Bug#15069 [patch] my_print_defaults does'nt care --sysconfdir

 - Grab the path from "configure --sysconfdir=<path>" and set it as
   the first place to look for my.cnf files
   Do this both in Makefiles for libmysql and mysys
 - Patch provided by Francesco Riosa. Thank you!

libmysql/Makefile.shared

@@ -85,6 +85,7 @@ DEFS =			-DDEFAULT_CHARSET_HOME="\"$(MYSQLBASEdir)\"" \
 			-DDATADIR="\"$(MYSQLDATAdir)\"" \
 			-DDEFAULT_HOME_ENV=MYSQL_HOME \
 			-DDEFAULT_GROUP_SUFFIX_ENV=MYSQL_GROUP_SUFFIX \
+			-DDEFAULT_SYSCONFDIR="\"$(sysconfdir)\"" \
 			-DSHAREDIR="\"$(MYSQLSHAREdir)\"" $(target_defs)
 
 # The automatic dependencies miss this

mysys/Makefile.am

@@ -70,6 +70,7 @@ DEFS =			-DDEFAULT_BASEDIR=\"$(prefix)\" \
 			-DSHAREDIR="\"$(MYSQLSHAREdir)\"" \
 			-DDEFAULT_HOME_ENV=MYSQL_HOME \
 			-DDEFAULT_GROUP_SUFFIX_ENV=MYSQL_GROUP_SUFFIX \
+			-DDEFAULT_SYSCONFDIR="\"$(sysconfdir)\"" \
                         @DEFS@
 
 libmysys_a_DEPENDENCIES= @THREAD_LOBJECTS@

mysys/default.c

@@ -48,7 +48,7 @@ char *defaults_extra_file=0;
 
 /* Which directories are searched for options (and in which order) */
 
-#define MAX_DEFAULT_DIRS 6
+#define MAX_DEFAULT_DIRS 7
 const char *default_directories[MAX_DEFAULT_DIRS + 1];
 
 #ifdef __WIN__
@@ -959,11 +959,13 @@ static uint my_get_system_windows_directory(char *buffer, uint size)
     4. getenv(DEFAULT_HOME_ENV)
     5. Directory above where the executable is located
     6. ""
+    7. --sysconfdir=<path>
 
   On Novell NetWare, this is:
     1. sys:/etc/
     2. getenv(DEFAULT_HOME_ENV)
     3. ""
+    4. --sysconfdir=<path>
 
   On OS/2, this is:
     1. getenv(ETC)
@@ -971,12 +973,14 @@ static uint my_get_system_windows_directory(char *buffer, uint size)
     3. getenv(DEFAULT_HOME_ENV)
     4. ""
     5. "~/"
+    6. --sysconfdir=<path>
 
   Everywhere else, this is:
     1. /etc/
     2. getenv(DEFAULT_HOME_ENV)
     3. ""
     4. "~/"
+    5. --sysconfdir=<path>
 
  */
 
@@ -1040,6 +1044,10 @@ static void init_default_directories()
     }
     *ptr++= (char *)&config_dir;
   }
+#endif
+#ifdef DEFAULT_SYSCONFDIR
+  if (DEFAULT_SYSCONFDIR != "")
+    *ptr++= DEFAULT_SYSCONFDIR;
 #endif
   *ptr= 0;			/* end marker */
 }