for example; with --enable-stage1-languages=c,c++ (required for in-tree
GMP/MPFR)
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1obj-checksum.o differs
warning: gcc/cc1objplus-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
i686-apple-darwin9/libstdc++-v3/src/.libs/future.o differs
i686-apple-darwin9/libstdc++-v3/src/.libs/system_error.o differs
i686-apple-darwin9/libstdc++-v3/src/future.o differs
i686-apple-darwin9/libstdc++-v3/src/system_error.o differs
i686-apple-darwin9/x86_64/libstdc++-v3/src/.libs/future.o differs
i686-apple-darwin9/x86_64/libstdc++-v3/src/.libs/system_error.o differs
i686-apple-darwin9/x86_64/libstdc++-v3/src/future.o differs
i686-apple-darwin9/x86_64/libstdc++-v3/src/system_error.o differs
make[2]: *** [compare] Error 1
stripped future.o from stage 2
000007e0 63 5f 5f 5f 76 33 5f 73 72 63 5f 66 75 74 75 72 |c___v3_src_futur|
000007f0 65 2e 63 63 5f 30 30 30 30 30 30 30 30 5f 34 37 |e.cc_00000000_47|
00000800 44 39 32 31 34 32 32 31 66 75 74 75 72 65 5f 65 |D9214221future_e|
00000810 72 72 6f 72 5f 63 61 74 65 67 6f 72 79 45 00 00 |rror_categoryE..|
stripped future.o from stage 3
000007e0 63 5f 5f 5f 76 33 5f 73 72 63 5f 66 75 74 75 72 |c___v3_src_futur|
000007f0 65 2e 63 63 5f 30 30 30 30 30 30 30 30 5f 45 35 |e.cc_00000000_E5|
00000800 45 38 41 43 44 37 32 31 66 75 74 75 72 65 5f 65 |E8ACD721future_e|
00000810 72 72 6f 72 5f 63 61 74 65 67 6f 72 79 45 00 00 |rror_categoryE..|
===
stripped system_error.o from stage 2
000007a0 30 30 30 5f 37 37 34 44 41 30 30 45 32 32 67 65 |000_774DA00E22ge|
000007b0 6e 65 72 69 63 5f 65 72 72 6f 72 5f 63 61 74 65 |neric_error_cate|
000007c0 67 6f 72 79 45 00 00 00 00 00 00 00 00 00 00 00 |goryE...........|
000007d0 4e 38 39 5f 47 4c 4f 42 41 4c 5f 5f 4e 5f 2e 2e |N89_GLOBAL__N_..|
000007e0 5f 2e 2e 5f 2e 2e 5f 2e 2e 5f 67 63 63 5f 34 5f |_.._.._.._gcc_4_|
000007f0 35 5f 72 65 67 74 65 73 74 5f 6c 69 62 73 74 64 |5_regtest_libstd|
00000800 63 5f 5f 5f 76 33 5f 73 72 63 5f 73 79 73 74 65 |c___v3_src_syste|
00000810 6d 5f 65 72 72 6f 72 2e 63 63 5f 30 30 30 30 30 |m_error.cc_00000|
00000820 30 30 30 5f 37 37 34 44 41 30 30 45 32 31 73 79 |000_774DA00E21sy|
stripped system_error.o from stage 3
000007a0 30 30 30 5f 35 39 44 36 31 37 37 43 32 32 67 65 |000_59D6177C22ge|
000007b0 6e 65 72 69 63 5f 65 72 72 6f 72 5f 63 61 74 65 |neric_error_cate|
000007c0 67 6f 72 79 45 00 00 00 00 00 00 00 00 00 00 00 |goryE...........|
000007d0 4e 38 39 5f 47 4c 4f 42 41 4c 5f 5f 4e 5f 2e 2e |N89_GLOBAL__N_..|
000007e0 5f 2e 2e 5f 2e 2e 5f 2e 2e 5f 67 63 63 5f 34 5f |_.._.._.._gcc_4_|
000007f0 35 5f 72 65 67 74 65 73 74 5f 6c 69 62 73 74 64 |5_regtest_libstd|
00000800 63 5f 5f 5f 76 33 5f 73 72 63 5f 73 79 73 74 65 |c___v3_src_syste|
00000810 6d 5f 65 72 72 6f 72 2e 63 63 5f 30 30 30 30 30 |m_error.cc_00000|
00000820 30 30 30 5f 35 39 44 36 31 37 37 43 32 31 73 79 |000_59D6177C21sy|
Jakub Jalinek has commented in 41405:
The difference you are seeing is likely related to different random seed, you'd
need to pass the same
-frandom-seed=XXXX in both stage2 and stage3 builds...
However, this is new since approx. 151920.
--
Summary: in-tree GMP/MPFR requires c++ as stage 1 lang; 2 object
compares fail.
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: developer at sandoe-acoustics dot co dot uk
GCC build triplet: *-apple-darwin{8,9}
GCC host triplet: *-apple-darwin{8,9}
GCC target triplet: *-apple-darwin{8,9}
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41446
