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conan-io / conan

Conan - The open-source C and C++ package manager
https://conan.io
MIT License
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[feature] Cross compilation on same os / architecture #10923

Open eirikb opened 2 years ago

eirikb commented 2 years ago

As strange as it sounds I'm trying to cross compile from Linux x86_64 to Linux x86_64, using a Yocto SDK Toolchain.
I use two profiles (-pr:b and -pr:h).
A lot of recipes work out-of-the-box, but not all. Currently struggling with libbacktrace (because of boost). It uses autotools.

Here is output of building with two Yocto toolchains, one from x86_64 to armv7hf and one from x86_64 to x86_64: https://github.com/eirikb/proof-of-conan/runs/5742649170?check_suite_focus=true The one failing will say:

configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'.

The --host (and --target) is not passed.

This seems logical enough, and the check in https://github.com/conan-io/conan/blob/develop/conans/client/tools/oss.py#L460 will check if host_os or host_arch is not like build_os or build_arch.

I'm not sure how to solve this, perhaps some additional flag somewhere? Maybe it is already possible? As I understand using two profiles by itself doesn't necessarily mean cross building.

In addition I did some tests, by forcing cross_building in oss.py to always return True.
Then --host and --target would be passed, but automake didn't consider it cross build. I'm not 100% sure why not, could be a similar arch vs arch check? The parameters were _x8664-linux-gnu . If I changed these, to for example _x8664-linux it would cross build, even when they were equal. I did this directly in autotools_environment.py.

memsharded commented 2 years ago

Hi @eirikb

Indeed a non expected case. As Conan has no further information so far, it will use only os-arch to decide. But it is not only a problem of the cross_building method, but it can be bigger. For example, the package_id could be colliding. If all settings and options are exactly the same, the package_id is the same and the binary will be consider the same (and binary compatible) among them. But I think it is not the case, the binary built for Yocto won't run on the host system and viceversa.

I think something else is necessary into the model to dissambiguate between those builds/binaries. What would be the variable thing in the packages? Something in the Yocto built image? Versioning or classifying the Linux distro?

eirikb commented 2 years ago

I'm not very well traversed in the land of Yocto, but the toolchain files at least seem to contain pieces such as;

All of these variables might end up creating different binaries.

I think it is possible to distinguish binaries in cache today by introducing extra parameters in settings.yml.
Since I build using docker with custom profiles this should be straight forward and contained to the specific toolchains.
This won't help with cross compiling though.

Update / Edit

When building with bitbake these parameters will show:

BB_VERSION           = "1.46.0"
BUILD_SYS            = "x86_64-linux"
NATIVELSBSTRING      = "universal"
TARGET_SYS           = "x86_64-poky-linux"
MACHINE              = "qemux86-64"
DISTRO               = "poky"
DISTRO_VERSION       = "3.1.14"
TUNE_FEATURES        = "m64 core2"
TARGET_FPU           = ""

Any combination of these might create a different binary, at least the ones not relevant to build system. This is interesting when it comes to binaries and cache, however for my current issue cross compiling is the problem. Some way to force this in Conan would be great.

eirikb commented 2 years ago

Since I have a docker image for the sole purpose of cross compiling I decided to test out some hacks based on my findings from my initial test.

Note that this is very hacky, only for testing purposes, and it is done in a toolchain-purposed docker image.

# This will force Conan to always consider the build as cross compiling
RUN sed -i '/def cross_build/a \    return True' /usr/local/lib/python3.8/dist-packages/conans/client/tools/oss.py

# This will trick automake configure to consider the build cross compile
RUN sed -i '/self.build,/a \        self.build = "x86_64-linux"' /usr/local/lib/python3.8/dist-packages/conans/client/build/autotools_environment.py

I'm not sure if that last one is a problem with automake or the library, or something else.
Even without Conan, just trying to build the library from github using the toolchain it won't build, with the same errors. I'm not sure how Yocto builds this library as I can't find the recipe.

With the changes above I can successfully run conan install on libbacktrace, and I can run conan create on boost which depends on this libbacktrace.
Running conan create on libbacktrace gave compilation error in test_package. I'm not sure why, I believe this worked in my previous test.

steinerthomas commented 10 months ago

Hi, what's the status? Is there a feature for the autotools build helper (e.g. by forcing the --host argument in the profile/configuration) planned?

