On Tue, 22 Mar 2005 13:02:38 -0000, John Maddock <john@johnmaddock.co.uk> wrote:
Who should I work with to get the appropriate tests marked as known-to-fail or N/A? This exercise is necessary for some gcc-on-Solaris tests as well. For instance, all of the "*_lib" tests in Boost.Thread fail because "gcc -static" won't link with *any* shared libs. Solaris does not provide static versions of -lrt or -lthread, so these tests fail to link. There really should really be a "-prefer-static" option to gcc.. Alternately, the Jamfiles could be hacked to use -Wl,-Bstatic / -Wl,-Bdynamic guards around the inclusion of the Boost.Thread lib for these tests.
That would probably be my preferred option, is it just a case of adding -Wl,-Bdynamic to the very end of the command line? Rene would probably know the best way to fix this.
In my testing, I have found that you can't use "gcc -static" on Solaris if you have *any* shared libs to link with. It overrides even later uses of -Wl,-Bdynamic (in fact using both -static and -Wl,-Bdynamic causes a linker error - see below). If you want to link with static versions of some libs and dynamic versions of others (as one must in the case of the Boost.Thread tests which use -lpthread and -lrt for which no static versions exist), it appears that the only way to do this is to specify the static libs as fully qualified filenames (e.g. /path/to/libfoo.a). See the examples below: static.c: --- #include <curses.h> int main () { initscr (); endwin (); return 0; } --- Link statically with -lcurses (OK) % gcc -static -o static static.c -lcurses Try to link statically with -lcurses and -lrt (fails - no librt.a exists) % gcc -static -o static static.c -lcurses -lrt ld: fatal: library -lrt: not found ld: fatal: File processing errors. No output written to static collect2: ld returned 1 exit status Try to link statically with -lcurses and dynamically with -lrt (fails - linker error) % gcc -static -o static static.c -lcurses -Wl,-Bdynamic -lrt ld: fatal: option -dn and -Bdynamic are incompatible ld: fatal: library -lrt: not found ld: fatal: File processing errors. No output written to static collect2: ld returned 1 exit status Try to link statically with -lcurses only (OK): % gcc -o static static.c -Wl,-Bstatic -lcurses -Wl,-Bdynamic -lrt % ldd static librt.so.1 => /usr/lib/librt.so.1 libc.so.1 => /usr/lib/libc.so.1 libaio.so.1 => /usr/lib/libaio.so.1 libdl.so.1 => /usr/lib/libdl.so.1 /usr/platform/SUNW,Netra-T12/lib/libc_psr.so.1 Also, note that -Wl,-Bdynamic must be in effect at the end of the command line because gcc does not provide a static version of -lgcc_s. Not sure why this happens, though, because -static works for this case: hello.cpp: #include <iostream> int main () { std::cout << "Hello World!\n"; return 0; } % g++ -o hello hello.cpp -Wl,-Bstatic ld: fatal: library -lgcc_s: not found ld: fatal: library -lgcc_s: not found ld: fatal: File processing errors. No output written to hello collect2: ld returned 1 exit status % g++ -o hello hello.cpp -Wl,-Bstatic -Wl,-Bdynamic % ./hello Hello World! % g++ -static -o hello hello.cpp % ./hello Hello World! Not sure what the difference is between the -Wl,-Bstatic and -static cases is here. -- Caleb Epstein caleb dot epstein at gmail dot com