从11.2版起,Oracle取消了ORACLE_HOME下的lib32 Directory,从32/64bit的双轨制彻底走向64bit的单轨路线。 对于一些还希望使用32bit的人,解决问题的办法就是再安装一个32bit的Oracle Client。(当然,这回生成另一个ORACLE HOME。这应该没问题,可惜我没试
从11.2版起,Oracle取消了ORACLE_HOME下的lib32 Directory,从32/64bit的双轨制彻底走向64bit的单轨路线。
对于一些还希望使用32bit的人,解决问题的办法就是再安装一个32bit的Oracle Client。(当然,这回生成另一个ORACLE HOME。这应该没问题,可惜我没试过。)
但是,我遇到的问题是,用户希望升级到64bit,从原来的cc更换到gcc,但又不愿修改大量的make文件。
1. 安装gcc package。
首先搜索gcc。
# pkg search gcc
INDEX ACTION VALUE PACKAGE
pkg.description set GCC Runtime - Shared libraries used by gcc and other gnu components pkg:/system/library/gcc-3-runtime@3.4.3-0.175.0.0.0.2.537
pkg.summary set GCC Runtime libraries pkg:/system/library/gcc-3-runtime@3.4.3-0.175.0.0.0.2.537
pkg.summary set GCC - 4.5 Compilers pkg:/developer/gcc-45@4.5.2-0.175.0.0.0.2.537
pkg.summary set GCC - 4.5 Runtime pkg:/system/library/gcc-45-runtime@4.5.2-0.175.0.0.0.2.537
basename hardlink usr/sfw/bin/gcc pkg:/developer/gcc-3@3.4.3-0.175.0.0.0.2.537
basename link usr/bin/gcc pkg:/developer/gcc-45@4.5.2-0.175.0.0.0.2.537
pkg.description set GCC Runtime - Shared libraries used by gcc and other gnu components pkg:/system/library/gcc-3-runtime@3.4.3-0.175.0.0.0.2.537
pkg.summary set gcc - The GNU C compiler pkg:/developer/gcc-3@3.4.3-0.175.0.0.0.2.537
basename dir usr/gcc pkg:/system/library/gcc-45-runtime@4.5.2-0.175.0.0.0.2.537
basename dir usr/gcc/4.5/lib/gcc pkg:/system/library/gcc-45-runtime@4.5.2-0.175.0.0.0.2.537
basename dir usr/sfw/lib/gcc pkg:/developer/gcc-3@3.4.3-0.175.0.0.0.2.537
basename dir usr/sfw/libexec/gcc pkg:/developer/gcc-3@3.4.3-0.175.0.0.0.2.537
basename dir usr/gcc pkg:/developer/gcc-45@4.5.2-0.175.0.0.0.2.537
basename dir usr/gcc/4.5/lib/gcc pkg:/developer/gcc-45@4.5.2-0.175.0.0.0.2.537
basename file usr/gcc/4.5/bin/gcc pkg:/developer/gcc-45@4.5.2-0.175.0.0.0.2.537
这里给出了好几个版本的gcc Package信息。
比如,你想安装3.4.3版的gcc compiler。
# pkg install pkg:/developer/gcc-3@3.4.3-0.175.0.0.0.2.537
2. 为了不修改make文件而做的一个cc文件
下面是一个使用Unix原装cc的Make文件的例子(部分)。
# makefile
PROC = proc
CC = cc
INCLUDE = -I ${ORACLE_HOME}/precomp/public -I ../inc
INC = ${HOME}/JBP/src/inc/
OBJ = ${HOME}/JBP/src/obj/
......
安装的gcc在哪里?
#which gcc
/usr/sfw/bin/gcc
做个cc文件,其内容超简单:
/usr/sfw/bin/gcc -m64 $*
注意,这里的 -m64, 它指示gcc生成64bit编译代码。
$* 则接收cc 之后的一切参数。
cc必须可执行。
# ls -l cc
-rwxr-xr-x 1 root root 25 Nov 6 14:21 cc
3. 验证
$ echo $SHELL
/usr/bin/bash
$ echo $PATH
/usr/bin:/usr/sbin:/usr/sfw/bin
$ which cc
/usr/sfw/bin/cc
$ more test.c
#include
int main(void){
printf("Content-type: text/plain\n\n");
printf("Hello, World!");
return 0;
}
$ cc test.c
$ ls -ltr
total 15
-rw-r--r-- 1 zhang staff 130 11月 5日 17:46 test.c
-rwxr-xr-x 1 zhang staff 9992 11月 7日 13:11 a.out
$ file a.out
a.out: ELF 64-bit LSB executable AMD64 Version 1, dynamically linked, not stripped, no debugging information available
可见,使用gcc的别名产生的Object文件是64bit。
同理,使用make文件的编译链接也未见异常。

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