我曾尝试为 iphone OS 4 创建库，但出现错误。
这是我参考 Berkeley DB 安装指南的构建脚本。
export DEV_iOS=/Developer/Platforms/iPhoneOS.platform/Developer
export SDK_iOS=${DEV_iOS}/SDKs/iPhoneOS4.2.sdk
export COMPILER_iOS=${DEV_iOS}/usr/bin
export CC=${COMPILER_iOS}/gcc
export CXX=${COMPILER_iOS}/g++
export LDFLAGS="-arch armv6 -pipe -Os -gdwarf-2 -no-cpp-precomp -mthumb -isysroot ${SDK_iOS}"
export CFFLAGS=${LDFLAGS}
export CXXFLAGS=${LDFLAGS}
../dist/configure --host=arm-apple-darwin10 --with-cryptography=no --enable-shared=no
make
在这里，我收到一条带有 3 个警告的错误消息：
libtool: link: /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -O3 -o db_archive -arch armv6 -pipe -Os -gdwarf-2 -no-cpp-precomp -mthumb -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk db_archive.o util_sig.o libdb-5.1.a -lpthread
ld: warning: in db_archive.o, file was built for i386 which is not the architecture being linked (armv6)
ld: warning: in util_sig.o, file was built for i386 which is not the architecture being linked (armv6)
ld: warning: in libdb-5.1.a, file was built for unsupported file format which is not the architecture being linked (armv6)
Undefined symbols:
"_main", referenced from:
_main$non_lazy_ptr in crt1.o
(maybe you meant: _main$non_lazy_ptr)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [db_archive] Error 1
请指导我，我在脚本中做错了什么。
提前致谢。