kc3-lang/libmd

2019-08-22T16:55:44

build: Use <unistd.h> only if available Some target platforms do not have <unistd.h>, notably Windows when using vanilla MSVC toolchain. Note: The AC_CHECK_HEADERS([unistd.h]) is redundant with LT_INIT, but there is no guarantee for that. [guillem@hadrons.org: - Use AC_CHECK_HEADERS instead of AC_CHECK_HEADER. - Quote argument to AC_CHECK_HEADERS. ] Signed-off-by: Guillem Jover <guillem@hadrons.org>