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
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
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
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
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
<code>yum update yum -y install ntp make openssl openssl-devel pcre pcre-devel libpng libpng-devel libjpeg-6b libjpeg-devel-6b freetype freetype-devel gd gd-devel zlib zlib-devel gcc gcc-c++ libXpm libXpm-devel ncurses ncurses-devel libmcrypt libmcrypt-devel libxml2 libxml2-devel imake autoconf automake screen sysstat compat-libstdc++-33 curl curl-devel </code>

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。


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