can't compile on windows, using clang

[AndreyMlashkin]

It is related to this issue: conan-io/conan-center-index#9834

Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.runtime=MD
compiler.version=12
cppstd=17
os=Windows
os_build=Windows
pictofitstudio:build_type=RelWithDebInfo
pictofitcore:build_type=RelWithDebInfo
[options]
pictofitstudio*:with_sentry=True
[build_requires]
[env]
CC=clang-cl
CONAN_CMAKE_GENERATOR=Ninja
CXX=clang-cl

Logs (Include/Attach if Applicable)

Click to expand log

openssl/1.1.1m: Calling build()
Found Visual Studio 16
**********************************************************************
** Visual Studio 2019 Developer Command Prompt v16.11.11
** Copyright (c) 2021 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
openssl/1.1.1m: using target: VC-conan-Release-Windows-x86_64-clang-12 -> VC-WIN64A
openssl/1.1.1m: my %targets = (
    "VC-conan-Release-Windows-x86_64-clang-12" => {
        inherit_from => [ "VC-WIN64A" ],
        cflags => add("-m64 -O3 -MD"),
        cxxflags => add("-m64 -O3 -MD"),
        defines => add("NDEBUG"),
        includes => add("D:/.conan/fb39bb/1/include"),
        lflags => add("-m64"),



        cc => "clang-cl",
        cxx => "clang-cl",



    },
);

openssl/1.1.1m: ['"VC-conan-Release-Windows-x86_64-clang-12"', 'no-shared', '--prefix="D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc"', '--openssldir="D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\res"', 'no-unit-test', 'threads', 'PERL=D:\\.conan\\fb39bb\\1\\bin\\perl.exe', 'no-tests', '--release']
WARN: replace_in_file didn't find pattern '/MTd ' in 'Configurations\10-main.conf' file.
WARN: replace_in_file didn't find pattern '/MTd"' in 'Configurations\10-main.conf' file.

----Running------
> D:\.conan\fb39bb\1\bin\perl.exe ./Configure "VC-conan-Release-Windows-x86_64-clang-12" no-shared --prefix="D:\.conan\storage\openssl\1.1.1m\_\_\package\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc" --openssldir="D:\.conan\storage\openssl\1.1.1m\_\_\package\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\res" no-unit-test threads PERL=D:\.conan\fb39bb\1\bin\perl.exe no-tests --release
-----------------
Configuring OpenSSL version 1.1.1m (0x101010dfL) for VC-conan-Release-Windows-x86_64-clang-12
Using os-specific seed configuration
Creating configdata.pm
Creating makefile

**********************************************************************
***                                                                ***
***   OpenSSL has been successfully configured                     ***
***                                                                ***
***   If you encounter a problem while building, please open an    ***
***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
***   and include the output from the following command:           ***
***                                                                ***
***       perl configdata.pm --dump                                ***
***                                                                ***
***   (If you are new to OpenSSL, you might want to consult the    ***
***   'Troubleshooting' section in the INSTALL file first)         ***
***                                                                ***
**********************************************************************

----Running------
> nmake
-----------------

Microsoft (R) Program Maintenance Utility Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        "D:\.conan\fb39bb\1\bin\perl.exe" "-I." -Mconfigdata "util\dofile.pl"  "-omakefile" "include\crypto\bn_conf.h.in" > include\crypto\bn_conf.h
        "D:\.conan\fb39bb\1\bin\perl.exe" "-I." -Mconfigdata "util\dofile.pl"  "-omakefile" "include\crypto\dso_conf.h.in" > include\crypto\dso_conf.h
        "D:\.conan\fb39bb\1\bin\perl.exe" "-I." -Mconfigdata "util\dofile.pl"  "-omakefile" "include\openssl\opensslconf.h.in" > include\openssl\opensslconf.h
        "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64\nmake.exe" /                   depend && "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64\nmake.exe" /                   _all

Microsoft (R) Program Maintenance Utility Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.