I'm also facing an issue when "cross-building" from x86_64 Debian10 (build server, default profile) to x86_64 Debian12 (target) when building the libxml2 library:

$conan create recipes/libxml2/all libxml2/2.11.4@ -u -tf None -pr debian6412 -pr:b default -s:b build_type=RelWithDebInfo -o shared=True -o iconv=False -o zlib:shared=True -s build_type=RelWithDebInfo

ERROR:

configure:4252: ./conftest
./conftest: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by ./conftest)
configure:4256: $? = 1
configure:4263: error: in `/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo':
configure:4265: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details
Full console output ``` Exporting package recipe libxml2/2.11.4 exports: File 'conandata.yml' found. Exporting it... libxml2/2.11.4 exports: Copied 1 '.yml' file: conandata.yml libxml2/2.11.4: The stored package has not changed libxml2/2.11.4: Using the exported files summary hash as the recipe revision: aa29921b43f43d017da9ddcd161b8c35 libxml2/2.11.4: Exported revision: aa29921b43f43d017da9ddcd161b8c35 Configuration (profile_host): [settings] arch=x86_64 build_type=RelWithDebInfo compiler=gcc compiler.cppstd=20 compiler.libcxx=libstdc++11 compiler.version=12 os=Linux [options] iconv=False shared=True zlib:shared=True [build_requires] [env] AR=x86_64-debian6412-linux-gnu-ar AS=x86_64-debian6412-linux-gnu-as CC=x86_64-debian6412-linux-gnu-gcc CHOST=x86_64-debian6412-linux-gnu CONAN_CMAKE_FIND_ROOT_PATH=/opt/x-tools/x86_64-debian6412-linux-gnu/x86_64-debian6412-linux-gnu/sysroot CONAN_CMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY CONAN_CMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY CONAN_CMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER CONAN_CMAKE_TOOLCHAIN_FILE=/opt/x-tools/x86_64-debian6412-linux-gnu/toolchain.cmake CXX=x86_64-debian6412-linux-gnu-g++ LD=x86_64-debian6412-linux-gnu-ld PATH=[/opt/x-tools/x86_64-debian6412-linux-gnu/bin] RANLIB=x86_64-debian6412-linux-gnu-ranlib STRIP=x86_64-debian6412-linux-gnu-strip Configuration (profile_build): [settings] arch=x86_64 arch_build=x86_64 build_type=RelWithDebInfo compiler=gcc compiler.cppstd=17 compiler.libcxx=libstdc++11 compiler.version=8 os=Linux os_build=Linux [options] [build_requires] [env] zlib/1.2.13: WARN: Can't update, no package in remote libxml2/2.11.4: Forced build from source Installing package: libxml2/2.11.4 Requirements libxml2/2.11.4 from 'cc-conan-local' - Cache zlib/1.2.13 from 'cc-conan-local' - Cache Packages libxml2/2.11.4:f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47 - Build zlib/1.2.13:1ca3480341e9d85429a069954d57f5d671521233 - Cache Build requirements pkgconf/1.9.3 from 'cc-conan-local' - Cache Build requirements packages pkgconf/1.9.3:252f7e09f641bef29a75fc98d05ac217b842cde4 - Cache Installing (downloading, building) binaries... pkgconf/1.9.3: Already installed! pkgconf/1.9.3: Appending PATH env var: /home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin pkgconf/1.9.3: Setting PKG_CONFIG env var: /home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/pkgconf pkgconf/1.9.3: Appending AUTOMAKE_CONAN_INCLUDES env var: /home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/aclocal zlib/1.2.13: Already installed! libxml2/2.11.4: Applying build-requirement: pkgconf/1.9.3 libxml2/2.11.4: WARN: Build folder is dirty, removing it: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47 libxml2/2.11.4: Copying sources to build folder libxml2/2.11.4: Building your package in /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47 libxml2/2.11.4: Generator txt created conanbuildinfo.txt libxml2/2.11.4: Calling generate() libxml2/2.11.4: Aggregating env generators libxml2/2.11.4: Calling build() libxml2/2.11.4: Calling: > "/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/configure" '--enable-shared' '--disable-static' '--prefix=/' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--enable-shared=yes' '--enable-static=no' '--with-c14n=yes' '--with-catalog=yes' '--with-ftp=yes' '--with-http=yes' '--with-html=yes' '--with-iconv=no' '--with-icu=no' '--with-iso8859x=yes' '--with-legacy=yes' '--with-mem-debug=no' '--with-output=yes' '--with-pattern=yes' '--with-push=yes' '--with-python=no' '--with-reader=yes' '--with-regexps=yes' '--with-sax1=yes' '--with-schemas=yes' '--with-schematron=yes' '--with-threads=yes' '--with-tree=yes' '--with-valid=yes' '--with-writer=yes' '--with-xinclude=yes' '--with-xpath=yes' '--with-xptr=yes' '--with-zlib=yes' '--with-lzma=no' checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a race-free mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking whether to enable maintainer-specific portions of Makefiles... yes checking whether make supports nested variables... (cached) yes checking for gcc... x86_64-debian6412-linux-gnu-gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... configure: error: in `/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo': configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details libxml2/2.11.4: libxml2/2.11.4: ERROR: Package 'f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47' build failed libxml2/2.11.4: WARN: Build folder /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo ERROR: libxml2/2.11.4: Error in build() method, line 287 autotools.configure() ConanException: Error 77 while executing "/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/configure" '--enable-shared' '--disable-static' '--prefix=/' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--enable-shared=yes' '--enable-static=no' '--with-c14n=yes' '--with-catalog=yes' '--with-ftp=yes' '--with-http=yes' '--with-html=yes' '--with-iconv=no' '--with-icu=no' '--with-iso8859x=yes' '--with-legacy=yes' '--with-mem-debug=no' '--with-output=yes' '--with-pattern=yes' '--with-push=yes' '--with-python=no' '--with-reader=yes' '--with-regexps=yes' '--with-sax1=yes' '--with-schemas=yes' '--with-schematron=yes' '--with-threads=yes' '--with-tree=yes' '--with-valid=yes' '--with-writer=yes' '--with-xinclude=yes' '--with-xpath=yes' '--with-xptr=yes' '--with-zlib=yes' '--with-lzma=no' ```
Full autoconf log (config.log) ``` This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by libxml2 configure 2.11.4, which was generated by GNU Autoconf 2.71. Invocation command line was $ /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/configure --enable-shared --disable-static --prefix=/ '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' --enable-shared=yes --enable-static=no --with-c14n=yes --with-catalog=yes --with-ftp=yes --with-http=yes --with-html=yes --with-iconv=no --with-icu=no --with-iso8859x=yes --with-legacy=yes --with-mem-debug=no --with-output=yes --with-pattern=yes --with-push=yes --with-python=no --with-reader=yes --with-regexps=yes --with-sax1=yes --with-schemas=yes --with-schematron=yes --with-threads=yes --with-tree=yes --with-valid=yes --with-writer=yes --with-xinclude=yes --with-xpath=yes --with-xptr=yes --with-zlib=yes --with-lzma=no ## --------- ## ## Platform. ## ## --------- ## hostname = EA0017300639 uname -m = x86_64 uname -r = 4.4.0-19041-Microsoft uname -s = Linux uname -v = #2311-Microsoft Tue Nov 08 17:09:00 PST 2022 /usr/bin/uname -p = unknown /bin/uname -X = unknown /bin/arch = unknown /usr/bin/arch -k = unknown /usr/convex/getsysinfo = unknown /usr/bin/hostinfo = unknown /bin/machine = unknown /usr/bin/oslevel = unknown /bin/universe = unknown PATH: /home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/ PATH: /opt/x-tools/x86_64-debian6412-linux-gnu/bin/ PATH: /home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/ PATH: /usr/local/sbin/ PATH: /usr/local/bin/ PATH: /usr/sbin/ PATH: /usr/bin/ PATH: /sbin/ PATH: /bin/ PATH: /usr/games/ PATH: /usr/local/games/ PATH: /mnt/c/Program Files/TDO/bin/ PATH: /mnt/c/oracle/ora11x64/bin/ PATH: /mnt/c/Program Files/OpenJDK/jdk-17.0.1+12/bin/ PATH: /mnt/c/Program Files (x86)/Common Files/Oracle/Java/javapath/ PATH: /mnt/c/ProgramData/Oracle/Java/javapath/ PATH: /mnt/c/c2ktools/bat/ PATH: /mnt/c/c2ktools/util/ PATH: /mnt/c/oracle/ora11x86/bin/ PATH: /mnt/c/Program Files (x86)/JpSoft/TCMD32/ PATH: /mnt/c/WINDOWS/system32/ PATH: /mnt/c/WINDOWS/ PATH: /mnt/c/WINDOWS/System32/Wbem/ PATH: /mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0/ PATH: /mnt/c/Program Files (x86)/OpenText/Viewer/bin/ PATH: /mnt/c/Program Files (x86)/Araxis/Araxis Merge v6.5/ PATH: /mnt/c/OpenVPN/bin/ PATH: /mnt/c/c2ktools/apache-maven-3.8.6/bin/ PATH: /mnt/c/Program Files/Git/cmd/ PATH: /mnt/c/packer/packer_1.2.3/ PATH: /mnt/c/Program Files/doxygen/bin/ PATH: /mnt/c/Program Files/SlikSvn/bin/ PATH: /mnt/c/WINDOWS/System32/OpenSSH/ PATH: /mnt/c/WINDOWS/system32/config/systemprofile/.dnx/bin/ PATH: /mnt/c/Program Files/Microsoft DNX/Dnvm/ PATH: /mnt/c/Program Files/CMake/bin/ PATH: /mnt/c/Program Files/TortoiseSVN/bin/ PATH: /mnt/c/HashiCorp/Vagrant/bin/ PATH: /mnt/c/Program Files/MATLAB/MATLAB Runtime/v93/runtime/win64/ PATH: /mnt/c/Program Files/Intel/WiFi/bin/ PATH: /mnt/c/Program Files/Common Files/Intel/WirelessCommon/ PATH: /mnt/c/Program Files/dotnet/ PATH: /mnt/c/Program Files (x86)/Intel/Intel(R) Management Engine Components/DAL/ PATH: /mnt/c/Program Files/Intel/Intel(R) Management Engine Components/DAL/ PATH: /mnt/c/Users/001122563/AppData/Local/Microsoft/WindowsApps/ PATH: /mnt/c/Users/001122563/AppData/Local/Programs/Microsoft VS Code/bin/ PATH: /mnt/c/Users/001122563/.dotnet/tools/ PATH: /home/thomas/.local/bin/ ## ----------- ## ## Core tests. ## ## ----------- ## configure:2661: looking for aux files: ltmain.sh compile missing install-sh config.guess config.sub configure:2674: trying /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/ configure:2703: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/ltmain.sh found configure:2703: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/compile found configure:2703: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing found configure:2685: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/install-sh found configure:2703: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/config.guess found configure:2703: /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/config.sub found configure:2825: checking build system type configure:2840: result: x86_64-pc-linux-gnu configure:2860: checking host system type configure:2874: result: x86_64-pc-linux-gnu configure:2940: checking for a BSD-compatible install configure:3013: result: /usr/bin/install -c configure:3024: checking whether build environment is sane configure:3079: result: yes configure:3236: checking for a race-free mkdir -p configure:3280: result: /bin/mkdir -p configure:3287: checking for gawk configure:3322: result: no configure:3287: checking for mawk configure:3308: found /usr/bin/mawk configure:3319: result: mawk configure:3330: checking whether make sets $(MAKE) configure:3353: result: yes configure:3383: checking whether make supports nested variables configure:3401: result: yes configure:3538: checking whether to enable maintainer-specific portions of Makefiles configure:3548: result: yes configure:3573: checking whether make supports nested variables configure:3591: result: yes configure:3665: checking for gcc configure:3697: result: x86_64-debian6412-linux-gnu-gcc configure:4050: checking for C compiler version configure:4059: x86_64-debian6412-linux-gnu-gcc --version >&5 x86_64-debian6412-linux-gnu-gcc (crosstool-NG 1.25.0.220_981043d) 12.3.