在 Ubuntu-9.10 上安装 libnet-0.10.11 时遇到问题
这就是我所做的...... #tar -xzvf libnet-0.10.11.tar.gz #cd libnet
然后我将linux.mak文件复制到父目录中的port.mak文件中。 然后，正如文档所说，我在当前目录中使用了 make...
naman@naman-laptop:~/Desktop/Software/libnet$ make
make -C lib/ lib
make[1]: Entering directory `/home/naman/Desktop/Software/libnet/lib'
gcc -O2 -Wall -Werror -Wno-unused -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -g -I../include -Iinclude -DTARGET_LINUX -c -o core/config.o core/config.c
cc1: warnings being treated as errors
core/config.c: In function ‘__libnet_internal__seek_section’:
core/config.c:87: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
core/config.c: In function ‘__libnet_internal__get_setting’:
core/config.c:111: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
make[1]: *** [core/config.o] Error 1
make[1]: Leaving directory `/home/naman/Desktop/Software/libnet/lib'
make: *** [lib] Error 2
任何人都可以向我详细解释该错误以及如何纠正它吗？任何帮助将不胜感激。
Here's what I did...
#tar -xzvf libnet-0.10.11.tar.gz
#cd libnet
Then I copied the linux.mak file to the port.mak file in the parent directory.
Then, as the documentation says, I used make in the present directory...
naman@naman-laptop:~/Desktop/Software/libnet$ make
make -C lib/ lib
make[1]: Entering directory `/home/naman/Desktop/Software/libnet/lib'
gcc -O2 -Wall -Werror -Wno-unused -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -g -I../include -Iinclude -DTARGET_LINUX -c -o core/config.o core/config.c
cc1: warnings being treated as errors
core/config.c: In function ‘__libnet_internal__seek_section’:
core/config.c:87: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
core/config.c: In function ‘__libnet_internal__get_setting’:
core/config.c:111: error: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
make[1]: *** [core/config.o] Error 1
make[1]: Leaving directory `/home/naman/Desktop/Software/libnet/lib'
make: *** [lib] Error 2
Can anyone please explain the error to me in detail, and how to rectify it? Any help would be much appreciated.
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https://github.com/sam-github/libnet，这是一个古老的libnet版本，现代的都用autoconf，有必要用这么老的吗？
我建议从您正在使用的 makefile 中删除
-Wall和-Werror。https://github.com/sam-github/libnet, that is an ancient libnet version, modern one uses autoconf, do you need to use such an old one?
I'd suggest removing both
-Walland-Werrorfrom the makefile you are using.看起来您正在尝试在较新的系统上编译较旧的库，并且自编写该库以来，
gcc中已添加新警告。由于 Makefile 将警告视为错误，（您可以看出，因为它打印了
cc1：警告被视为错误）警告warn_unused_result错误导致编译失败。您的选择是：
-Werror参数It looks like you are trying to compile an older library on a newer system, and new warnings have been added to
gccsince this library was written.Since the Makefile has warnings treated as errors, (you can tell because it printed
cc1: warnings being treated as errors) the warningwarn_unused_resulterrors are causing the compile to fail.Your options are to either:
-Werrorparameter(s)