Microsoft (R) Program Maintenance Utility Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        "clang-cl"  /Zi /Fdossl_static.pdb / /Zl /Gs0 /GF /Gy -m64 -O3 -MD /W3 /wd4090 /nologo /O2 /I "." /I "include" -D"L_ENDIAN" -D"OPENSSL_PIC" -D"OPENSSL_CPUID_OBJ" -D"OPENSSL_IA32_SSE2" -D"OPENSSL_BN_ASM_MONT" -D"OPENSSL_BN_ASM_MONT5" -D"OPENSSL_BN_ASM_GF2m" -D"SHA1_ASM" -D"SHA256_ASM" -D"SHA512_ASM" -D"KECCAK1600_ASM" -D"RC4_ASM" -D"MD5_ASM" -D"AESNI_ASM" -D"VPAES_ASM" -D"GHASH_ASM" -D"ECP_NISTZ256_ASM" -D"X25519_ASM" -D"POLY1305_ASM" -D"OPENSSLDIR=\"D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\res\"" -D"ENGINESDIR=\"D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\lib\\engines-1_1\"" -D"OPENSSL_SYS_WIN32" -D"WIN32_LEAN_AND_MEAN" -D"UNICODE" -D"_UNICODE" -D"_CRT_SECURE_NO_DEPRECATE" -D"_WINSOCK_DEPRECATED_NO_WARNINGS" -D"NDEBUG" -D"NDEBUG" -I"D:/.conan/fb39bb/1/include"  -c /Foapps\app_rand.obj "apps\app_rand.c"
clang-cl: error: cannot specify '/Foapps\app_rand.obj' when compiling multiple source files
clang-cl: warning: /: 'linker' input unused [-Wunused-command-line-argument]
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\Llvm\x64\bin\clang-cl.EXE"' : return code '0x1'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64\nmake.exe"' : return code '0x2'

[t8m]

This is an unsupported configuration. Supporting it would be a new feature.

[ajkhoury]

@AndreyMlashkin I ran into a similar problem which is why I decided to focus on this PR: #20153

[levitte]

This is an unsupported configuration. Supporting it would be a new feature.

Er.... they are making their own config targets with inheritance from VC-WIN64A. That's a supported feature!

Now, looking more closely at what's going on, this seems to be the indicative bit:

        "clang-cl"  /Zi /Fdossl_static.pdb / /Zl /Gs0 /GF /Gy -m64 -O3 -MD /W3 /wd4090 /nologo /O2 /I "." /I "include" -D"L_ENDIAN" -D"OPENSSL_PIC" -D"OPENSSL_CPUID_OBJ" -D"OPENSSL_IA32_SSE2" -D"OPENSSL_BN_ASM_MONT" -D"OPENSSL_BN_ASM_MONT5" -D"OPENSSL_BN_ASM_GF2m" -D"SHA1_ASM" -D"SHA256_ASM" -D"SHA512_ASM" -D"KECCAK1600_ASM" -D"RC4_ASM" -D"MD5_ASM" -D"AESNI_ASM" -D"VPAES_ASM" -D"GHASH_ASM" -D"ECP_NISTZ256_ASM" -D"X25519_ASM" -D"POLY1305_ASM" -D"OPENSSLDIR=\"D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\res\"" -D"ENGINESDIR=\"D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\lib\\engines-1_1\"" -D"OPENSSL_SYS_WIN32" -D"WIN32_LEAN_AND_MEAN" -D"UNICODE" -D"_UNICODE" -D"_CRT_SECURE_NO_DEPRECATE" -D"_WINSOCK_DEPRECATED_NO_WARNINGS" -D"NDEBUG" -D"NDEBUG" -I"D:/.conan/fb39bb/1/include"  -c /Foapps\app_rand.obj "apps\app_rand.c"
clang-cl: error: cannot specify '/Foapps\app_rand.obj' when compiling multiple source files
clang-cl: warning: /: 'linker' input unused [-Wunused-command-line-argument]

I believe that both errors are caused by the lonely / near the beginning of that command. That seems very odd, I wonder where that comes from:

"clang-cl" /Zi /Fdossl_static.pdb ===THIS===> / <=== /Zl /Gs0 /GF ...

[levitte]

Another thing to note is this:

openssl/1.1.1m: ['"VC-conan-Release-Windows-x86_64-clang-12"', 'no-shared', '--prefix="D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc"', '--openssldir="D:\\.conan\\storage\\openssl\\1.1.1m\\_\\_\\package\\e5dfaa2a6d0ff8915bb91aa1f1e2569e87e2b3dc\\res"', 'no-unit-test', 'threads', 'PERL=D:\\.conan\\fb39bb\\1\\bin\\perl.exe', 'no-tests', '--release']
WARN: replace_in_file didn't find pattern '/MTd ' in 'Configurations\10-main.conf' file.
WARN: replace_in_file didn't find pattern '/MTd"' in 'Configurations\10-main.conf' file.

If I may venture a guess, something isn't quite right somewhere in there. I suppose you're trying to do some odd modification of Configurations/10-main.conf and the result isn't quite right... could it be that this is where the lonely / appears?