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Presume ISO C90 headers are always available

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This includes <assert.h>, <ctype.h>, <errno.h>, <float.h>, <iso646.h>,
<limits.h>, <locale.h>, <math.h>, <setjmp.h>, <signal.h>, <stdarg.h>,
<stddef.h>, <stdio.h>, <stdlib.h>, <string.h>, <time.h>, <wchar.h>,
and <wctype.h>.

* configure.ac: don't check for <limits.h>, <string.h>, <time.h>, <assert.h>.
   Remove AC_INCLUDES_DEFAULT macro
* libguile/bytevectors.c: include <limits.h>, remove HAVE_LIMITS_H
* libguile/filesys.c: include <string.h>, remove HAVE_STRING_H
* libguile/fports.c: include <string.h>, remove HAVE_STRING_H
* libguile/gen-scmconfig.c: remove HAVE_LIMITS_H, HAVE_TIME_H, STDC_HEADERS
    Remove SCM_HAVE_STDC_HEADERS
* libguile/hash.c: include <wchar.h>, remove HAVE_WCHAR_H
* libguile/net_db.c: include <string.h>, remove HAVE_STRING_H
* libguile/numbers.h: remove SCM_HAVE_STDC_HEADERS
* libguile/regex-posix.c: include <wchar.h>, remove HAVE_WCHAR_H
  (fixup_multibyte_match): always defined
  (scm_regexp_exec): use fixup_multibyte_match
* libguile/scmsigs.c: remove STDC_HEADERS
* libguile/socket.c: include <string.h>, remove HAVE_STRING_H
* test-suite/standalone/test-unwind.c: include <string.h>, remove HAVE_STRING_H
This commit is contained in:
Mike Gran 2022-09-15 20:51:05 -07:00
parent 128e0a3479
commit 9b357bace3
12 changed files with 21 additions and 70 deletions
Download patch file Download diff file Expand all files Collapse all files

17
configure.ac
View file

@ -418,10 +418,10 @@ AC_SUBST([SCM_I_GSC_HAVE_STRUCT_DIRENT64])
# sched.h - missing on MinGW
# sys/sendfile.h - non-POSIX, found in glibc
#
AC_CHECK_HEADERS([complex.h fenv.h io.h libc.h limits.h memory.h process.h string.h \
AC_CHECK_HEADERS([complex.h fenv.h io.h libc.h memory.h process.h \
sys/dir.h sys/ioctl.h sys/select.h \
sys/time.h sys/timeb.h sys/times.h sys/stdtypes.h sys/types.h \
sys/utime.h time.h unistd.h utime.h pwd.h grp.h sys/utsname.h \
sys/utime.h unistd.h utime.h pwd.h grp.h sys/utsname.h \
direct.h machine/fpu.h sched.h sys/sendfile.h])
# "complex double" is new in C99, and "complex" is only a keyword if
@ -489,7 +489,7 @@ AM_CONDITIONAL([MINGW_LIBPATH], [test x$mingw_libpath = xtrue])
# Reasons for testing:
# crt_externs.h - Darwin specific
#
AC_CHECK_HEADERS([assert.h crt_externs.h])
AC_CHECK_HEADERS([crt_externs.h])
# Reasons for testing:
# DINFINITY - OSF specific
@ -903,9 +903,7 @@ AC_MSG_CHECKING(whether localtime caches TZ)
AC_CACHE_VAL(guile_cv_localtime_cache,
[if test x$ac_cv_func_tzset = xyes; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
#if STDC_HEADERS
# include <stdlib.h>
#endif
#include <stdlib.h>
extern char **environ;
unset_TZ ()
{
@ -1007,7 +1005,9 @@ int main () { return (isnan(x) != 0); }]])],
#
AC_CHECK_MEMBERS([struct stat.st_rdev, struct stat.st_blksize, struct stat.st_blocks, struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,,
[#define _GNU_SOURCE
AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
])
AC_STRUCT_TIMEZONE
@ -1054,8 +1054,7 @@ GUILE_UNISTRING_ICONVEH_VALUES
SCM_I_GSC_STACK_GROWS_UP=0
AC_RUN_IFELSE([AC_LANG_SOURCE(
[AC_INCLUDES_DEFAULT
int
[int
find_stack_direction (int *addr, int depth)
{
int dir, dummy = 0;