php的安装错误?

随风飘来

我在RedHat8.0下安装php出现如下错误:

checking for unsetenv... yes
checking for usleep... yes
checking for utime... yes
checking for vsnprintf... yes
checking for getaddrinfo... yes
checking for strlcat... no
checking for strlcpy... no
checking for getopt... yes
checking whether utime accepts a null argument... yes
checking for working alloca.h... (cached) yes
checking for alloca... yes
checking whether sprintf is broken... no
checking whether snprintf is broken... no
checking for declared timezone... yes
checking for type of reentrant time-related functions... POSIX
checking for readdir_r... yes
checking for type of readdir_r... POSIX

General settings
checking whether to include debugging symbols... no
checking layout of installed files... PHP
checking path to configuration file... DEFAULT
checking directory to be scanned for configuration files... DEFAULT
checking whether to install PEAR, and where... yes
checking whether to enable safe mode by default... no
checking for safe mode exec dir... /usr/local/php/bin
checking whether to enable PHP's own SIGCHLD handler... no
checking whether to enable magic quotes by default... no
checking whether to enable runpaths... yes
checking whether to explicitly link against libgcc... no
checking whether to enable short tags by default... yes
checking whether to enable dmalloc... no
checking whether to enable IPv6 support... yes
checking for OpenSSL support... no

Configuring extensions
checking for ZLIB support... no
checking if the location of ZLIB install directory is defined... no
checking whether to enable bc style precision math functions... no
checking for BZip2 support... no
checking whether to enable calendar conversion support... no
checking for cpdflib support... no
checking for CRACKlib support... no
checking whether to enable ctype functions... yes
checking for CURL support... no
checking for cyrus imap support... no
checking for xDBM support... no
checking whether to enable DBA... no
checking for GDBM support... no
checking for NDBM support... no
checking for Berkeley DB4 support... no
checking for Berkeley DB3 support... no
checking for Berkeley DB2 support... no
checking for DBM support... no
checking for CDB support... no
checking for INI File support... no
checking for FlatFile support... no
checking whether to enable DBA interface... no
checking whether to enable dbase support... no
checking whether to enable dbx support... no
checking whether to enable direct I/O support... no
checking for DOM support... no
checking for DOM XSLT support... no
checking for DOM EXSLT support... no
checking whether to enable EXIF (metadata from images) support... no
checking for FrontBase SQL92 (fbsql) support... no
checking for FDF support... no
checking whether to enable the bundled filePro support... no
checking for FriBidi support... no
checking whether to enable FTP support... no
checking for GD support... yes
checking for the location of libjpeg... no
checking for the location of libpng... no
checking for the location of libXpm... no
checking for FreeType 1.x support... no
checking for FreeType 2... no
checking for T1lib support... no
checking whether to enable truetype string function in GD... no
checking whether to enable JIS-mapped Japanese font support in GD... no
checking for fabsf... yes
checking for floorf... yes
If configure fails try --with-jpeg-dir=<DIR>
configure: error: libpng.(a|so) not found.
请问高手一下??

黄叶

说一下你的系统环境。

sd44

安装libpng包