Celestia Forums

Hi !

I had do a search here in this forum to see if someone take care of the trouble with GCC 3.X. Just one or two with no response.

What will you do for this ?? It's planned to work in 1.2.5 ??

Celestia is very very good !! But i can't install on my Gentoo 1.4RC1 because of GCC3.2

I hope in 1.2.5 this will work !

Thanks !!

I would like to help porting this app to gcc3.2 and/or Gentoo 1.4

If I can get it to work I'll let you know; at this point I'm not at all familiar with what needs to be done.

I work with a guy who recently ported our Astronomical Image Processing Software (AIPS++) to gcc 3.2; he should know about general compiler issues.

ok, now I'm registered on this board... didn't mean to voluneer for work without any contact info...

What kind of error do you get with gcc 3.2 ?

What kind of error do you get with gcc 3.2 ?

Well, I don't have a full-up Gnome installation, but rather have the minimum set of pieces I need to use everything I've needed so far...in particular, I installed GtkGLCanvas, but the config dies at this point:



I am certainly aware that this is not the issue, you can expect this sort of thing with my setup.

So I do this:


and I get numerous compile errors that seem to involve the collsion between my system-installed /usr/include/GL/gl.h and Celestia's glext.h:



is one instance. I don't think that's a gcc issue, however.

Also this warning/error:


This last one is probably related to gcc 3.x.

OK, I searched the forum on glext and got this very helpful tip from an anonymous poster:

In Gentoo, you have to switch to xfree opengl setting before compiling, then switch back to the nvidia afterwords. Do it like this:

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opengl-update xfree
emerge celestia
opengl-update nvidia


So I'm tried this, and get the warnings about implicit typenames, and then I hit this hard error:

watersb wrote:I am certainly aware that this is not the issue, you can expect this sort of thing with my setup.

So I do this:

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./configure --without-gtk

You can probably do a ./configure --without-gnome instead. That way you'll get the gtk menu at least.

watersb wrote:and I get numerous compile errors that seem to involve the collsion between my system-installed /usr/include/GL/gl.h and Celestia's glext.h:

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glext.h:600: `void (*glVertexAttribs3dvNV)(unsigned int, int, const GLdouble*)'
   redeclared as different kind of symbol
/usr/include/GL/gl.h:2743: previous declaration of `void
   glVertexAttribs3dvNV(unsigned int, int, const GLdouble*)'


is one instance. I don't think that's a gcc issue, however.

I've had that problem too, try commenting out #include <celengine/glext.h>.

watersb wrote:Also this warning/error:

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In file included from texmanager.h:15,
                 from 3dsmesh.cpp:15:
../celutil/resmanager.h: In member function `ResourceHandle
   ResourceManager<T>::getHandle(const T&)':
../celutil/resmanager.h:62: warning: `typename std::map<T, ResourceHandle,
   std::less<_Key>, std::allocator<std::pair<const T, ResourceHandle> >
   >::iterator' is implicitly a typename
../celutil/resmanager.h:62: warning: implicit typename is deprecated, please
   see the documentation for details


This last one is probably related to gcc 3.x.

I think so too. I don't know how to resolve it though.

Is the same for me....

Thanks !

There is a Celestia and GCC 3.x thread on the Gentoo Forum

I think that we should also follow the Mac OS X development efforts, as GCC 3.x is the default compiler for the current release of that OS.

I haven't signed up for write access to the CVS dirs, as I probably won't be a regular contributor. However, I've created a patch file based on the Mandrake celestia 1.2.4 patches for the CVS version I checked out on 10/29. It also includes a temporary fix for the ringed planet crashing problem. It's not long, so I'm including it below.

I'm also working on packaging it for RedHat 8.0. If anyone wants the SPEC file when It's ready, or if you want to host the package, let me know via e-mail at whraven@worldnet.att.net.

Here's the patch:

--- ./src/celengine/render.cpp.orig 2002-10-29 18:30:24.000000000 -0600
+++ ./src/celengine/render.cpp 2002-10-29 18:31:08.000000000 -0600
@@ -380,6 +380,7 @@
DPRINTF(1, "Renderer: multi-texture supported.\n");
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB,
(GLint*) &nSimultaneousTextures);
+ nSimultaneousTextures = 1;
}
if (ExtensionSupported("GL_EXT_texture_env_combine"))
{
--- ./src/celestia/celestiacore.cpp.orig 2002-10-29 18:20:45.000000000 -0600
+++ ./src/celestia/celestiacore.cpp 2002-10-29 18:23:18.000000000 -0600
@@ -205,7 +205,7 @@
sim->setFrame(fav.coordSys, sim->getSelection());
}

-void CelestiaCore::addFavorite(string name, string parentFolder, FavoritesList::iterator*iter)
+void CelestiaCore::addFavorite(string const & name, string const & parentFolder, const FavoritesList::iterator* iter)
{
FavoritesList::iterator pos;
if(!iter)
@@ -225,7 +225,7 @@
favorites->insert(pos, fav);
}

