configure.ac

###############################################################################
## leveldbd
##
## Copyright (c) 2014 Seungyoung Kim.
## All rights reserved.
##
## leveldbd is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## leveldbd is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with leveldbd. If not, see <http://www.gnu.org/licenses/>.
###############################################################################

AC_COPYRIGHT([
==============================================================================
 leveldbd

 Copyright (c) 2014 Seungyoung Kim.
 All rights reserved.

 leveldbd is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 leveldbd is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with leveldbd. If not, see <http://www.gnu.org/licenses/>.
==============================================================================
])

## Internal functions
AC_DEFUN([Q_ARG_ENABLE], [
	AC_ARG_ENABLE([$1],[AS_HELP_STRING([--enable-$1], [$2])],,[enableval=no])
	if test "$enableval" = yes; then
		AC_MSG_NOTICE(['$1' feature is enabled])
		CPPFLAGS="$CPPFLAGS $3"
	fi
])

AC_DEFUN([Q_ARG_DISABLE], [
	AC_ARG_ENABLE([$1],[AS_HELP_STRING([--disable-$1], [$2])],,[enableval=yes])
	if test "$enableval" = no; then
		AC_MSG_NOTICE(['$1' feature is disabled])
		CPPFLAGS="$CPPFLAGS $3"
	fi
])

## Initialize
AC_INIT([leveldbd], [1 RELEASE], [https://github.com/wolkykim/leveldbd])
AC_CONFIG_SRCDIR([config.h.in])
AC_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile src/Makefile])
AC_SUBST(DEPLIBS, [""])

## Set path
PATH="$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
CPPFLAGS="$CPPFLAGS -I/usr/include -I/usr/local/include"
CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
LDFLAGS="$LDFLAGS -L/usr/lib -L/usr/local/lib"

## Set autoconf setting
#AC_CANONICAL_TARGET
AC_PREFIX_DEFAULT([/usr/local])
#AC_PRESERVE_HELP_ORDER

## Checks for programs.
AC_PROG_CC
if test $ac_compiler_gnu = yes; then
	CFLAGS="-Wall -Wstrict-prototypes -fPIC"
#else
#	AC_MSG_FAILURE([GCC is required.])
fi
AC_PROG_CC_C99
if test $ac_cv_prog_cc_c99 = no; then
	AC_MSG_FAILURE([Compiler does not support C99 mode.])
fi

AC_PROG_INSTALL
AC_PROG_MKDIR_P
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_PATH_PROG(AR, ar)
AC_PATH_PROG(CHMOD, chmod)
AC_PATH_PROG(LD, ld)
AC_PATH_PROG(RM, rm)

## Checks for header files.
AC_HEADER_STDC
AC_HEADER_STDBOOL
AC_HEADER_DIRENT
AC_CHECK_HEADER([inttypes.h])
AC_CHECK_HEADER([openssl/ssl.h])
AC_CHECK_HEADER([event2/event.h])

## Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_INT8_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_OFF_T

## Checks for libraries.

## Checks for library functions.
AC_CHECK_LIB([pthread], [main], [], AC_MSG_ERROR([Cannot find pthread library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -lpthread"])

AC_CHECK_LIB([event], [main], [], AC_MSG_ERROR([Cannot find libevent library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -levent"])

AC_CHECK_LIB([event_pthreads], [main], [], AC_MSG_ERROR([Cannot find libevent_pthreads library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -levent_pthreads"])

AC_CHECK_LIB([event_openssl], [main], [], AC_MSG_ERROR([Cannot find libevent_openssl library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -levent_openssl"])

AC_CHECK_LIB([ssl], [main], [], AC_MSG_ERROR([Cannot find openssl library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -lssl"])

AC_CHECK_LIB([crypto], [main], [], AC_MSG_ERROR([Cannot find crypto library.]))
AC_SUBST(DEPLIBS, ["$DEPLIBS -lcrypto"])

##
## --enable section
##

Q_ARG_ENABLE([debug], [Enable debugging output. This will print out internal debugging messages to stdout.], [-DBUILD_DEBUG])
if test "$enableval" = yes; then
	CFLAGS="$CFLAGS -g -O2"
else
	CFLAGS="$CFLAGS -g -O2"
fi

AC_MSG_NOTICE([CFLAGS $CFLAGS])
AC_MSG_NOTICE([CPPFLAGS $CPPFLAGS])
AC_MSG_NOTICE([DEPLIBS $DEPLIBS])

## Create Makefile
AC_OUTPUT