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audacity/m4/audacity_checklib_lame.m4

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dnl Todo: Add Audacity / LAME license
dnl
dnl Please increment the serial number below whenever you alter this macro
dnl for the benefit of automatic macro update systems
# audacity_checklib_lame.m4 serial 1
dnl Check for a copy of lame, whoose headers we will use for the importer
AC_DEFUN([AUDACITY_CHECKLIB_LAME], [
AC_ARG_WITH(lame,
[AS_HELP_STRING([--with-lame],
[use lame for import and export support])],
LAME_ARGUMENT=$withval,
LAME_ARGUMENT="unspecified")
dnl These four lines are never executed, but they document the DISABLE_DYNAMIC_LOADING_LAME
dnl pre-processor directive (for configunix.h etc)
if false ; then
AC_DEFINE(DISABLE_DYNAMIC_LOADING_LAME, 1,
[Define if LAME should be linked at compile time])
fi
dnl See if LAME is installed in the system
AC_CHECK_LIB(mp3lame,
lame_set_VBR_q,
lib_found="yes",
lib_found="no")
AC_CHECK_HEADER(lame/lame.h,
header_found="yes",
header_found="no")
if test "x$lib_found" = "xyes" && test "x$header_found" = "xyes" ; then
LAME_SYSTEM_AVAILABLE="yes"
AC_MSG_NOTICE([LAME library is available as system library.])
if test "x$dynamic_loading" = "xno"; then
LAME_SYSTEM_LIBS="-lmp3lame"
LAME_SYSTEM_CPPSYMBOLS="DISABLE_DYNAMIC_LOADING_LAME"
fi
else
LAME_SYSTEM_AVAILABLE="no"
AC_MSG_NOTICE([LAME library is NOT available as system library.])
fi
dnl see if LAME is available in the source dir
LAME_LOCAL_AVAILABLE="yes"
])