AC_INIT AC_CONFIG_SRCDIR([lzfP.h]) AC_CONFIG_HEADER(config.h) AC_GNU_SOURCE AC_SYS_LARGEFILE AC_PROG_CC AC_PROG_RANLIB AC_PROG_INSTALL AC_HEADER_STDC AC_CHECK_SIZEOF(short, 2) AC_CHECK_SIZEOF(int, 4) AC_CHECK_SIZEOF(long, 4) AC_C_CONST AC_C_INLINE AC_CHECK_HEADERS(getopt.h) AC_CHECK_FUNCS(getopt_long) if test "$GCC" = yes; then CFLAGS="$CFLAGS -O3 -funroll-all-loops" else AC_MSG_RESULT(no gcc) fi AC_CONFIG_FILES([Makefile]) AC_OUTPUT