update several macros using AC_TRY_LINK with AC_LINK_IFELSE

1 files changed, 118 insertions, 82 deletions

diff --git a/ares/acinclude.m4 b/ares/acinclude.m4
index 90e90a6e9..ce37a38ef 100644
--- a/ares/acinclude.m4
+++ b/ares/acinclude.m4
@@ -346,32 +346,35 @@ AC_DEFUN([CURL_CHECK_FUNC_GETNAMEINFO], [
   #
   AC_MSG_CHECKING([for getnameinfo])
   AC_LINK_IFELSE([
-      AC_LANG_FUNC_LINK_TRY([getnameinfo])
-    ],[
-      AC_MSG_RESULT([yes])
-      curl_cv_getnameinfo="yes"
-    ],[
-      AC_MSG_RESULT([no])
-      curl_cv_getnameinfo="no"
+    AC_LANG_FUNC_LINK_TRY([getnameinfo])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_getnameinfo="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_getnameinfo="no"
   ])
   #
   if test "$curl_cv_getnameinfo" != "yes"; then
     AC_MSG_CHECKING([deeper for getnameinfo])
-    AC_TRY_LINK([
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([
       ],[
         getnameinfo();
-      ],[
-        AC_MSG_RESULT([yes])
-        curl_cv_getnameinfo="yes"
-      ],[
-        AC_MSG_RESULT([but still no])
-        curl_cv_getnameinfo="no"
+      ])
+    ],[
+      AC_MSG_RESULT([yes])
+      curl_cv_getnameinfo="yes"
+    ],[
+      AC_MSG_RESULT([but still no])
+      curl_cv_getnameinfo="no"
     ])
   fi
   #
   if test "$curl_cv_getnameinfo" != "yes"; then
     AC_MSG_CHECKING([deeper and deeper for getnameinfo])
-    AC_TRY_LINK([
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([
 #undef inline
 #ifdef HAVE_WINDOWS_H
 #ifndef WIN32_LEAN_AND_MEAN
@@ -397,12 +400,13 @@ AC_DEFUN([CURL_CHECK_FUNC_GETNAMEINFO], [
 #endif
       ],[
         getnameinfo(0, 0, 0, 0, 0, 0, 0);
-      ],[ 
-        AC_MSG_RESULT([yes])
-        curl_cv_getnameinfo="yes"
-      ],[
-        AC_MSG_RESULT([but still no])
-        curl_cv_getnameinfo="no"
+      ])
+    ],[
+      AC_MSG_RESULT([yes])
+      curl_cv_getnameinfo="yes"
+    ],[
+      AC_MSG_RESULT([but still no])
+      curl_cv_getnameinfo="no"
     ])
   fi
   #
@@ -676,7 +680,8 @@ AC_DEFUN([CURL_CHECK_FUNC_RECV], [
   AC_CHECK_HEADERS(sys/types.h sys/socket.h)
   #
   AC_MSG_CHECKING([for recv])
-  AC_TRY_LINK([
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
 #undef inline 
 #ifdef HAVE_WINDOWS_H
 #ifndef WIN32_LEAN_AND_MEAN
@@ -700,12 +705,13 @@ AC_DEFUN([CURL_CHECK_FUNC_RECV], [
 #endif
     ],[
       recv(0, 0, 0, 0);
-    ],[ 
-      AC_MSG_RESULT([yes])
-      curl_cv_recv="yes"
-    ],[
-      AC_MSG_RESULT([no])
-      curl_cv_recv="no"
+    ])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_recv="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_recv="no"
   ])
   #
   if test "$curl_cv_recv" = "yes"; then
@@ -806,7 +812,8 @@ AC_DEFUN([CURL_CHECK_FUNC_SEND], [
   AC_CHECK_HEADERS(sys/types.h sys/socket.h)
   #
   AC_MSG_CHECKING([for send])
-  AC_TRY_LINK([
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
 #undef inline 
 #ifdef HAVE_WINDOWS_H
 #ifndef WIN32_LEAN_AND_MEAN
@@ -830,12 +837,13 @@ AC_DEFUN([CURL_CHECK_FUNC_SEND], [
 #endif
     ],[
       send(0, 0, 0, 0);
-    ],[ 
-      AC_MSG_RESULT([yes])
-      curl_cv_send="yes"
-    ],[
-      AC_MSG_RESULT([no])
-      curl_cv_send="no"
+    ])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_send="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_send="no"
   ])
   #
   if test "$curl_cv_send" = "yes"; then
@@ -1078,18 +1086,20 @@ AC_DEFUN([TYPE_SIG_ATOMIC_T], [
     yes)
       #
       AC_MSG_CHECKING([if sig_atomic_t is already defined as volatile])
-      AC_TRY_LINK([
+      AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>
 #endif
         ],[
           static volatile sig_atomic_t dummy = 0;
-        ],[ 
-          AC_MSG_RESULT([no])
-          ac_cv_sig_atomic_t_volatile="no"
-        ],[
-          AC_MSG_RESULT([yes])
-          ac_cv_sig_atomic_t_volatile="yes"
+        ])
+      ],[
+        AC_MSG_RESULT([no])
+        ac_cv_sig_atomic_t_volatile="no"
+      ],[
+        AC_MSG_RESULT([yes])
+        ac_cv_sig_atomic_t_volatile="yes"
       ])
       #
       if test "$ac_cv_sig_atomic_t_volatile" = "yes"; then
@@ -1255,7 +1265,8 @@ AC_DEFUN([TYPE_IN_ADDR_T],
       [
          curl_cv_in_addr_t_equiv=
          for t in "unsigned long" int size_t unsigned long; do
-            AC_TRY_COMPILE([
+            AC_LINK_IFELSE([
+              AC_LANG_PROGRAM([
 #undef inline
 #ifdef HAVE_WINDOWS_H
 #ifndef WIN32_LEAN_AND_MEAN
@@ -1283,11 +1294,12 @@ AC_DEFUN([TYPE_IN_ADDR_T],
 #include <arpa/inet.h>
 #endif
 #endif
+              ],[
+                $t data = inet_addr ("1.2.3.4");
+              ])
             ],[
-               $t data = inet_addr ("1.2.3.4");
-            ],[
-               curl_cv_in_addr_t_equiv="$t"
-               break
+              curl_cv_in_addr_t_equiv="$t"
+              break
             ])
          done
 
