Package: libv8 Version: 3.7.12.22-3 Severity: important Tags: sid wheezy User: debian-...@lists.debian.org Usertags: ftbfs-gcc-4.7
The package fails to build in a test rebuild on at least amd64 with gcc-4.7/g++-4.7, but succeeds to build with gcc-4.6/g++-4.6. The severity of this report may be raised before the wheezy release. ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] The full build log can be found at: http://people.debian.org/~lucas/logs/2012/03/29-clang-gcc47/unstable-gcc47/libv8_3.7.12.22-3_unstable-gcc47.log The last lines of the build log are at the end of this report. Some hints on fixing these issues can be found at http://gcc.gnu.org/gcc-4.7/porting_to.html To build with GCC 4.7, either set CC=gcc-4.7 CXX=g++-4.7 explicitly, or install the gcc, g++, gfortran, ... packages from experimental. [...] g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/hydrogen-instructions.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/hydrogen-instructions.o ../src/hydrogen-instructions.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/ic.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/ic.o ../src/ic.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/incremental-marking.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/incremental-marking.o ../src/incremental-marking.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/inspector.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/inspector.o ../src/inspector.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/interpreter-irregexp.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/interpreter-irregexp.o ../src/interpreter-irregexp.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/jsregexp.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/jsregexp.o ../src/jsregexp.cc g++ '-DENABLE_DEBUGGER_SUPPORT' '-DV8_TARGET_ARCH_X64' '-DBUILDING_V8_SHARED' '-DV8_SHARED' -I../src -Wall -Werror -W -Wno-unused-parameter -Wnon-virtual-dtor -pthread -fno-rtti -fno-exceptions -pedantic -ansi -fvisibility=hidden -fPIC -fdata-sections -ffunction-sections -fomit-frame-pointer -O3 -MMD -MF /«PKGBUILDDIR»/out/x64.release/.deps//«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/isolate.o.d.raw -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -Wall -Wno-unused-but-set-variable -c -o /«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/isolate.o ../src/isolate.cc In file included from ../src/handles.cc:40:0: ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = char; SubjectChar = char]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = char; SubjectChar = short unsigned int]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] cc1plus: all warnings being treated as errors make[2]: *** [/«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/handles.o] Error 1 make[2]: *** Waiting for unfinished jobs.... In file included from ../src/jsregexp.cc:36:0: ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = char; SubjectChar = char]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = char; SubjectChar = short unsigned int]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = short unsigned int; SubjectChar = char]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] ../src/string-search.h: In member function 'void v8::internal::StringSearch<PatternChar, SubjectChar>::PopulateBoyerMooreTable() [with PatternChar = short unsigned int; SubjectChar = short unsigned int]': ../src/string-search.h:401:3: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow] cc1plus: all warnings being treated as errors make[2]: *** [/«PKGBUILDDIR»/out/x64.release/obj.target/v8_base/src/jsregexp.o] Error 1 make[2]: Leaving directory `/«PKGBUILDDIR»/out' make[1]: *** [x64.release] Error 2 make: *** [debian/stamp-makefile-build] Error 2 dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2
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