[Bug ld/13201] New: gcc -Wl,--as-needed -flto doesn't work with the BFD linker, but with gold

[doko at debian dot org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13201

             Bug #: 13201
           Summary: gcc -Wl,--as-needed -flto doesn't work with the BFD
                    linker, but with gold
           Product: binutils
           Version: 2.22 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
        AssignedTo: address@hidden
        ReportedBy: address@hidden
    Classification: Unclassified


$ cat test-flto.c 
#include <math.h>
#include <stdio.h>

int main()
{
        printf("%le\n", gamma(42));
        return 0;
}


$ gcc -Wl,--as-needed -flto test-flto.c -lm
/tmp/ccXjDUDX.ltrans0.ltrans.o: In function `main':
ccXjDUDX.ltrans0.o:(.text+0xd): undefined reference to `gamma'
collect2: ld returned 1 exit status

$ gcc -B/usr/lib/gold-ld/ -Wl,--as-needed -flto -o test-flto test-flto.c -lm
does work

see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50367

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