Hi all, This is Azure VM with Ubuntu 18.04, the 'bash build.sh' failed with below error. I post the required information below also. This is Azure Standard_NC24r VM size. So it has GPU and RDMA enabled. I don't know what it means "cc: error: unrecognized command line option '-Wcast-function-type'; did you mean '-Wbad-function-cast'?" I did not modify any file. If you need any, please let me know. <how to repro> %git clone <repo of rdma-core> %cd rdma-core %bash build. sh <error> root@juhlee-137339034-1:~/rdma-core# bash build.sh -- Could NOT find cython (missing: CYTHON_EXECUTABLE CYTHON_VERSION_STRING) -- Could NOT find pandoc (missing: PANDOC_EXECUTABLE PANDOC_VERSION_STRING) -- Could NOT find rst2man (missing: RST2MAN_EXECUTABLE RST2MAN_VERSION_STRING) CMake Error at /usr/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE) Call Stack (most recent call first): /usr/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-3.10/Modules/FindPkgConfig.cmake:36 (find_package_handle_standard_args) CMakeLists.txt:436 (FIND_PACKAGE) -- Configuring incomplete, errors occurred! See also "/root/rdma-core/build/CMakeFiles/CMakeOutput.log". See also "/root/rdma-core/build/CMakeFiles/CMakeError.log". root@juhlee-137339034-1:~/rdma-core# <System info> root@juhlee-137339034-1:~/rdma-core# uname -r 4.18.0-1024-azure root@juhlee-137339034-1:~/rdma-core# more /etc/os-release NAME="Ubuntu" VERSION="18.04.2 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.2 LTS" VERSION_ID="18.04" HOME_URL="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ubuntu.com%2F&data=02%7C01%7Cjuhlee%40microsoft.com%7C3275e088e3d6452057dd08d71876d722%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637004771040425693&sdata=z12ZYrq8XWY3J6SZnGiS11FKUyqgXYGVGchYQfH%2BrnY%3D&reserved=0"; SUPPORT_URL="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhelp.ubuntu.com%2F&data=02%7C01%7Cjuhlee%40microsoft.com%7C3275e088e3d6452057dd08d71876d722%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637004771040425693&sdata=djbqW%2BCC5dKJJ0OAjFUjN8KJS6vG%2FV1VIQBjgLADuWY%3D&reserved=0"; BUG_REPORT_URL="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.launchpad.net%2Fubuntu%2F&data=02%7C01%7Cjuhlee%40microsoft.com%7C3275e088e3d6452057dd08d71876d722%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637004771040435690&sdata=YTc5fOFHEPujyIDR4%2F%2BDEXmBwOw9lBqJ5XI8NvJg82s%3D&reserved=0"; PRIVACY_POLICY_URL="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ubuntu.com%2Flegal%2Fterms-and-policies%2Fprivacy-policy&data=02%7C01%7Cjuhlee%40microsoft.com%7C3275e088e3d6452057dd08d71876d722%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637004771040435690&sdata=DK4jNF2oql4f9EgW5umea6ngRz1vOCEOON3MNK5QSlY%3D&reserved=0"; VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic root@juhlee-137339034-1:~/rdma-core# < CMakeError.log file contents> root@juhlee-137339034-1:~/rdma-core# more /root/rdma-core/build/CMakeFiles/CMakeError.log Performing C SOURCE FILE Test HAVE_C_WCAST_FUNCTION failed with the following output: Change Dir: /root/rdma-core/build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_d2ba5/fast" /usr/bin/make -f CMakeFiles/cmTC_d2ba5.dir/build.make CMakeFiles/cmTC_d2ba5.dir/build make[1]: Entering directory '/root/rdma-core/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_d2ba5.dir/src.c.o /usr/bin/cc -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wmissing-declarations -Wwrite-strings -Wformat=2 -DHAVE_C_WCAST_FUNCTION -Wcast-function-type -o CMakeFiles/cmTC_d2ba5 .dir/src.c.o -c /root/rdma-core/build/CMakeFiles/CMakeTmp/src.c cc: error: unrecognized command line option '-Wcast-function-type'; did you mean '-Wbad-function-cast'? CMakeFiles/cmTC_d2ba5.dir/build.make:65: recipe for target 'CMakeFiles/cmTC_d2ba5.dir/src.c.o' failed make[1]: *** [CMakeFiles/cmTC_d2ba5.dir/src.c.o] Error 1 make[1]: Leaving directory '/root/rdma-core/build/CMakeFiles/CMakeTmp' Makefile:126: recipe for target 'cmTC_d2ba5/fast' failed make: *** [cmTC_d2ba5/fast] Error 2 Source file was: int main(void) { return 0; } Determining if the pthread_create exist failed with the following output: Change Dir: /root/rdma-core/build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_ec514/fast" /usr/bin/make -f CMakeFiles/cmTC_ec514.dir/build.make CMakeFiles/cmTC_ec514.dir/build make[1]: Entering directory '/root/rdma-core/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_ec514.dir/CheckSymbolExists.c.o /usr/bin/cc -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wmissing-declarations -Wwrite-strings -Wformat=2 -Wformat-nonliteral -Wredundant-decls -Wdate-time -Wnested-externs -Wsh adow -o CMakeFiles/cmTC_ec514.dir/CheckSymbolExists.c.o -c /root/rdma-core/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_ec514 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_ec514.dir/link.txt --verbose=1 /usr/bin/cc -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wmissing-declarations -Wwrite-strings -Wformat=2 -Wformat-nonliteral -Wredundant-decls -Wdate-time -Wnested-externs -Wsha dow -Wl,--as-needed -Wl,--no-undefined CMakeFiles/cmTC_ec514.dir/CheckSymbolExists.c.o -o cmTC_ec514 CMakeFiles/cmTC_ec514.dir/CheckSymbolExists.c.o: In function `main': CheckSymbolExists.c:(.text+0x1b): undefined reference to `pthread_create' collect2: error: ld returned 1 exit status CMakeFiles/cmTC_ec514.dir/build.make:97: recipe for target 'cmTC_ec514' failed make[1]: *** [cmTC_ec514] Error 1 make[1]: Leaving directory '/root/rdma-core/build/CMakeFiles/CMakeTmp' Makefile:126: recipe for target 'cmTC_ec514/fast' failed make: *** [cmTC_ec514/fast] Error 2 File /root/rdma-core/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c: /* */ #include <pthread.h> int main(int argc, char** argv) { (void)argv; #ifndef pthread_create return ((int*)(&pthread_create))[argc]; #else (void)argc; return 0; #endif } Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /root/rdma-core/build/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_cad04/fast" /usr/bin/make -f CMakeFiles/cmTC_cad04.dir/build.make CMakeFiles/cmTC_cad04.dir/build make[1]: Entering directory '/root/rdma-core/build/CMakeFiles/CMakeTmp' root@juhlee-137339034-1:~/rdma-core#
