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dnl -*- mode: m4; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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dnl vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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dnl pandora-build: A pedantic build system
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dnl Copyright (C) 2009 Sun Microsystems, Inc.
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dnl This file is free software; Sun Microsystems
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl --------------------------------------------------------------------
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dnl Check for Google Proto Buffers
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dnl --------------------------------------------------------------------
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AC_DEFUN([_PANDORA_SEARCH_LIBPROTOBUF],[
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AC_REQUIRE([PANDORA_HAVE_PTHREAD])
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save_CXXFLAGS="${CXXFLAGS}"
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CXXFLAGS="${PTHREAD_CFLAGS} ${CXXFLAGS}"
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AC_LIB_HAVE_LINKFLAGS(protobuf,,
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[#include <google/protobuf/descriptor.h>],
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[google::protobuf::FileDescriptor* file;],
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CXXFLAGS="${save_CXXFLAGS}"
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AC_DEFUN([PANDORA_HAVE_LIBPROTOBUF],[
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AC_REQUIRE([_PANDORA_SEARCH_LIBPROTOBUF])
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AC_DEFUN([PANDORA_REQUIRE_LIBPROTOBUF],[
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AC_REQUIRE([PANDORA_HAVE_LIBPROTOBUF])
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AS_IF([test x$ac_cv_libprotobuf = xno],
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AC_MSG_ERROR([libprotobuf is required for ${PACKAGE}. On Debian this can be found in libprotobuf-dev. On RedHat this can be found in protobuf-devel.]))
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AC_DEFUN([PANDORA_PROTOBUF_REQUIRE_VERSION],[
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AC_REQUIRE([_PANDORA_SEARCH_LIBPROTOBUF])
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p_recent_ver_major=`echo $p_recent_ver | cut -f1 -d.`
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p_recent_ver_minor=`echo $p_recent_ver | cut -f2 -d.`
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p_recent_ver_patch=`echo $p_recent_ver | cut -f3 -d.`
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p_recent_ver_hex=`printf "%d%03d%03d" $p_recent_ver_major $p_recent_ver_minor $p_recent_ver_patch`
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AC_CACHE_CHECK([for protobuf >= $p_recent_ver],
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[drizzle_cv_protobuf_recent],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#include <google/protobuf/descriptor.h>
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#if GOOGLE_PROTOBUF_VERSION < $p_recent_ver_hex
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# error Your version of Protobuf is too old
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[drizzle_cv_protobuf_recent=yes],
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[drizzle_cv_protobuf_recent=no])])
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AS_IF([test "$drizzle_cv_protobuf_recent" = "no"],[
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AC_MSG_ERROR([Your version of Google Protocol Buffers is too old. ${PACKAGE} requires at least version $p_recent_ver])
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AC_DEFUN([_PANDORA_SEARCH_PROTOC],[
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AC_REQUIRE([_PANDORA_SEARCH_LIBPROTOBUF])
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AC_PATH_PROG([PROTOC],[protoc],[no],[$LIBPROTOBUF_PREFIX/bin:$PATH])
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AC_DEFUN([PANDORA_HAVE_PROTOC],[
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AC_REQUIRE([_PANDORA_SEARCH_PROTOC])
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AC_DEFUN([PANDORA_REQUIRE_PROTOC],[
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AC_REQUIRE([PANDORA_HAVE_PROTOC])
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AS_IF([test "x$PROTOC" = "xno"],[
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AC_MSG_ERROR([Couldn't find the protoc compiler. On Debian this can be found in protobuf-compiler. On RedHat this can be found in protobuf-compiler.])