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個人嘗試了C、python、perl三種語言的API，感覺perl的API功能相對來說齊全一點。Gearman::XS是perl的開源支持。其鏈接如下：http://search.cpan.org/~krow/Gearman-XS/

在RHEL5.7下安裝的Gearman::XS，中間會出現(xiàn)各種問題，此處給出這些問題的解決方法供大家參考。

首先，我使用了cpanm來安裝Gearman::XS，結(jié)果如下：

[@localhost yunfei]# cpanm Gearman::XS
--> Working on Gearman::XS
Fetching http://www.cpan.org/authors/id/K/KR/KROW/Gearman-XS-0.15.tar.gz ... OK
Configuring Gearman-XS-0.15 ... OK
Building and testing Gearman-XS-0.15 ... FAIL
! Installing Gearman::XS failed. See /root/.cpanm/work/1392343258.18128/build.log for details. Retry with --force to force install it.

顯然force強(qiáng)制安裝肯定是不行的，所以就找原因。查看 /root/.cpanm/work/1392343258.18128/build.log文件，發(fā)現(xiàn)其中有如下的提示：

gcc -c -Wall -Wundef -Wno-shadow -Wmissing-prototypes -fdiagnostics-show-option -Wformat=2 -Wstrict-aliasing -Wextra -Wmissing-declarations -Wcast-align -Wswitch-default -Wswitch-enum -Wno-undef -Wno-unused-value -Wno-unused-variable -Wno-unused-parameter -Wno-format-invalid-specifier -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -DVERSION=\"0.15\" -DXS_VERSION=\"0.15\" -fPIC "-I/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/CORE" XS.c
cc1: error: unrecognized command line option "-Wno-format-invalid-specifier"
make: *** [XS.o] Error 1
-> FAIL Installing Gearman::XS failed.

看到是在編譯的時候出了問題，所以，咱們切換到它的編譯目錄（即 /root/.cpanm/work/1392343258.18128/這個目錄）

cd /root/.cpanm/work/1392343258.18128/Gearman-XS-0.15

然后執(zhí)行make命令，就可以看到上面報的編譯錯誤了。ok，下面就著手解決它。

vi Makefile

可以找到：

CCFLAGS = -Wall -Wundef -Wno-shadow -Wmissing-prototypes -fdiagnostics-show-option -Wformat=2 -Wstrict-aliasing -Wextra -Wmissing-declarations -Wcast-align -Wswitch-default -Wswitch-enum -Wno-undef -Wno-unused-value -Wno-unused-variable -Wno-unused-parameter -Wno-format-invalid-specifier

刪掉最后的“-Wno-format-invalid-specifier”這個選項，然后保存退出，再次執(zhí)行make。

會發(fā)現(xiàn)報出如下錯誤：

In file included from XS.xs:11:
gearman_xs.h:18:36: error: libgearman-1.0/gearman.h: No such file or directory
XS.c: In function 'XS_Gearman__XS_strerror':
XS.c:229: error: 'gearman_return_t' undeclared (first use in this function)
XS.c:229: error: (Each undeclared identifier is reported only once
XS.c:229: error: for each function it appears in.)
XS.c:229: error: expected ';' before 'rc'
XS.xs:82: warning: implicit declaration of function 'gearman_strerror'
XS.xs:82: error: 'rc' undeclared (first use in this function)
XS.xs:82: warning: assignment makes pointer from integer without a cast
make: *** [XS.o] Error 1

很明顯，是找不到gearman.h，也就是說需要gearman-devel，正常情況下通過yum直接安裝gearman-devel包就可以解決這個問題，但是，我的rhel是手動安裝的Gearman-1.1.11版本，和yum安裝的版本不一致，所以，再次打開并修改Makefile。

找到INC以及LDDLFLAGS，修改為如下內(nèi)容：

LDDLFLAGS = -shared -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -L/usr/local/gearman/lib/ -lgearman
 
INC = -I/usr/local/gearman/include/ -L/usr/local/gearman/lib/

可以看到就是加入了Gearman的incule以及l(fā)ib相關(guān)的東西。保存退出Makefile，再次執(zhí)行make，順利通過，然后make install就安裝完畢了。

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