS, [C compiler flags for BerkeleyDB, bypasses autodetection])
7  AC_ARG_VAR(BDB_LIBS, [Linker flags for BerkeleyDB, bypasses autodetection])
8
9  if test "x$BDB_CFLAGS" = "x"; then
10    AC_MSG_CHECKING([for Berkeley DB C++ headers])
11    BDB_CPPFLAGS=
12    bdbpath=X
13    bdb48path=X
14    bdbdirlist=
15    for _vn in 4.8 48 4 5 5.3 ''; do
16      for _pfx in b lib ''; do
17        bdbdirlist="$bdbdirlist ${_pfx}db${_vn}"
18      done
19    done
20    for searchpath in $bdbdirlist ''; do
21      test -n "${searchpath}" && searchpath="${searchpath}/"
22      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
23        #include <${searchpath}db_cxx.h>
24      ]],[[
25        #if !((DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 8) || DB_VERSION_MAJOR > 4)
26          #error "failed to find bdb 4.8+"
27        #endif
28      ]])],[
29        if test "x$bdbpath" = "xX"; then
30          bdbpath="${searchpath}"
31        fi
32      ],[
33        continue
34      ])
35      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
36        #include <${searchpath}db_cxx.h>
37      ]],[[
38        #if !(DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR == 8)
39          #error "failed to find bdb 4.8"
40        #endif
41      ]])],[
42        bdb48path="${searchpath}"
43        break
44      ],[])
45    done
46    if test "x$bdbpath" = "xX"; then
47      AC_MSG_RESULT([no])
48      AC_MSG_ERROR([libdb_cxx headers missing, ]AC_PACKAGE_NAME[ requires this library for wallet functionality (--disable-wallet to disable wallet functionality)])
49    elif test "x$bdb48path" = "xX"; then
50      BITCOIN_SUBDIR_TO_INCLUDE(BDB_CPPFLAGS,[${bdbpath}],db_cxx)
51      AC_ARG_WITH([incompatible-bdb],[AS_HELP_STRING([--with-incompatible-bdb], [allow using a bdb version other than 4.8])],[
52        AC_MSG_WARN([Found Berkeley DB other than 4.8; wallets opened by this build will not be portable!])
53      ],[
54        AC_MSG_ERROR([Found Berkeley DB other than 4.8, required for portable wallets (--with-incompatible-bdb to ignore or --disable-wallet to disable wallet functionality)])
55      ])
56    else
57      BITCOIN_SUBDIR_TO_INCLUDE(BDB_CPPFLAGS,[${bdb48path}],db_cxx)
58      bdbpath="${bdb48path}"
59    fi
60  else
61    BDB_CPPFLAGS=${BDB_CFLAGS}
62  fi
63  AC_SUBST(BDB_CPPFLAGS)
64
65  if test "x$BDB_LIBS" = "x"; then
66    # TODO: Ideally this could find the library version and make sure it matches the headers being used
67    for searchlib in db_cxx-4.8 db_cxx db4_cxx; do
68      AC_CHECK_LIB([$searchlib],[main],[
69        BDB_LIBS="-l${searchlib}"
70        break
71      ])
72    done
73    if test "x$BDB_LIBS" = "x"; then
74        AC_MSG_ERROR([libdb_cxx missing, ]AC_PACKAGE_NAME[ requires this library for wallet functionality (--disable-wallet to disable wallet functionality)])
75    fi
76  fi
77  AC_SUBST(BDB_LIBS)
78])
79