PACKAGE=wiredtiger
AC_PREREQ(2.63)
AC_INIT(WiredTiger, m4_normalize(m4_include([build_posix/aclocal/version.m4])),
	[support@wiredtiger.com])

m4_include([build_posix/aclocal/version-set.m4])

AC_CONFIG_AUX_DIR([build_posix/gnu-support])
AC_CONFIG_MACRO_DIR([build_posix/aclocal])
AC_CONFIG_SRCDIR([RELEASE_INFO])

# We rely on some automake features for testing (like AM_TEST_ENVIRONMENT)
# that didn't work before 1.11.6.
AM_INIT_AUTOMAKE([1.11.6 foreign parallel-tests subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([no])])

# If CFLAGS/CXXFLAGS were not set on entry, default to "-O3 -g"
: ${CFLAGS=-O3 -g}
: ${CXXFLAGS=-O3 -g}

AC_PROG_CC(cc gcc)
AC_PROG_CXX(c++ g++)
AM_PROG_AS(as gas)

# Configure options.
AM_OPTIONS

define([AC_LIBTOOL_LANG_CXX_CONFIG], [:])dnl
define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
LT_PREREQ(2.2.6)
LT_INIT([pic-only])
AC_SUBST([LIBTOOL_DEPS])

# If enable-strict is configured, turn on as much error checking as we can for
# this compiler. Intended for developers, and only works for gcc/clang, but it
# fills a need.
if test "$wt_cv_enable_strict" = "yes"; then
	wt_cv_cc_version="`$CC --version | sed -eq`"
	case "$wt_cv_cc_version" in
	*clang*)
		AM_CLANG_WARNINGS;;
	*gcc*|*GCC*)
		AM_GCC_WARNINGS;;
	*)
		AC_MSG_ERROR(
		    [--enable-strict does not support "$wt_cv_cc_version".]);;
	esac

	AM_CFLAGS="$AM_CFLAGS $wt_cv_strict_warnings"
fi

AM_CONDITIONAL([POSIX_HOST], [true])
AM_CONDITIONAL([WINDOWS_HOST], [false])

AS_CASE([$host_cpu],
	[ppc64*], [wt_cv_powerpc="yes"],
	[elf64lppc], [wt_cv_powerpc="yes"],
	[powerpc*], [wt_cv_powerpc="yes"],
	[wt_cv_powerpc="no"])
AM_CONDITIONAL([POWERPC_HOST], [test "$wt_cv_powerpc" = "yes"])

# This is a workaround as part of WT-2459. Currently, clang (v3.7) does not
# support compiling the ASM code we have to perform the CRC checks on PowerPC.
# To compile with clang we need to override the ASM compiler with CCAS to use
# gcc. Unfortunately, doing the compilation in this manner means libtool can't
# determine what tag to use for that one .S file. If we catch that we are using
# two different compilers for CC and CCAS and we are on a PowerPC system we
# overload the libtool flags to provide CC by default.
if test "$wt_cv_powerpc" = "yes" -a "$CC" != "$CCAS"; then
	[AM_LIBTOOLFLAGS+="--tag=CC"]
fi
AC_SUBST(AM_LIBTOOLFLAGS)

if test "$GCC" = "yes"; then
	# The Solaris gcc compiler gets the additional -pthreads flag.
	if test "`uname -s`" = "SunOS"; then
		AM_CFLAGS="$AM_CFLAGS -pthreads"
	fi
else
	# The Solaris native compiler gets the additional -mt flag.
	if test "`uname -s`" = "SunOS"; then
		AM_CFLAGS="$AM_CFLAGS -mt"
	fi
fi

# Java and Python APIs
if test "$wt_cv_enable_java" = "yes" -o "$wt_cv_enable_python" = "yes"; then
	AX_PKG_SWIG(2.0.4, [],
	    [AC_MSG_WARN([SWIG is required to rebuild Java or Python APIs.])])
fi

if test "$wt_cv_enable_java" = "yes"; then
	JAVAC=${JAVAC-javac}
	AX_PROG_JAVAC
	AX_PROG_JAR
	AX_JNI_INCLUDE_DIR
	AX_CHECK_JUNIT
	for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS ; do
		JNI_CPPFLAGS="$JNI_CPPFLAGS -I$JNI_INCLUDE_DIR"
	done
	AC_SUBST(JNI_CPPFLAGS)
fi

if test "$wt_cv_enable_python" = "yes"; then
	AM_PATH_PYTHON([2.6])
	if test -n "$with_python_prefix" ; then
		PYTHON_INSTALL_ARG="-d $with_python_prefix"
	fi
	AC_SUBST(PYTHON_INSTALL_ARG)
fi

AM_TYPES

AC_PROG_INSTALL

AC_CHECK_HEADERS([x86intrin.h])
AC_CHECK_LIB(pthread, pthread_create)
AC_CHECK_LIB(dl, dlopen)
AC_CHECK_LIB(rt, sched_yield)

