conflicting types for xx错误
(2012-08-31 10:50:43)
标签:
杂谈 |
分类: LinuxOS |
编译libvmi 0.8版本时,出现以下错误:
libtool: compile: gcc
-DHAVE_CONFIG_H -I. -I.. -I.. -fvisibility=hidden
-I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g -O2 -MT
libvmi_la-pretty_print.lo -MD -MP -MF
.deps/libvmi_la-pretty_print. Tpo -c pretty_print.c
-fPIC -DPIC -o
.libs/libvmi_la-pretty_print.o
pretty_print.c:31: error: conflicting types for
‘vmi_print_hex’
libvmi.h:749:
note: previous declaration of ‘vmi_print_hex’ was here
make[3]: ***
[libvmi_la-pretty_print.lo] Fehler 1
make[3]: Leaving directory
`/usr/local/src/libvmi-0.8/ libvmi'
make[2]: *** [all-recursive]
Fehler 1
make[2]: Leaving directory
`/usr/local/src/libvmi-0.8/ libvmi'
make[1]: *** [all-recursive]
Fehler 1
make[1]: Leaving directory
`/usr/local/src/libvmi-0.8'
make: *** [all] Fehler
2
解决方案:
将libvmi/libvmi.h:void vmi_print_hex (unsigned char *data, unsigned long length);和
libvmi/pretty_print.c:void vmi_print_hex
(unsigned char *data, size_t
length)
中的数据类型改为一致的即可。
常见此类问题的原因如下(引)
错误:
test.c:22: error: conflicting
types for 'urlencode'
test.c:18: error: previous implicit declaration of 'urlencode' was
here
原因一:
原来是因为没有先做函数声明,而函数位于main()之后。
在main函数前声明了函数原型后,一切ok.
原因二:
头文件的被循环引用,在引用时考虑清楚包含顺序
原因三:
头文件声明和定义参数稍有不同
例:
这是就会发生conflicting types for 错误问题