backtrace_posix.cc fails to compile on AIX

[mhdawson]

• Version: master
• Platform: AIX
• Subsystem: core

Compile failure on AIX: https://ci.nodejs.org/job/node-test-commit-aix/nodes=aix61-ppc64/242/console

  g++ '-DNODE_ARCH="ppc64"' '-DNODE_PLATFORM="aix"' '-DNODE_WANT_INTERNALS=1' '-DV8_DEPRECATION_WARNINGS=1' '-DNODE_USE_V8_PLATFORM=1' '-DNODE_HAVE_I18N_SUPPORT=1' '-DNODE_HAVE_SMALL_ICU=1' '-DHAVE_INSPECTOR=1' '-DV8_INSPECTOR_USE_STL=1' '-DHAVE_OPENSSL=1' '-D__POSIX__' '-D_LINUX_SOURCE_COMPAT' '-DUCONFIG_NO_TRANSLITERATION=1' '-DUCONFIG_NO_SERVICE=1' '-DUCONFIG_NO_REGULAR_EXPRESSIONS=1' '-DU_ENABLE_DYLOAD=0' '-DU_STATIC_IMPLEMENTATION=1' '-DU_HAVE_STD_STRING=0' '-DUCONFIG_NO_BREAK_ITERATION=0' '-DUCONFIG_NO_CONVERSION=1' '-DHTTP_PARSER_STRICT=0' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' -I../src -I../tools/msvs/genfiles -I../deps/uv/src/ares -I/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/obj/gen -I../deps/v8_inspector -I../deps/v8_inspector/deps/wtf -I/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/obj/gen/blink -I../deps/v8/include -I../deps/icu-small/source/i18n -I../deps/icu-small/source/common -I../deps/openssl/openssl/include -I../deps/zlib -I../deps/http_parser -I../deps/cares/include -I../deps/uv/include  -pthread -Wall -Wextra -Wno-unused-parameter -maix64 -O3 -fno-omit-frame-pointer -fno-rtti -fno-exceptions -std=gnu++0x -MMD -MF /home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/.deps//home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/obj.target/node_base/src/backtrace_posix.o.d.raw   -c -o /home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/obj.target/node_base/src/backtrace_posix.o ../src/backtrace_posix.cc
../src/backtrace_posix.cc:16:22: fatal error: execinfo.h: No such file or directory
 #include 
                      ^

Related to: #6734

Have discussed fix with @gireeshpunathil , will test out PR soon

[Trott]

FWIW, it appears that the file has 0% test coverage: https://node-core-coverage.addaleax.net/coverage-475dc439e21dd257/cxxcoverage._home_node-core-coverage_node-core-coverage_workdir_node_src_backtrace_posix.cc.html

(Caveat: That test coverage data is for Linux only, possibly other caveats I'm not aware of.)

So, uh, if the fix for this also gets at least some test coverage happening there, that would be a nice benefit.

[bnoordhuis]

There is test coverage in test/abort but that doesn't run on the CI.

[mhdawson]

PR to resolve compile failure: #7544