在 Manjaro 上会报错：

用Unity 把算法依葫芦画瓢的搞了一个下来，makefile文盲可以来试试看 <a href="https://github.com/ElPsyCongree/

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Makefile无法正常工作 about light2d HOT 4 OPEN

miloyip commented on July 19, 2024

Makefile无法正常工作

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Comments (4)

kimci86 commented on July 19, 2024 2

I had a similar issue because of a small mistake in the makefile : %.: %.c should be %: %.c (notice the dot). Then I had to add the -lm flag for gcc.

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leinlin commented on July 19, 2024

用Unity 把算法依葫芦画瓢的搞了一个下来，makefile文盲可以来试试看
https://github.com/ElPsyCongree/light2d_for_unity

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miloyip commented on July 19, 2024

@wurui1994 感觉这是平台的问题。例子代码都只使用了 C99 标准库。

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micfan commented on July 19, 2024

gcc (GCC) 8.2.1 20181127 compile error, how to solve it?

gcc -Wall -O3 -o csg csg.c
/usr/bin/ld: /tmp/ccv6tJMs.o: in function `circleSDF':
csg.c:(.text+0xa1a): undefined reference to `sqrtf'
/usr/bin/ld: /tmp/ccv6tJMs.o: in function `scene':
csg.c:(.text+0xc03): undefined reference to `sqrtf'
/usr/bin/ld: csg.c:(.text+0xc30): undefined reference to `sqrtf'
/usr/bin/ld: /tmp/ccv6tJMs.o: in function `trace':
csg.c:(.text+0xd8b): undefined reference to `sqrtf'
/usr/bin/ld: csg.c:(.text+0xe2d): undefined reference to `sqrtf'
/usr/bin/ld: /tmp/ccv6tJMs.o: in function `sample':
csg.c:(.text+0xf0d): undefined reference to `sincosf'
/usr/bin/ld: csg.c:(.text+0x1053): undefined reference to `sqrtf'
/usr/bin/ld: csg.c:(.text+0x10a6): undefined reference to `sqrtf'
/usr/bin/ld: /tmp/ccv6tJMs.o: in function `main':
csg.c:(.text.startup+0x63): undefined reference to `fminf'
collect2: error: ld returned 1 exit status
make: *** [makefile:11: csg] Error 1

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