On Nov 11, 2007 12:54 AM, Brice Goglin <[EMAIL PROTECTED]> wrote:
> Dan Nicholson wrote:
> > This commit adds the necessary libraries for the programs in each
> > specific Makefile. Previously, all programs were linked with libraries
> > listed in the $(APP_LIB_DEPS) variable. This effectively meant that the
> > libraries to link into applications was hardcoded. Instead, the contents
> > of $(APP_LIB_DEPS) should be reserved for generic or platform-specific
> > libraries.
> >
> > This change helps in places like progs/xdemos, which don't require
> > libglut and may not have been built.
>
> While building Mesa 7.0.2 for Debian, I got an link error in progs/xdemos/
> because it was trying to link with libGLU which wasn't built. Since these
> programs don't seem to need libGLU at all (it worked fine without it
> earlier), I don't understand why you added -l$(GLU_LIB) to LIBS below.
>
> There might be some similar problems in other progs/ subdirectories,
> I didn't check.

Yeah, I thought about that problem, but like Brian says, some of the
xdemos apps use libGLU. I had noticed that Debian doesn't build GLU.
That's a case that's tough to handle, though, but I would like that to
be supported. For now, I'd suggest just building with PROGRAM_DIRS=""
and manually building glxinfo/glxgears as needed.

Maybe the xdemos Makefile can be broken down further with a little
make conditional:

PROGS = <all progs needing just libGL>
GLU_PROGS = <all progs needing libGLU>
LIB_DEP = $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME)
LIBS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB) $(APP_LIB_DEPS)
ifneq (,$(shell ls $(TOP)/$(LIB_DIR)/$(GLU_LIB_NAME))
PROGS += $(GLU_PROGS)
LIB_DEP += $(TOP)/$(LIB_DIR)/$(GLU_LIB_NAME)
LIBS += -l$(GLU_LIB)
endif

--
Dan

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