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Hi there, while compiling code with QNX SDP 7.0 (GCC 5.4) I get an error:

qcc.compile.c++ C:\boost\bin.v2\libs\thread\build\qcc-5.4\dbg\lnk-sttc\trgt-os-qnxnt\thrdp-pthrd\vsblt-hdn\future.o

"QCC" -lang-c++ -Wc,-ftemplate-depth-128 -fvisibility-inlines-hidden -Vgcc_ntoaarch64le_cxx -fPIC -gstabs+ -O0 -Wc,-fno-inline -Wc,-Wall -fvisibility=hidden -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_STATIC_LINK=1 -DBOOST_THREAD_BUILD_LIB=1 -DBOOST_THREAD_DONT_USE_CHRONO -DBOOST_THREAD_POSIX -I"." -c -o "C:\boost\bin.v2\libs\thread\build\qcc-5.4\dbg\lnk-sttc\trgt-os-qnxnt\thrdp-pthrd\vsblt-hdn\future.o" "libs\thread\src\future.cpp"

libs\thread\src\future.cpp:1:0: error: target system does not support the 'stabs' debug format // (C) Copyright 2012 Vicente J. Botet Escriba ^ cc: c:/qnx700//host/win64/x86_64/usr/lib/gcc/aarch64-unknown-nto-qnx7.0.0/5.4.0/cc1plus caught signal 1 ...failed qcc.compile.c++ C:\boost\bin.v2\libs\thread\build\qcc-5.4\dbg\lnk-sttc\trgt-os-qnxnt\thrdp-pthrd\vsblt-hdn\future.o...

I investigated the problem and found out that the qcc.jam specifies the -gstabs+ flag. https://github.com/boostorg/build/blob/a83f94aad28b0096dbe5d870e1c8f158adf0c922/src/tools/qcc.jam#L51 https://github.com/boostorg/build/blob/a83f94aad28b0096dbe5d870e1c8f158adf0c922/src/tools/qcc.jam#L167

The QCC compiler wrapper docs describe only -g as compiler argument (see QNX 7.0, QNX 6.5).

I have patched the file with the attached patch file (locally): boost_build_qcc_fix_debug_build_parameter.patch.txt

Thank you for your contributions. Main development of B2 has moved to https://github.com/bfgroup/b2 This issue has been automatically marked as "transition" to indicate the potential for needing transition to the new B2 development project.

Fixed externally thanks to @johnmcfarlane