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audacity/m4/audacity_checklib_libsamplerate.m4

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dnl Add Audacity / libsamplerate license?
dnl Please increment the serial number below whenever you alter this macro
dnl for the benefit of automatic macro update systems
# audacity_checklib_libsamplerate.m4 serial 1
AC_DEFUN([AUDACITY_CHECKLIB_LIBSAMPLERATE], [
AC_ARG_WITH(libsamplerate,
[AS_HELP_STRING([--with-libsamplerate],
[use libsamplerate instead of libresample for sample rate conversion. Do not use in conjunction with VST plug-in support!])],
LIBSAMPLERATE_ARGUMENT=$withval,
LIBSAMPLERATE_ARGUMENT="unspecified")
if false ; then
AC_DEFINE(USE_LIBSAMPLERATE, 1,
[Define if libsamplerate support should be enabled])
fi
dnl see if libsamplerate is installed on the system
PKG_CHECK_MODULES(SAMPLERATE, samplerate >= 0.1.2,
samplerate_available_system="yes",
samplerate_available_system="no")
if test "x$samplerate_available_system" = "xyes" ; then
LIBSAMPLERATE_SYSTEM_AVAILABLE="yes"
LIBSAMPLERATE_SYSTEM_LIBS=$SAMPLERATE_LIBS
LIBSAMPLERATE_SYSTEM_CXXFLAGS=$SAMPLERATE_CFLAGS
LIBSAMPLERATE_SYSTEM_CPPSYMBOLS="USE_LIBSAMPLERATE"
AC_MSG_NOTICE([Libsamplerate libraries are available as system libraries])
else
LIBSAMPLERATE_SYSTEM_AVAILABLE="no"
AC_MSG_NOTICE([Libsamplerate libraries are NOT available as system libraries])
fi
dnl see if libsamplerate is available in the local tree
AC_CHECK_FILE(${srcdir}/lib-src/libsamplerate/src/samplerate.h,
samplerate_h_found="yes",
samplerate_h_found="no")
if test "x$samplerate_h_found" = "xyes" ; then
LIBSAMPLERATE_LOCAL_AVAILABLE="yes"
LIBSAMPLERATE_LOCAL_LIBS="libsamplerate.a"
LIBSAMPLERATE_LOCAL_CXXFLAGS='-I$(top_srcdir)/lib-src/libsamplerate/src'
LIBSAMPLERATE_LOCAL_CPPSYMBOLS="USE_LIBSAMPLERATE"
if test ! -f lib-src/libsamplerate/Makefile ; then
LIBSAMPLERATE_LOCAL_CONFIG_SUBDIRS="lib-src/libsamplerate"
fi
AC_MSG_NOTICE([libsamplerate libraries are available in the local tree])
else
LIBSAMPLERATE_LOCAL_AVAILABLE="no"
AC_MSG_NOTICE([libsamplerate libraries are NOT available in the local tree])
fi
])