linux正确标志通过gcc mcrypt.h位置 [英] linux correct flag to pass gcc mcrypt.h location

问题描述

我已将 libmcrypt 从源码编译为 / home / mybin /...，并确认为所需文件的位置。

  /home/mybin/include/mcrypt.h 
 / home / mybin / include /mutils/mcrypt.h 
 /home/mybin/lib/libmcrypt.so ...> 4.4.8 
 / home / mybin / bin / libmcrypt-config 
  

./configure为php7使用下面的选项，我得到一个错误信息 configure：error：mcrypt.h not found。请重新安装libmcrypt。

我使用不正确的标志告诉gcc查看 ../ include 目录 mcrypt.h

  ./配置\ 
 CC = / home / mybin / bin / gcc \ 
 CPPFLAGS = -  I / home / mybin / include\ 
 LDFLAGS = -  L / home / mybin / lib\ 
 LIBS = -  lmcrypt\ 
 --prefix = / home / _cgi / php7 \ 
 --bindir = / home / mybin / bin \ 
 --libdir = / home / mybin / lib \ 
 --includedir = / home / mybin / include \ 
 --with-mcrypt = / home / mybin / lib 
  
 
 $ <$ p $ <$ p $ <$ p $ > 
 
 
 一些有影响的环境变量：
 CC C编译器命令
 CFLAGS C编译器标志
 LDFLAGS链接器标志，例如-L< lib dir>如果你有一个
非标准目录中的库< lib dir> 
 LIBS库传递给链接器，例如-l< library> 
 CPPFLAGS（Objective）C / C ++预处理器标志，例如。 -I< include dir>如果
在非标准目录中有标题< include dir> 
 CPP C预处理器
 YACC要使用的另一个编译器编译器实现。 
默认为第一个程序：`bison -y'，`byacc'，
`yacc'。 
 YFLAGS将默认传递给$ YACC的参数列表。 
此脚本将默认YFLAGS为空字符串，以避免某些make应用程序给出的
默认值`-d'。 
 CXX C ++编译器命令
 CXXFLAGS C ++编译器标志
 CXXCPP C ++预处理器
 
微调安装目录：
 --bindir = DIR用户可执行文件[ EPREFIX / bin] 
 --sbindir = DIR系统管理可执行文件[EPREFIX / sbin] 
 --libexecdir = DIR程序可执行文件[EPREFIX / libexec] 
 --sysconfdir = DIR只读单 - 机器数据[PREFIX / etc] 
 --sharedstatedir = DIR可修改架构无关数据[PREFIX / com] 
 --localstatedir = DIR可修改的单机数据[PREFIX / var] 
 --libdir = DIR目标代码库[EPREFIX / lib] 
 --includedir = DIR C头文件[PREFIX / include] 
 --oldincludedir = DIR用于非gcc的头文件[/ usr / include] 
 --datarootdir = DIR只读arch.独立数据根[PREFIX / share] 
 --datadir = DIR只读架构无关数据[DATAROOTDIR] 
  - infodir = DIR信息文档[DATAROOTDIR / info] 
 --localedir = DIR语言环境相关数据[DATAROOTDIR / locale] 
 --mandir = DIR man documentation [DATAROOTDIR / man] 
  - docdir = DIR文档根[DATAROOTDIR / doc / PACKAGE] 
 --htmldir = DIR html文档[DOCDIR] 
 --dvidir = DIR dvi文档[DOCDIR] 
 --pdfdir = DIR pdf文档[DOCDIR] 
 --psdir = DIR ps文档[DOCDIR] 
 
 --with-mcrypt = DIR包括mcrypt支持
   
  php-7.0.4 $ grep -r'mcrypt.h找不到。请重新安装libmcrypt'
 ext / mcrypt / config.m4：AC_MSG_ERROR（找不到mcrypt.h，请重新安装libmcrypt。）
 configure：as_fn_error $？ mcrypt.h not found。请重新安装libmcrypt。 $ LINENO5 
  
我们可以忽略 configure 因为它是一个生成的文件，所以它是从 m4  
宏 ext / mcrypt / config.m4  。让我们看一下上下文：
  ... 
 if test$ PHP_MCRYPT！=no;那么
 for i in $ PHP_MCRYPT / usr / local / usr; do 
 test -f $ i / include / mcrypt.h&& MCRYPT_DIR = $ i&&& break 
 done 
 
如果test -z$ MCRYPT_DIR;然后
 AC_MSG_ERROR（找不到mcrypt.h，请重新安装libmcrypt。）
 fi 
 ... 
  
