Qt编译错误时使用tslib与angstrom g ++

Question

在上述情况下，我收到以下编译错误。有人能告诉我为什么吗？我使用下面的文档作为我的引导线

http://billforums.station51.net/viewtopic.php?f=8&t=15

ts_test.o: In function `main': 
ts_test.c:(.text+0x1d8): undefined reference to `rpl_malloc' 
fbutils.o: In function `open_framebuffer': 
fbutils.c:(.text+0xa7c): undefined reference to `rpl_malloc' 
collect2: ld returned 1 exit status 
make[2]: *** [ts_test] Error 1 
ts_harvest.o: In function `main': 
ts_harvest.c:(.text+0x5d0): undefined reference to `rpl_malloc' 
fbutils.o: In function `open_framebuffer': 
fbutils.c:(.text+0xa7c): undefined reference to `rpl_malloc' 
collect2: ld returned 1 exit status 
make[2]: *** [ts_harvest] Error 1 
make[2]: Leaving directory `/home/thwijeth/Downloads/tslib-1.0/tests' 
make[1]: *** [all-recursive] Error 1 
make[1]: Leaving directory `/home/thwijeth/Downloads/tslib-1.0' 
make: *** [all] Error 2 
ts_test.o: In function `main': 
ts_test.c:(.text+0x1d8): undefined reference to `rpl_malloc' 
fbutils.o: In function `open_framebuffer': 
fbutils.c:(.text+0xa7c): undefined reference to `rpl_malloc' 
collect2: ld returned 1 exit status 
make[2]: *** [ts_test] Error 1 
ts_harvest.o: In function `main': 
ts_harvest.c:(.text+0x5d0): undefined reference to `rpl_malloc' 
fbutils.o: In function `open_framebuffer': 
fbutils.c:(.text+0xa7c): undefined reference to `rpl_malloc' 
collect2: ld returned 1 exit status 
make[2]: *** [ts_harvest] Error 1 
make[2]: Leaving directory `/home/thwijeth/Downloads/tslib-1.0/tests' 
make[1]: *** [all-recursive] Error 1 
make[1]: Leaving directory `/home/thwijeth/Downloads/tslib-1.0' 
make: *** [all] Error 2 

Answer 1

一个simple Google search on "rpl_malloc"发现这个问题多次提到，与解决方案的建议。问题在于Autoconf配置脚本出于某种原因难以找到malloc，并试图回退到rpl_malloc。有一对夫妇的建议，以解决此问题：

1）定义ac_cv_func_malloc_0_nonnull=yes环境变量，您可以通过运行configure（假设一个bash shell中运行configure之前，例如）为：

ac_cv_func_malloc_0_nonnull=yes ./configure <your configure options> 

或

2.）手动更改配置脚本，将rpl_malloc problem AC_FUNC_MALLOC行注释为#的前缀。

（参考：this blog post, among others）