【发布时间】:2012-04-15 13:18:19
【问题描述】:
我无法在 Ubuntu 上针对 glib 编译一个简单的示例程序。我收到以下错误。我可以编译它,但不能与 -c 标志链接,我相信这意味着我安装了 glib 标头,但它没有找到共享对象代码。另请参阅下面的Make 文件。
$> make re
gcc -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -lglib-2.0 re.c -o re
/tmp/ccxas1nI.o: In function `print_uppercase_words':
re.c:(.text+0x21): undefined reference to `g_regex_new'
re.c:(.text+0x41): undefined reference to `g_regex_match'
re.c:(.text+0x54): undefined reference to `g_match_info_fetch'
re.c:(.text+0x6e): undefined reference to `g_print'
re.c:(.text+0x7a): undefined reference to `g_free'
re.c:(.text+0x8b): undefined reference to `g_match_info_next'
re.c:(.text+0x97): undefined reference to `g_match_info_matches'
re.c:(.text+0xa7): undefined reference to `g_match_info_free'
re.c:(.text+0xb3): undefined reference to `g_regex_unref'
collect2: ld returned 1 exit status
make: *** [re] Error 1
Makefile 已使用:
# Need to installed libglib2.0-dev some system specific install that will
# provide a value for pkg-config
INCLUDES=$(shell pkg-config --libs --cflags glib-2.0)
CC=gcc $(INCLUDES)
PROJECT=re
# Targets
full: clean compile
clean:
rm $(PROJECT)
compile:
$(CC) $(PROJECT).c -o $(PROJECT)
.c 正在编译的代码:
#include <glib.h>
void print_upppercase_words(const gchar *string)
{
/* Print all uppercase-only words. */
GRegex *regex;
GMatchInfo *match_info;
regex = g_regex_new("[A-Z]+", 0, 0, NULL);
g_regex_match(regex, string, 0, &match_info);
while (g_match_info_matches(match_info))
{
gchar *word = g_match_info_fetch(match_info, 0);
g_print("Found %s\n", word);
g_free(word);
g_match_info_next(match_info, NULL);
}
g_match_info_free(match_info);
g_regex_unref(regex);
}
int main()
{
gchar *string = "My body is a cage. My mind is THE key.";
print_uppercase_words(string);
}
奇怪的是,当我运行 glib-config 时,它不喜欢那个命令,尽管当它抱怨 gdlib-config 在这些命令中时,我不知道如何告诉 Bash 或 Make 如何只使用一个而不是另一个两个包。
$> glib-config
No command 'glib-config' found, did you mean:
Command 'gdlib-config' from package 'libgd2-xpm-dev' (main)
Command 'gdlib-config' from package 'libgd2-noxpm-dev' (main)
glib-config: command not found
【问题讨论】:
-
那么解决方案是什么,我不明白?
标签: c compilation linker