Dear Gnulib maintainers, Please see the below bug report regarding Gnulib compatibility with x86_64-pc-linux-uclibc. This was reported to the Emacs bug tracker.
Full discussion here: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=42236 You can also find a proposed patch here: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=42236#11 Best regards, Stefan Kangas -------------------- Start of forwarded message -------------------- Subject: bug#42236: 28.0.50; 118c07e02e breaks linux uclibc build To: 42...@debbugs.gnu.org From: akater <nuclearsp...@gmail.com> Date: Mon, 06 Jul 2020 20:36:24 +0000
Commit 118c07e02e939c9f52688091509d4bff2a897032 broke my x86_64-pc-linux-uclibc build with the following error (gcc-9.3.0): > x86_64-pc-linux-uclibc-gcc -c -MMD -MF deps/getrandom.d -MP -fno-common -W > -Wabsolute-value -Waddress -Waddress-of-packed-member > -Waggressive-loop-optimizations -Wall -Wattribute-warning -Wattributes > -Wbool-compare -Wbool-operation -Wbuiltin-declaration-mismatch > -Wbuiltin-macro-redefined -Wcannot-profile -Wcast-function-type > -Wchar-subscripts -Wclobbered -Wcomment -Wcomments -Wcoverage-mismatch -Wcpp > -Wdangling-else -Wdate-time -Wdeprecated -Wdeprecated-declarations > -Wdesignated-init -Wdisabled-optimization -Wdiscarded-array-qualifiers > -Wdiscarded-qualifiers -Wdiv-by-zero -Wdouble-promotion -Wduplicated-cond > -Wduplicate-decl-specifier -Wempty-body -Wendif-labels -Wenum-compare > -Wexpansion-to-defined -Wextra -Wformat-contains-nul -Wformat-extra-args > -Wformat-security -Wformat-signedness -Wformat-y2k -Wformat-zero-length > -Wframe-address -Wfree-nonheap-object -Whsa -Wif-not-aligned > -Wignored-attributes -Wignored-qualifiers -Wimplicit > -Wimplicit-function-declaration -Wimplicit-int -Wincompatible-pointer-types > -Winit-self -Wint-conversion -Wint-in-bool-context -Wint-to-pointer-cast > -Winvalid-memory-model -Winvalid-pch -Wlogical-not-parentheses -Wlogical-op > -Wmain -Wmaybe-uninitialized -Wmemset-elt-size -Wmemset-transposed-args > -Wmisleading-indentation -Wmissing-attributes -Wmissing-braces > -Wmissing-declarations -Wmissing-include-dirs -Wmissing-parameter-type > -Wmissing-profile -Wmissing-prototypes -Wmultichar -Wmultistatement-macros > -Wnarrowing -Wnested-externs -Wnonnull -Wnonnull-compare -Wnull-dereference > -Wodr -Wold-style-declaration -Wold-style-definition -Wopenmp-simd -Woverflow > -Wpacked -Wpacked-bitfield-compat -Wpacked-not-aligned -Wparentheses > -Wpointer-arith -Wpointer-compare -Wpointer-sign -Wpointer-to-int-cast > -Wpragmas -Wpsabi -Wrestrict -Wreturn-local-addr -Wreturn-type > -Wscalar-storage-order -Wsequence-point -Wshift-count-negative > -Wshift-count-overflow -Wshift-negative-value -Wsizeof-array-argument > -Wsizeof-pointer-div -Wsizeof-pointer-memaccess -Wstrict-aliasing > -Wstrict-prototypes -Wstringop-truncation -Wsuggest-attribute=format > -Wsuggest-attribute=malloc -Wsuggest-attribute=noreturn > -Wsuggest-final-methods -Wsuggest-final-types -Wswitch-bool > -Wswitch-unreachable -Wtautological-compare -Wtrampolines -Wtrigraphs > -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-but-set-parameter > -Wunused-but-set-variable -Wunused-function -Wunused-label > -Wunused-local-typedefs -Wunused-result -Wunused-value -Wunused-variable > -Wvarargs -Wvariadic-macros -Wvector-operation-performance > -Wvolatile-register-var -Wwrite-strings > -Walloc-size-larger-than=9223372036854775807 -Warray-bounds=2 > -Wattribute-alias=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 > -Wnormalized=nfc -Wshift-overflow=2 -Wstringop-overflow=2 > -Wvla-larger-than=4031 -Wredundant-decls -Wno-missing-field-initializers > -Wno-override-init -Wno-sign-compare -Wno-type-limits -Wno-unused-parameter > -Wno-format-nonliteral -march=native -O2 -pipe -I. -I../src -I. -I./../src > getrandom.c > In file included from ./sys/random.h:36, > from getrandom.c:22: > /usr/include/sys/random.h:27:35: error: unknown type name 'size_t' > 27 | extern int getrandom(void *__buf, size_t count, unsigned int flags) > | ^~~~~~ > /usr/include/sys/random.h:8:1: note: 'size_t' is defined in header > '<stddef.h>'; did you forget to '#include <stddef.h>'? > 7 | #include <features.h> > +++ |+#include <stddef.h> > 8 | > getrandom.c: In function 'rpl_getrandom': > getrandom.c:157:10: warning: implicit declaration of function 'getrandom'; > did you mean 'rpl_getrandom'? [-Wimplicit-function-declaration] > 157 | return getrandom (buffer, length, flags); > | ^~~~~~~~~ > | rpl_getrandom > getrandom.c:157:10: warning: nested extern declaration of 'getrandom' > [-Wnested-externs] > make[1]: *** [Makefile:95: getrandom.o] Error 1 > make[1]: Leaving directory > '/var/tmp/portage/app-editors/emacs-28.0.9999/work/emacs/lib' > make: *** [Makefile:411: lib] Error 2 I don't quite understand what I'm doing but including <stddef.h> unconditionally in lib/getrandom.c made Emacs build without any (relevant) warnings.
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