Hi, Does anybody have experience compiling the Ruby libv8 JavaScript engine (https://github.com/cowboyd/libv8) on OpenBSD 5.5?
It says it can't find a supported compiler despite repeated attempts to point it to `gcc` or `g++` 4.8.2 or 4.6.4 (https://github.com/cowboyd/libv8#bring-your-own-compiler), either via the environment variable below or through symlinking: % export cxx=/usr/local/bin/eg++ % /usr/local/bin/eg++ -v Using built-in specs. COLLECT_GCC=/usr/local/bin/eg++ COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/i386-unknown-openbsd5.5/4.8.2/lto-wrapper Target: i386-unknown-openbsd5.5 Configured with: /usr/obj/gcc-4.8.2/gcc-4.8.2/configure --enable-libgcj --without-jar --verbose --program-transform-name='s,^,e,' --disable-nls --disable-checking --with-system-zlib --disable-libmudflap --disable-libgomp --disable-tls --with-as=/usr/bin/as --with-ld=/usr/bin/ld --with-gnu-ld --with-gnu-as --enable-threads=posix --enable-wchar_t --with-gmp=/usr/local --enable-languages=c,c++,fortran,objc,java,ada --disable-libstdcxx-pch --enable-cpp --enable-shared --prefix=/usr/local --sysconfdir=/etc --mandir=/usr/local/man --infodir=/usr/local/info --localstatedir=/var --disable-silent-rules Thread model: posix gcc version 4.8.2 (GCC) % gem install libv8 Building native extensions. This could take a while... ERROR: Error installing libv8: ERROR: Failed to build gem native extension. /home/dev/.rubies/ruby-2.1.1/bin/ruby extconf.rb creating Makefile Compiling v8 for ia32 Using python 2.7.6 Using compiler: /usr/local/bin/eg++ (GCC version 5.5) Unable to find a compiler officially supported by v8. It is recommended to use GCC v4.4 or higher In file included from ../src/mark-compact.h:32:0, from ../src/incremental-marking.h:33, from ../src/heap.h:35, from ../src/elements.h:33, from ../src/objects-inl.h:38, from ../src/v8.h:60, from ../src/accessors.cc:28: ../src/spaces.h: In member function 'bool v8::internal::MemoryChunk::TryParallelSweeping()': ../src/spaces.h:467:62: error: invalid conversion from 'intptr_t* {aka long int*}' to 'volatile Atomic32* {aka volatile int*}' [-fpermissive] return NoBarrier_CompareAndSwap(¶llel_sweeping_, 1, 0) == 1; ^ In file included from ../src/v8.h:62:0, from ../src/accessors.cc:28: ../src/heap-inl.h: In member function 'intptr_t v8::internal::Heap::AdjustAmountOfExternalAllocatedMemory(intptr_t)': ../src/heap-inl.h:516:49: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=] reinterpret_cast(isolate())); ^ ../src/heap-inl.h:516:49: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long int' [-Wformat=] ../src/heap-inl.h:516:49: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'intptr_t {aka long int}' [-Wformat=] gmake[1]: *** [/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/v8_base/src/accessors.o] Error 1 gmake: *** [ia32.release] Error 2 /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound) from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:35:in `each' from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:35:in `verify_installation!' from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:26:in `install!' from extconf.rb:7:in `' GYP_GENERATORS=make build/gyp/gyp --generator-output="out" build/all.gyp -Ibuild/standalone.gypi --depth=. -Dv8_target_arch=ia32 -S.ia32 -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3 -Dwerror='' gmake[1]: Entering directory '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out' CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/allocation.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/bignum.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/bignum-dtoa.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/cached-powers.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/conversions.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/diy-fp.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/dtoa.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/fast-dtoa.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/fixed-dtoa.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/once.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/preparse-data.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/preparser.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/preparser-api.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/scanner.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/strtod.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/token.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/unicode.o CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/utils.o AR(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/tools/gyp/libpreparser_lib.a CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser/preparser/preparser-process.o LINK(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/preparser CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/v8_base/src/accessors.o tools/gyp/v8_base.target.ia32.mk:222: recipe for target '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/v8_base/src/accessors.o' failed gmake[1]: Leaving directory '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out' Makefile:195: recipe for target 'ia32.release' failed extconf failed, exit code 1 Gem files will remain installed in /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7 for inspection. Results logged to /home/dev/.gem/ruby/2.1.1/extensions/x86-openbsd-5.5/2.1.0-static/libv8-3.16.14.7/gem_make.out OpenBSD's default compiler is 4.2.1 and produces the following: # gcc -v Reading specs from /usr/lib/gcc-lib/i386-unknown-openbsd5.5/4.2.1/specs Target: i386-unknown-openbsd5.5 Configured with: OpenBSD/i386 system compiler Thread model: posix gcc version 4.2.1 20070719 % gem install libv8 Building native extensions. This could take a while... ERROR: Error installing libv8: ERROR: Failed to build gem native extension. /home/dev/.rubies/ruby-2.1.1/bin/ruby extconf.rb creating Makefile Compiling v8 for ia32 Using python 2.7.6 Using compiler: /usr/bin/c++ (GCC version 5.5) Unable to find a compiler officially supported by v8. It is recommended to use GCC v4.4 or higher cc1plus: error: unrecognized command line option "-Wno-unused-local-typedefs" gmake[1]: *** [/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/allocation.o] Error 1 gmake: *** [ia32.release] Error 2 /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound) from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:35:in `each' from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:35:in `verify_installation!' from /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/ext/libv8/location.rb:26:in `install!' from extconf.rb:7:in `' GYP_GENERATORS=make build/gyp/gyp --generator-output="out" build/all.gyp -Ibuild/standalone.gypi --depth=. -Dv8_target_arch=ia32 -S.ia32 -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3 -Dwerror='' gmake[1]: Entering directory '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out' CXX(target) /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/allocation.o tools/gyp/preparser_lib.target.ia32.mk:111: recipe for target '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out/ia32.release/obj.target/preparser_lib/src/allocation.o' failed gmake[1]: Leaving directory '/home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7/vendor/v8/out' Makefile:195: recipe for target 'ia32.release' failed extconf failed, exit code 1 Gem files will remain installed in /home/dev/.gem/ruby/2.1.1/gems/libv8-3.16.14.7 for inspection. Results logged to /home/dev/.gem/ruby/2.1.1/extensions/x86-openbsd-5.5/2.1.0-static/libv8-3.16.14.7/gem_make.out Thanks! O.D.
