configure, mysql plugin: Check for mysql.h as well.

Up to now, only mysql/mysql.h has been checked for. However, mysql_config
--cflags usually adds the complete path to mysql.h to the include flags. In
most setups, mysql/mysql.h can be found in the search path as well (usually
the header is available in something like /usr/include/mysql/mysql.h) so this
issue has not been found so far. However, if that's not the case, the build
will fail.

Thanks to Dusty Doris <collectd@dusty.name> for reporting this.

diff --git a/configure.in b/configure.in
index bc4d321..6fd080a 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1338,12 +1338,24 @@ then
 
        if test $mysql_config_status -ne 0
        then
-               with_libmysql="no"
+               with_libmysql="no ($with_mysql_config failed)"
        else
                SAVE_CPPFLAGS="$CPPFLAGS"
                CPPFLAGS="$CPPFLAGS $with_mysql_cflags"
 
-               AC_CHECK_HEADERS(mysql/mysql.h, [], [with_libmysql="no (mysql/mysql.h not found)"], [])
+               have_mysql_h="no"
+               have_mysql_mysql_h="no"
+               AC_CHECK_HEADERS(mysql.h, [have_mysql_h="yes"])
+
+               if test "x$have_mysql_h" = "xno"
+               then
+                       AC_CHECK_HEADERS(mysql/mysql.h, [have_mysql_mysql_h="yes"])
+               fi
+
+               if test "x$have_mysql_h$have_mysql_mysql_h" = "xnono"
+               then
+                       with_libmysql="no (mysql.h not found)"
+               fi
 
                CPPFLAGS="$SAVE_CPPFLAGS"
        fi
@@ -1355,7 +1367,7 @@ then
 
        if test $mysql_config_status -ne 0
        then
-               with_libmysql="no"
+               with_libmysql="no ($with_mysql_config failed)"
        else
                AC_CHECK_LIB(mysqlclient, mysql_init,
                 [with_libmysql="yes"],

diff --git a/src/mysql.c b/src/mysql.c
index aa585d6..30557f6 100644 (file)
--- a/src/mysql.c
+++ b/src/mysql.c
@@ -24,7 +24,9 @@
 #include "plugin.h"
 #include "configfile.h"
 
-#ifdef HAVE_MYSQL_MYSQL_H
+#ifdef HAVE_MYSQL_H
+#include <mysql.h>
+#elif defined(HAVE_MYSQL_MYSQL_H)
 #include <mysql/mysql.h>
 #endif