diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/curl-functions.m4 | 300 |
1 files changed, 299 insertions, 1 deletions
diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4 index 4f4b99530..aadebc88a 100644 --- a/m4/curl-functions.m4 +++ b/m4/curl-functions.m4 @@ -22,7 +22,7 @@ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. -# serial 22 +# serial 24 dnl CURL_INCLUDES_ARPA_INET @@ -73,6 +73,27 @@ curl_includes_netdb="\ ]) +dnl CURL_INCLUDES_SETJMP +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when setjmp.h is to be included. + +AC_DEFUN([CURL_INCLUDES_SETJMP], [ +curl_includes_setjmp="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifdef HAVE_SETJMP_H +# include <setjmp.h> +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h setjmp.h, + [], [], [$curl_includes_setjmp]) +]) + + dnl CURL_INCLUDES_SIGNAL dnl ------------------------------------------------- dnl Set up variable with list of headers that must be @@ -1787,6 +1808,283 @@ AC_DEFUN([CURL_CHECK_FUNC_SIGACTION], [ ]) +dnl CURL_CHECK_FUNC_SIGINTERRUPT +dnl ------------------------------------------------- +dnl Verify if siginterrupt is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable curl_disallow_siginterrupt, then +dnl HAVE_SIGINTERRUPT will be defined. + +AC_DEFUN([CURL_CHECK_FUNC_SIGINTERRUPT], [ + AC_REQUIRE([CURL_INCLUDES_SIGNAL])dnl + # + tst_links_siginterrupt="unknown" + tst_proto_siginterrupt="unknown" + tst_compi_siginterrupt="unknown" + tst_allow_siginterrupt="unknown" + # + AC_MSG_CHECKING([if siginterrupt can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([siginterrupt]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_siginterrupt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_siginterrupt="no" + ]) + # + if test "$tst_links_siginterrupt" = "yes"; then + AC_MSG_CHECKING([if siginterrupt is prototyped]) + AC_EGREP_CPP([siginterrupt],[ + $curl_includes_signal + ],[ + AC_MSG_RESULT([yes]) + tst_proto_siginterrupt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_siginterrupt="no" + ]) + fi + # + if test "$tst_proto_siginterrupt" = "yes"; then + AC_MSG_CHECKING([if siginterrupt is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_signal + ]],[[ + if(0 != siginterrupt(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_siginterrupt="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_siginterrupt="no" + ]) + fi + # + if test "$tst_compi_siginterrupt" = "yes"; then + AC_MSG_CHECKING([if siginterrupt usage allowed]) + if test "x$curl_disallow_siginterrupt" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_siginterrupt="yes" + else + AC_MSG_RESULT([no]) + tst_allow_siginterrupt="no" + fi + fi + # + AC_MSG_CHECKING([if siginterrupt might be used]) + if test "$tst_links_siginterrupt" = "yes" && + test "$tst_proto_siginterrupt" = "yes" && + test "$tst_compi_siginterrupt" = "yes" && + test "$tst_allow_siginterrupt" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SIGINTERRUPT, 1, + [Define to 1 if you have the siginterrupt function.]) + ac_cv_func_siginterrupt="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_siginterrupt="no" + fi +]) + + +dnl CURL_CHECK_FUNC_SIGNAL +dnl ------------------------------------------------- +dnl Verify if signal is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable curl_disallow_signal, then +dnl HAVE_SIGNAL will be defined. + +AC_DEFUN([CURL_CHECK_FUNC_SIGNAL], [ + AC_REQUIRE([CURL_INCLUDES_SIGNAL])dnl + # + tst_links_signal="unknown" + tst_proto_signal="unknown" + tst_compi_signal="unknown" + tst_allow_signal="unknown" + # + AC_MSG_CHECKING([if signal can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([signal]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_signal="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_signal="no" + ]) + # + if test "$tst_links_signal" = "yes"; then + AC_MSG_CHECKING([if signal is prototyped]) + AC_EGREP_CPP([signal],[ + $curl_includes_signal + ],[ + AC_MSG_RESULT([yes]) + tst_proto_signal="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_signal="no" + ]) + fi + # + if test "$tst_proto_signal" = "yes"; then + AC_MSG_CHECKING([if signal is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_signal + ]],[[ + if(0 != signal(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_signal="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_signal="no" + ]) + fi + # + if test "$tst_compi_signal" = "yes"; then + AC_MSG_CHECKING([if signal usage allowed]) + if test "x$curl_disallow_signal" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_signal="yes" + else + AC_MSG_RESULT([no]) + tst_allow_signal="no" + fi + fi + # + AC_MSG_CHECKING([if signal might be used]) + if test "$tst_links_signal" = "yes" && + test "$tst_proto_signal" = "yes" && + test "$tst_compi_signal" = "yes" && + test "$tst_allow_signal" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SIGNAL, 1, + [Define to 1 if you have the signal function.]) + ac_cv_func_signal="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_signal="no" + fi +]) + + +dnl CURL_CHECK_FUNC_SIGSETJMP +dnl ------------------------------------------------- +dnl Verify if sigsetjmp is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable curl_disallow_sigsetjmp, then +dnl HAVE_SIGSETJMP will be defined. + +AC_DEFUN([CURL_CHECK_FUNC_SIGSETJMP], [ + AC_REQUIRE([CURL_INCLUDES_SETJMP])dnl + # + tst_links_sigsetjmp="unknown" + tst_macro_sigsetjmp="unknown" + tst_proto_sigsetjmp="unknown" + tst_compi_sigsetjmp="unknown" + tst_allow_sigsetjmp="unknown" + # + AC_MSG_CHECKING([if sigsetjmp can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([sigsetjmp]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_sigsetjmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_sigsetjmp="no" + ]) + # + if test "$tst_links_sigsetjmp" = "no"; then + AC_MSG_CHECKING([if sigsetjmp seems a macro]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_setjmp + ]],[[ + sigjmp_buf env; + if(0 != sigsetjmp(env, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_macro_sigsetjmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_macro_sigsetjmp="no" + ]) + fi + # + if test "$tst_links_sigsetjmp" = "yes"; then + AC_MSG_CHECKING([if sigsetjmp is prototyped]) + AC_EGREP_CPP([sigsetjmp],[ + $curl_includes_setjmp + ],[ + AC_MSG_RESULT([yes]) + tst_proto_sigsetjmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_sigsetjmp="no" + ]) + fi + # + if test "$tst_proto_sigsetjmp" = "yes" || + test "$tst_macro_sigsetjmp" = "yes"; then + AC_MSG_CHECKING([if sigsetjmp is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_setjmp + ]],[[ + sigjmp_buf env; + if(0 != sigsetjmp(env, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_sigsetjmp="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_sigsetjmp="no" + ]) + fi + # + if test "$tst_compi_sigsetjmp" = "yes"; then + AC_MSG_CHECKING([if sigsetjmp usage allowed]) + if test "x$curl_disallow_sigsetjmp" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_sigsetjmp="yes" + else + AC_MSG_RESULT([no]) + tst_allow_sigsetjmp="no" + fi + fi + # + AC_MSG_CHECKING([if sigsetjmp might be used]) + if (test "$tst_proto_sigsetjmp" = "yes" || + test "$tst_macro_sigsetjmp" = "yes") && + test "$tst_compi_sigsetjmp" = "yes" && + test "$tst_allow_sigsetjmp" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_SIGSETJMP, 1, + [Define to 1 if you have the sigsetjmp function or macro.]) + ac_cv_func_sigsetjmp="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_sigsetjmp="no" + fi +]) + + dnl CURL_CHECK_FUNC_STRCASECMP dnl ------------------------------------------------- dnl Verify if strcasecmp is available, prototyped, and |