第一次编译安装php的时候很顺利，因为要增加freetype，所以要重新编译，结果死活就是无法通过configure。
centos7信息
uname -a
linux dev 3.10.0-327.el7.x86_64 #1 smp thu nov 19 22:10:57 utc 2015 x86_64 x86_64 x86_64 gnu/linux
运行 ./configure 报错
configure: error: cannot run c compiled programs.
if you meant to cross compile, use `--host'.
运行 grep error config.log
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
configure:4076: error: in `/usr/local/src/php-5.6.19':
configure:4078: error: cannot run c compiled programs.
按照网上说的方法 在configure后面加上了 --host=x86_64 ，报错
configure: error: in `/usr/local/src/php-5.6.19':
configure: error: c preprocessor /lib/cpp fails sanity check
config.log中错误提示，差好几个头文件
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
configure:4076: error: in `/usr/local/src/php-5.6.19':
configure:4078: error: cannot run c compiled programs.
[root@dev php-5.6.19]# grep error config.log
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-qlanglvl=extc89'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-qlanglvl=ansi'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-std'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
:0:1: error: missing '(' after predicate
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
:0:1: error: missing '(' after predicate
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-xc'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:12:0: fatal error: assert.h: no such file or directory
| syntax error
conftest.c:12:0: fatal error: assert.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
configure:4478: error: in `/usr/local/src/php-5.6.19':
configure:4480: error: c preprocessor /lib/cpp fails sanity check
gcc安装信息
[root@dev php-5.6.19]# rpm -qa | grep glibc
compat-glibc-headers-2.12-4.el7.centos.x86_64
glibc-utils-2.17-106.el7_2.4.x86_64
glibc-common-2.17-106.el7_2.4.x86_64
glibc-devel-2.17-106.el7_2.4.x86_64
glibc-static-2.17-106.el7_2.4.x86_64
glibc-2.17-106.el7_2.4.x86_64
glibc-headers-2.17-106.el7_2.4.x86_64
compat-glibc-2.12-4.el7.centos.x86_64
[root@dev php-5.6.19]# gcc -v
using built-in specs.
collect_gcc=gcc
collect_lto_wrapper=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
target: x86_64-redhat-linux
configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/build/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/build/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
thread model: posix
gcc version 4.8.5 20150623 (red hat 4.8.5-4) (gcc)
回复内容： 第一次编译安装php的时候很顺利，因为要增加freetype，所以要重新编译，结果死活就是无法通过configure。
centos7信息
uname -a
linux dev 3.10.0-327.el7.x86_64 #1 smp thu nov 19 22:10:57 utc 2015 x86_64 x86_64 x86_64 gnu/linux
运行 ./configure 报错
configure: error: cannot run c compiled programs.
if you meant to cross compile, use `--host'.
运行 grep error config.log
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
configure:4076: error: in `/usr/local/src/php-5.6.19':
configure:4078: error: cannot run c compiled programs.
按照网上说的方法 在configure后面加上了 --host=x86_64 ，报错
configure: error: in `/usr/local/src/php-5.6.19':
configure: error: c preprocessor /lib/cpp fails sanity check
config.log中错误提示，差好几个头文件
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
configure:4076: error: in `/usr/local/src/php-5.6.19':
configure:4078: error: cannot run c compiled programs.
[root@dev php-5.6.19]# grep error config.log
cc: error: unrecognized command line option '-v'
cc: fatal error: no input files
cc: error: unrecognized command line option '-qversion'
cc: fatal error: no input files
conftest.c:9:19: fatal error: stdio.h: no such file or directory
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-qlanglvl=extc89'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-qlanglvl=ansi'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-std'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
:0:1: error: missing '(' after predicate
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
:0:1: error: missing '(' after predicate
conftest.c:9:20: fatal error: stdarg.h: no such file or directory
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
cc: error: unrecognized command line option '-xc'
| these don't provoke an error unfortunately, instead are silently treated
| as 'x'. the following induces an error, until -std is added to get
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:12:0: fatal error: assert.h: no such file or directory
| syntax error
conftest.c:12:0: fatal error: assert.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
conftest.c:10:21: fatal error: limits.h: no such file or directory
| syntax error
configure:4478: error: in `/usr/local/src/php-5.6.19':
configure:4480: error: c preprocessor /lib/cpp fails sanity check
gcc安装信息
[root@dev php-5.6.19]# rpm -qa | grep glibc
compat-glibc-headers-2.12-4.el7.centos.x86_64
glibc-utils-2.17-106.el7_2.4.x86_64
glibc-common-2.17-106.el7_2.4.x86_64
glibc-devel-2.17-106.el7_2.4.x86_64
glibc-static-2.17-106.el7_2.4.x86_64
glibc-2.17-106.el7_2.4.x86_64
glibc-headers-2.17-106.el7_2.4.x86_64
compat-glibc-2.12-4.el7.centos.x86_64
[root@dev php-5.6.19]# gcc -v
using built-in specs.
collect_gcc=gcc
collect_lto_wrapper=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
target: x86_64-redhat-linux
configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/build/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/build/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
thread model: posix
gcc version 4.8.5 20150623 (red hat 4.8.5-4) (gcc)
看起来像是gcc的问题，建议你先安装并更新一下yum源，然后安装或更新下如下软件
yum updateyum -y install ntp make openssl openssl-devel pcre pcre-devel libpnglibpng-devel libjpeg-6b libjpeg-devel-6b freetype freetype-devel gd gd-devel zlib zlib-develgcc gcc-c++ libxpm libxpm-devel ncurses ncurses-devel libmcrypt libmcrypt-devel libxml2libxml2-devel imake autoconf automake screen sysstat compat-libstdc++-33 curl curl-devel