On 08/09/2012 10:00 AM, Matt Turner wrote:
On Thu, Aug 9, 2012 at 8:09 AM, Brian Paul<bri...@vmware.com>  wrote:
As of commit 9f7b3d171306ed2ae588e1a4145c5a364cf986ff,  when I try to
configure and build with:

$ CFLAGS=-g ./autogen.sh --enable-xlib-glx --with-x --disable-driglx-direct
--disable-dri --enable-debug --enable-gles1 --enable-gles2 --enable-openvg
--enable-gallium-egl --enable-xa --enable-xorg

$ make
[...]

gmake[5]: Entering directory
`/home/brian/projects/Mesa-llvm/mesa/src/mesa/drivers/x11'
   CCLD   libGL.la
/usr/bin/ld: cannot find -l-Wl,-soname
/usr/bin/ld: cannot find libGL.so.1: No such file or directory
collect2: ld returned 1 exit status
gmake[5]: *** [libGL.la] Error 1

This looks like the real error.

In src/mesa/drivers/x11/Makefile.am, commenting out these lines:

if HAVE_SHARED_GLAPI
lib@GL_LIB@_la_LDFLAGS += -L$(top_builddir)/$(LIB_DIR) -l$(GLAPI_LIB)
endif

fixes the compilation issue but at runtime there's an undefined symbol:

$ ./gears
./gears: symbol lookup error:
/home/brian/projects/Mesa-llvm/mesa/lib/libGL.so.1: undefined symbol:
_glapi_Dispatch

This looks like it's caused by commenting out the aforementioned lines.

I can't see how changing the default to shared-glapi would cause this,
since you're building GLES which turns on shared-glapi:

# build shared-glapi if enabled for OpenGL or if OpenGL ES is enabled
case "x$enable_shared_glapi$enable_gles1$enable_gles2" in
x*yes*)
     CORE_DIRS="$CORE_DIRS mapi/shared-glapi"
     ;;
esac

Actually, it's weird that we add the shared-glapi directory but don't
set SHARED_GLAPI. I think that might be the problem. To confirm this,
does adding --enable-shared-glapi to your configure line fix this?

No luck.  I also tried a simpler configuration:

CFLAGS=-g ./autogen.sh --enable-xlib-glx --with-x --disable-driglx-direct --disable-dri --enable-debug --enable-shared-glapi

[...]
  CC     xm_buffer.lo
  CC     xm_dd.lo
  CC     xm_line.lo
  CC     xm_tri.lo
  CCLD   libGL.la
/usr/bin/ld: cannot find -l-Wl,-soname
/usr/bin/ld: cannot find libGL.so.1: No such file or directory
collect2: ld returned 1 exit status

-Brian
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