I get nothing when I run $OPCODEDIR or $OPCODEDIR64 from my OSX
terminal. Is this not set on OSX? My frontends check this variable to
make sure Csound is installed.

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I assume you mean 'echo $OPCODEDIR' because that should not be set to
a runnable command anyway.

On my mountain lion machine, at least, I can run csound just fine but
those variables are not defined in the environment.

On Thu, Sep 6, 2012 at 8:02 AM, Rory Walsh  wrote:
> I get nothing when I run $OPCODEDIR or $OPCODEDIR64 from my OSX
> terminal. Is this not set on OSX? My frontends check this variable to
> make sure Csound is installed.
>
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Yes, sorry, that's what I mean. So I assume it's not set. Perhaps it
can be in the future, as this would mean one simple solution for all
platforms in terms of checking if Csound is installed correctly. I
hate having to write platform specific code for cross platform
applications.




> I assume you mean 'echo $OPCODEDIR' because that should not be set to
> a runnable command anyway.
>
> On my mountain lion machine, at least, I can run csound just fine but

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csound is installed and working on my primary machine (debian stable)
as well, and OPCODEDIR is not set in my environment, sounds like that
var may be a windows only thing at the moment?

On Thu, Sep 6, 2012 at 8:16 AM, Rory Walsh  wrote:
> Yes, sorry, that's what I mean. So I assume it's not set. Perhaps it
> can be in the future, as this would mean one simple solution for all
> platforms in terms of checking if Csound is installed correctly. I
> hate having to write platform specific code for cross platform
> applications.
>
>
>
>
>> I assume you mean 'echo $OPCODEDIR' because that should not be set to
>> a runnable command anyway.
>>
>> On my mountain lion machine, at least, I can run csound just fine but
>
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It's also set on Linux. It's a simple thing to have the installer set
it, if it doesn't mess things up that is. Currently my frontends do
this on start up:

if(OPCODEDIR is not valid)
print "Please install Csound before using this software"

Works fine for Windows and Linux. Victor looks after the OSX
installer. Let's see what he thinks.


On 6 September 2012 16:18, Justin Smith  wrote:
> csound is installed and working on my primary machine (debian stable)

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it isn't set on debian stable, and csound runs just fine

On Thu, Sep 6, 2012 at 8:24 AM, Rory Walsh  wrote:
> It's also set on Linux. It's a simple thing to have the installer set
> it, if it doesn't mess things up that is. Currently my frontends do
> this on start up:
>
> if(OPCODEDIR is not valid)
> print "Please install Csound before using this software"
>
> Works fine for Windows and Linux. Victor looks after the OSX
> installer. Let's see what he thinks.
>
>
> On 6 September 2012 16:18, Justin Smith  wrote:
>> csound is installed and working on my primary machine (debian stable)
>
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OPCODEDIR is not necessary to run csound. So don't check for it.
Csound has a pre-compiled default OPCODEDIR, so it doesn't need it.
You should really be checking for the stuff you really need, which is
(I presume) the csound library.

On Thu, Sep 6, 2012 at 12:31 PM, Justin Smith  wrote:
> it isn't set on debian stable, and csound runs just fine
>
> On Thu, Sep 6, 2012 at 8:24 AM, Rory Walsh  wrote:
>> It's also set on Linux. It's a simple thing to have the installer set
>> it, if it doesn't mess things up that is. Currently my frontends do
>> this on start up:
>>
>> if(OPCODEDIR is not valid)
>> print "Please install Csound before using this software"
>>
>> Works fine for Windows and Linux. Victor looks after the OSX
>> installer. Let's see what he thinks.
>>
>>
>> On 6 September 2012 16:18, Justin Smith  wrote:
>>> csound is installed and working on my primary machine (debian stable)
>>
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Felipe Sateler

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Csound loads from a default of OPCODEDIR is not set.  The code is in
Top/csmodule.c:

/* default directory to load plugins from if environment variable is not set */
#if !(defined(_CSOUND_RELEASE_) && (defined(LINUX) || defined(__MACH__)))
#  define ENABLE_OPCODEDIR_WARNINGS 1
#  ifdef CS_DEFAULT_PLUGINDIR
#    undef CS_DEFAULT_PLUGINDIR
#  endif
#  define CS_DEFAULT_PLUGINDIR      "."
#else
#  define ENABLE_OPCODEDIR_WARNINGS 0
#  ifndef CS_DEFAULT_PLUGINDIR
#    ifndef USE_DOUBLE
#      define CS_DEFAULT_PLUGINDIR  "/usr/local/lib/csound/plugins"
#    else
#      define CS_DEFAULT_PLUGINDIR  "/usr/local/lib/csound/plugins64"
#    endif
#  endif
#endif

It's also passed in during build from SCons in csound5:

SConstruct:898:        s = '-DCS_DEFAULT_PLUGINDIR=\\"%s\\"' % tmp
SConstruct:905:        s = '-DCS_DEFAULT_PLUGINDIR=\\"%s\\"' % tmp