@@ -1408,8 +1420,8 @@ AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [
           (void)clock_gettime(CLOCK_MONOTONIC, &ts);
         ])
       ],[
-         curl_cv_gclk_LIBS="$x_xlibs"
-         break
+        curl_cv_gclk_LIBS="$x_xlibs"
+        break
       ])
     done
     #
@@ -1647,50 +1659,74 @@ AC_DEFUN([CARES_CHECK_CONSTANT], [
 ])
 
 
-dnl This macro determines how many parameters getservbyport_r takes
+dnl CARES_CHECK_GETSERVBYPORT_R
+dnl -------------------------------------------------
+dnl Test if the getservbyport_r function is available,
+dnl and find out how many parameters it takes.
+
 AC_DEFUN([CARES_CHECK_GETSERVBYPORT_R], [
   AC_MSG_CHECKING([how many arguments getservbyport_r takes])
-  AC_TRY_LINK(
-    [#include <netdb.h>],
-    [
+  ac_func_getservbyport_r="unknown"
+
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
+#include <netdb.h>
+    ],[
       int p1, p5;
       char *p2, p4[4096];
       struct servent *p3, *p6;
       getservbyport_r(p1, p2, p3, p4, p5, &p6);
-    ], ac_func_getservbyport_r=6,
-    [AC_TRY_LINK(
-      [#include <netdb.h>],
-      [
+    ])
+  ],[
+    ac_func_getservbyport_r="6"
+  ])
+
+  if test "$ac_func_getservbyport_r" = "unknown"; then
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([
+#include <netdb.h>
+      ],[
         int p1, p5;
         char *p2, p4[4096];
         struct servent *p3;
         getservbyport_r(p1, p2, p3, p4, p5);
-      ], ac_func_getservbyport_r=5,
-      [AC_TRY_LINK(
-        [#include <netdb.h>],
-        [
-          int p1;
-          char *p2;
-          struct servent *p3;
-          struct servent_data p4;
-          getservbyport_r(p1, p2, p3, &p4);
-        ], ac_func_getservbyport_r=4, ac_func_getservbyport_r=0
-      )]
-    )]
-  )
-if test $ac_func_getservbyport_r != "0" ; then
-  AC_MSG_RESULT($ac_func_getservbyport_r)
-  AC_DEFINE(HAVE_GETSERVBYPORT_R, 1, [Specifies whether getservbyport_r is present])
-  AC_DEFINE_UNQUOTED(GETSERVBYPORT_R_ARGS, $ac_func_getservbyport_r, [Specifies the number of arguments to 
-getservbyport_r])
-  if test $ac_func_getservbyport_r = "4" ; then
-   AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, sizeof(struct servent_data), [Specifies the size of the buffer to pass to 
-getservbyport_r])
+      ])
+    ],[
+      ac_func_getservbyport_r="5"
+    ])
+  fi
+
+  if test "$ac_func_getservbyport_r" = "unknown"; then
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([
+#include <netdb.h>
+      ],[
+        int p1;
+        char *p2;
+        struct servent *p3;
+        struct servent_data p4;
+        getservbyport_r(p1, p2, p3, &p4);
+      ])
+    ],[
+      ac_func_getservbyport_r="4"
+    ])
+  fi
+
+  if test "$ac_func_getservbyport_r" = "unknown"; then
+    AC_MSG_RESULT([not found])
   else
-   AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, 4096, [Specifies the size of the buffer to pass to getservbyport_r])
+    AC_MSG_RESULT($ac_func_getservbyport_r)
+    AC_DEFINE(HAVE_GETSERVBYPORT_R, 1,
+      [Specifies whether getservbyport_r is present])
+    AC_DEFINE_UNQUOTED(GETSERVBYPORT_R_ARGS, $ac_func_getservbyport_r,
+      [Specifies the number of arguments to getservbyport_r])
+    if test "$ac_func_getservbyport_r" = "4" ; then
+      AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, sizeof(struct servent_data),
+        [Specifies the size of the buffer to pass to getservbyport_r])
+    else
+      AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, 4096,
+        [Specifies the size of the buffer to pass to getservbyport_r])
+    fi
   fi
-else
-  AC_MSG_RESULT([not found])
-fi
 ])