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capnproto/c++/configure.ac

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## Process this file with autoconf to produce configure.
AC_INIT([Capn Proto],[0.10-dev],[capnproto@googlegroups.com],[capnproto-c++])
AC_CONFIG_SRCDIR([src/capnp/layout.c++])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
# autoconf's default CXXFLAGS are usually "-g -O2". A far more reasonable
# default is -O2 -NDEBUG.
AS_IF([test "x${ac_cv_env_CFLAGS_set}" = "x"],
[CFLAGS="-O2 -DNDEBUG"])
AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"],
[CXXFLAGS="-O2 -DNDEBUG"])
AM_INIT_AUTOMAKE([tar-ustar])
AC_ARG_WITH([external-capnp],
[AS_HELP_STRING([--with-external-capnp],
[use the system capnp binary (or the one specified with $CAPNP) instead of compiling a new
one (useful for cross-compiling)])],
[external_capnp=yes],[external_capnp=no])
AC_ARG_WITH([zlib],
[AS_HELP_STRING([--with-zlib],
[build libkj-gzip by linking against zlib @<:@default=check@:>@])],
[],[with_zlib=check])
AC_ARG_WITH([openssl],
[AS_HELP_STRING([--with-openssl],
[build libkj-tls by linking against openssl @<:@default=check@:>@])],
[],[with_openssl=check])
AC_ARG_ENABLE([reflection], [
AS_HELP_STRING([--disable-reflection], [
compile Cap'n Proto in "lite mode", in which all reflection APIs (schema.h, dynamic.h, etc.)
are not included. Produces a smaller library at the cost of features. All programs built
against the library MUST be compiled with -DCAPNP_LITE=1. Note that because the compiler
itself uses reflection in its implementation, you must also use --with-external-capnp when
using this option.])
], [
case "${enableval}" in
yes)
lite_mode=no
;;
no)
lite_mode=yes
AS_IF([test "$external_capnp" != "yes"], [
AC_MSG_ERROR([you must specify --with-external-capnp when using --disable-reflection])
])
;;
*)
AC_MSG_ERROR([bad value ${enableval} for --enable-reflection])
;;
esac
], [lite_mode=no])
# Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_LANG([C++])
AX_CXX_COMPILE_STDCXX_14
AS_CASE("${host_os}", *mingw*, [
# We don't use pthreads on MinGW.
PTHREAD_CFLAGS="-mthreads"
PTHREAD_LIBS=""
PTHREAD_CC=""
ASYNC_LIBS="-lws2_32"
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC)
AC_SUBST(ASYNC_LIBS)
], *, [
ACX_PTHREAD
ASYNC_LIBS=""
AC_SUBST(ASYNC_LIBS)
])
LT_INIT
AS_IF([test "$external_capnp" != "no"], [
AS_IF([test "x$CAPNP" = "x"], [CAPNP="capnp"], [with_capnp=yes])
AS_IF([test "x$CAPNPC_CXX" = "x"], [
# CAPNPC_CXX was not specified. Choose a reasonable default.
AS_CASE([$CAPNP], [*/*], [
# $CAPNP contains a slash, so it's not on $PATH. Assume capnpc-c++ is not either, but is
# in the same directory.
CAPNPC_CXX=`dirname $CAPNP`/capnpc-c++
], [
# $CAPNP is on $PATH, so tell it to find the plugin on $PATH as well.
CAPNPC_CXX="c++"
])
])
AC_SUBST([CAPNP])
AC_SUBST([CAPNPC_CXX])
])
AM_CONDITIONAL([USE_EXTERNAL_CAPNP], [test "$external_capnp" != "no"])
AM_CONDITIONAL([LITE_MODE], [test "$lite_mode" = "yes"])
AS_IF([test "$lite_mode" = "yes"], [
CXXFLAGS="-DCAPNP_LITE $CXXFLAGS"
CAPNP_LITE_FLAG=-DCAPNP_LITE
])
AC_SUBST([CAPNP_LITE_FLAG])
AC_SEARCH_LIBS(sched_yield, rt)