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. configure:4070: $? = 0 configure:4059: x86_64-debian6412-linux-gnu-gcc -v >&5 Using built-in specs. COLLECT_GCC=x86_64-debian6412-linux-gnu-gcc COLLECT_LTO_WRAPPER=/opt/x-tools/x86_64-debian6412-linux-gnu/bin/../libexec/gcc/x86_64-debian6412-linux-gnu/12.3.0/lto-wrapper Target: x86_64-debian6412-linux-gnu Configured with: /tmp/build-debian6412/.build/x86_64-debian6412-linux-gnu/src/gcc/configure --build=x86_64-build_pc-linux-gnu --host=x86_64-build_pc-linux-gnu --target=x86_64-debian6412-linux-gnu --prefix=/home/jenkins/x-tools/x86_64-debian6412-linux-gnu --exec_prefix=/home/jenkins/x-tools/x86_64-debian6412-linux-gnu --with-sysroot=/home/jenkins/x-tools/x86_64-debian6412-linux-gnu/x86_64-debian6412-linux-gnu/sysroot --enable-languages=c,c++ --with-arch=x86-64 --with-tune=generic --with-pkgversion='crosstool-NG 1.25.0.220_981043d' --enable-__cxa_atexit --disable-libmudflap --disable-libgomp --disable-libssp --disable-libquadmath --disable-libquadmath-support --enable-libsanitizer --enable-libmpx --with-gmp=/tmp/build-debian6412/.build/x86_64-debian6412-linux-gnu/buildtools --with-mpfr=/tmp/build-debian6412/.build/x86_64-debian6412-linux-gnu/buildtools --with-mpc=/tmp/build-debian6412/.build/x86_64-debian6412-linux-gnu/buildtools --with-isl=/tmp/build-debian6412/.build/x86_64-debian6412-linux-gnu/buildtools --enable-lto --enable-threads=posix --enable-target-optspace --disable-plugin --disable-nls --disable-multilib --with-local-prefix=/home/jenkins/x-tools/x86_64-debian6412-linux-gnu/x86_64-debian6412-linux-gnu/sysroot --enable-long-long Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.3.0 (crosstool-NG 1.25.0.220_981043d) configure:4070: $? = 0 configure:4059: x86_64-debian6412-linux-gnu-gcc -V >&5 x86_64-debian6412-linux-gnu-gcc: error: unrecognized command-line option '-V' x86_64-debian6412-linux-gnu-gcc: fatal error: no input files compilation terminated. configure:4070: $? = 1 configure:4059: x86_64-debian6412-linux-gnu-gcc -qversion >&5 x86_64-debian6412-linux-gnu-gcc: error: unrecognized command-line option '-qversion'; did you mean '--version'? x86_64-debian6412-linux-gnu-gcc: fatal error: no input files compilation terminated. configure:4070: $? = 1 configure:4059: x86_64-debian6412-linux-gnu-gcc -version >&5 x86_64-debian6412-linux-gnu-gcc: error: unrecognized command-line option '-version' x86_64-debian6412-linux-gnu-gcc: fatal error: no input files compilation terminated. configure:4070: $? = 1 configure:4090: checking whether the C compiler works configure:4112: x86_64-debian6412-linux-gnu-gcc -m64 -O2 -g -DNDEBUG -I/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/include -m64 -L/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/lib conftest.c -lz >&5 configure:4116: $? = 0 configure:4166: result: yes configure:4169: checking for C compiler default output file name configure:4171: result: a.out configure:4177: checking for suffix of executables configure:4184: x86_64-debian6412-linux-gnu-gcc -o conftest -m64 -O2 -g -DNDEBUG -I/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/include -m64 -L/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/lib conftest.c -lz >&5 configure:4188: $? = 0 configure:4211: result: configure:4233: checking whether we are cross compiling configure:4241: x86_64-debian6412-linux-gnu-gcc -o conftest -m64 -O2 -g -DNDEBUG -I/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/include -m64 -L/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/lib conftest.c -lz >&5 configure:4245: $? = 0 configure:4252: ./conftest ./conftest: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by ./conftest) configure:4256: $? = 1 configure:4263: error: in `/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo': configure:4265: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details ## ---------------- ## ## Cache variables. ## ## ---------------- ## ac_cv_build=x86_64-pc-linux-gnu ac_cv_env_CC_set=set ac_cv_env_CC_value=x86_64-debian6412-linux-gnu-gcc ac_cv_env_CFLAGS_set=set ac_cv_env_CFLAGS_value=' -m64 -O2 -g' ac_cv_env_CPPFLAGS_set=set ac_cv_env_CPPFLAGS_value=' -DNDEBUG -I/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/include' ac_cv_env_ICU_CFLAGS_set= ac_cv_env_ICU_CFLAGS_value= ac_cv_env_ICU_DEFS_set= ac_cv_env_ICU_DEFS_value= ac_cv_env_ICU_LIBS_set= ac_cv_env_ICU_LIBS_value= ac_cv_env_LDFLAGS_set=set