Cannot build libboost_filesystem.a for boost_1.68.0 with qnx7.0based qcc

Question

Used the following options

./bootstrap.sh--with-toolset=qcc
b2 toolset=qcc target-os=qnxnto threadapi=pthread link=static -l240 --layout=system --without-python cxxflags="-Vgcc_ntoarmv7le -Y_gpp -Wc,-std=gnu++0x -D_LITTLE_ENDIAN" linkflags="-Vgcc_ntoarmv7le -Y_gpp -lang-c++" -j7

seeing the following error

qcc.compile.c++ bin.v2\libs\filesystem\build\qcc\release\link-static\operations.o libs\filesystem\src\operations.cpp: In function 'void boost::filesystem::detail::permissions(const boost::filesystem::path&, boost::filesystem::perms, boost::system::error_code*)': libs\filesystem\src\operations.cpp:1486:11: error: '::fchmodat' has not been declared
       if (::fchmodat(AT_FDCWD, p.c_str(), mode_cast(prms),
           ^ cc: C:/Users/bilahari.akkiraju/qnx700/host/win64/x86_64/usr/lib/gcc/arm-unknown-nto-qnx7.0.0eabi/5.4.0/cc1plus caught signal 1
    "QCC" -Wc,-ftemplate-depth-128 -Vgcc_ntoarmv7le -Y_gpp -Wc,-std=gnu++0x -D_LITTLE_ENDIAN -O3 -Wc,-finline-functions -Wc,-Wno-inline -DBOOST_ALL_NO_LIB=1 -DBOOST_FILESYSTEM_STATIC_LINK=1 -DBOOST_SYSTEM_STATIC_LINK=1 -DNDEBUG -I"." -c -o "bin.v2\libs\filesystem\build\qcc\release\link-static\operations.o" "libs\filesystem\src\operations.cpp"
...failed qcc.compile.c++ bin.v2\libs\filesystem\build\qcc\release\link-static\operations.o... ...skipped <pbin.v2\libs\filesystem\build\qcc\release\link-static>libboost_filesystem.a for lack of <pbin.v2\libs\filesystem\build\qcc\release\link-static>operations.o... ...skipped <pstage\lib>libboost_filesystem.a for lack of <pbin.v2\libs\filesystem\build\qcc\release\link-static>libboost_filesystem.a ...failed updating 1 target ...skipped 2 targets...

Building on my windows 10 machine , any idea on what can be done to fix the issue ?

score 2 · Answer 1 · answered Nov 12 '18 at 14:09

I have the same problem. This is caused by boost calling a function that does not exist in QNX 7 or older.

There is a bug entry for this issue with a possible solution: https://github.com/boostorg/filesystem/issues/89

In short: add the following line to the function "permissions" in "filesystem/src/operations.cpp" for Boost 1.68.0 at line 1482:

&& !(defined(__QNX__) && (_NTO_VERSION <= 700)) \

Be aware that there is a version check for QNX 7 or older (_NTO_VERSION). Modify for future versions (see _NTO_VERSION description).

Best regards

Cannot build libboost_filesystem.a for boost_1.68.0 with qnx7.0based qcc

1 Answers1