Im trying to write a program atm which uses mutexes to control thread access to a certain code section ( the critical section).
However, whenever I compile the code using gcc I get the following message from gcc
Unresolved text symbol "pthread_mutex_lock"
Unresolved text symbol "pthread_mutex_unlock"
I initalise my mutex as follows, after including <pthread.h> in my code
The critical section is accessed in the following way. Note that this code segment is generic as my threads perform the same functionality
I have included the -lpthread (which is needed to support thread functionality in the program ) in the compiling command, so I cannot understand why my code is not compiling
this is my lex file ------------ test.l
%%
printf("%c",yytext+'a'-'A');.ECHO;
how do i compile it
$ lex test.l cc lex.yy.c -o test -ll <------|
|
if this is correct do i add this line--------| @the command line or does it... (0 Replies)
I'm trying to do something fairly simple but keep getting frustrating messages..
Here it is:
I have 3 files:
init.h <header>
init.c <#include <curses.h> and "init.h">
main.c <#include "init.h">
now, how can I compile my main.c using gcc?
( I have a hard time making the init.o)
... (1 Reply)
hello,
i have a structure defined as follows
struct Image
{
int lenght;
int height;
};
and i have another structure where i declare a array of the above structure
struct ShapeImage
{
Image image;
};
when i compile this code with gcc it shows me the following error :
... (3 Replies)
Hello, I have never had a successful compile on the 2.6 kernel. On every arch in which I try to compile gcc I get either "i686-pc-cygwin-ar command not found or "i686-suse-linux-ar command not found. This always happens during the make process after configure checks for ar and finds it's just ar.... (2 Replies)
Sorry for a silly question. I a program that need to compile with -DUSE_LONGLONG to turn on the long Int as the document of that program said so, but I really don't know how to do this. I normally do this:
./configure
make
make install
and it works fine. But I don't know how to compile... (2 Replies)
I am using gcc to compile c objects on solaris 5.10 and hit the following error messages:
/usr/include/sys/vfs.h:323: error: syntax error before "statvfs64_t"
/usr/include/sys/vfs.h:334: error: syntax error before "statvfs64_t"
gmake: *** Error 1
The c program files were copied over from... (3 Replies)
Hi guys.
I want to compile three files:
gcc -static main.c fib.c fib.h
it is pure C i mean i use standard C library.
but it gives me this error:
/usr/bin/ld: cannot find -lc
collect2: ld returned 1 exit status
what should i do? (4 Replies)
Hi Everyone,
I can ask what is the option to compile a 64 bits program using gcc. I have looked everywhere but can't find it. Before I used to use cc and the -q64 flag was the option to generate the 64 bits binary. Can anyone tell me what is the flags when using gcc. Thanks...... (3 Replies)
First of all -- thanks for being patient with me. I hope I'm submitting this correctly. Also I haven't done UNIX Admin since the early 1990's. I'm actually a DBA. But, since I'm the one in the office with the UNIX experience, I'm the SA.
I haven't been able to compile GCC 6.3.0 which I need... (9 Replies)
Discussion started by: PJ_Namias
9 Replies
LEARN ABOUT LINUX
mysql_config
MYSQL_CONFIG(1) MySQL Database System MYSQL_CONFIG(1)NAME
mysql_config - display options for compiling clients
SYNOPSIS
mysql_config options
DESCRIPTION
mysql_config provides you with useful information for compiling your MySQL client and connecting it to MySQL. It is a shell script, so it
is available only on Unix and Unix-like systems.
mysql_config supports the following options.
o --cflags
Compiler flags to find include files and critical compiler flags and defines used when compiling the libmysqlclient library. The
options returned are tied to the specific compiler that was used when the library was created and might clash with the settings for
your own compiler. Use --include for more portable options that contain only include paths.
o --include
Compiler options to find MySQL include files.
o --libmysqld-libs, --embedded
Libraries and options required to link with the MySQL embedded server.
o --libs
Libraries and options required to link with the MySQL client library.
o --libs_r
Libraries and options required to link with the thread-safe MySQL client library. In MySQL 5.5, all client libraries are thread-safe,
so this option need not be used. The --libs option can be used in all cases.
o --plugindir
The default plugin directory path name, defined when configuring MySQL.
o --port
The default TCP/IP port number, defined when configuring MySQL.
o --socket
The default Unix socket file, defined when configuring MySQL.
o --version
Version number for the MySQL distribution.
If you invoke mysql_config with no options, it displays a list of all options that it supports, and their values:
shell> mysql_config
Usage: /usr/local/mysql/bin/mysql_config [options]
Options:
--cflags [-I/usr/local/mysql/include/mysql -mcpu=pentiumpro]
--include [-I/usr/local/mysql/include/mysql]
--libs [-L/usr/local/mysql/lib/mysql -lmysqlclient
-lpthread -lm -lrt -lssl -lcrypto -ldl]
--libs_r [-L/usr/local/mysql/lib/mysql -lmysqlclient_r
-lpthread -lm -lrt -lssl -lcrypto -ldl]
--socket [/tmp/mysql.sock]
--port [3306]
--version [5.5.31]
--libmysqld-libs [-L/usr/local/mysql/lib/mysql -lmysqld
-lpthread -lm -lrt -lssl -lcrypto -ldl -lcrypt]
You can use mysql_config within a command line using backticks to include the output that it produces for a particular option. For example,
to compile and link a MySQL client program, use mysql_config as follows:
shell> gcc -c `mysql_config --cflags` progname.c
shell> gcc -o progname progname.o `mysql_config --libs`
COPYRIGHT
Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of the License.
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
at http://dev.mysql.com/doc/.
AUTHOR
Oracle Corporation (http://dev.mysql.com/).
MySQL 5.5 01/30/2014 MYSQL_CONFIG(1)