现在都变得清楚了。如果 $ PHP_MCRYPT 不是否，那么它的
值 DIR  $ c>  -  with-mcrypt [= DIR] ，即目录
路径或没有。
 
 
 
  mcrypt.h ：
 
 
 
 
 
  usr / local / include （ libmcrypt 是由默认安装 make install  li> 
 
  / usr / include （ libmcrypt 由distro软件包管理器安装） / li> 
 
 
 
 
如果不是什么，那么 mcrypt.h 在
中查找：
 
 
 
 
 
  $ PHP_MCRYPT / include  c $ c> 安装到非默认 make install 到 $ PHP_MCRYPT  ）
 
 
 
 
 
因此，如果您指定  -  with-mcrypt = DIR   DIR 应为您的安装
前缀  libmcrypt ， not包含  libmcrypt.so 的目录。
 
 
 
 
 
 
   -  with-mcrypt = / home / mybin / lib 
  
到：
   -  with-mcrypt = / home / mybin 
  
 
I have compiled libmcrypt from source to /home/mybin/... with the following  confirmed as the location of the needed files.
/home/mybin/include/mcrypt.h
/home/mybin/include/mutils/mcrypt.h
/home/mybin/lib/libmcrypt.so ...> 4.4.8
/home/mybin/bin/libmcrypt-config
When I try a ./configure for php7 using the below options, I get an error message configure: error: mcrypt.h not found. Please reinstall libmcrypt.

What flags am I using incorrectly to tell gcc to look in the ../include directory for mcrypt.h
./configure \
CC=/home/mybin/bin/gcc \
CPPFLAGS="-I/home/mybin/include" \
LDFLAGS="-L/home/mybin/lib" \
LIBS="-lmcrypt" \
--prefix=/home/_cgi/php7 \
--bindir=/home/mybin/bin \
--libdir=/home/mybin/lib \
--includedir=/home/mybin/include \
--with-mcrypt=/home/mybin/lib
from the configure --help I get 
Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  CPP         C preprocessor
  YACC        The `Yet Another Compiler Compiler' implementation to use.
              Defaults to the first program found out of: `bison -y', `byacc',
              `yacc'.
  YFLAGS      The list of arguments that will be passed by default to $YACC.
              This script will default YFLAGS to the empty string to avoid a
              default value of `-d' given by some make applications.
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CXXCPP      C++ preprocessor

  Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

--with-mcrypt=DIR       Include mcrypt support

解决方案
Let's see where this error comes from in the php7 source tree:
php-7.0.4$ grep -r 'mcrypt.h not found. Please reinstall libmcrypt'
ext/mcrypt/config.m4:    AC_MSG_ERROR(mcrypt.h not found. Please reinstall libmcrypt.)
configure:    as_fn_error $? "mcrypt.h not found. Please reinstall libmcrypt." "$LINENO" 5
We can ignore configure since it's a generated file, so it's from that m4
macro ext/mcrypt/config.m4. Let's look at the context:
...
if test "$PHP_MCRYPT" != "no"; then
  for i in $PHP_MCRYPT /usr/local /usr; do
    test -f $i/include/mcrypt.h && MCRYPT_DIR=$i && break
  done

  if test -z "$MCRYPT_DIR"; then
    AC_MSG_ERROR(mcrypt.h not found. Please reinstall libmcrypt.)
  fi
...
Now all becomes clear. If $PHP_MCRYPT isn't "no" then its the
value of DIR as per --with-mcrypt[=DIR], i.e. a directory
path or nothing.

If it's nothing then mcrypt.h is looked for in:


/usr/local/include (libmcrypt was installed by a default make install)
/usr/include (libmcrypt was installed by the distro package manager)


If it's not nothing then mcrypt.h is additionally (and for preference) looked
for in:


$PHP_MCRYPT/include (libmcrypt was installed by a non-default make install to $PHP_MCRYPT)


So if you specify --with-mcrypt=DIR, then DIR should be your installation
prefix for libmcrypt, not the directory containing libmcrypt.so.

So your solution is, change:
--with-mcrypt=/home/mybin/lib
to:
--with-mcrypt=/home/mybin


                        
这篇关于linux正确标志通过gcc mcrypt.h位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！