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# - If the library source code has changed at all since the last update,
# then increment revision.
# - If any interfaces have been added, removed, or changed since the last
# update, increment current, and set revision to 0.
# - If any interfaces have been added since the last public release, then
# increment age.
# - If any interfaces have been removed since the last public release, then
# set age to 0.
m4_define([lib_current],0)
m4_define([lib_revision],2)
m4_define([lib_age],0)
# Setup autoconf
AC_INIT(eegdev,[lib_current.lib_revision],[nicolas.bourdaud@epfl.ch])
AC_CONFIG_SRCDIR([src/core/eegdev.h])
AC_CONFIG_LIBOBJ_DIR([lib])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config/config.h])
# Setup automake
AM_INIT_AUTOMAKE([no-dist-gzip dist-bzip2 color-tests subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CANONICAL_HOST
AC_CANONICAL_BUILD
# Check for programs
AC_PROG_CC_C99
gl_EARLY
AM_PROG_CC_C_O
LT_INIT([win32-dll disable-static])
LT_SYS_MODULE_EXT
AC_SUBST(LIBTOOL_DEPS)
AC_CHECK_PROG(HAS_FLEX,flex,yes,no)
AC_CHECK_PROG(HAS_BISON,bison,yes,no)
gl_INIT
AC_C_BIGENDIAN
AC_DEF_API_EXPORT_ATTRS
# Test for the correct way to set CLOEXEC to file descriptors
AC_CHECK_DECLS([O_CLOEXEC, FD_CLOEXEC], [], [], [[#include <fcntl.h>]])
# pthread is needed in core and modules
AC_SEARCH_LIBS([pthread_create], [pthread posix4], [],
AC_MSG_ERROR([The pthread library has not been found]))
AC_CHECK_FUNC([clock_gettime], [], [OBJS="clock_gettime.o"])
AC_CHECK_FUNC([clock_nanosleep], [], [OBJS="$OBJS clock_nanosleep.o"])
AC_CHECK_DECLS([clock_nanosleep],[build_saw_plugin=yes],[build_saw_plugin=no],[#include <time.h>])
AM_CONDITIONAL([BUILD_SAW_EXAMPLE], [test "x$build_saw_plugin" = xyes])
# Test whether the core library should be build
save_LIBS=$LIBS
AC_ARG_ENABLE([corelib-build], AC_HELP_STRING([--enable-corelib-build],
[Build the core library. Disabling it may be useful
when only some plugins must be rebuilt @<:@default=yes@:>@]),
[], [enable_corelib_build=yes])
AS_IF([test "x$enable_corelib_build" = xno],
[AC_SEARCH_LIBS([egd_open], [eegdev], [],
[AC_MSG_FAILURE([eegdev library required since it is not built])])],
[AS_IF([test "x$HAS_FLEX" = xyes && test "x$HAS_BISON" = xyes],
[enable_corelib_build=yes],
[AC_MSG_ERROR([flex and bison needed to build the core lib])])])
AM_CONDITIONAL([BUILD_CORELIB], [test "x$enable_corelib_build" = xyes])
AC_SUBST([CORE_EEGDEV_LIBS], "$LIBS")
LIBS=$save_LIBS
# EEGfile support
save_LIBS=$LIBS
AC_ARG_WITH([xdf], AC_HELP_STRING([--with-xdf],
[Support for EEGfile backend @<:@default=check@:>@]),
[], [with_xdf=check])
AS_IF([test "x$with_xdf" != xno],
[AC_SEARCH_LIBS([xdf_open], [xdffileio], [xdf_support=yes],
[xdf_support=no; if test "x$with_xdf" != xcheck; then
AC_MSG_FAILURE([xdffileio library required for EEGfile support])
fi])],
[xdf_support=no])
AM_CONDITIONAL([XDF_SUPPORT], [test "x$xdf_support" = "xyes"])
AS_IF([test "x$xdf_support" = "xyes"], optional_examples=recinxdf$EXEEXT)
AC_SUBST([XDF_LIBS], "$LIBS")
LIBS=$save_LIBS
# Biosemi support
save_LIBS=$LIBS
AC_ARG_WITH([act2], AC_HELP_STRING([--with-act2],
[Support for Biosemi backend @<:@default=check@:>@]),
[], [with_act2=check])
