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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_berkeley_db_cxx.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_BERKELEY_DB_CXX([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
#
# DESCRIPTION
#
# This macro tries to find Berkeley DB C++ support. It honors
# MINIMUM-VERSION if given.
#
# If libdb_cxx is found, DB_CXX_HEADER and DB_CXX_LIBS variables are set
# and ACTION-IF-FOUND shell code is executed if specified. DB_CXX_HEADER
# is set to location of db.h header in quotes (e.g. "db3/db_cxx.h") and
# AC_DEFINE_UNQUOTED is called on it, so that you can type
#
# #include DB_CXX_HEADER
#
# in your C/C++ code. DB_CXX_LIBS is set to linker flags needed to link
# against the library (e.g. -ldb3.1_cxx) and AC_SUBST is called on it.
#
# when specified user-selected spot (via --with-libdb) also sets
#
# DB_CXX_CPPFLAGS to the include directives required
# DB_CXX_LDFLAGS to the -L flags required
#
# LICENSE
#
# Copyright (c) 2008 Vaclav Slavik <vaclav.slavik@matfyz.cz>
# Copyright (c) 2011 Stephan Suerken <absurd@debian.org>
# Copyright (c) 2014 Kirill A. Korinskiy <catap@catap.ru>
#
# 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. This file is offered as-is, without any
# warranty.
#serial 6
AC_DEFUN([AX_BERKELEY_DB_CXX],
[
AC_LANG_ASSERT(C++)
old_LIBS="$LIBS"
old_LDFLAGS="$LDFLAGS"
old_CPPFLAGS="$CPPFLAGS"
libdbdir=""
AC_ARG_WITH(libdb,
AS_HELP_STRING([--with-libdb=DIR],
[root of the Berkeley DB directory]),
[
case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([Invalid --with-libdb value])
;;
*) libdbdir="$withval"
;;
esac
], [])
minversion=ifelse([$1], ,,$1)
DB_CXX_HEADER=""
DB_CXX_LIBS=""
DB_CXX_LDFLAGS=""
DB_CXX_CPPFLAGS=""
if test -z $minversion ; then
minvermajor=0
minverminor=0
minverpatch=0
AC_MSG_CHECKING([for Berkeley DB (C++)])
else
minvermajor=`echo $minversion | cut -d. -f1`
minverminor=`echo $minversion | cut -d. -f2 -s`
minverpatch=`echo $minversion | cut -d. -f3 -s`
if test -z "$minvermajor"; then minvermajor=0; fi
if test -z "$minverminor"; then minverminor=0; fi
if test -z "$minverpatch"; then minverpatch=0; fi
AC_MSG_CHECKING([for Berkeley DB (C++) >= $minvermajor.$minverminor.$minverpatch])
fi
if test x$libdbdir != x""; then
DB_CXX_CPPFLAGS="-I${libdbdir}/include"
DB_CXX_LDFLAGS="-L${libdbdir}/lib"
LDFLAGS="$DB_CXX_LDFLAGS $old_LDFLAGS"
CPPFLAGS="$DB_CXX_CPPFLAGS $old_CPPFLAGS"
fi
for major in 4; do
for minor in 0 1 2 3 4 5 6 7 8 9; do
for version in "${major}.${minor}" "${major}${minor}"; do
try_libs="-ldb_cxx-${version}%-ldb-${version} -ldb${version}_cxx%-ldb${version}"
try_headers="db${major}.${minor}/db_cxx.h db${major}${minor}/db_cxx.h db${major}/db_cxx.h"
for db_cxx_hdr in $try_headers ; do
for db_cxx_lib in $try_libs; do
db_cxx_lib="$libdbdir `echo "$db_cxx_lib" | sed 's/%/ /g'`"
LIBS="$old_LIBS $db_cxx_lib"
#echo "Trying <$db_cxx_lib> <$db_cxx_hdr>"
if test -z $DB_CXX_HEADER ; then
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[
#include <${db_cxx_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_cxx_hdr, library $db_cxx_lib])
DB_CXX_HEADER="$db_cxx_hdr"
DB_CXX_LIBS="$db_cxx_lib"
],
)
fi
done
done
done
done
done
LIBS="$old_LIBS"
LDFLAGS="$old_LDFLAGS"
CPPFLAGS="$old_CPPFLAGS"
if test -z $DB_CXX_HEADER ; then
AC_MSG_RESULT([not found])
DB_CXX_LDFLAGS=""
DB_CXX_CPPFLAGS=""
ifelse([$3], , :, [$3])
else
AC_DEFINE_UNQUOTED(DB_CXX_HEADER, ["$DB_CXX_HEADER"], ["Berkeley DB C++ Header File"])
AC_SUBST(DB_CXX_LIBS)
AC_SUBST(DB_CXX_LDFLAGS)
AC_SUBST(DB_CXX_CPPFLAGS)
ifelse([$2], , :, [$2])
fi
])
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