Red Hat Bugzilla – Bug 507247
Gnat is compiled without support for libraries.
Last modified: 2009-08-21 05:03:35 EDT
Description of problem: When Gnatmake encounters a Library_Name attribute in a project file it says "warning: libraries are not supported on this platform", and I can't get it to generate or link to any shared libraries. I think the same message also appears in other cases that have to do with libraries. Ludovic Brenta, maintainer of Gnat in Debian, explains: "This indicates that GCC was compiled with the wrong version of mlib-tgt.adb. In GCC 4.4, the proper version was renamed from mlib-tgt-linux.adb to mlib-tgt-specific-linux.adb. I know because I had to fix this problem for the Debian package, which is now in the NEW queue awaiting inspection by an FTP master." I looked at the mlib-tgt* files and it looks like "cp mlib-tgt-specific-linux.adb mlib-tgt-specific.adb" should be done at some point in the build process. Version-Release number of selected component (if applicable): gcc-gnat-4.4.0-4 How reproducible: Always. Steps to Reproduce: Try to compile some Ada project, for example one of the GTKada examples: 1. yum install gcc-gnat GtkAda-doc 2. cp -a /usr/share/doc/GtkAda-doc-2.10.2/examples/base_widget/ . 3. cd base_widget/ 4. make Actual results (Fedora 11, i586): gnatmake -Pdefault gtkada.gpr:13:31: warning: libraries are not supported on this platform gcc -c -I- -gnatA /home/beorn/base_widget/main.adb gcc -c -I- -gnatA /home/beorn/base_widget/my_widget.adb gnatbind -I- -x /home/beorn/base_widget/main.ali error: "gtk.ali" not found, "gtk.ads" must be compiled gnatmake: *** bind failed. make: *** [all] Error 4 Expected results (Fedora 9, x86_64): gnatmake -Pdefault gcc -c -I- -gnatA /home/beorn/base_widget/main.adb gcc -c -I- -gnatA /home/beorn/base_widget/my_widget.adb gnatbind -shared -I- -x /home/beorn/base_widget/main.ali gnatlink /home/beorn/base_widget/main.ali -shared-libgcc -L/usr/lib64/gtkada/relocatable -lgtkada -Wl,-rpath,/usr/lib64/gtkada/relocatable:/usr/lib/gcc/x86_64-redhat-linux/4.3.0/adalib/ /usr/lib64/gtkada/static/libgtkada.a -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -o /home/beorn/base_widget/main Additional info: I have Fedora 11 only on a Pentium III test machine so far. I don't know whether the problem occurs on other platforms. I have no reason to think it's architecture-specific.
It happens on x86_64 too.
Created attachment 349668 [details] spec hack to enable libraries This is probably not the way it's meant to be done but this patch gets GNAT working again.
Created attachment 355155 [details] fix to the library support I've finally found the error. This is the real fix. The bug is already fixed in GCC 4.4.1 but 4.4.0 needs this patch.
Björn: F-11 features gcc-4.4.1-2.fc11.x86_64, where is it fixed right? So, only F-10, which features 4.3.2, is affected? Flipping version "10".
This bug is new in GCC 4.4.0. Fedora 10 is not affected. At least it wasn't when I went to Fedora 11. The current version in Fedora 11 is still gcc-4.4.0-4. After some confusion I found gcc-4.4.1-2.fc11 in updates-testing, and tried it. It works. This bug can be closed when that gets released to the updates repository.
OK. In F-10 there's GCC 4.3.2 and not gonna be updated to 4.4.X. Since 4.4.1 is in updates-testing flipping to ON_QA.
I see the update to gcc-4.4.1-2.fc11 is released now.