On Thu, Sep 6, 2012 at 4:31 PM, Justin Smith  wrote:
> it isn't set on debian stable, and csound runs just fine
>
> On Thu, Sep 6, 2012 at 8:24 AM, Rory Walsh  wrote:
>> It's also set on Linux. It's a simple thing to have the installer set
>> it, if it doesn't mess things up that is. Currently my frontends do
>> this on start up:
>>
>> if(OPCODEDIR is not valid)
>> print "Please install Csound before using this software"
>>
>> Works fine for Windows and Linux. Victor looks after the OSX
>> installer. Let's see what he thinks.
>>
>>
>> On 6 September 2012 16:18, Justin Smith  wrote:
>>> csound is installed and working on my primary machine (debian stable)
>>
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You beat me to it, I was just going through the sources myself. Ok, so
I guess I need to use another check. Can anyone think of a simple way
to check if Csound is installed? Cross-platform would be nice?

On 6 September 2012 16:36, Steven Yi  wrote:
> Csound loads from a default of OPCODEDIR is not set.  The code is in
> Top/csmodule.c:

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What language are you developing in?

On Thu, Sep 6, 2012 at 12:39 PM, Rory Walsh  wrote:
> You beat me to it, I was just going through the sources myself. Ok, so
> I guess I need to use another check. Can anyone think of a simple way
> to check if Csound is installed? Cross-platform would be nice?
>
> On 6 September 2012 16:36, Steven Yi  wrote:
>> Csound loads from a default of OPCODEDIR is not set.  The code is in
>> Top/csmodule.c:
>
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one approach would be to make an array of common install locations
(ie. the defaults of the various installers) and check them one by one
for the files you need if OPCODEDIR/OPCODEDIR64 are not set

then, anyone who has csound in a nonstandard place just has to make
sure and set OPCODEDIR (which they would have to do anyway), and it
would just work

On Thu, Sep 6, 2012 at 8:39 AM, Rory Walsh  wrote:
> You beat me to it, I was just going through the sources myself. Ok, so
> I guess I need to use another check. Can anyone think of a simple way
> to check if Csound is installed? Cross-platform would be nice?
>
> On 6 September 2012 16:36, Steven Yi  wrote:
>> Csound loads from a default of OPCODEDIR is not set.  The code is in
>> Top/csmodule.c:
>
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I'm working in C++. (Sorry Steven, no smart ass answer this time!)
Anyone know of a way to check the existence of a particular library?
Of course I could just do a web search!

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You could try doing a dynamic load, like how the opcode libraries are
loaded. dlopen should search LD_LIBRARY_PATH on *nix systems.
LoadLibrary on Windows is documented to search paths if just the
library name is given. Maybe try those?



On Thu, Sep 6, 2012 at 6:08 PM, Rory Walsh  wrote:
> I'm working in C++. (Sorry Steven, no smart ass answer this time!)
> Anyone know of a way to check the existence of a particular library?
> Of course I could just do a web search!
>
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Thanks Steven. I'll look into that. I guess there's no one size fits all here..

On 6 September 2012 18:35, Steven Yi  wrote:
> You could try doing a dynamic load, like how the opcode libraries are
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why not check if one of the files exists in each default location?

something like this (untested code, more of a mockup)

#include 

const char **locations=["/usr/lib/libcsound64.so.5.2"
"/usr/local/lib/libcsound64.so.5.2" "c:/Program
Files/csound/libcsound64.dll" ...];

int i = 0;
int test = 1;
struct stat buf;
for (i=0; test = stat(locations[i], &buf); test != 0);
found_csound = test == 0;

maybe you would want to break it down more (constructing a string out
of the file and the pathname to test for if the path that matched is
important)

On Thu, Sep 6, 2012 at 10:37 AM, Rory Walsh  wrote:
> Thanks Steven. I'll look into that. I guess there's no one size fits all here..
>
> On 6 September 2012 18:35, Steven Yi  wrote:
>> You could try doing a dynamic load, like how the opcode libraries are
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Yeah, that might be the easiest. It's easy to check the existence of
files. Cheers.

On 6 September 2012 19:48, Justin Smith  wrote:
> why not check if one of the files exists in each default location?
>
> something like this (untested code, more of a mockup)
>
> #include 
>
> const char **locations=["/usr/lib/libcsound64.so.5.2"
> "/usr/local/lib/libcsound64.so.5.2" "c:/Program
> Files/csound/libcsound64.dll" ...];
>
> int i = 0;
> int test = 1;
> struct stat buf;
> for (i=0; test = stat(locations[i], &buf); test != 0);
> found_csound = test == 0;
>
> maybe you would want to break it down more (constructing a string out
> of the file and the pathname to test for if the path that matched is
> important)
>
> On Thu, Sep 6, 2012 at 10:37 AM, Rory Walsh  wrote:
>> Thanks Steven. I'll look into that. I guess there's no one size fits all here..
>>
>> On 6 September 2012 18:35, Steven Yi  wrote:
>>> You could try doing a dynamic load, like how the opcode libraries are
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