帮忙看看这样的错误如何解决

gtkdateentry.h:71: 错误：expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gtk_dateentry_get_type’
gtkdateentry.c: 在函数‘gtk_dateentry_init’中:
gtkdateentry.c:211: 错误：‘GtkSignalFunc’未声明(在此函数内第一次使用)
gtkdateentry.c:211: 错误：(即使在一个函数内多次出现，每个未声明的标识符在其
gtkdateentry.c:211: 错误：所在的函数内也只报告一次。)
gtkdateentry.c:211: 错误：expected ‘)’ before ‘gtk_dateentry_arrow_press’
gtkdateentry.c:214: 错误：expected ‘)’ before ‘gtk_dateentry_entry_new’
gtkdateentry.c:217: 错误：expected ‘)’ before ‘gtk_dateentry_focus’
make[2]: *** [gtkdateentry.o] 错误 1
make[2]: *** 正在等待未完成的任务....
In file included from gtkchart.c:25:
gtkchart.h:130: 错误：expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gtk_chart_get_type’
In file included from homebank.h:43,
from gtkchart.c:26:
gtkdateentry.h:71: 错误：expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gtk_dateentry_get_type’
make[2]: *** [gtkchart.o] 错误 1
make[2]: Leaving directory `/var/tmp/portage/app-office/homebank-3.8/work/homebank-3.8/src'
make[1]: *** [all-recursive] 错误 1
make[1]: Leaving directory `/var/tmp/portage/app-office/homebank-3.8/work/homebank-3.8'
make: *** [all] 错误 2
*
* ERROR: app-office/homebank-3.8 failed.
* Call stack:
* ebuild.sh, line 49: Called src_compile
* environment, line 2521: Called die
* The specific snippet of code:
* emake || die "Compilation failed"
* The die message:
* Compilation failed
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/app-office/homebank-3.8/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/app-office/homebank-3.8/temp/environment'.
*

>>> Failed to emerge app-office/homebank-3.8, Log file:

>>> '/var/tmp/portage/app-office/homebank-3.8/temp/build.log'

* Messages for package app-office/homebank-3.8:

*
* ERROR: app-office/homebank-3.8 failed.
* Call stack:
* ebuild.sh, line 49: Called src_compile
* environment, line 2521: Called die
* The specific snippet of code:
* emake || die "Compilation failed"
* The die message:
* Compilation failed
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/app-office/homebank-3.8/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/app-office/homebank-3.8/temp/environment'.
*