-void CelestiaCore::addFavoriteFolder(string name, FavoritesList::iterator* iter)
+void CelestiaCore::addFavoriteFolder(string const & name, const FavoritesList::iterator* iter)
{
FavoritesList::iterator pos;
if(!iter)
@@ -1297,7 +1297,7 @@
{
double distFromSun = body.getHeliocentricPosition(t).distanceFromOrigin();
float planetTemp = sun->getTemperature() *
- (float) (pow(1 - body.getAlbedo(), 0.25) *
+ (float) (pow(1.0 - body.getAlbedo(), 0.25) *
sqrt(sun->getRadius() / (2 * distFromSun)));
overlay << setprecision(0);
overlay << "Temperature: " << planetTemp << " K\n";
--- ./src/celestia/celestiacore.h.orig 2002-10-29 18:23:37.000000000 -0600
+++ ./src/celestia/celestiacore.h 2002-10-29 18:25:40.000000000 -0600
@@ -145,8 +145,8 @@
void readFavoritesFile();
void writeFavoritesFile();
void activateFavorite(FavoritesEntry&);
- void addFavorite(std::string, std::string, FavoritesList::iterator* iter=NULL);
- void addFavoriteFolder(std::string, FavoritesList::iterator* iter=NULL);
+ void addFavorite(std::string const&, std::string const&, const FavoritesList::iterator* iter=NULL);
+ void addFavoriteFolder(std::string const&, const FavoritesList::iterator* iter=NULL);
FavoritesList* getFavorites();

const DestinationList* getDestinations();
--- ./src/celestia/gtkmain.cpp.orig 2002-10-29 18:25:52.000000000 -0600
+++ ./src/celestia/gtkmain.cpp 2002-10-29 18:26:17.000000000 -0600
@@ -43,6 +43,8 @@
#include "celengine/simulation.h"
#include <libgnomeui/gnome-init.h>

+using namespace std;
+

char AppName[] = "Celestia";

--- ./src/buildstardb.cpp.orig 2002-10-29 18:26:26.000000000 -0600
+++ ./src/buildstardb.cpp 2002-10-29 18:29:41.000000000 -0600
@@ -923,7 +923,8 @@
{
MultistarSystem* multiSystem = new MultistarSystem();
multiSystem->nStars = 1;
- multiSystem->stars[0] = iter;
+ // (gb) stars[] could have been an array of iterators
+ multiSystem->stars[0] = &(*iter);
starSystems.insert(MultistarSystemCatalog::value_type(iter->CCDMIdentifier, multiSystem));
}
else
@@ -935,7 +936,7 @@
}
else
{
- multiSystem->stars[multiSystem->nStars] = iter;
+ multiSystem->stars[multiSystem->nStars] = &(*iter);
multiSystem->nStars++;
}
}
@@ -1164,7 +1165,7 @@
for (vector<HipparcosStar>::iterator iter = stars.begin();
iter != stars.end(); iter++)
{
- starIndex.insert(starIndex.end(), iter);
+ starIndex.insert(starIndex.end(), &(*iter));
}

HIPCatalogComparePredicate pred;

Sorry about the formatting. I'm still getting used to the forum. Here's a properly formatted version:

Rich Pinkall Pollei wrote:Sorry about the formatting. I'm still getting used to the forum. Here's a properly formatted version:

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--- ./src/celengine/render.cpp.orig     2002-10-29 18:30:24.000000000 -0600
+++ ./src/celengine/render.cpp  2002-10-29 18:31:08.000000000 -0600
@@ -380,6 +380,7 @@
         DPRINTF(1, "Renderer: multi-texture supported.\n");
         glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB,
                       (GLint*) &nSimultaneousTextures);
+       nSimultaneousTextures = 1;
     }
     if (ExtensionSupported("GL_EXT_texture_env_combine"))
     {


It does not look like a good idea to me to generically switch off multi-texture support with your "fix". This is rather "castration";-)

nSimultaneousTextures = 1;

should only be a last resort, in case of cards that do not support it. You do not want to take the fun out of NVIDIA owners over there at RedHat, do you?

Bye Fridger

It does not look like a good idea to me to generically switch off multi-texture support with your "fix". This is rather "castration";-)

nSimultaneousTextures = 1;

should only be a last resort, in case of cards that do not support it. You do not want to take the fun out of NVIDIA owners over there at RedHat, do you?

Agreed, which is why I gave it as a "temporary" fix. I plan on removing that part of the patch
after the base problem is fixed.

Meanwhile celestia-1.2.4 compiles with gcc-3.2 under Gentoo-1.4-rc1. Obviously the ebuild has been changed. So go on and enjoy it[/b]