ac_cv_env_LDFLAGS_value=' -m64 -L/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/lib' ac_cv_env_LIBS_set=set ac_cv_env_LIBS_value=' -lz' ac_cv_env_LT_SYS_LIBRARY_PATH_set= ac_cv_env_LT_SYS_LIBRARY_PATH_value= ac_cv_env_LZMA_CFLAGS_set= ac_cv_env_LZMA_CFLAGS_value= ac_cv_env_LZMA_LIBS_set= ac_cv_env_LZMA_LIBS_value= ac_cv_env_PKG_CONFIG_LIBDIR_set= ac_cv_env_PKG_CONFIG_LIBDIR_value= ac_cv_env_PKG_CONFIG_PATH_set=set ac_cv_env_PKG_CONFIG_PATH_value=/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo/conan: ac_cv_env_PKG_CONFIG_set=set ac_cv_env_PKG_CONFIG_value=/home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/pkgconf ac_cv_env_PYTHON_CFLAGS_set= ac_cv_env_PYTHON_CFLAGS_value= ac_cv_env_PYTHON_LIBS_set= ac_cv_env_PYTHON_LIBS_value= ac_cv_env_PYTHON_set= ac_cv_env_PYTHON_value= ac_cv_env_Z_CFLAGS_set= ac_cv_env_Z_CFLAGS_value= ac_cv_env_Z_LIBS_set= ac_cv_env_Z_LIBS_value= ac_cv_env_build_alias_set= ac_cv_env_build_alias_value= ac_cv_env_host_alias_set= ac_cv_env_host_alias_value= ac_cv_env_target_alias_set= ac_cv_env_target_alias_value= ac_cv_host=x86_64-pc-linux-gnu ac_cv_path_install='/usr/bin/install -c' ac_cv_path_mkdir=/bin/mkdir ac_cv_prog_AWK=mawk ac_cv_prog_ac_ct_CC=x86_64-debian6412-linux-gnu-gcc ac_cv_prog_make_make_set=yes am_cv_make_support_nested_variables=yes ## ----------------- ## ## Output variables. ## ## ----------------- ## ACLOCAL='${SHELL} '\''/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing'\'' aclocal-1.16' AMDEPBACKSLASH='' AMDEP_FALSE='' AMDEP_TRUE='' AMTAR='$${TAR-tar}' AM_BACKSLASH='\' AM_CFLAGS='' AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' AM_DEFAULT_VERBOSITY='0' AM_LDFLAGS='' AM_V='$(V)' AR='x86_64-debian6412-linux-gnu-ar' AUTOCONF='${SHELL} '\''/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing'\'' autoconf' AUTOHEADER='${SHELL} '\''/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing'\'' autoheader' AUTOMAKE='${SHELL} '\''/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing'\'' automake-1.16' AWK='mawk' BASE_THREAD_LIBS='' CC='x86_64-debian6412-linux-gnu-gcc' CCDEPMODE='' CFLAGS=' -m64 -O2 -g' CPPFLAGS=' -DNDEBUG -I/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/include' CSCOPE='cscope' CTAGS='ctags' CYGPATH_W='echo' DEFS='' DEPDIR='' DLLTOOL='' DSYMUTIL='' DUMPBIN='' ECHO_C='' ECHO_N='-n' ECHO_T='' EGREP='' ETAGS='etags' EXEEXT='' FGREP='' GREP='' ICONV_CFLAGS='' ICU_CFLAGS='' ICU_DEFS='' ICU_LIBS='' INSTALL_DATA='${INSTALL} -m 644' INSTALL_PROGRAM='${INSTALL}' INSTALL_SCRIPT='${INSTALL}' INSTALL_STRIP_PROGRAM='$(install_sh) -c -s' LD='x86_64-debian6412-linux-gnu-ld' LDFLAGS=' -m64 -L/home/thomas/.conan/data/zlib/1.2.13/_/_/package/1ca3480341e9d85429a069954d57f5d671521233/lib' LIBM='' LIBOBJS='' LIBS=' -lz' LIBTOOL='' LIBXML_MAJOR_VERSION='2' LIBXML_MICRO_VERSION='4' LIBXML_MINOR_VERSION='11' LIBXML_VERSION='2.11.4' LIBXML_VERSION_EXTRA='' LIBXML_VERSION_INFO='13:4:11' LIBXML_VERSION_NUMBER='21104' LIPO='' LN_S='' LTLIBOBJS='' LT_SYS_LIBRARY_PATH='' LZMA_CFLAGS='' LZMA_LIBS='' MAINT='' MAINTAINER_MODE_FALSE='#' MAINTAINER_MODE_TRUE='' MAKEINFO='${SHELL} '\''/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/missing'\'' makeinfo' MANIFEST_TOOL='' MKDIR_P='/bin/mkdir -p' MODULE_EXTENSION='' MODULE_PLATFORM_LIBS='' NM='' NMEDIT='' OBJDUMP='' OBJEXT='' OTOOL64='' OTOOL='' PACKAGE='libxml2' PACKAGE_BUGREPORT='' PACKAGE_NAME='libxml2' PACKAGE_STRING='libxml2 