[devel] Re: как правильно слинковать динамическую библиотеку

[Alexey Tourbin <at@turbinal.org>]

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On Wed, Dec 25, 2002 at 08:28:39PM +0300, Dmitry V. Levin wrote:
> Если существует реальное использование этой библиотеки без задействования
> dlopen(3), то не стоит; если не существует, то нужно добавить.

$ echo "main(){}" > ldtest.c
$ gcc ldtest.c -llua -llualib
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `log'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `sqrt'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `ceil'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `floor'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `dlclose'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `fmod'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `cos'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `sin'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `atan2'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `dlopen'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `pow'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `log10'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `dlsym'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `exp'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `tan'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `atan'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `asin'
/usr/lib/gcc-lib/i586-alt-linux/2.96/../../../liblualib.so: undefined reference to `acos'
collect2: ld returned 1 exit status
$

Т.е. с liblua.so всё нормально, а к liblualib.so нужно ещё -lm -ldl?


-- 
WBR, Alexey Tourbin
BIOZAK Ltd., Russia

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