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audacity/m4/audacity_checklib_libsoxr.m4
2013-01-13 20:20:52 +00:00

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dnl Add Audacity license?
dnl Please increment the serial number below whenever you alter this macro
dnl for the benefit of automatic macro update systems
# audacity_checklib_libsoxr.m4 serial 2
AC_DEFUN([AUDACITY_CHECKLIB_LIBSOXR], [
dnl These four lines are never executed, but they document the USE_LIBSOXR
dnl pre-processor directive (for configunix.h etc)
if false ; then
AC_DEFINE(USE_LIBSOXR, 1,
[Define if libsoxr support should be enabled])
fi
AC_ARG_WITH(libsoxr,
[AS_HELP_STRING([--with-libsoxr],
[use libsoxr for sample rate conversion])],
LIBSOXR_ARGUMENT=$withval,
LIBSOXR_ARGUMENT="unspecified")
dnl see if libsoxr is installed on the system (we need 0.0.5 or
dnl more recent)
PKG_CHECK_MODULES(SOXR, soxr >= 0.0.5,
soxr_available_system="yes",
soxr_available_system="no")
if test "x$soxr_available_system" = "xyes" ; then
LIBSOXR_SYSTEM_AVAILABLE="yes"
LIBSOXR_SYSTEM_LIBS=$SOXR_LIBS
LIBSOXR_SYSTEM_CXXFLAGS=$SOXR_CFLAGS
LIBSOXR_SYSTEM_CPPSYMBOLS="USE_LIBSOXR"
AC_MSG_NOTICE([Soxr libraries are available as system libraries])
else
LIBSOXR_SYSTEM_AVAILABLE="no"
AC_MSG_NOTICE([Soxr libraries are NOT available as system libraries])
fi
dnl see if libsoxr is available locally
AC_CHECK_FILE(${srcdir}/lib-src/libsoxr/src/soxr.h,
soxr_h_found="yes",
soxr_h_found="no")
if test "x$soxr_h_found" = "xyes" ; then
LIBSOXR_LOCAL_AVAILABLE="yes"
LIBSOXR_LOCAL_LIBS="libsoxr.a"
LIBSOXR_LOCAL_CXXFLAGS='-I$(top_srcdir)/lib-src/libsoxr/src'
LIBSOXR_LOCAL_CPPSYMBOLS="USE_LIBSOXR"
if test ! -f lib-src/libsoxr/Makefile ; then
LIBSOXR_LOCAL_CONFIG_SUBDIRS="lib-src/libsoxr"
# Breaks other other libraries in Audacity tree; but why is ./configure
# passing options specific to this library to other libraries?
#LIBSOXR_LOCAL_CONFIGURE_ARGS="\"-DBUILD_SHARED_LIBS=OFF -DWITH_OPENMP=OFF\""
fi
AC_MSG_NOTICE([libsoxr libraries are available in the local tree])
else
LIBSOXR_LOCAL_AVAILABLE="no"
AC_MSG_NOTICE([libsoxr libraries are NOT available in the local tree])
fi
])