Albert Chin's neat configure/package fixes

1 files changed, 325 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 000000000..53abc1471
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,325 @@
+dnl Check for socklen_t: historically on BSD it is an int, and in
+dnl POSIX 1g it is a type of its own, but some platforms use different
+dnl types for the argument to getsockopt, getpeername, etc.  So we
+dnl have to test to find something that will work.
+AC_DEFUN([TYPE_SOCKLEN_T],
+[
+   AC_CHECK_TYPE([socklen_t], ,[
+      AC_MSG_CHECKING([for socklen_t equivalent])
+      AC_CACHE_VAL([curl_cv_socklen_t_equiv],
+      [
+         # Systems have either "struct sockaddr *" or
+         # "void *" as the second argument to getpeername
+         curl_cv_socklen_t_equiv=
+         for arg2 in "struct sockaddr" void; do
+            for t in int size_t unsigned long "unsigned long"; do
+               AC_TRY_COMPILE([
+                  #include <sys/types.h>
+                  #include <sys/socket.h>
+
+                  int getpeername (int, $arg2 *, $t *);
+               ],[
+                  $t len;
+                  getpeername(0,0,&len);
+               ],[
+                  curl_cv_socklen_t_equiv="$t"
+                  break
+               ])
+            done
+         done
+
+         if test "x$curl_cv_socklen_t_equiv" = x; then
+            AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
+         fi
+      ])
+      AC_MSG_RESULT($curl_cv_socklen_t_equiv)
+      AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv,
+			[type to use in place of socklen_t if not defined])],
+      [#include <sys/types.h>
+#include <sys/socket.h>])
+])
+
+dnl ************************************************************
+dnl check for "localhost", if it doesn't exist, we can't do the
+dnl gethostbyname_r tests!
+dnl 
+
+AC_DEFUN(CURL_CHECK_WORKING_RESOLVER,[
+AC_MSG_CHECKING([if "localhost" resolves])
+AC_TRY_RUN([
+#include <string.h>
+#include <sys/types.h>
+#include <netdb.h>
+
+int
+main () {
+struct hostent *h;
+h = gethostbyname("localhost");
+exit (h == NULL ? 1 : 0); }],[
+      AC_MSG_RESULT(yes)],[
+      AC_MSG_RESULT(no)
+      AC_MSG_ERROR([can't figure out gethostbyname_r() since localhost doesn't resolve])
+
+      ]
+)
+])
+
+dnl ************************************************************
+dnl check for working getaddrinfo()
+dnl
+AC_DEFUN(CURL_CHECK_WORKING_GETADDRINFO,[
+  AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[
+  AC_TRY_RUN( [
+#include <netdb.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+void main(void) {
+    struct addrinfo hints, *ai;
+    int error;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    error = getaddrinfo("127.0.0.1", "8080", &hints, &ai);
+    if (error) {
+        exit(1);
+    }
+    else {
+        exit(0);
+    }
+}
+],[
+  ac_cv_working_getaddrinfo="yes"
+],[
+  ac_cv_working_getaddrinfo="no"
+],[
+  ac_cv_working_getaddrinfo="yes"
+])])
+if test "$ac_cv_working_getaddrinfo" = "yes"; then
+  AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works])
+  AC_DEFINE(ENABLE_IPV6, 1, [Define if you want to enable IPv6 support])
+
+  IPV6_ENABLED=1
+  AC_SUBST(IPV6_ENABLED)
+fi
+])
+
+
+AC_DEFUN(CURL_CHECK_LOCALTIME_R,
+[
+  dnl check for a few thread-safe functions
+  AC_CHECK_FUNCS(localtime_r,[
+    AC_MSG_CHECKING(whether localtime_r is declared)
+    AC_EGREP_CPP(localtime_r,[
+#include <time.h>],[
+      AC_MSG_RESULT(yes)],[
+      AC_MSG_RESULT(no)
+      AC_MSG_CHECKING(whether localtime_r with -D_REENTRANT is declared)
+      AC_EGREP_CPP(localtime_r,[
+#define _REENTRANT
+#include <time.h>],[
+	AC_DEFINE(NEED_REENTRANT)
+	AC_MSG_RESULT(yes)],
+	AC_MSG_RESULT(no))])])
+])
+
+AC_DEFUN(CURL_CHECK_INET_NTOA_R,
+[
+  dnl determine if function definition for inet_ntoa_r exists.
