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patch 7.4.1463

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Problem:    Configure doesn't find isinf() and isnan() on some systems.
Solution:   Use a configure check that includes math.h.
This commit is contained in:
Bram Moolenaar
2016-02-29 21:38:26 +01:00
parent 2f6271b1e7
commit a6b8976bb7
3 changed files with 95 additions and 2 deletions
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66
src/auto/configure vendored
View File

@@ -11858,7 +11858,7 @@ for ac_func in bcmp fchdir fchown fsync getcwd getpseudotty \
setpgid setsid sigaltstack sigstack sigset sigsetjmp sigaction \
sigvec strcasecmp strerror strftime stricmp strncasecmp \
strnicmp strpbrk strtol tgetent towlower towupper iswupper \
usleep utime utimes isnan isinf
usleep utime utimes
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -12379,6 +12379,70 @@ if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }; $as_echo "#define HAVE_FLOAT_FUNCS 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf()" >&5
$as_echo_n "checking for isinf()... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#endif
int
main ()
{
int r = isinf(1.11);
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }; $as_echo "#define HAVE_ISINF 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan()" >&5
$as_echo_n "checking for isnan()... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#endif
int
main ()
{
int r = isnan(1.11);
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }; $as_echo "#define HAVE_ISNAN 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

29
src/configure.in
View File

@@ -3565,7 +3565,7 @@ AC_CHECK_FUNCS(bcmp fchdir fchown fsync getcwd getpseudotty \
setpgid setsid sigaltstack sigstack sigset sigsetjmp sigaction \
sigvec strcasecmp strerror strftime stricmp strncasecmp \
strnicmp strpbrk strtol tgetent towlower towupper iswupper \
usleep utime utimes isnan isinf)
usleep utime utimes)
AC_FUNC_FSEEKO
dnl define _LARGE_FILES, _FILE_OFFSET_BITS and _LARGEFILE_SOURCE when
@@ -3668,6 +3668,33 @@ AC_TRY_LINK([
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FLOAT_FUNCS),
AC_MSG_RESULT(no))
dnl isinf() and isnan() need to include header files and may need -lm.
AC_MSG_CHECKING([for isinf()])
AC_TRY_LINK([
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#endif
], [int r = isinf(1.11); ],
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ISINF),
AC_MSG_RESULT(no))
AC_MSG_CHECKING([for isnan()])
AC_TRY_LINK([
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#endif
], [int r = isnan(1.11); ],
AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ISNAN),
AC_MSG_RESULT(no))
dnl Link with -lposix1e for ACL stuff; if not found, try -lacl for SGI
dnl when -lacl works, also try to use -lattr (required for Debian).
dnl On Solaris, use the acl_get/set functions in libsec, if present.

2
src/version.c
View File

@@ -743,6 +743,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1463,
/**/
1462,
/**/