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AC_PREREQ([2.68])

# Library versioning
# Making releases:
#       micro_version += 1
#       interface_age += 1
# If functions have been added or backward-compatibility has been broken:
#       interface_age = 0
m4_define([major_version], [0])
m4_define([minor_version], [0])
m4_define([micro_version], [1])
m4_define([interface_age], [0])

AC_INIT([rabbitmq-c], [major_version.minor_version.micro_version],
	[https://github.com/rabbitmq/rabbitmq-c/issues], [librabbitmq],
	[http://www.rabbitmq.com/])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([1.9 subdir-objects foreign -Wno-portability])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_SRCDIR([librabbitmq/amqp.h])
AC_GNU_SOURCE

# Initialize Libtool
LT_PREREQ([2.2])
LT_INIT([disable-static win32-dll])

# Program checks
AC_PROG_CC_C99

# Environment setup
AC_CANONICAL_HOST
AC_C_BIGENDIAN
AC_C_INLINE

# Set compiler flags
AX_TRY_CFLAGS([-Wall], [AX_CFLAGS([-Wall])])
AX_TRY_CFLAGS([-Wextra], [AX_CFLAGS([-Wextra])])
AX_TRY_CFLAGS([-pedantic], [AX_CFLAGS([-pedantic])])
AX_TRY_LDFLAGS([-no-undefined], [NO_UNDEFINED=-no-undefined])
AC_SUBST([NO_UNDEFINED])

# Libtool versioning
LT_CURRENT=m4_eval(minor_version + micro_version - interface_age)
LT_REVISION=interface_age
LT_AGE=m4_eval(m4_eval(minor_version + micro_version) - interface_age)
AC_SUBST([LT_CURRENT])
AC_SUBST([LT_REVISION])
AC_SUBST([LT_AGE])

# OS setup
os_unix=no
os_win32=no
AS_CASE([$host],
        [*-*-mingw*],
                [os_win32=yes],
        [*],
                [os_unix=yes])
AM_CONDITIONAL([OS_UNIX], [test "x$os_unix" = xyes])
AM_CONDITIONAL([OS_WIN32], [test "x$os_win32" = xyes])

# Extra Win32 setup
AS_IF([test "x$os_win32" = xyes],
      [AC_DEFINE([OS_WIN32], [1], [Define to 1 for Win32.])
       AS_IF([test "x$GCC" = xyes],
             [AX_LDFLAGS([-lws2_32])],
             [AX_CFLAGS([-I$top_srcdir/msinttypes])
              AX_LDFLAGS([ws2_32.lib])])])

# 64-bit option
AC_ARG_ENABLE([64-bit],
              [AS_HELP_STRING([--enable-64-bit],
                              [produce 64-bit library @<:@no@:>@])],
              [AX_TRY_CFLAGS([-m64], AX_CFLAGS([-m64]))
               AX_TRY_LDFLAGS([-m64], [AX_LDFLAGS([-m64])])],
              [enable_64_bit=no])

# Configure python
pythons="python python2.6 python2.5"
AC_CACHE_CHECK([for Python with 'json'], [ac_cv_path_PYTHON],
        [AC_PATH_PROGS_FEATURE_CHECK([PYTHON], [$pythons],
                [$ac_path_PYTHON -c 'import json' 2>/dev/null
                 AS_IF([test "x$?" = "x0"],
                       [ac_cv_path_PYTHON=$ac_path_PYTHON
                        ac_path_PYTHON_found=:])],
                [AC_MSG_RESULT([not found])])])
AC_CACHE_CHECK([for Python with 'simplejson'], [ac_cv_path_PYTHON],
        [AC_PATH_PROGS_FEATURE_CHECK([PYTHON], [$pythons],
                [$ac_path_PYTHON -c 'import simplejson' 2>/dev/null
                 AS_IF([test "x$?" = "x0"],
                       [ac_cv_path_PYTHON=$ac_path_PYTHON
                        ac_path_PYTHON_found=:])],
                [AC_MSG_RESULT([not found])])])
AS_IF([test "x$ac_cv_path_PYTHON" = "x"],
      [ac_cv_path_PYTHON=:
       AC_MSG_WARN([unable to rebuild AMQP framing])])
AC_SUBST([PYTHON], [$ac_cv_path_PYTHON])

# Configure AMQP command-line tools
AC_ARG_ENABLE([tools],
	      [AS_HELP_STRING([--enable-tools],
			      [build AMQP command-line tools @<:@auto@:>@])],,
	      [enable_tools=auto])
AS_IF([test "x$enable_tools" != "xno"],
      [AX_LIB_POPT([enable_tools=yes], [enable_tools=no])])
AM_CONDITIONAL([TOOLS], [test "x$enable_tools" = "xyes"])

# Configure command-line tool documentation
AC_ARG_ENABLE([docs],
	      [AS_HELP_STRING([--enable-docs],
			[build command-line tool documentation @<:@auto@:>@])],,
	       [AS_IF([test "x$enable_tools" = "xno"],
		      [enable_docs=no],
		      [enable_docs=auto])])
AC_ARG_VAR([XMLTO], [xmlto command])
AS_IF([test "x$enable_docs" != "xno"],
      [AS_IF([test "x$XMLTO" = "x"],
	     [AC_CHECK_PROGS([XMLTO], [xmlto])])
       AS_IF([test "x$XMLTO" != "x"],
	     [enable_docs=yes],
	     [enable_docs=no])])
AM_CONDITIONAL([DOCS], [test "x$enable_docs" = "xyes"])

AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
AC_MSG_RESULT([
$PACKAGE_NAME build options:
	Host: $host
	Version: $VERSION
	64-bit: $enable_64_bit
	Tools: $enable_tools
	Documentation: $enable_docs
])