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Full Discussion: ./configure backslash questions
Top Forums UNIX for Dummies Questions & Answers ./configure backslash questions Post 302311376 by RobertSubnet on Tuesday 28th of April 2009 01:06:47 PM
Old 04-28-2009
./configure backslash questions
Hello all. I am going to try my hand at compiling tarballs rather than installing packages.

I have a pretty good understanding of the process and have even compiled/installed Top from source.

But that was an easy install, I want to try something more complex using the various configure flags.

From what I have read, you can specify a number of options with the flags. From my reading, I often see a flag followed by a backslash ("\").

What I am wondering, are there any special rules with regards to the use of these backslashes? IE: single space after the flag and then the backslash? Does the flag denote a return? Is there no backslash used after the last flag in the list?

While on the subject of ./configure, what of the single quotes, are they necessary? I don't see them used too often.

Below is a sample ./configure I got from the MySQL site to demonstrate what I mean:

./configure \
'--prefix=/usr/local/mysql' \
'--disable-dependency-tracking' \
'--enable-assembler' \
'--localstatedir=/usr/local/mysql/data' \
'--libexecdir=/usr/local/mysql/bin' \
'--libdir=/usr/local/mysql/lib' \
'--enable-local-infile' \
'--enable-shared' \
'--enable-thread-safe-client' \
'--with-archive-storage-engine' \
'--with-big-tables' \
'--with-comment=MySQL Community Server (GPL)' \
'--with-extra-charsets=complex' \
'--with-innodb' \
'--with-mysqld-ldflags=-all-static' \
'--with-readline' \
'--with-server-suffix=-standard' \
'--with-unix-socket-path=/tmp/mysql.sock' \
'--with-zlib-dir=bundled' \
'--without-debug' \
'--without-docs' \
'--without-man'

Also why the \ immediately after the ./configure? Rather than say:
./configure --prefix=/usr/local/mysql \
<rest of the text>

is that just to make it neat for the web page and perfectly valid code?

Thank you for your comments.
~Robert
 

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LEARN ABOUT OPENSOLARIS

perror

perror(1)							  MySQL database							 perror(1)

NAME

       perror - describes a system or MySQL error code.

SYNOPSIS

       perror [OPTIONS] [ERRORCODE [ERRORCODE...]]

DESCRIPTION

       Can  be	used  to display a description for a system error code, or an MyISAM/ISAM table handler error code.  The error messages are mostly
       system dependent.

OPTIONS

       -?|--help
	      Displays this help and exits.

       -I|--info
	      Synonym for the above.

       -s|--silent
	      Only print the error message

       -v|--verbose
	      Print error code and message (default).

       -V|--version
	      Displays version information and exits.

EXAMPLE

       shell> perror 64 79 Error code  64:  Machine is not on the network Error code  79:  Can not access a needed shared library

SEE ALSO

       isamchk(1), isamlog(1), mysql(1), mysqlaccess(1), mysqladmin(1), mysqld(1), mysqld_multi(1), mysqld_safe(1), mysqldump(1), mysql_fix_privi-
       lege_tables(1), mysqlshow(1), mysql_zap(1), replace(1)

       For  more information please refer to the MySQL reference manual, which may already be installed locally and which is also available online
       at http://www.mysql.com/doc/en/

BUGS

       Please refer to http://bugs.mysql.com/ to report bugs.

AUTHOR

       Ver 1.0, distribution 4.0.24 Michael (Monty) Widenius (monty@mysql.com), MySQL AB (http://www.mysql.com/).  This  software  comes  with	no
       warranty.   Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mercur-
       media.com)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+------------------------------------+
       |  ATTRIBUTE TYPE    |	       ATTRIBUTE VALUE		 |
       +--------------------+------------------------------------+
       |Availability	    | SUNWmysqlr, SUNWmysqlu, SUNWmysqlt |
       +--------------------+------------------------------------+
       |Interface Stability | External				 |
       +--------------------+------------------------------------+
NOTES

       Source for mysql is available on http://opensolaris.org.

MySQL 4.0							 19 December 2000							 perror(1)
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