运行make命令构建Apache文件时，我们遇到了以下错误。 我们正在AIX 6.1 OS上执行安装。 根据以下链接中给出的步骤，安装完成到配置步骤： http://httpd.apache.org/docs/2.4/install.html
错误是：
util_pcre.c:48:18: error: pcre.h: No such file or directory
util_pcre.c: In function 'ap_regfree':
util_pcre.c:103: error: 'pcre_free' undeclared (first use in this function)
util_pcre.c:103: error: (Each undeclared identifier is reported only once
util_pcre.c:103: error: for each function it appears in.)
util_pcre.c: In function 'ap_regcomp':
util_pcre.c:129: error: 'PCRE_CASELESS' undeclared (first use in this function)
util_pcre.c:131: error: 'PCRE_MULTILINE' undeclared (first use in this function)
util_pcre.c:133: error: 'PCRE_DOTALL' undeclared (first use in this function)
util_pcre.c:136: warning: implicit declaration of function 'pcre_compile'
util_pcre.c:136: warning: assignment makes pointer from integer without a cast
util_pcre.c:142: warning: implicit declaration of function 'pcre_fullinfo'
util_pcre.c:142: error: expected ')' before 'pcre'
util_pcre.c:142: warning: type defaults to 'int' in declaration of 'type name'
util_pcre.c:143: error: 'PCRE_INFO_CAPTURECOUNT' undeclared (first use in this function)
util_pcre.c: In function 'ap_regexec_len':
util_pcre.c:180: error: 'PCRE_NOTBOL' undeclared (first use in this function)
util_pcre.c:182: error: 'PCRE_NOTEOL' undeclared (first use in this function)
util_pcre.c:198: warning: implicit declaration of function 'pcre_exec'
util_pcre.c:198: error: expected ')' before 'pcre'
util_pcre.c:198: warning: type defaults to 'int' in declaration of 'type name'
util_pcre.c:221: error: 'PCRE_ERROR_NOMATCH' undeclared (first use in this function)
util_pcre.c:223: error: 'PCRE_ERROR_NULL' undeclared (first use in this function)
util_pcre.c:225: error: 'PCRE_ERROR_BADOPTION' undeclared (first use in this function)
util_pcre.c:227: error: 'PCRE_ERROR_BADMAGIC' undeclared (first use in this function)
util_pcre.c:229: error: 'PCRE_ERROR_UNKNOWN_NODE' undeclared (first use in this function)
util_pcre.c:231: error: 'PCRE_ERROR_NOMEMORY' undeclared (first use in this function)
make: 1254-004 The error code from the last command is 1.
Stop.
make: 1254-004 The error code from the last command is 1.
我们还为AIX 6.1安装了以下版本的GCC编译器： -
libgcc-4.2.0-3.aix6.1.ppc.rpm
libstdcplusplus-4.2.0-3.aix6.1.ppc.rpm
libstdcplusplus-devel-4.2.0-3.aix6.1.ppc.rpm
gcc-cplusplus-4.2.0-3.aix6.1.ppc.rpm
请建议这里缺少导致错误的内容。