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Replace obsolete autoconf macros with their modern replacements.

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AC_TRY_COMPILE(...) -> AC_COMPILE_IFELSE([AC_LANG_PROGRAM(...)])
AC_TRY_LINK(...) -> AC_LINK_IFELSE([AC_LANG_PROGRAM(...)])
AC_TRY_RUN(...) -> AC_RUN_IFELSE([AC_LANG_PROGRAM(...)])
AC_LANG_SAVE/RESTORE -> AC_LANG_PUSH/POP
AC_DECL_SYS_SIGLIST -> AC_CHECK_DECLS(...) (per snippet in autoconf manual)

Also use AC_LANG_SOURCE instead of AC_LANG_PROGRAM, where the main()
function is not needed.

With these changes, autoconf -Wall doesn't complain anymore.

Andreas Karlsson
This commit is contained in:
Heikki Linnakangas
2015-07-02 19:21:23 +03:00
parent 7b156c1e07
commit a2edb023d0
7 changed files with 107 additions and 126 deletions
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36
config/c-library.m4
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@ -8,13 +8,13 @@
# HAVE_INT_TIMEZONE.
AC_DEFUN([PGAC_VAR_INT_TIMEZONE],
[AC_CACHE_CHECK(for int timezone, pgac_cv_var_int_timezone,
[AC_TRY_LINK([#include <time.h>
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <time.h>
int res;],
[#ifndef __CYGWIN__
res = timezone / 60;
#else
res = _timezone / 60;
#endif],
#endif])],
[pgac_cv_var_int_timezone=yes],
[pgac_cv_var_int_timezone=no])])
if test x"$pgac_cv_var_int_timezone" = xyes ; then
@ -41,13 +41,13 @@ if test "$ac_cv_member_struct_tm_tm_zone" = yes; then
`HAVE_STRUCT_TM_TM_ZONE' instead.])
fi
AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
[AC_TRY_LINK(
[#include <time.h>
[AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <time.h>
#ifndef tzname /* For SGI. */
extern char *tzname[]; /* RS6000 and others reject char **tzname. */
#endif
],
[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
]],
[atoi(*tzname);])], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
if test $ac_cv_var_tzname = yes; then
AC_DEFINE(HAVE_TZNAME, 1,
[Define to 1 if you have the external array `tzname'.])
@ -62,10 +62,10 @@ fi
AC_DEFUN([PGAC_FUNC_GETTIMEOFDAY_1ARG],
[AC_CACHE_CHECK(whether gettimeofday takes only one argument,
pgac_cv_func_gettimeofday_1arg,
[AC_TRY_COMPILE([#include <sys/time.h>],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/time.h>],
[struct timeval *tp;
struct timezone *tzp;
gettimeofday(tp,tzp);],
gettimeofday(tp,tzp);])],
[pgac_cv_func_gettimeofday_1arg=no],
[pgac_cv_func_gettimeofday_1arg=yes])])
if test x"$pgac_cv_func_gettimeofday_1arg" = xyes ; then
@ -86,13 +86,13 @@ AH_VERBATIM(GETTIMEOFDAY_1ARG_,
AC_DEFUN([PGAC_FUNC_STRERROR_R_INT],
[AC_CACHE_CHECK(whether strerror_r returns int,
pgac_cv_func_strerror_r_int,
[AC_TRY_COMPILE([#include <string.h>],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <string.h>],
[#ifndef _AIX
int strerror_r(int, char *, size_t);
#else
/* Older AIX has 'int' for the third argument so we don't test the args. */
int strerror_r();
#endif],
#endif])],
[pgac_cv_func_strerror_r_int=yes],
[pgac_cv_func_strerror_r_int=no])])
if test x"$pgac_cv_func_strerror_r_int" = xyes ; then
@ -181,12 +181,12 @@ AC_DEFUN([PGAC_STRUCT_ADDRINFO],
# a fancier check.
AC_DEFUN([PGAC_FUNC_POSIX_SIGNALS],
[AC_CACHE_CHECK(for POSIX signal interface, pgac_cv_func_posix_signals,
[AC_TRY_LINK([#include <signal.h>
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <signal.h>
],
[struct sigaction act, oact;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
sigaction(0, &act, &oact);],
sigaction(0, &act, &oact);])],
[pgac_cv_func_posix_signals=yes],
[pgac_cv_func_posix_signals=no])])
if test x"$pgac_cv_func_posix_signals" = xyes ; then
@ -210,7 +210,7 @@ AC_DEFUN([PGAC_FUNC_SNPRINTF_LONG_LONG_INT_MODIFIER],
[AC_MSG_CHECKING([snprintf length modifier for long long int])
AC_CACHE_VAL(pgac_cv_snprintf_long_long_int_modifier,
[for pgac_modifier in 'll' 'q' 'I64'; do
AC_TRY_RUN([#include <stdio.h>
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
typedef long long int ac_int64;
#define INT64_FORMAT "%${pgac_modifier}d"
@ -233,7 +233,7 @@ int does_int64_snprintf_work()
}
main() {
exit(! does_int64_snprintf_work());
}],
}]])],
[pgac_cv_snprintf_long_long_int_modifier=$pgac_modifier; break],
[],
[pgac_cv_snprintf_long_long_int_modifier=cross; break])
@ -259,7 +259,7 @@ esac])# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_MODIFIER
AC_DEFUN([PGAC_FUNC_SNPRINTF_ARG_CONTROL],
[AC_MSG_CHECKING([whether snprintf supports argument control])
AC_CACHE_VAL(pgac_cv_snprintf_arg_control,
[AC_TRY_RUN([#include <stdio.h>
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <string.h>
int main()
@ -271,7 +271,7 @@ int main()
if (strcmp(buf, "4 3") != 0)
return 1;
return 0;
}],
}]])],
[pgac_cv_snprintf_arg_control=yes],
[pgac_cv_snprintf_arg_control=no],
[pgac_cv_snprintf_arg_control=cross])
@ -288,7 +288,7 @@ AC_MSG_RESULT([$pgac_cv_snprintf_arg_control])
AC_DEFUN([PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT],
[AC_MSG_CHECKING([whether snprintf supports the %z modifier])
AC_CACHE_VAL(pgac_cv_snprintf_size_t_support,
[AC_TRY_RUN([#include <stdio.h>
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <string.h>
int main()
@ -308,7 +308,7 @@ int main()
if (strcmp(bufz, buf64) != 0)
return 1;
return 0;
}],
}]])],
[pgac_cv_snprintf_size_t_support=yes],
[pgac_cv_snprintf_size_t_support=no],
[pgac_cv_snprintf_size_t_support=cross])