tinc/m4/lzo.m4

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2022-04-22 20:57:01 +00:00
dnl Check to find the lzo headers/libraries
AC_DEFUN([tinc_LZO],
[
AC_ARG_ENABLE([lzo],
AS_HELP_STRING([--disable-lzo], [disable lzo compression support]))
AS_IF([test "x$enable_lzo" != "xno"], [
AC_DEFINE(HAVE_LZO, 1, [enable lzo compression support])
AC_ARG_WITH(lzo,
AS_HELP_STRING([--with-lzo=DIR], [lzo base directory, or:]),
[lzo="$withval"
CPPFLAGS="$CPPFLAGS -I$withval/include"
LDFLAGS="$LDFLAGS -L$withval/lib"]
)
AC_ARG_WITH(lzo-include,
AS_HELP_STRING([--with-lzo-include=DIR], [lzo headers directory]),
[lzo_include="$withval"
CPPFLAGS="$CPPFLAGS -I$withval"]
)
AC_ARG_WITH(lzo-lib,
AS_HELP_STRING([--with-lzo-lib=DIR], [lzo library directory]),
[lzo_lib="$withval"
LDFLAGS="$LDFLAGS -L$withval"]
)
AC_CHECK_LIB(lzo2, lzo1x_1_compress,
[LIBS="$LIBS -llzo2"],
[AC_CHECK_LIB(lzo, lzo1x_1_compress,
[LIBS="$LIBS -llzo"],
[AC_MSG_ERROR("lzo libraries not found."); break]
)]
)
AC_CHECK_HEADERS(lzo/lzo1x.h,
[AC_DEFINE(LZO1X_H, [<lzo/lzo1x.h>], [Location of lzo1x.h])],
[AC_CHECK_HEADERS(lzo2/lzo1x.h,
[AC_DEFINE(LZO1X_H, [<lzo2/lzo1x.h>], [Location of lzo1x.h])],
[AC_CHECK_HEADERS(lzo1x.h,
[AC_DEFINE(LZO1X_H, [<lzo1x.h>], [Location of lzo1x.h])],
[AC_MSG_ERROR("lzo header files not found."); break]
)]
)]
)
])
])