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我试图编译FFmpeg的针对iOS（对于iPhone5的，为了做一些RSTP流的东西）以下的tutorial here但我卡住与此错误：无法编译的ffmpeg的iOS
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc is unable to create an executable file.
C compiler test failed.
在我的config.log文件，我有这样的：
BEGIN /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.D3a73otQ.c
1 int main(void){ return 0; }
END /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.D3a73otQ.c
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -arch armv7 -mfpu=neon -miphoneos-version-min=6.0 -mcpu=cortex-a9 -c -o /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.Wv4eZtHX.o /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.D3a73otQ.c
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -miphoneos-version-min=6.0 --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -o /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.y84bbrJt /var/folders/9g/zv_vdz7x16g1hgx9pqj57zz80000gn/T//ffconf.Wv4eZtHX.o
ld: library not found for -lcrt1.3.1.o
collect2: ld returned 1 exit status
C compiler test failed.
我已经在计算器或与谷歌
任何想法，找到了其他脚本其他错误？
好（我在Mac环境还挺新），我设法通过SDK目标固定到最后的SDK我有（6.1）通过配置阶段，除去其它链接器标记，但随后的“使“命令是充满了错误的（无论是用gcc或臂苹果darwin10-GCC-4.2）：
In file included from ./libavutil/internal.h:113,
from ./libavutil/common.h:385,
from ./libavutil/avutil.h:238,
from libavdevice/version.h:28,
from libavdevice/avdevice.h:22,
from libavdevice/alldevices.c:22:
./libavutil/libm.h:53: error: static declaration of ‘cbrt’ follows non-static declaration
./libavutil/libm.h:60: error: static declaration of ‘cbrtf’ follows non-static declaration
./libavutil/libm.h:86: error: expected identifier or ‘(’ before ‘sizeof’
./libavutil/libm.h:96: error: expected identifier or ‘(’ before ‘sizeof’
./libavutil/libm.h:142: error: static declaration of ‘rint’ follows non-static declaration
./libavutil/libm.h:149: error: static declaration of ‘lrint’ follows non-static declaration
./libavutil/libm.h:156: error: static declaration of ‘lrintf’ follows non-static declaration
./libavutil/libm.h:163: error: static declaration of ‘round’ follows non-static declaration
./libavutil/libm.h:170: error: static declaration of ‘roundf’ follows non-static declaration
./libavutil/libm.h:177: error: static declaration of ‘trunc’ follows non-static declaration
./libavutil/libm.h:184: error: static declaration of ‘truncf’ follows non-static declaration
make: *** [libavdevice/alldevices.o] Error 1
我注意到工作项目中没有设置**其他链接器标志**，而我的非工作项目设置了'-arch i386'。我删除了它，它似乎已修复它。如果问题未解决，则在静态库和主项目的项目设置中取消选中** Compile for Thumb **。 – 2013-03-18 11:15:26