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m4/ax_func_getaddrinfo.m4
70 строк
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Todd C. Miller
Replace `foo` in descriptions with 'foo'
16 ноя 2022, 20:10
16 ноя 2022, 20:10
03559d0
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# # SYNOPSIS # # AX_FUNC_GETADDRINFO # # DESCRIPTION # # Checks for the getaddrinfo function in the standard C library, # as well as the socket and inet libraries, if they are present. # If extra libraries are required, they are added to LIBS. # If no getaddrinfo function is found, it is added to LIBOBJS. # Note: Tru64 UNIX contains two versions of getaddrinfo and we must # include netdb.h to get the proper definition. # # LICENSE # # Placed in the public domain by Todd C. Miller on November 20, 2013. # AC_DEFUN([AX_FUNC_GETADDRINFO], [AC_MSG_CHECKING(for getaddrinfo) AC_CACHE_VAL(ax_cv_func_getaddrinfo, [AC_LINK_IFELSE([AC_LANG_SOURCE([[#include <sys/types.h> #include <sys/socket.h> #include <netdb.h> int main() { return getaddrinfo(0, 0, 0, 0); }]])], [ax_cv_func_getaddrinfo=yes], [ax_cv_func_getaddrinfo=no])]) AC_MSG_RESULT([$ax_cv_func_getaddrinfo]) if test X"$ax_cv_func_getaddrinfo" = X"yes"; then AC_DEFINE(HAVE_GETADDRINFO, 1, [Define to 1 if you have the 'getaddrinfo' function.]) else # Not found in libc, check libsocket and libinet _found=no for _libs in "-lsocket" "-linet" "-lsocket -lnsl"; do _cv="ax_cv_lib_getaddrinfo`echo \"$_libs\"|sed -e 's/-l/_/g' -e 's/ *//g'`" AC_MSG_CHECKING([for getaddrinfo in $_libs]) AC_CACHE_VAL([$_cv], [ _nlibs= for _l in $_libs; do case "$LIBS" in *"$_l"*) ;; *) _nlibs="$_nlibs $_l";; esac done _libs="${_nlibs# }" if test -z "$_libs"; then # No new libs to check eval $_cv=no else AX_FUNC_GETADDRINFO_OLIBS="$LIBS" LIBS="$LIBS $_libs" AC_LINK_IFELSE([AC_LANG_SOURCE([[#include <sys/types.h> #include <sys/socket.h> #include <netdb.h> int main() { return getaddrinfo(0, 0, 0, 0); }]])], [eval $_cv=yes], [eval $_cv=no]) LIBS="$AX_FUNC_GETADDRINFO_OLIBS" fi ]) if eval test \$$_cv = "yes"; then AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_GETADDRINFO) test -n "$_libs" && LIBS="$LIBS $_libs" break fi AC_MSG_RESULT([no]) done if eval test \$$_cv != "yes"; then AC_LIBOBJ(getaddrinfo) fi fi ])