Don't assume libmysqlclient library name

By simply dropping the additional checks, in line with the general
guideline of trusting the output of config scripts (this should
be migrated to pkg-config though).

Also drop the code for manually adding -z if mysql_config does not
-- that's not our problem.

Author: nikic

ext/mysqli/config.m4

@@ -47,34 +47,18 @@ if test "$PHP_MYSQLI" = "yes" || test "$PHP_MYSQLI" = "mysqlnd"; then
 elif test "$PHP_MYSQLI" != "no"; then
 
   MYSQL_CONFIG=$PHP_MYSQLI
-  MYSQL_LIB_NAME='mysqlclient'
-  MYSQL_LIB_CFG='--libs'
 
-  if test -x "$MYSQL_CONFIG" && $MYSQL_CONFIG $MYSQL_LIB_CFG > /dev/null 2>&1; then
+  if test -x "$MYSQL_CONFIG" && $MYSQL_CONFIG --libs > /dev/null 2>&1; then
     MYSQLI_INCLINE=`$MYSQL_CONFIG --cflags | $SED -e "s/'//g"`
-    MYSQLI_LIBLINE=`$MYSQL_CONFIG $MYSQL_LIB_CFG | $SED -e "s/'//g"`
+    MYSQLI_LIBLINE=`$MYSQL_CONFIG --libs | $SED -e "s/'//g"`
   else
     AC_MSG_RESULT([mysql_config not found])
     AC_MSG_ERROR([Please reinstall the mysql distribution])
   fi
 
-  dnl
-  dnl Check the library
-  dnl
-  PHP_CHECK_LIBRARY($MYSQL_LIB_NAME, mysql_set_server_option,
-  [
-    PHP_EVAL_INCLINE($MYSQLI_INCLINE)
-    PHP_EVAL_LIBLINE($MYSQLI_LIBLINE, MYSQLI_SHARED_LIBADD)
-    AC_DEFINE(HAVE_MYSQLILIB, 1, [ ])
-    PHP_CHECK_LIBRARY($MYSQL_LIB_NAME, mysql_set_character_set,
-    [ ],[
-      AC_MSG_ERROR([MySQLI doesn't support versions < 4.1.13 (for MySQL 4.1.x) and < 5.0.7 for (MySQL 5.0.x) anymore. Please update your libraries.])
-    ],[$MYSQLI_LIBLINE])
-  ],[
-    AC_MSG_ERROR([wrong mysql library version or lib not found. Check config.log for more information.])
-  ],[
-    $MYSQLI_LIBLINE
-  ])
+  PHP_EVAL_INCLINE($MYSQLI_INCLINE)
+  PHP_EVAL_LIBLINE($MYSQLI_LIBLINE, MYSQLI_SHARED_LIBADD)
+  AC_DEFINE(HAVE_MYSQLILIB, 1, [ ])
 fi
 
 dnl Build extension

ext/pdo_mysql/config.m4

@@ -58,7 +58,6 @@ if test "$PHP_PDO_MYSQL" != "no"; then
       if test "x$SED" = "x"; then
         AC_PATH_PROG(SED, sed)
       fi
-      PDO_MYSQL_LIBNAME=mysqlclient
       PDO_MYSQL_LIBS=`$PDO_MYSQL_CONFIG --libs | $SED -e "s/'//g"`
       PDO_MYSQL_INCLUDE=`$PDO_MYSQL_CONFIG --cflags | $SED -e "s/'//g"`
     elif test -n "$PDO_MYSQL_DIR"; then
@@ -89,34 +88,8 @@ if test "$PHP_PDO_MYSQL" != "no"; then
       AC_MSG_ERROR([Unable to find your mysql installation])
     fi
 
-    PHP_CHECK_LIBRARY($PDO_MYSQL_LIBNAME, mysql_commit,
-    [
-      PHP_EVAL_INCLINE($PDO_MYSQL_INCLUDE)
-      PHP_EVAL_LIBLINE($PDO_MYSQL_LIBS, PDO_MYSQL_SHARED_LIBADD)
-    ],[
-      if test "$PHP_ZLIB_DIR" != "no"; then
-        PHP_ADD_LIBRARY_WITH_PATH(z, $PHP_ZLIB_DIR, PDO_MYSQL_SHARED_LIBADD)
-        PHP_CHECK_LIBRARY($PDO_MYSQL_LIBNAME, mysql_commit, [], [
-          AC_MSG_ERROR([PDO_MYSQL configure failed, MySQL 4.1 needed. Please check config.log for more information.])
-        ], [
-          -L$PHP_ZLIB_DIR/$PHP_LIBDIR -L$PDO_MYSQL_LIB_DIR
-        ])
-        PDO_MYSQL_LIBS="$PDO_MYSQL_LIBS -L$PHP_ZLIB_DIR/$PHP_LIBDIR -lz"
-      else
-        PHP_ADD_LIBRARY(z,, PDO_MYSQL_SHARED_LIBADD)
-        PHP_CHECK_LIBRARY($PDO_MYSQL_LIBNAME, mysql_query, [], [
-          AC_MSG_ERROR([Try adding --with-zlib-dir=<DIR>. Please check config.log for more information.])
-        ], [
-          -L$PDO_MYSQL_LIB_DIR
-        ])
-        PDO_MYSQL_LIBS="$PDO_MYSQL_LIBS -lz"
-      fi
-
-      PHP_EVAL_INCLINE($PDO_MYSQL_INCLUDE)
-      PHP_EVAL_LIBLINE($PDO_MYSQL_LIBS, PDO_MYSQL_SHARED_LIBADD)
-    ],[
-      $PDO_MYSQL_LIBS
-    ])
+    PHP_EVAL_INCLINE($PDO_MYSQL_INCLUDE)
+    PHP_EVAL_LIBLINE($PDO_MYSQL_LIBS, PDO_MYSQL_SHARED_LIBADD)
   fi
 
   PHP_CHECK_PDO_INCLUDES