amd64-current gallium link failure, relocation truncated.

["John D. Baker" <jdbaker%consolidated.net@localhost>]

After numerous successfull linkages of gallium for amd64-current (9.99.18)
on amd64-8.1_STABLE host, it failed today with:

[...]
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x172162): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17217a): relocation truncated to fit: R_X86_64_32 against `.debug_ranges'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x174ff2): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x176551): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x176a7a): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x179a92): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17b6a1): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17bbf2): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17bf09): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17c4a9): relocation truncated to fit: R_X86_64_32 against `.debug_loc'
/r0/build/current/tools/amd64/lib/gcc/x86_64--netbsd/8.3.0/../../../../x86_64--netbsd/bin/ld: /r0/build/current/obj/amd64/external/apache2/llvm/librt/libLLVMScalarOpts/libLLVMScalarOpts_pic.a(GVN.pico):(.debug_info+0x17c8d1): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status
*** [gallium_dri.so.0.link] Error code 1
nbmake[7]: stopped in /x/current/src/external/mit/xorg/lib/gallium
[...]

I see no similar failures on the NetBSD build cluster, so perhaps my
tree was updated at an inopportune time?

I have another amd64 build host (9.0_BETA) building i386-current now
and will build amd64-current next, so I'll see how that goes.

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