[Q] What is proper way edit clang flags ?

Bacardi · **Author**

I'm very noob on this MM:S plugin compiling.

This far on Linux, I have follow this tutorial Building SourceMod
and I managed build whole SourceMod, using clang.

Spoiler

PHP Code:


			
$ dpkg --list | grep compiler

ii  clang                                      1:10.0-50~exp1                        amd64        C, C++ and Objective-C compiler (LLVM based)

ii  clang-10                                   1:10.0.0-4ubuntu1                     amd64        C, C++ and Objective-C compiler

ii  g++                                        4:9.3.0-1ubuntu2                      amd64        GNU C++ compiler

ii  g++-9                                      9.4.0-1ubuntu1~20.04.2                amd64        GNU C++ compiler

ii  g++-9-multilib                             9.4.0-1ubuntu1~20.04.2                amd64        GNU C++ compiler (multilib support)

ii  g++-multilib                               4:9.3.0-1ubuntu2                      amd64        GNU C++ compiler (multilib files)

ii  gcc                                        4:9.3.0-1ubuntu2                      amd64        GNU C compiler

ii  gcc-9                                      9.4.0-1ubuntu1~20.04.2                amd64        GNU C compiler

ii  gcc-9-multilib                             9.4.0-1ubuntu1~20.04.2                amd64        GNU C compiler (multilib support)

ii  gcc-multilib                               4:9.3.0-1ubuntu2                      amd64        GNU C compiler (multilib files)

ii  libllvm10:amd64                            1:10.0.0-4ubuntu1                     amd64        Modular compiler and toolchain technologies, runtime library

ii  libllvm12:amd64                            1:12.0.0-3ubuntu1~20.04.5             amd64        Modular compiler and toolchain technologies, runtime library

ii  libxkbcommon0:amd64                        0.10.0-1                              amd64        library interface to the XKB compiler - shared library

ii  llvm-10                                    1:10.0.0-4ubuntu1                     amd64        Modular compiler and toolchain technologies

ii  llvm-10-dev                                1:10.0.0-4ubuntu1                     amd64        Modular compiler and toolchain technologies, libraries and headers

ii  llvm-10-runtime                            1:10.0.0-4ubuntu1                     amd64        Modular compiler and toolchain technologies, IR interpreter

ii  llvm-10-tools                              1:10.0.0-4ubuntu1                     amd64        Modular compiler and toolchain technologies, tools

Next I wanted to try compile metamod source plugin sample
.../alliedmodders/metamod-source/samples/s1_sample_mm/

PHP Code:


			
.../alliedmodders/metamod-source/samples/s1_sample_mm/build$ python ../configure.py --sdks css

Checking CC compiler (vendor test gcc)... ['clang', 'test.c', '-o', 'test']

found clang version 10.0

Checking CXX compiler (vendor test gcc)... ['clang++', 'test.cpp', '-o', 'testp']

found clang version 10.0



.../alliedmodders/metamod-source/samples/s1_sample_mm/build$ ambuild

Build fail to this clang compiler warning

Spoiler

After googling around and make edit in file, I bypassed that problem. Worked
.../alliedmodders/metamod-source/samples/s1_sample_mm/AMBuildScript

Code:

proj_c_flags = [
  '-Wall',
  '-Wno-non-virtual-dtor',
  '-Wno-overloaded-virtual',
  '-Werror',
  '-Wno-implicit-int-float-conversion',
  '-Wno-unused',
]

PHP Code:


			
.../alliedmodders/metamod-source/samples/s1_sample_mm/build$ ambuild

Spawned worker (pid: 3542)

[3542] clang++ -Wall -Wno-non-virtual-dtor -Wno-overloaded-virtual -Werror -Wno-implicit-int-float-conversion -Wno-unused -fPIC -fno-exceptions -fno-rtti -msse -fno-strict-aliasing -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11 -Wno-delete-non-virtual-dtor -Wno-unused-private-field -Wno-deprecated-register -m32 -g3 -Wno-expansion-to-defined -Dstricmp=strcasecmp -D_stricmp=strcasecmp -D_snprintf=snprintf -D_vsnprintf=vsnprintf -D_alloca=alloca -DGNUC -DPOSIX -DLINUX -D_LINUX -DSE_EPISODEONE=1 -DSE_ORANGEBOX=3 -DSE_CSS=6 -DSE_HL2DM=7 -DSE_DODS=8 -DSE_SDK2013=9 -DSE_TF2=11 -DSE_LEFT4DEAD=12 -DSE_NUCLEARDAWN=13 -DSE_LEFT4DEAD2=15 -DSE_DARKMESSIAH=2 -DSE_ALIENSWARM=16 -DSE_BLOODYGOODTIME=4 -DSE_EYE=5 -DSE_CSGO=21 -DSE_DOTA=22 -DSE_PORTAL2=17 -DSE_BLADE=18 -DSE_INSURGENCY=19 -DSE_DOI=20 -DSE_CONTAGION=14 -DSE_BMS=10 -DSOURCE_ENGINE=6 -DCOMPILER_GCC -I /home/amd/Asiakirjat/alliedmodders/metamod-source/samples/s1_sample_mm -I /home/amd/Asiakirjat/alliedmodders/metamod-source/core -I /home/amd/Asiakirjat/alliedmodders/metamod-source/core/sourcehook -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/engine -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/mathlib -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/vstdlib -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/tier0 -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/tier1 -I /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/public/game/server -H -c /home/amd/Asiakirjat/alliedmodders/metamod-source/samples/s1_sample_mm/sample_mm.cpp -o sample_mm.o

[3542] clang++ sample_mm.o libvstdlib_srv.so libtier0_srv.so -shared -m32 /home/amd/Asiakirjat/alliedmodders/hl2sdk-css/lib/linux/tier1_i486.a -shared -o sample_mm2.css.so

Build succeeded.

Question is, Is this proper way to remove/add clang flags or is there another/easier way sampling flags ?

*edit
I see, there have made workaround in sourcemod build
https://github.com/alliedmodders/sou...b1ce7011aa8b64

PHP Code:


			
   # Work around SDK warnings.

    if cxx.version >= 'clang-10.0':

        cxx.cflags += [

            '-Wno-implicit-int-float-conversion',

            '-Wno-tautological-overlap-compare',

        ]