2.11.4' PACKAGE_TARNAME='libxml2' PACKAGE_URL='' PACKAGE_VERSION='2.11.4' PATH_SEPARATOR=':' PERL='' PKG_CONFIG='/home/thomas/.conan/data/pkgconf/1.9.3/_/_/package/252f7e09f641bef29a75fc98d05ac217b842cde4/bin/pkgconf' PKG_CONFIG_LIBDIR='' PKG_CONFIG_PATH='/home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/build-relwithdebinfo/conan:' PYTHON='' PYTHON_CFLAGS='' PYTHON_EXEC_PREFIX='' PYTHON_LDFLAGS='' PYTHON_LIBS='' PYTHON_PLATFORM='' PYTHON_PREFIX='' PYTHON_VERSION='' RANLIB='x86_64-debian6412-linux-gnu-ranlib' RDL_CFLAGS='' RDL_LIBS='' RELDATE='' SED='' SET_MAKE='' SHELL='/bin/bash' STRIP='x86_64-debian6412-linux-gnu-strip' TAR='' THREAD_CFLAGS='' THREAD_LIBS='' USE_VERSION_SCRIPT_FALSE='' USE_VERSION_SCRIPT_TRUE='' VERSION='2.11.4' VERSION_SCRIPT_FLAGS='' WGET='' WITH_C14N='' WITH_C14N_SOURCES_FALSE='' WITH_C14N_SOURCES_TRUE='' WITH_CATALOG='' WITH_CATALOG_SOURCES_FALSE='' WITH_CATALOG_SOURCES_TRUE='' WITH_DEBUG='' WITH_DEBUG_SOURCES_FALSE='' WITH_DEBUG_SOURCES_TRUE='' WITH_FTP='' WITH_FTP_SOURCES_FALSE='' WITH_FTP_SOURCES_TRUE='' WITH_GLOB_FALSE='' WITH_GLOB_TRUE='' WITH_HTML='' WITH_HTML_SOURCES_FALSE='' WITH_HTML_SOURCES_TRUE='' WITH_HTTP='' WITH_HTTP_SOURCES_FALSE='' WITH_HTTP_SOURCES_TRUE='' WITH_ICONV='' WITH_ICU='' WITH_ISO8859X='' WITH_LEGACY='' WITH_LEGACY_SOURCES_FALSE='' WITH_LEGACY_SOURCES_TRUE='' WITH_LZMA='' WITH_LZMA_SOURCES_FALSE='' WITH_LZMA_SOURCES_TRUE='' WITH_MEM_DEBUG='' WITH_MODULES='' WITH_MODULES_SOURCES_FALSE='' WITH_MODULES_SOURCES_TRUE='' WITH_OUTPUT='' WITH_OUTPUT_SOURCES_FALSE='' WITH_OUTPUT_SOURCES_TRUE='' WITH_PATTERN='' WITH_PATTERN_SOURCES_FALSE='' WITH_PATTERN_SOURCES_TRUE='' WITH_PUSH='' WITH_PYTHON_FALSE='' WITH_PYTHON_TRUE='' WITH_READER='' WITH_READER_SOURCES_FALSE='' WITH_READER_SOURCES_TRUE='' WITH_REGEXPS='' WITH_REGEXPS_SOURCES_FALSE='' WITH_REGEXPS_SOURCES_TRUE='' WITH_SAX1='' WITH_SAX1_SOURCES_FALSE='' WITH_SAX1_SOURCES_TRUE='' WITH_SCHEMAS='' WITH_SCHEMAS_SOURCES_FALSE='' WITH_SCHEMAS_SOURCES_TRUE='' WITH_SCHEMATRON='' WITH_SCHEMATRON_SOURCES_FALSE='' WITH_SCHEMATRON_SOURCES_TRUE='' WITH_THREADS='' WITH_THREAD_ALLOC='' WITH_TREE='' WITH_TRIO='' WITH_TRIO_SOURCES_FALSE='' WITH_TRIO_SOURCES_TRUE='' WITH_VALID='' WITH_VALID_SOURCES_FALSE='' WITH_VALID_SOURCES_TRUE='' WITH_WRITER='' WITH_WRITER_SOURCES_FALSE='' WITH_WRITER_SOURCES_TRUE='' WITH_XINCLUDE='' WITH_XINCLUDE_SOURCES_FALSE='' WITH_XINCLUDE_SOURCES_TRUE='' WITH_XPATH='' WITH_XPATH_SOURCES_FALSE='' WITH_XPATH_SOURCES_TRUE='' WITH_XPTR='' WITH_XPTR_LOCS='' WITH_XPTR_SOURCES_FALSE='' WITH_XPTR_SOURCES_TRUE='' WITH_ZLIB='' XML_CFLAGS='' XML_INCLUDEDIR='' XML_LIBDIR='' XML_LIBS='' XML_LIBTOOLLIBS='' XML_PRIVATE_CFLAGS='' XML_PRIVATE_LIBS='' XSLTPROC='' Z_CFLAGS='' Z_LIBS='' ac_ct_AR='' ac_ct_CC='x86_64-debian6412-linux-gnu-gcc' ac_ct_DUMPBIN='' am__EXEEXT_FALSE='' am__EXEEXT_TRUE='' am__fastdepCC_FALSE='' am__fastdepCC_TRUE='' am__include='' am__isrc=' -I$(srcdir)' am__leading_dot='.' am__nodep='' am__quote='' am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -' bindir='${prefix}/bin' build='x86_64-pc-linux-gnu' build_alias='' build_cpu='x86_64' build_os='linux-gnu' build_vendor='pc' datadir='${datarootdir}' datarootdir='${prefix}/share' docdir='${datarootdir}/doc/${PACKAGE_TARNAME}' dvidir='${docdir}' exec_prefix='NONE' host='x86_64-pc-linux-gnu' host_alias='' host_cpu='x86_64' host_os='linux-gnu' host_vendor='pc' htmldir='${docdir}' includedir='${prefix}/include' infodir='${datarootdir}/info' install_sh='${SHELL} /home/thomas/.conan/data/libxml2/2.11.4/_/_/build/f0cb5ad7a4a12e1d84218fb638deb2fa5fe11a47/src/install-sh' libdir='${prefix}/lib' libexecdir='${exec_prefix}/libexec' localedir='${datarootdir}/locale' localstatedir='${prefix}/var' mandir='${datarootdir}/man' mkdir_p='$(MKDIR_P)' oldincludedir='${prefix}/include' pdfdir='${docdir}' pkgpyexecdir='' pkgpythondir='' prefix='/' program_transform_name='s,x,x,' psdir='${docdir}' pyexecdir='' pythondir='' runstatedir='${localstatedir}/run' sbindir='${prefix}/bin' sharedstatedir='${prefix}/com' sysconfdir='${prefix}/etc' target_alias='' ## ----------- ## ## confdefs.h. ## ## ----------- ## /* confdefs.h */ #define PACKAGE_NAME "libxml2" #define PACKAGE_TARNAME "libxml2" #define PACKAGE_VERSION "2.11.4" #define PACKAGE_STRING "libxml2 2.11.4" #define PACKAGE_BUGREPORT "" #define PACKAGE_URL "" #define PACKAGE "libxml2" #define VERSION "2.11.4" configure: exit 77 ```

