configure in php 5.4.12 seems to have some difficulty with libcurl 7.29.0 :
$ ./configure --with-apxs2=/usr/local/bin/apxs --with-mysql=/opt/mysql/mysql \
> --with-libxml-dir=/usr/local --sysconfdir=/usr/local/etc \
> --includedir=/usr/local/include --libdir=/usr/local/lib \
> --libexecdir=/usr/
configure in php 5.4.12 seems to have some difficulty with libcurl 7.29.0 :
$ ./configure --with-apxs2=/usr/local/bin/apxs --with-mysql=/opt/mysql/mysql \
> --with-libxml-dir=/usr/local --sysconfdir=/usr/local/etc \
> --includedir=/usr/local/include --libdir=/usr/local/lib \
> --libexecdir=/usr/