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4e11e3d07a
On recent GNU and other C23ish platforms, do not compile files like lib/stdc_bit_ceil.c, as the corresponding .o files contain nothing useful. * m4/stdbit_h.m4 (gl_STDBIT_H): Define the Automake condition GL_HAVE_STDBIT_H. Quote cache variables in case the cache is bad. * modules/stdc_bit_ceil, modules/stdc_bit_floor: * modules/stdc_bit_width, modules/stdc_count_ones: * modules/stdc_count_zeros, modules/stdc_first_leading_one: * modules/stdc_first_leading_zero: * modules/stdc_first_trailing_one: * modules/stdc_first_trailing_zero, modules/stdc_has_single_bit: * modules/stdc_leading_ones, modules/stdc_leading_zeros: * modules/stdc_trailing_ones, modules/stdc_trailing_zeros: Generate if !GL_HAVE_STDBIT_H, not if GL_GENERATE_STDBIT_H.
30 lines
416 B
Plaintext
30 lines
416 B
Plaintext
Description:
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stdc_bit_floor macro, stdc_bit_floor_* functions:
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Return the largest power of 2 that is ≤ a given unsigned integer.
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Files:
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lib/stdc_bit_floor.c
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Depends-on:
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stdbit-h
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stdc_bit_width
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configure.ac:
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AC_REQUIRE([gl_STDBIT_H])
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gl_STDBIT_MODULE_INDICATOR([stdc_bit_floor])
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Makefile.am:
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if GL_HAVE_STDBIT_H
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else
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lib_SOURCES += stdc_bit_floor.c
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endif
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Include:
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<stdbit.h>
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License:
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LGPLv2+
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Maintainer:
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all
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