AC_CHECK_FUNCS([\
	clock_gettime fallocate fcntl fread_unlocked ftruncate gettimeofday\
	posix_fadvise posix_fallocate posix_madvise\
	strtouq sync_file_range])

# OS X wrongly reports that it has fdatasync
AS_CASE([$host_os], [darwin*], [], [AC_CHECK_FUNCS([fdatasync])])

# Check for posix_memalign explicitly: it is a builtin in some compilers and
# the generic declaration in AC_CHECK_FUNCS is incompatible.
AX_FUNC_POSIX_MEMALIGN

AC_SYS_LARGEFILE

AC_C_BIGENDIAN

AC_MSG_CHECKING([for a 64-bit build])
AC_COMPUTE_INT(ac_cv_sizeof_void_p, [sizeof(void *)])
if test "$ac_cv_sizeof_void_p" != "8" ; then
    AC_MSG_ERROR([WiredTiger requires a 64-bit build.])
fi
AC_MSG_RESULT(yes)

# Linux requires _GNU_SOURCE to be defined
case "$host_os" in
linux*)	AM_CFLAGS="$AM_CFLAGS -D_GNU_SOURCE" ;;
esac

# Linux requires buffers aligned to 4KB boundaries for O_DIRECT to work.
BUFFER_ALIGNMENT=0
if test "$ax_cv_func_posix_memalign_works" = "yes" ; then
	case "$host_os" in
	linux*)	BUFFER_ALIGNMENT=4096 ;;
	esac
fi
AC_DEFINE_UNQUOTED(WT_BUFFER_ALIGNMENT_DEFAULT, $BUFFER_ALIGNMENT,
	[Default alignment of buffers used for I/O])

AC_SUBST(AM_CFLAGS)

# test/format optionally uses a Oracle Berkeley DB release for verification.
AC_MSG_CHECKING([if --with-berkeleydb=DIR option specified])
AC_ARG_WITH(berkeleydb,
    [AS_HELP_STRING([--with-berkeleydb=DIR],
	[Specify installed library directory of Berkeley DB])],
    [with_berkeleydb="$withval"], [with_berkeleydb="NO_BERKELEY_DB_LIBRARY"])
AC_MSG_RESULT($with_berkeleydb)
AM_CONDITIONAL([HAVE_BERKELEY_DB], [test -d $with_berkeleydb])
AC_SUBST(BERKELEY_DB_PATH, [$with_berkeleydb])

# test/format optionally supports the Levyx/Helium key/value store.
AC_MSG_CHECKING([if --with-helium=DIR option specified])
AC_ARG_WITH(helium,
    [AS_HELP_STRING([--with-helium=DIR],
	[Specify installed library directory of Helium])],
    [with_helium="$withval"], [with_helium="NO_HELIUM_LIBRARY"])
AC_MSG_RESULT($with_helium)
AM_CONDITIONAL([HAVE_HELIUM], [test -d $with_helium])
AC_SUBST(HELIUM_PATH, [$with_helium])

# Sanity check the build
AM_COND_IF([LEVELDB], [
  AM_COND_IF([SNAPPY], [], [
    AC_MSG_ERROR(
      [--enable-leveldb requires --enable-snappy or --with-builtins=snappy.])
  ])
])


# Warn that diagnostic builds should not be used in production
if test "$wt_cv_enable_diagnostic" = "yes"; then
	AC_MSG_WARN(
	    [DIAGNOSTIC BUILDS ARE NOT RECOMMENDED FOR PRODUCTION DEPLOYMENT.])
fi

# If we are building in a tree without documentation, check if doxygen is
# available.
if test -f "$srcdir/docs/index.html" ; then
	wt_cv_docs_exist=yes
else
	wt_cv_docs_exist=no
fi

if test "$wt_cv_docs_exist" = "no"; then
	AC_CHECK_PROG([DOXYGEN], [doxygen], [doxygen], [false])
fi

if test "$wt_cv_docs_exist" = "yes" -o "$DOXYGEN" = "doxygen" ; then
	MAN1_PAGES="$srcdir/docs/man/man1/wt.1"
	AC_SUBST(MAN1_PAGES)
	MAN3_PAGES="$srcdir/docs/man/man3/wiredtiger.3"
	AC_SUBST(MAN3_PAGES)
fi

# Output files
AC_CONFIG_HEADERS([wiredtiger_config.h:build_posix/config.hin])

# The LevelDB API needs some configuration knowledge
AM_COND_IF([LEVELDB],
    AC_CONFIG_HEADERS([api/leveldb/leveldb_wt_config.h:api/leveldb/config.hin]))

# BEGIN check existence -- maintained by reconf and Make.subdirs
# END check existence

AC_CONFIG_FILES([
	Makefile
	wiredtiger.h:src/include/wiredtiger.in
	wiredtiger.pc:build_posix/wiredtiger.pc.in
])
AC_OUTPUT