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1 | 1 | # Macros that test various C library quirks |
2 | | -# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.5 2000/11/03 18:43:51 petere Exp $ |
| 2 | +# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.6 2001/01/09 18:40:13 petere Exp $ |
3 | 3 |
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4 | 4 |
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5 | 5 | # PGAC_VAR_INT_TIMEZONE |
@@ -123,3 +123,18 @@ if test x"$pgac_cv_header_strings_both" = x"yes"; then |
123 | 123 | AC_DEFINE([STRING_H_WITH_STRINGS_H],1, |
124 | 124 | [Define if string.h and strings.h may both be included]) |
125 | 125 | fi]) |
| 126 | + |
| 127 | + |
| 128 | +# PGAC_VAR_SYS_NERR |
| 129 | +# ----------------- |
| 130 | +# Check if the global variable 'sys_nerr' exists. If so, define |
| 131 | +# HAVE_SYS_NERR. |
| 132 | +AC_DEFUN([PGAC_VAR_SYS_NERR], |
| 133 | +[AC_CACHE_CHECK([for sys_nerr],pgac_cv_var_sys_nerr, |
| 134 | +[AC_TRY_LINK([extern int sys_nerr;], |
| 135 | +[int x = sys_nerr;], |
| 136 | +[pgac_cv_var_sys_nerr=yes], |
| 137 | +[pgac_cv_var_sys_nerr=no])]) |
| 138 | +if test x"$pgac_cv_var_sys_nerr" = xyes ; then |
| 139 | +AC_DEFINE(HAVE_SYS_NERR,,[Set to 1 if you have the global variable sys_nerr]) |
| 140 | +fi])# PGAC_VAR_SYS_NERR |