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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.
33 lines
961 B
Plaintext
33 lines
961 B
Plaintext
# opendir.m4 serial 5
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dnl Copyright (C) 2011-2020 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_OPENDIR],
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[
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AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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AC_CHECK_FUNCS([opendir])
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if test $ac_cv_func_opendir = no; then
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HAVE_OPENDIR=0
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fi
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dnl Replace opendir() for supporting the gnulib-defined fchdir() function,
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dnl to keep fchdir's bookkeeping up-to-date.
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m4_ifdef([gl_FUNC_FCHDIR], [
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gl_TEST_FCHDIR
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if test $HAVE_FCHDIR = 0; then
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if test $HAVE_OPENDIR = 1; then
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REPLACE_OPENDIR=1
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fi
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fi
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])
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dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced
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dnl by gnulib.
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case $host_os,$HAVE_OPENDIR in
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os2*,1)
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REPLACE_OPENDIR=1;;
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esac
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])
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