+  AC_CHECK_FUNCS(inet_ntoa_r,[
+    AC_MSG_CHECKING(whether inet_ntoa_r is declared)
+    AC_EGREP_CPP(inet_ntoa_r,[
+#include <arpa/inet.h>],[
+      AC_DEFINE(HAVE_INET_NTOA_R_DECL)
+      AC_MSG_RESULT(yes)],[
+      AC_MSG_RESULT(no)
+      AC_MSG_CHECKING(whether inet_ntoa_r with -D_REENTRANT is declared)
+      AC_EGREP_CPP(inet_ntoa_r,[
+#define _REENTRANT
+#include <arpa/inet.h>],[
+	AC_DEFINE(HAVE_INET_NTOA_R_DECL)
+	AC_DEFINE(NEED_REENTRANT)
+	AC_MSG_RESULT(yes)],
+	AC_MSG_RESULT(no))])])
+
+])
+
+AC_DEFUN(CURL_CHECK_GETHOSTBYADDR_R,
+[
+  dnl check for number of arguments to gethostbyaddr_r. it might take
+  dnl either 5, 7, or 8 arguments.
+  AC_CHECK_FUNCS(gethostbyaddr_r,[
+    AC_MSG_CHECKING(if gethostbyaddr_r takes 5 arguments)
+    AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <netdb.h>],[
+char * address;
+int length;
+int type;
+struct hostent h;
+struct hostent_data hdata;
+int rc;
+rc = gethostbyaddr_r(address, length, type, &h, &hdata);],[
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_GETHOSTBYADDR_R_5)
+      ac_cv_gethostbyaddr_args=5],[
+      AC_MSG_RESULT(no)
+      AC_MSG_CHECKING(if gethostbyaddr_r with -D_REENTRANT takes 5 arguments)
+      AC_TRY_COMPILE([
+#define _REENTRANT
+#include <sys/types.h>
+#include <netdb.h>],[
+char * address;
+int length;
+int type;
+struct hostent h;
+struct hostent_data hdata;
+int rc;
+rc = gethostbyaddr_r(address, length, type, &h, &hdata);],[
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_GETHOSTBYADDR_R_5)
+	AC_DEFINE(NEED_REENTRANT)
+	ac_cv_gethostbyaddr_args=5],[
+	AC_MSG_RESULT(no)
+	AC_MSG_CHECKING(if gethostbyaddr_r takes 7 arguments)
+	AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <netdb.h>],[
+char * address;
+int length;
+int type;
+struct hostent h;
+char buffer[8192];
+int h_errnop;
+struct hostent * hp;
+
+hp = gethostbyaddr_r(address, length, type, &h,
+                     buffer, 8192, &h_errnop);],[
+	  AC_MSG_RESULT(yes)
+	  AC_DEFINE(HAVE_GETHOSTBYADDR_R_7)
+	  ac_cv_gethostbyaddr_args=7],[
+	  AC_MSG_RESULT(no)
+	  AC_MSG_CHECKING(if gethostbyaddr_r takes 8 arguments)
+	  AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <netdb.h>],[
+char * address;
+int length;
+int type;
+struct hostent h;
+char buffer[8192];
+int h_errnop;
+struct hostent * hp;
+int rc;
+
+rc = gethostbyaddr_r(address, length, type, &h,
+                     buffer, 8192, &hp, &h_errnop);],[
+	    AC_MSG_RESULT(yes)
+	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8)
+	    ac_cv_gethostbyaddr_args=8],[
+	    AC_MSG_RESULT(no)
+	    have_missing_r_funcs="$have_missing_r_funcs gethostbyaddr_r"])])])])])
+
+
+])
+
+AC_DEFUN(CURL_CHECK_GETHOSTBYNAME_R,
+[
+  dnl check for number of arguments to gethostbyname_r. it might take
+  dnl either 3, 5, or 6 arguments.
