리눅스..APM 설치 강좌중에서 오류나요

이부분인데요

CFLAGS="-O3 -march=i686 -funroll-loops -fomit-frame-pointer"
./configure
--with-apxs2=/usr/local/apache/bin/apxs
--with-zlib --with-gd --with-ttf --with-png
--with-expat-dir=/usr --with-gmp --with-xml
--with-mysql=/usr/local/mysql
--with-language=korean
--with-charset=euc_kr
--disable-debug --disable-posix --disable-rpath
--enable-safe-mode --enable-magic-quotes
--disable-dmalloc --enable-bcmath
--enable-dio --enable-gd-native-ttf
--enable-sysvsem --enable-sysvshm
--enable-wddx --enable-versioning
--enable-pic --enable-inline-optimization
--enable-memory-limit --enable-mbstring
--enable-mbregex --enable-mbstr-enc-trans
--with-config-file-path=/usr/local/lib --enable-ftp --disable-debug --enable-track-vars=yes
 --with-jpeg-dir --with-freetype-dir
--enable-gd-native-ttf --enable-dl
--with-imap=shared --with-imap-ssl=/usr/lib --with-kerberos

이중에서

CFLAGS="-O3 -march=i686 -funroll-loops -fomit-frame-pointer"
요부분을 빼고 컨피그르 하면.. 오류가 안 나면서 컨피그가 되고요

이걸. 넣으면..

영어 메세지인데. 대충 해석하면..

C 컴파일러가 없다고 하는거 같네요

분명히 GCC가 있는데..  왜 그러져??

또. 저 설정부분은 몰 뜻하는건지요~~~~~??