K 10
svn:author
V 6
pkubaj
K 8
svn:date
V 27
2020-08-24T23:35:52.929271Z
K 7
svn:log
V 174
textproc/qr: fix build on GCC architectures

sqrt() is only defined since C99:
/tmp/ccn0UwwD.o:(.text+0x1cc): undefined reference to `sqrt'

MFH:		2020Q3 (fix build blanket)

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