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d89ea78104
Updated COPYING file to indicate that these files are now covered under "The Unlicense" (see https://unlicense.org): sha1.c sha1.h cal/dotest.cal cal/screen.cal Updated help/credit to match the above changes to COPYING. Updated CONTRIB-CODE and calc.man to refer to using GitHub pull requests for contributing to calc (instead of using Email). Updated BUGS and calc.man to refer to using GitHub issues for reporting calc bugs (instead of using Email). Updated QUESTIONS and calc.man to refer to using GitHub issues for asking calc questions (instead of using Email). Fixed Makefile.local command example to refer to overriding the Makefile variable DEBUG (instead of CDEBUG). Fixed all make chk ASAN warnings under macOS 13.2.1 when calc is compiled with the following uncommented lines in Makefile.local: DEBUG:= -O0 -g CFLAGS+= -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined LDFLAGS+= -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined CALC_ENV+= ASAN_OPTIONS=detect_stack_use_after_return=1 Improved how pointers to functions are declared for the builtins array in func.c to avoid function declarations without a prototype that is now deprecated in C. Improved how pointers to functions are declared for the opcodes array in opcodes.c to avoid function declarations without a prototype Replaced use of egrep with grep -E in Makefiles. Fixed cases where variables were set but not used in symbol.c, calc.c, and the main function in func.c as used by funclist.c. Added rule name to "DO NOT EDIT -- generated by the Makefile" lines in constructed files. Test if <sys/vfs.h> exists and set HAVE_SYS_VFS_H accordingly in have_sys_vfs.h. Added HAVE_SYS_VFS_H to allow one to force this value. Test if <sys/param.h> exists and set HAVE_SYS_PARAM_H accordingly in have_sys_param.h. Added HAVE_SYS_PARAM_H to allow one to force this value. Test if <sys/mount.h> exists and set HAVE_SYS_MOUNT_H accordingly in have_sys_mount.h. Added HAVE_SYS_MOUNT_H to allow one to force this value. Test if the system as the statfs() system call and set HAVE_STATFS accordingly in have_statfs.h. Added HAVE_STATFS to allow one to force this value. The pseudo_seed() function will also try to call statfs() if possible and permitted by the HAVE_STATFS value.
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* have_statfs - Determine if we have statfs()
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*
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* Copyright (C) 2023 Landon Curt Noll
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*
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* Calc is open software; you can redistribute it and/or modify it under
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* the terms of the version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* Calc is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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* Public License for more details.
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*
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* A copy of version 2.1 of the GNU Lesser General Public License is
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* distributed with calc under the filename COPYING-LGPL. You should have
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* received a copy with calc; if not, write to Free Software Foundation, Inc.
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Under source code control: 2023/03/06 00:51:53
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* File existed as early as: 2023
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*
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* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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/*
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* usage:
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* have_statfs
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*
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* Not all systems have the statfs() function, so this may not
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* compile on your system.
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*
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* This prog outputs several defines:
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*
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* HAVE_STATFS
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* defined ==> use statfs()
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* undefined ==> do not call or cannot call statfs()
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "have_sys_vfs.h"
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#if defined(HAVE_SYS_VFS_H)
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# include <sys/vfs.h>
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#endif /* HAVE_SYS_VFS_H */
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#include "have_sys_param.h"
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#if defined(HAVE_SYS_PARAM_H)
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# include <sys/param.h>
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#endif /* HAVE_SYS_PARAM_H */
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#include "have_sys_mount.h"
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#if defined(HAVE_SYS_MOUNT_H)
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# include <sys/mount.h>
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#endif /* HAVE_SYS_MOUNT_H */
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#include "banned.h" /* include after system header <> includes */
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int
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main(void)
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{
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#if defined(HAVE_NO_STATFS)
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printf("#undef HAVE_STATFS /* no */\n");
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#else /* HAVE_NO_STATFS */
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struct statfs statfs_dot; /* usage stat of "." */
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(void) statfs(".", &statfs_dot);
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printf("#define HAVE_STATFS /* yes */\n");
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#endif /* HAVE_NO_STATFS */
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/* exit(0); */
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return 0;
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}
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