"Carlo Marcelo Arenas Belón via GitGitGadget" <gitgitgadget@xxxxxxxxx> writes: > +# Define USE_NON_POSIX_SIGNAL if don't have support for SA_RESTART or > +# prefer using ANSI C signal() over POSIX sigaction() > + > +AC_CACHE_CHECK([whether SA_RESTART is supported], [ac_cv_siginterrupt], [ > + AC_COMPILE_IFELSE( > + [AC_LANG_PROGRAM([#include <signal.h>], [[ > + #ifdef SA_RESTART > + #endif > + siginterrupt(SIGCHLD, 1) This is curious. What is this #ifdef/#endif doing that does not have anything in it? > + ]])],[ac_cv_siginterrupt=yes],[ > + ac_cv_siginterrupt=no > + USE_NON_POSIX_SIGNAL=UnfortunatelyYes > + ] > + ) > +]) > +GIT_CONF_SUBST([USE_NON_POSIX_SIGNAL])