see also https://github.com/conan-io/conan/issues/11437

Here is my current workaround: https://github.com/conan-io/conan-center-index/commit/e207c0b94c868ff19cdaedb334dbbb70253e159f Is there a better way? I think it would also work to update my build server to Debian12. UPDATE: I now use a Debian12 build-container, it compiles as expected.

yzsolt commented 7 months ago

Bumping because I ran into the exact same issue when building for Yocto x64 on an Ubuntu x64 host. Interestingly everything worked and I didn't notice that Conan thought it's not cross-compiling, until I added gRPC as a dependency.

gRPC needs a runnable grpc_cpp_plugin binary on the build machine, and the gRPC recipe would indeed install "itself" for the build environment if cross_building() would return True. I also tried the hack mentioned above, patching Conan to always return True for cross_building() but then I ran into a "loop/cycle detected error" and gave up.

So I guess there are two issues here:

With the emerge of ARM laptops this can become a more common issue, e.g. when building from an ARM Linux laptop to Raspberry.

Also note that there is a possible duplicate issue: https://github.com/conan-io/conan/issues/9808

jasal82 commented 2 weeks ago

Bump. Ran into an issue with the benchmark library on a Yocto x86_64 toolchain where the generated executables cannot be run on the build system (different ld loader naming convention). What about a conf that forces cross_building() to true? We could set that in the respective profile.

CMelanie commented 2 days ago

I ran into a similar issue here, maybe the suggested workaround also works for you?