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dnl
dnl @synopsis AX_BERKELEY_DB([MINIMUM-VERSION
dnl [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl
dnl This macro tries to find Berkeley DB. It honors MINIMUM-VERSION if given.
dnl
dnl If libdb is found, DB_HEADER and DB_LIBS variables are set and
dnl ACTION-IF-FOUND shell code is executed if specified. DB_HEADER is set to
dnl location of db.h header in quotes (e.g. "db3/db.h") and AC_DEFINE_UNQUOTED
dnl is called on it, so that you can type
dnl #include DB_HEADER
dnl in your C/C++ code. DB_LIBS is set to linker flags needed to link against
dnl the library (e.g. -ldb3.1) and AC_SUBST is called on it.
dnl
dnl @version $Id: berkeley_db.m4 935 2005-07-04 20:53:00Z vaclavslavik $
dnl @author Vaclav Slavik <vslavik@fastmail.fm>
dnl
AC_DEFUN([AX_BERKELEY_DB],
[
old_LIBS="$LIBS"
minversion=ifelse([$1], ,,$1)
DB_HEADER=""
DB_LIBS=""
if test -z $minversion ; then
minvermajor=0
minverminor=0
minverpatch=0
AC_MSG_CHECKING([for Berkeley DB])
else
minvermajor=`echo $minversion | cut -d. -f1`
minverminor=`echo $minversion | cut -d. -f2`
minverpatch=`echo $minversion | cut -d. -f3`
minvermajor=${minvermajor:-0}
minverminor=${minverminor:-0}
minverpatch=${minverpatch:-0}
AC_MSG_CHECKING([for Berkeley DB >= $minversion])
fi
for version in "" 5.0 4.9 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.6 3.5 3.4 3.3 3.2 3.1 ; do
if test -z $version ; then
db_lib="-ldb"
try_headers="db.h"
else
db_lib="-ldb-$version"
try_headers="db$version/db.h db`echo $version | sed -e 's,\..*,,g'`/db.h"
fi
LIBS="$old_LIBS $db_lib"
for db_hdr in $try_headers ; do
if test -z $DB_HEADER ; then
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[
#include <${db_hdr}>
],
[
#if !((DB_VERSION_MAJOR > (${minvermajor}) || \
(DB_VERSION_MAJOR == (${minvermajor}) && \
DB_VERSION_MINOR > (${minverminor})) || \
(DB_VERSION_MAJOR == (${minvermajor}) && \
DB_VERSION_MINOR == (${minverminor}) && \
DB_VERSION_PATCH >= (${minverpatch}))))
#error "too old version"
#endif
DB *db;
db_create(&db, NULL, 0);
])],
[
AC_MSG_RESULT([header $db_hdr, library $db_lib])
DB_HEADER="$db_hdr"
DB_LIBS="$db_lib"
])
fi
done
done
LIBS="$old_LIBS"
if test -z $DB_HEADER ; then
AC_MSG_RESULT([not found])
ifelse([$3], , :, [$3])
else
AC_DEFINE_UNQUOTED(DB_HEADER, ["$DB_HEADER"], [Berkeley DB header version])
AC_SUBST(DB_LIBS)
ifelse([$2], , :, [$2])
fi
])
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