when I use this tool build libuv ,I got this exception .

[chinaestone]

when I use this tool build libuv ,I got this exception as follows::

checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-darwin-strip... no
checking for strip... strip
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking build system type... x86_64-apple-darwin14.0.0
checking host system type... arm-unknown-darwin
checking for arm-darwin-gcc... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
checking whether the C compiler works... no
configure: error: in /Users/username/Desktop/iOSBuild/build/src/libuv-0.11.17': configure: error: C compiler cannot create executables Seeconfig.log' for more details

my system info:
osx 10.10
cpu i7 2.9GHz
xcode 6.1
autoconf 2.69
automake 1.14.1
libtool version is (Apple Inc. version cctools-862)

the most important issue is that i can't find the "config.log" in any directory .
the iOSBuild doesn't generate it .
can you tell how to solve these problem or u can tell where is the "config.log" going?