Replace obsolete AC_TRY_FOO with AC_FOO_IFELSE

Autoconf 2.50 released in 2001 made several macros obsolete including
the AC_TRY_RUN, AC_TRY_COMPILE and AC_TRY_LINK:
http://git.savannah.gnu.org/cgit/autoconf.git/tree/ChangeLog.2

These macros should be replaced with the current AC_FOO_IFELSE instead:
- AC_TRY_RUN with AC_RUN_IFELSE and AC_LANG_SOURCE
- AC_TRY_LINK with AC_LINK_IFELSE and AC_LANG_PROGRAM
- AC_TRY_COMPILE with AC_COMPILE_IFELSE and AC_LANG_PROGRAM

PHP 5.4 to 7.1 require Autoconf 2.59+ version, PHP 7.2 and above require
2.64+ version, and the PHP 7.2 phpize script requires 2.59+ version which
are all greater than above mentioned 2.50 version therefore systems
should be well supported by now.

This patch was created with the help of autoupdate script:
autoupdate <file>

Reference docs:
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html
- https://www.gnu.org/software/autoconf/manual/autoconf-2.59/autoconf.pdf

1 files changed, 3 insertions, 4 deletions

diff --git a/ext/recode/config.m4 b/ext/recode/config.m4
index 280ed26b33..bb627d4a7a 100644
--- a/ext/recode/config.m4
+++ b/ext/recode/config.m4
@@ -37,12 +37,11 @@ if test "$PHP_RECODE" != "no"; then
     old_LIBS=$LIBS
     LDFLAGS="$LDFLAGS -L$RECODE_DIR/$RECODE_LIB"
     LIBS="$LIBS -lrecode"
-    AC_TRY_LINK(
-    [
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 char *program_name;
-    ],[
+    ]],[[
 recode_format_table();
-    ],[
+    ]])],[
       PHP_ADD_LIBRARY_DEFER_WITH_PATH(recode, $RECODE_DIR/$RECODE_LIB, RECODE_SHARED_LIBADD)
       AC_DEFINE(HAVE_BROKEN_RECODE, 1, [Whether we have librecode 3.5])
     ],[