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r18127: Add macro AC_CHECK_DECL() for systems that don't have it.

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This commit is contained in:
Jelmer Vernooij 2006-09-06 02:07:44 +00:00 committed by Gerald (Jerry) Carter
parent ce31b736a9
commit 589a1c2509
1 changed files with 13 additions and 0 deletions
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13
source/lib/replace/libreplace.m4
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@ -1,3 +1,16 @@
dnl see if a declaration exists for a function or variable
dnl defines HAVE_function_DECL if it exists
dnl AC_HAVE_DECL(var, includes)
AC_DEFUN(AC_HAVE_DECL,
[
AC_CACHE_CHECK([for $1 declaration],ac_cv_have_$1_decl,[
AC_TRY_COMPILE([$2],[int i = (int)$1],
ac_cv_have_$1_decl=yes,ac_cv_have_$1_decl=no)])
if test x"$ac_cv_have_$1_decl" = x"yes"; then
AC_DEFINE([HAVE_]translit([$1], [a-z], [A-Z])[_DECL],1,[Whether $1() is available])
fi
])
dnl find the libreplace sources. This is meant to work both for
dnl libreplace standalone builds, and builds of packages using libreplace
libreplacedir=""