On 21.03.21 11:41, Jeffrey Walton wrote:
Hi Everyone/Tim, I've been testing iOS cross-compiles. It looks like Wget2 is having trouble with arm64: $ echo $CPPFLAGS -DNDEBUG -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.2.sdk $ echo $CFLAGS -Wall -g2 -O3 -fPIC -arch arm64 -miphoneos-version-min=6 --sysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.2.sdk $ echo $CXXFLAGS -Wall -g2 -O3 -fPIC -arch arm64 -miphoneos-version-min=6 -stdlib=libc++ --sysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.2.sdk $ echo $LDFLAGS $ command -v cpp /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cpp $ cat config.log ... configure:6438: checking how to run the C preprocessor configure:6508: result: cpp configure:6528: cpp -DNDEBUG -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.2.sdk conftest.c clang: error: no input files configure:6528: $? = 1 configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "wget2" | #define PACKAGE_TARNAME "wget2" | #define PACKAGE_VERSION "1.99.2" | #define PACKAGE_STRING "wget2 1.99.2" | #define PACKAGE_BUGREPORT "[email protected]" | #define PACKAGE_URL "https://savannah.gnu.org/projects/wget"; | #define PACKAGE "wget2" | #define VERSION "1.99.2" | /* end confdefs.h. */ | #ifdef __STDC__ | # include <limits.h> | #else | # include <assert.h> | #endif | Syntax error configure:6528: cpp -DNDEBUG -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.2.sdk conftest.c clang: error: no input files configure:6528: $? = 1 configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "wget2" | #define PACKAGE_TARNAME "wget2" | #define PACKAGE_VERSION "1.99.2" | #define PACKAGE_STRING "wget2 1.99.2" | #define PACKAGE_BUGREPORT "[email protected]" | #define PACKAGE_URL "https://savannah.gnu.org/projects/wget"; | #define PACKAGE "wget2" | #define VERSION "1.99.2" | /* end confdefs.h. */ | #ifdef __STDC__ | # include <limits.h> | #else | # include <assert.h> | #endif | Syntax error configure:6558: error: in `/Users/jwalton/wget2-1.99.2': configure:6560: error: C preprocessor "cpp" fails sanity check See `config.log' for more details
Hi Jeff,I don't have these issues on your M1 machine (thank you for the access) when just running ./configure. If you set flags like CPPFLAGS make sure these work with clang 12. The commands like 'gcc' and 'cpp' are
For example % cpp --version Apple clang version 12.0.0 (clang-1200.0.32.29) Target: arm64-apple-darwin20.3.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin I am not a clang expert, but it looks like the -isysroot is the trouble. So, I can build wget2 from tarball after ./configure --without-lzma --disable-manylibsThe first param is due to a general issue in our sloppy detection+use of libraries where we don't check for the header file (lzma.h in this case).
The second one is more complicated...On Linux we use a patched version of libtool - we add '-no-whole-archive' to it so that only needed objects are linked to our libraries. And on M1 there is not libtool in the working directory that we could patch (thus the non-fatal error in the configure run).
And even if we had that, proper linking then only works when using GNU ld.As a work-around we could add @INTL_MACOSX_LIBS@ to the link step... but the libraries blow up in size and we might see 'multiple definition' errors later.
BTW, libtool is looking for a new maintainer ;-)Unsure how to work around this properly on Mac, but --disable-manylibs should just work.
Then when building the tests in tests/, there seems to be a linker error as MHD isn't linked in and thus we have undefined symbol errors.
This is a blocker for running the tests and fixing this has priority for me. Regards, Tim
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