Hope this rings some bells and that I am making an obvious mistake... I was successfully building and running apps in iOS. I was doing standalone builds of the pjsip libraries, then linking them into an application built inside of Xcode, and all was well. I upgraded to iOS7 and Xcode 5 and have hit a wall at the start. When I try to do my standalone build, and run configure-iphone, I get a message that the C compiler cannot generate executables. Before I run configure-iphone, I set CC=/usr/bin/clang, since the compiler's no longer inside the Xcode distro. I've included the pertinent errors below. When I google the phrase "missing required architecture x86_64 in file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/crt1.o", I get a single hit that claims, and I quote, "iOS build is not yet Xcode 5 compatible"... which just can't be right... Any help would be appreciated! thanks Jerry ---------------------------------------------------------------------------- aconfigure:3003: checking whether the C compiler works aconfigure:3025: /usr/bin/clang -O2 -Wno-unused-label -DPJ_SDK_NAME="\"iPhoneOS7.0.sdk\"" -isysroot /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -O2 -isysroot /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -framework AudioToolbox -framework Foundation conftest.c >&5 ld: warning: ld: warning: ignoring file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/crt1.o, missing required architecture x86_64 in file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/crt1.o (5 slices)ignoring file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/System/Library/Frameworks//AudioToolbox.framework/AudioToolbox, missing required architecture x86_64 in file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/System/Library/Frameworks//AudioToolbox.framework/AudioToolbox (3 slices) ld: warning: ignoring file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/System/Library/Frameworks//Foundation.framework/Foundation, missing required architecture x86_64 in file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/System/Library/Frameworks//Foundation.framework/Foundation (3 slices) ld: warning: ignoring file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libSystem.dylib, missing required architecture x86_64 in file /Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib/libSystem.dylib (3 slices) ld: dynamic main executables must link with libSystem.dylib for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) aconfigure:3029: $? = 1 aconfigure:3067: result: no aconfigure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "pjproject" | #define PACKAGE_TARNAME "pjproject" | #define PACKAGE_VERSION "2.x" | #define PACKAGE_STRING "pjproject 2.x" | #define PACKAGE_BUGREPORT "" | #define PACKAGE_URL "" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } aconfigure:3072: error: in `XXXXX': aconfigure:3074: error: C compiler cannot create executables See `config.log' for more details -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20131010/5c33ac43/attachment-0001.html>