+  AC_CHECK_FUNCS(gethostbyname_r,[
+    AC_MSG_CHECKING(if gethostbyname_r takes 3 arguments)
+    AC_TRY_RUN([
+#include <string.h>
+#include <sys/types.h>
+#include <netdb.h>
+
+int
+main () {
+struct hostent h;
+struct hostent_data hdata;
+char *name = "localhost";
+int rc;
+memset(&h, 0, sizeof(struct hostent));
+memset(&hdata, 0, sizeof(struct hostent_data));
+rc = gethostbyname_r(name, &h, &hdata);
+exit (rc != 0 ? 1 : 0); }],[
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
+      ac_cv_gethostbyname_args=3],[
+      AC_MSG_RESULT(no)
+      AC_MSG_CHECKING(if gethostbyname_r with -D_REENTRANT takes 3 arguments)
+      AC_TRY_RUN([
+#define _REENTRANT
+
+#include <string.h>
+#include <sys/types.h>
+#include <netdb.h>
+
+int
+main () {
+struct hostent h;
+struct hostent_data hdata;
+char *name = "localhost";
+int rc;
+memset(&h, 0, sizeof(struct hostent));
+memset(&hdata, 0, sizeof(struct hostent_data));
+rc = gethostbyname_r(name, &h, &hdata);
+exit (rc != 0 ? 1 : 0); }],[
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
+	AC_DEFINE(NEED_REENTRANT)
+	ac_cv_gethostbyname_args=3],[
+	AC_MSG_RESULT(no)
+	AC_MSG_CHECKING(if gethostbyname_r takes 5 arguments)
+	AC_TRY_RUN([
+#include <sys/types.h>
+#include <netdb.h>
+
+int
+main () {
+struct hostent *hp;
+struct hostent h;
+char *name = "localhost";
+char buffer[8192];
+int h_errno;
+hp = gethostbyname_r(name, &h, buffer, 8192, &h_errno);
+exit (hp == NULL ? 1 : 0); }],[
+	  AC_MSG_RESULT(yes)
+	  AC_DEFINE(HAVE_GETHOSTBYNAME_R_5)
+          ac_cv_gethostbyname_args=5],[
+	  AC_MSG_RESULT(no)
+	  AC_MSG_CHECKING(if gethostbyname_r takes 6 arguments)
+	  AC_TRY_RUN([
+#include <sys/types.h>
+#include <netdb.h>
+
+int
+main () {
+struct hostent h;
+struct hostent *hp;
+char *name = "localhost";
+char buf[8192];
+int rc;
+int h_errno;
+rc = gethostbyname_r(name, &h, buf, 8192, &hp, &h_errno);
+exit (rc != 0 ? 1 : 0); }],[
+	    AC_MSG_RESULT(yes)
+	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6)
+            ac_cv_gethostbyname_args=6],[
+	    AC_MSG_RESULT(no)
+	    have_missing_r_funcs="$have_missing_r_funcs gethostbyname_r"],
+	    [ac_cv_gethostbyname_args=0])],
+	  [ac_cv_gethostbyname_args=0])],
+	[ac_cv_gethostbyname_args=0])],
+      [ac_cv_gethostbyname_args=0])])
+
+if test "$ac_cv_func_gethostbyname_r" = "yes"; then
+  if test "$ac_cv_gethostbyname_args" = "0"; then
+    dnl there's a gethostbyname_r() function, but we don't know how
+    dnl many arguments it wants!
+    AC_MSG_ERROR([couldn't figure out how to use gethostbyname_r()])
+  fi
+fi
+])