AS_IF([test "x$with_act2" != xno],
[PKG_CHECK_MODULES(LIBUSB, [libusb-1.0], [act2_support=yes],
[act2_support=no; if test "x$with_act2" != xcheck; then
AC_MSG_FAILURE([libusb-1.0 library required for Biosemi support])
fi])],
[act2_support=no])
LIBS="$LIBUSB_LIBS $LIBS"
AS_IF([test "x$act2_support" = xyes],
[AC_CHECK_FUNC([libusb_fill_bulk_transfer],
[AC_DEFINE([NO_LIBUSB_INLINE_HELPER], [1], [Define to 1 if there is no inline helper function])])])
AM_CONDITIONAL([ACT2_SUPPORT], [test "x$act2_support" = xyes])
AC_SUBST([ACT2_LIBS], "$LIBS")
AC_SUBST([CPPFLAGS], "$LIBUSB_CFLAGS $CPPFLAGS")
LIBS=$save_LIBS
# gTec support
save_LIBS=$LIBS
AC_ARG_WITH([gtec], AC_HELP_STRING([--with-gtec],
[Support for gTec backend @<:@default=check@:>@]),
[], [with_gtec=check])
gtec_support=no
AS_IF([test "x$with_gtec" != xno],
[AC_SEARCH_LIBS([GT_OpenDevice], [gUSBampAPI gusbampapi], [gtec_support=yes])])
AS_IF([test "x$with_gtec" != xcheck && test "x$with_gtec" != xno],
AS_IF([test "x$gtec_support" = xno],
AC_MSG_FAILURE([gUSBampAPI library required for gTec support])))
AM_CONDITIONAL([GTEC_SUPPORT], [test "x$gtec_support" = xyes])
AC_SUBST([GTEC_LIBS], "$LIBS")
LIBS=$save_LIBS
# Neurosky support
save_LIBS=$LIBS
AC_ARG_WITH([neurosky], AC_HELP_STRING([--with-neurosky],
[Support for Neurosky backend @<:@default=no@:>@]),
[], [with_neurosky=no])
AS_IF([test "x$with_neurosky" != xno],
AC_SEARCH_LIBS([str2ba], [bluetooth], [neurosky_support=yes],
[neurosky_support=no; if test "x$with_neurosky" != xcheck; then
AC_MSG_FAILURE([bluetooth library required for neurosky support])
fi]), [neurosky_support=no])
AM_CONDITIONAL([NSKY_SUPPORT], [test "x$neurosky_support" = xyes])
AC_SUBST([NSKY_LIBS], "$LIBS")
LIBS=$save_LIBS
# Tobi interface A support
save_LIBS=$LIBS
AC_ARG_WITH([tia], AC_HELP_STRING([--with-tia],
[Support for Tobi interface A backend @<:@default=check@:>@]),
[], [with_tia=check])
AS_IF([test "x$with_tia" != xno],
[AC_SEARCH_LIBS([XML_Parse], [expat], [tia_support=yes],
[tia_support=no; if test "x$with_tia" != xcheck; then
AC_MSG_FAILURE([the expat library is required for Tobi interface A support])
fi])], [tia_support=no])
AM_CONDITIONAL([TIA_SUPPORT], [test "x$tia_support" = xyes])
AC_SUBST([TIA_LIBS], "$LIBS")
LIBS=$save_LIBS
AX_DEFINE_DIR([LIBDIR], [libdir], [Installed library path])
AX_DEFINE_DIR([SYSCONFDIR], [sysconfdir], [System configuration files path])
AC_SUBST([optional_examples])
AC_SUBST([CURRENT],[lib_current])
AC_SUBST([REVISION],[lib_revision])
AC_SUBST([AGE],[lib_age])
# Add ifndef in config.h to fix pthread-win32 header mess
AH_TOP([#ifndef CONFIG_H
#define CONFIG_H])
AH_BOTTOM([#endif /*CONFIG_H*/])
AC_CONFIG_FILES([Makefile lib/Makefile gnulib-local/Makefile
src/core/Makefile src/core/eegdev.pc
src/plugins/Makefile
tests/Makefile tests/fakelibs/Makefile
doc/Makefile doc/egd_open.3
doc/examples/Makefile
doc/examples/library-usage/Makefile])
AC_OUTPUT
echo "
Configuration summary
=====================
Core library build : $enable_corelib_build
--------------------------
EEG file support : $xdf_support
Biosemi support : $act2_support
gTec support : $gtec_support
Neurosky support : $neurosky_support
TobiIA support : $tia_support
"
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