libtool: line 990: g++: command not found -------------第0次make错误
因 为要部署几套nginx做负载，在make pcre的时候出现libtool: line 990: g++: command not found错误，第一感觉是gcc没有编译完整，于是，yum -y install g++，无解。于是编译第三方yum源，问题依旧。在于是，yum -y update gcc，再次无解。。。痛下决心。。yum -y install gcc+ gcc-c++。。漫长的等待。完成后再次执行make命令错误消失
[root@hyousoft pcre-8.00]# make ----------------------第一次make报错
make all-am
make[1]: Entering directory `/usr/app/pcre-8.00'
source='pcrecpp.cc' object='pcrecpp.lo' libtool=yes \
DEPDIR=.deps depmode=none /bin/sh ./depcomp \
/bin/sh ./libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -c -o pcrecpp.lo pcrecpp.cc
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcrecpp.cc -o .libs/pcrecpp.o
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcrecpp.cc >/dev/null 2>&1
source='pcre_scanner.cc' object='pcre_scanner.lo' libtool=yes \
DEPDIR=.deps depmode=none /bin/sh ./depcomp \
/bin/sh ./libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -c -o pcre_scanner.lo pcre_scanner.cc
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcre_scanner.cc -o .libs/pcre_scanner.o
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcre_scanner.cc >/dev/null 2>&1
source='pcre_stringpiece.cc' object='pcre_stringpiece.lo' libtool=yes \
DEPDIR=.deps depmode=none /bin/sh ./depcomp \
/bin/sh ./libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -c -o pcre_stringpiece.lo pcre_stringpiece.cc
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcre_stringpiece.cc -o .libs/pcre_stringpiece.o
libtool: compile: g++ -DHAVE_CONFIG_H -I. -c pcre_stringpiece.cc >/dev/null 2>&1
/bin/sh ./libtool --tag=CXX --mode=link g++ -version-info 0:0:0 -o libpcrecpp.la -rpath /usr/local/lib pcrecpp.lo pcre_scanner.lo pcre_stringpiece.lo libpcre.la
libtool: link: unsupported hardcode properties
libtool: link: See the libtool documentation for more information.
libtool: link: Fatal configurationerror.
make[1]: *** [libpcrecpp.la] 错误 1
make[1]: Leaving directory `/usr/app/pcre-8.00'
make: *** [all] 错误 2
解决办法： 再一次： ./configure 之后执行：make
------------------------------------------------------------------------第二次报错
/bin/sh ./libtool --tag=CXX --mode=link g++ -O2 -version-info 0:0:0 -o libpcrecpp.la -rpath /usr/local/lib pcrecpp.lo pcre_scanner.lo pcre_stringpiece.lo libpcre.la
libtool: link: g++ -shared -nostdlib /usr/lib/gcc/x86_64-redhat-linux/4.4.4/http://www.cnblogs.com/http://www.cnblogs.com/lib64/crti.o /usr/lib/gcc/x86_64-redhat-linux/4.4.4/crtbeginS.o .libs/pcrecpp.o .libs/pcre_scanner.o .libs/pcre_stringpiece.o -Wl,-rpath -Wl,/usr/app/pcre-8.00/.libs -Wl,-rpath -Wl,/usr/local/lib ./.libs/libpcre.so -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4/http://www.cnblogs.com/http://www.cnblogs.com/lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.4/http://www.cnblogs.com/.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-redhat-linux/4.4.4/crtendS.o /usr/lib/gcc/x86_64-redhat-linux/4.4.4/http://www.cnblogs.com/http://www.cnblogs.com/lib64/crtn.o -Wl,-soname -Wl,libpcrecpp.so.0 -o .libs/libpcrecpp.so.0.0.0
/usr/bin/ld: .libs/pcrecpp.o: relocation R_X86_64_32S against `.bss'can not be used when making a shared object; recompile with -fPIC
.libs/pcrecpp.o:could not read symbols: Bad value
collect2: ld returned 1 exit status
make[1]: *** [libpcrecpp.la] 错误 1
make[1]: Leaving directory `/usr/app/pcre-8.00'
make: *** [all] 错误 2
解决办法：./configure --disable-shared --with-pic 之后执行：make 没有错误