# Users will need to use the same -stdlib as us so we'd better let pkg-config know about it.
STDLIB_FLAG=`echo "$CXX $CXXFLAGS" | grep -o ' [[-]]stdlib=[[^ ]]*'`
AC_SUBST([STDLIB_FLAG])
LIBS="$PTHREAD_LIBS $LIBS"
CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
AC_DEFUN([CAPNP_PKG_CONFIG_FILES], [ \
pkgconfig/capnp.pc \
pkgconfig/capnpc.pc \
pkgconfig/capnp-rpc.pc \
pkgconfig/capnp-json.pc \
pkgconfig/capnp-websocket.pc \
pkgconfig/kj.pc \
pkgconfig/kj-async.pc \
pkgconfig/kj-http.pc \
pkgconfig/kj-gzip.pc \
pkgconfig/kj-tls.pc \
pkgconfig/kj-test.pc \
])
AC_DEFUN([CAPNP_CMAKE_CONFIG_FILES], [ \
cmake/CapnProtoConfig.cmake \
cmake/CapnProtoConfigVersion.cmake \
])
[CAPNP_PKG_CONFIG_FILES]="CAPNP_PKG_CONFIG_FILES"
[CAPNP_CMAKE_CONFIG_FILES]="CAPNP_CMAKE_CONFIG_FILES"
AC_SUBST([CAPNP_PKG_CONFIG_FILES])
AC_SUBST([CAPNP_CMAKE_CONFIG_FILES])
# Don't include security release in soname -- we want to replace old binaries
# in this case.
SO_VERSION=$(echo $VERSION | sed -e 's/^\([0-9]*[.][0-9]*[.][0-9]*\)\([.][0-9]*\)*\(-.*\)*$/\1\3/g')
AC_SUBST([SO_VERSION])
# CapnProtoConfig.cmake.in needs these PACKAGE_* output variables.
PACKAGE_INIT="set([CAPNP_PKG_CONFIG_FILES] CAPNP_PKG_CONFIG_FILES)"
PACKAGE_CMAKE_INSTALL_FULL_INCLUDEDIR="\${CMAKE_CURRENT_LIST_DIR}/../../../include"
AC_SUBST([PACKAGE_INIT])
AC_SUBST([PACKAGE_CMAKE_INSTALL_FULL_INCLUDEDIR])
# CapnProtoConfigVersion.cmake.in needs PACKAGE_VERSION (already defined by AC_INIT) and
# CMAKE_SIZEOF_VOID_P output variables.
AC_CHECK_SIZEOF([void *])
AC_SUBST(CMAKE_SIZEOF_VOID_P, $ac_cv_sizeof_void_p)
# Detect presence of zlib, if it was not specified explicitly.
AS_IF([test "$with_zlib" = check], [
AC_CHECK_LIB(z, deflate, [:], [
with_zlib=no
])
AC_CHECK_HEADER([zlib.h], [:], [
with_zlib=no
])
AS_IF([test "$with_zlib" = no], [
AC_MSG_WARN("could not find zlib -- won't build libkj-gzip")
], [
with_zlib=yes
])
])
AS_IF([test "$with_zlib" != no], [
CXXFLAGS="$CXXFLAGS -DKJ_HAS_ZLIB"
])
AM_CONDITIONAL([BUILD_KJ_GZIP], [test "$with_zlib" != no])
# Detect presence of OpenSSL, if it was not specified explicitly.
AS_IF([test "$with_openssl" = check], [
AC_CHECK_LIB(crypto, CRYPTO_new_ex_data, [:], [
with_openssl=no
])
AC_CHECK_LIB(ssl, OPENSSL_init_ssl, [:], [
with_openssl=no
], [-lcrypto])
AC_CHECK_HEADER([openssl/ssl.h], [:], [
with_openssl=no
])
AS_IF([test "$with_openssl" = no], [
AC_MSG_WARN("could not find OpenSSL -- won't build libkj-tls")
], [
with_openssl=yes
])
])
AS_IF([test "$with_openssl" != no], [
CXXFLAGS="$CXXFLAGS -DKJ_HAS_OPENSSL"
])
AM_CONDITIONAL([BUILD_KJ_TLS], [test "$with_openssl" != no])
# CapnProtoConfig.cmake.in needs this variable.
AC_SUBST(WITH_OPENSSL, $with_openssl)
AM_CONDITIONAL([HAS_FUZZING_ENGINE], [test "x$LIB_FUZZING_ENGINE" != "x"])
AC_CONFIG_FILES([Makefile] CAPNP_PKG_CONFIG_FILES CAPNP_CMAKE_CONFIG_FILES)
AC_OUTPUT