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AC_INIT([libosmodsp],
        m4_esyscmd([./git-version-gen .tarball-version]),
        [gmr@lists.osmocom.org])

AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip 1.6])

dnl kernel style compile messages
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

dnl include release helper
RELMAKE='-include osmo-release.mk'
AC_SUBST([RELMAKE])

dnl checks for programs
AC_PROG_MAKE_SET
AC_PROG_CC
AC_PROG_INSTALL
LT_INIT([pic-only])

AC_PATH_PROG(DOXYGEN,doxygen,false)
AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)

AC_CONFIG_MACRO_DIR([m4])

dnl checks for libraries
PKG_CHECK_MODULES(FFTW3F, fftw3f >= 3.2.0)

dnl checks for header files
AC_CHECK_HEADERS([complex.h fcntl.h math.h stdio.h stdlib.h string.h unistd.h sys/mman.h sys/types.h sys/stat.h],,
	AC_MSG_ERROR([Missing required header files.]))

# The following test is taken from WebKit's webkit.m4
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fvisibility=hidden "
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
    [ AC_MSG_RESULT([yes])
      SYMBOL_VISIBILITY="-fvisibility=hidden"],
      AC_MSG_RESULT([no]))
CFLAGS="$saved_CFLAGS"
AC_SUBST(SYMBOL_VISIBILITY)

dnl Generate the output
AC_CONFIG_HEADER(config.h)

AC_OUTPUT(
	libosmodsp.pc
	include/Makefile
	include/osmocom/Makefile
	include/osmocom/dsp/Makefile
	src/Makefile
	Makefile
	Doxyfile
)