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5df4cba632
This is mostly to get this commit from gnulib:
e22cd2677a4b7beacbf30b93bb0559f7b89f96ce
Add ‘extern "C"’ to count-one-bits.h etc.
... which fixes this compilation problem I observed with clang++:
CXXLD gdb
arch/arm-get-next-pcs.o:arm-get-next-pcs.c:function thumb_get_next_pcs_raw(arm_get_next_pcs*): error: undefined reference to 'count_one_bits(unsigned int)'
<more such undefined references>
I built-tested on GNU/Linux x86-64 (gcc-9 and clang-9) as well as with the
x86_64-w64-mingw32-gcc cross-compiler.
gnulib/ChangeLog:
* update-gnulib.sh (GNULIB_COMMIT_SHA1): Bump to
e22cd2677a4b7beacbf30b93bb0559f7b89f96ce.
* Makefile.in, config.in, configure, import/*: Re-generate.
85 lines
3.2 KiB
Plaintext
85 lines
3.2 KiB
Plaintext
# serial 16
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# Copyright (C) 2001, 2003-2004, 2006, 2008-2020 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# On some systems, mkdir ("foo/", 0700) fails because of the trailing slash.
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# On others, mkdir ("foo/./", 0700) mistakenly succeeds.
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# On such systems, arrange to use a wrapper function.
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AC_DEFUN([gl_FUNC_MKDIR],
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[dnl
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AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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AC_CHECK_HEADERS_ONCE([unistd.h])
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AC_CACHE_CHECK([whether mkdir handles trailing slash],
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[gl_cv_func_mkdir_trailing_slash_works],
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[rm -rf conftest.dir
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AC_RUN_IFELSE([AC_LANG_PROGRAM([[
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# include <sys/types.h>
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# include <sys/stat.h>
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]], [return mkdir ("conftest.dir/", 0700);])],
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[gl_cv_func_mkdir_trailing_slash_works=yes],
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[gl_cv_func_mkdir_trailing_slash_works=no],
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[case "$host_os" in
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# Guess yes on Linux systems.
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linux-* | linux) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;;
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# Guess yes on glibc systems.
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*-gnu* | gnu*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;;
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# Guess yes on MSVC, no on mingw.
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mingw*) AC_EGREP_CPP([Known], [
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#ifdef _MSC_VER
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Known
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#endif
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],
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[gl_cv_func_mkdir_trailing_slash_works="guessing yes"],
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[gl_cv_func_mkdir_trailing_slash_works="guessing no"])
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;;
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# If we don't know, obey --enable-cross-guesses.
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*) gl_cv_func_mkdir_trailing_slash_works="$gl_cross_guess_normal" ;;
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esac
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])
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rm -rf conftest.dir
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]
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)
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case "$gl_cv_func_mkdir_trailing_slash_works" in
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*yes) ;;
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*)
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REPLACE_MKDIR=1
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;;
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esac
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AC_CACHE_CHECK([whether mkdir handles trailing dot],
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[gl_cv_func_mkdir_trailing_dot_works],
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[rm -rf conftest.dir
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AC_RUN_IFELSE([AC_LANG_PROGRAM([[
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# include <sys/types.h>
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# include <sys/stat.h>
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]], [return !mkdir ("conftest.dir/./", 0700);])],
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[gl_cv_func_mkdir_trailing_dot_works=yes],
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[gl_cv_func_mkdir_trailing_dot_works=no],
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[case "$host_os" in
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# Guess yes on glibc systems.
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*-gnu* | gnu*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;;
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# Guess yes on musl systems.
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*-musl*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;;
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# Guess no on native Windows.
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mingw*) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;;
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# If we don't know, obey --enable-cross-guesses.
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*) gl_cv_func_mkdir_trailing_dot_works="$gl_cross_guess_normal" ;;
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esac
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])
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rm -rf conftest.dir
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]
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)
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case "$gl_cv_func_mkdir_trailing_dot_works" in
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*yes) ;;
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*)
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REPLACE_MKDIR=1
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AC_DEFINE([FUNC_MKDIR_DOT_BUG], [1], [Define to 1 if mkdir mistakenly
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creates a directory given with a trailing dot component.])
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;;
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esac
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])
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