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1 | 1 | # Macros that test various C library quirks |
2 | | -# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.10 2001/12/20 21:23:05 momjian Exp $ |
| 2 | +# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.11 2002/02/23 04:17:45 petere Exp $ |
3 | 3 |
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4 | 4 |
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5 | 5 | # PGAC_VAR_INT_TIMEZONE |
@@ -196,3 +196,34 @@ if test x"$pgac_cv_header_strings_both" = x"yes"; then |
196 | 196 | AC_DEFINE([STRING_H_WITH_STRINGS_H], 1, |
197 | 197 | [Define if string.h and strings.h may both be included]) |
198 | 198 | fi]) |
| 199 | + |
| 200 | + |
| 201 | +# PGAC_CHECK_MEMBER(AGGREGATE.MEMBER, |
| 202 | +# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], |
| 203 | +# [INCLUDES]) |
| 204 | +# ----------------------------------------------------------- |
| 205 | + |
| 206 | +AC_DEFUN([PGAC_CHECK_MEMBER], |
| 207 | +[changequote(<<, >>)dnl |
| 208 | +dnl The name to #define. |
| 209 | +define(<<pgac_define_name>>, translit(HAVE_$1, [a-z .*], [A-Z__P]))dnl |
| 210 | +dnl The cache variable name. |
| 211 | +define(<<pgac_cache_name>>, translit(pgac_cv_member_$1, [ .*], [__p]))dnl |
| 212 | +changequote([, ])dnl |
| 213 | +AC_CACHE_CHECK([for $1], [pgac_cache_name], |
| 214 | +[AC_TRY_COMPILE([$4], |
| 215 | +[static ]patsubst([$1], [\..*])[ pgac_var; |
| 216 | +if (pgac_var.]patsubst([$1], [^[^.]*\.])[) |
| 217 | +return 0;], |
| 218 | +[pgac_cache_name=yes], |
| 219 | +[pgac_cache_name=no])]) |
| 220 | +
|
| 221 | +if test x"[$]pgac_cache_name" = x"yes"; then |
| 222 | + AC_DEFINE_UNQUOTED(pgac_define_name) |
| 223 | + $2 |
| 224 | +else |
| 225 | + ifelse([$3], [], :, [$3]) |
| 226 | +fi |
| 227 | +undefine([pgac_define_name])[]dnl |
| 228 | +undefine([pgac_cache_name])[]dnl |
| 229 | +]) |
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