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Build error with gcc and cortex_m7/gcc/libtouchgfx-float-abi-hard.a

MNils.2
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Hi, 
how exactly is the cortex_m7/gcc/libtouchgfx-float-abi-hard.a built (i.e compile and link options)?

For example if a make a object dump on the lib I get:
touchgfx::muldiv(long, long, long)

But the header file use int32_t instead of long and that gives a link error.
undefined reference to `touchgfx::muldiv(int, int, int)

 

If I change the header file to use long instead it builds.

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