Would someone have an idea of why there is an exit right after the ./conftest in AC_TRY_RUN/AC_RUN_IFELSE? I found nothing interesting in the ChangeLog. | # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) | # ------------------------------------------------------------ | # Compile, link, and run. | # This macro can be used during the selection of a compiler. | m4_define([_AC_RUN_IFELSE], | [m4_ifvanl([$1], [AC_LANG_CONFTEST([$1])])dnl | rm -f conftest$ac_exeext | if AC_TRY_EVAL(ac_link) && | test -s conftest$ac_exeext && (./conftest$ac_exeext; exit) 2>/dev/null; then The one right there. | m4_default([$2], :) | else | echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD | cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD | m4_ifvanl([$3], [ $3])dnl | fi | rm -f conftest$ac_exeext ifval([$1], [conftest.$ac_ext])[]dnl | ])# _AC_RUN_IFELSE
