Fix AC_CHECK_LIB for mysql_init - add dependent libraries. mysql detection

separated into external m4 file


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1661 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 71 insertions, 0 deletions

diff --git a/m4/np_mysqlclient.m4 b/m4/np_mysqlclient.m4
new file mode 100644
index 00000000..6bd51b83
--- /dev/null
+++ b/m4/np_mysqlclient.m4
@@ -0,0 +1,71 @@
+# np_mysqlclient.m4
+dnl Copyright (C) 2007 Nagios Plugins Team
+dnl This file is free software; the Nagios Plugin Team
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Test for mysql availability using mysql_config
+dnl Uses --with-mysql= yes(autodetection - default) | no | path
+dnl Sets 4 variables:
+dnl   with_mysql = path/to/mysql_config (if found and can compile mysqlclient) or "no"
+dnl   np_mysql_include = flags for include, from mysql_config --include (will be guessed as $with_mysql/include if --include not found)
+dnl   np_mysql_libs    = flags for libs,    from mysql_config --libs
+dnl   np_mysql_cflags  = flags for cflags,  from mysql_config --cflags
+dnl Also sets in config.h:
+dnl   HAVE_MYSQLCLIENT
+dnl Copile your code with:
+dnl   $(CC) $(np_mysql_include) code.c $(np_mysql_libs)
+
+AC_DEFUN([np_mysqlclient],
+[
+  AC_ARG_WITH(mysql,
+    ACX_HELP_STRING([--with-mysql=DIR],
+      [Locates mysql libraries. Expects DIR/bin/mysql_config. Default to search for mysql_config in PATH]),
+    with_mysql=$withval,
+    with_mysql=yes)
+
+  if test "x$with_mysql" != "xno" ; then
+    if test "x$with_mysql" = "xyes" ; then
+      AC_PATH_PROG(np_mysql_config, mysql_config)
+    else
+      if test -x $with_mysql/bin/mysql_config ; then
+        np_mysql_config="$with_mysql/bin/mysql_config"
+      fi
+    fi
+    if test -z "$np_mysql_config"; then
+      with_mysql="no"
+    else
+      np_mysql_include="`$np_mysql_config --include`"
+      # Mysql 3 does not support --include. --cflags should be sufficient
+      if test $? -ne 0; then
+        np_mysql_include="-I$with_mysql/include"        # Guessed location
+      fi
+      np_mysql_libs="`$np_mysql_config --libs`"
+      np_mysql_cflags="`$np_mysql_config --cflags`"
+
+      dnl Test a mysql_init. Some systems have mysql_config, but no headers
+      _savedcppflags="$CPPFLAGS"
+      CPPFLAGS="$CPPFLAGS $np_mysql_include"
+
+      dnl Putting $np_mysql_libs as other libraries ensures that all mysql dependencies are linked in
+      dnl Although -lmysqlclient is duplicated, it is not a problem
+      AC_CHECK_LIB([mysqlclient], [mysql_init], [
+        with_mysql=$np_mysql_config
+        AC_DEFINE(HAVE_MYSQLCLIENT, 1, [Defined if mysqlclient is found and can compile]) 
+        ], [with_mysql=no], [$np_mysql_libs])
+      CPPFLAGS=$_savedcppflags
+
+    fi
+  fi
+])
+
+dnl Will take $1, find last occurrance of -LDIR and add DIR to LD_RUN_PATH
+AC_DEFUN([np_add_to_runpath], 
+[
+  dnl Need [[ ]] so autoconf gives us just one set
+  np_libdir=`echo "$1" | sed -e 's/.*-L\([[^ ]]*\) .*/\1/'`
+  if test "x$np_libdir" != x ; then
+    LD_RUN_PATH="${np_libdir}${LD_RUN_PATH:+:}${LD_RUN_PATH}"
+  fi
+])
+