ax_lib_sqlite3

Test for the SQLite 3 library of a particular version (or newer)

This macro takes only one optional argument, required version of SQLite 3 library. If required version is not passed, 3.0.0 is used in the test of existance of SQLite 3.

If no intallation prefix to the installed SQLite library is given the macro searches under /usr, /usr/local, and /opt.

This macro calls:

  AC_SUBST(SQLITE3_CFLAGS)
  AC_SUBST(SQLITE3_LDFLAGS)
  AC_SUBST(SQLITE3_VERSION)

And sets:

  HAVE_SQLITE3

AC_DEFUN([AX_LIB_SQLITE3],
[
    AC_ARG_WITH([sqlite3],
        AC_HELP_STRING(
            [--with-sqlite3=@<:@ARG@:>@],
            [use SQLite 3 library @<:@default=yes@:>@, optionally specify the prefix for sqlite3 library]
        ),
        [
        if test "$withval" = "no"; then
            WANT_SQLITE3="no"
        elif test "$withval" = "yes"; then
            WANT_SQLITE3="yes"
            ac_sqlite3_path=""
        else
            WANT_SQLITE3="yes"
            ac_sqlite3_path="$withval"
        fi
        ],
        [WANT_SQLITE3="yes"]
    )

    SQLITE3_CFLAGS=""
    SQLITE3_LDFLAGS=""
    SQLITE3_VERSION=""

    if test "x$WANT_SQLITE3" = "xyes"; then

        ac_sqlite3_header="sqlite3.h"

        sqlite3_version_req=ifelse([$1], [], [3.0.0], [$1])
        sqlite3_version_req_shorten=`expr $sqlite3_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
        sqlite3_version_req_major=`expr $sqlite3_version_req : '\([[0-9]]*\)'`
        sqlite3_version_req_minor=`expr $sqlite3_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
        sqlite3_version_req_micro=`expr $sqlite3_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
        if test "x$sqlite3_version_req_micro" = "x" ; then
            sqlite3_version_req_micro="0"
        fi

        sqlite3_version_req_number=`expr $sqlite3_version_req_major \* 1000000 \
                                   \+ $sqlite3_version_req_minor \* 1000 \
                                   \+ $sqlite3_version_req_micro`

        AC_MSG_CHECKING([for SQLite3 library >= $sqlite3_version_req])

        if test "$ac_sqlite3_path" != ""; then
            ac_sqlite3_ldflags="-L$ac_sqlite3_path/lib"
            ac_sqlite3_cppflags="-I$ac_sqlite3_path/include"
        else
            for ac_sqlite3_path_tmp in /usr /usr/local /opt ; do
                if test -f "$ac_sqlite3_path_tmp/include/$ac_sqlite3_header" \
                    && test -r "$ac_sqlite3_path_tmp/include/$ac_sqlite3_header"; then
                    ac_sqlite3_path=$ac_sqlite3_path_tmp
                    ac_sqlite3_ldflags="-I$ac_sqlite3_path_tmp/include"
                    ac_sqlite3_cppflags="-L$ac_sqlite3_path_tmp/lib"
                    break;
                fi
            done
        fi

        ac_sqlite3_ldflags="$ac_sqlite3_ldflags -lsqlite3"

        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $ac_sqlite3_cppflags"

        AC_LANG_PUSH(C++)
        AC_COMPILE_IFELSE(
            [
            AC_LANG_PROGRAM([[@%:@include <sqlite3.h>]],
                [[
#if (SQLITE_VERSION_NUMBER >= $sqlite3_version_req_number)
// Everything is okay
#else
#  error SQLite version is too old
#endif
                ]]
            )
            ],
            [
            AC_MSG_RESULT([yes])
            success="yes"
            ],
            [
            AC_MSG_RESULT([not found])
            succees="no"
            ]
        )
        AC_LANG_POP([C++])

        CPPFLAGS="$saved_CPPFLAGS"

        if test "$success" = "yes"; then

            SQLITE3_CFLAGS="$ac_sqlite3_cppflags"
            SQLITE3_LDFLAGS="$ac_sqlite3_ldflags"

            ac_sqlite3_header_path="$ac_sqlite3_path/include/$ac_sqlite3_header"

            dnl Retrieve SQLite release version
            if test "x$ac_sqlite3_header_path" != "x"; then
                ac_sqlite3_version=`cat $ac_sqlite3_header_path \
                    | grep '#define.*SQLITE_VERSION.*\"' | sed -e 's/.* "//' \
                        | sed -e 's/"//'`
                if test $ac_sqlite3_version != ""; then
                    SQLITE3_VERSION=$ac_sqlite3_version
                else
                    AC_MSG_WARN([Can not find SQLITE_VERSION macro in sqlite3.h header to retrieve SQLite version!])
                fi
            fi

            AC_SUBST(SQLITE3_CFLAGS)
            AC_SUBST(SQLITE3_LDFLAGS)
            AC_SUBST(SQLITE3_VERSION)
            AC_DEFINE(HAVE_SQLITE3)
        fi
    fi
])

Copyright © 2006 Mateusz Loskot <mateusz@loskot.net>

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.