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authorArthur de Jong <arthur@arthurdejong.org>2013-11-25 18:27:36 +0100
committerArthur de Jong <arthur@arthurdejong.org>2013-11-25 18:27:36 +0100
commit23a41ce888caaea871bf3c20c83136e3f6002f2a (patch)
tree4dc034b08ddbd8acc2a08fc79a06d55f0471ef7d /configure.ac
parent81bfb8bac4b32f27a187f92dde6c8f83c738d83d (diff)
Add a test for pam_get_item() argument type
This checks whether pam_get_item() takes a const void ** or void ** item value argument and defines a PAM_ITEM_CONST macro that is const when it should. This avoids some compiler warnings.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac32
1 files changed, 32 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index a8ee67c..a638f77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -603,6 +603,38 @@ then
AC_SUBST(pam_ldap_so_LDFLAGS)
AC_SUBST(pam_ldap_so_LINK)
+ # check argument type of pam_get_item()
+ AC_CACHE_CHECK(
+ [argument type of pam_get_item],
+ nss_pam_ldapd_cv_pam_get_item_arg3_type,
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #ifdef HAVE_SECURITY_PAM_APPL_H
+ #include <security/pam_appl.h>
+ #endif
+ #ifndef HAVE_PAM_PAM_MODULES_H
+ #include <security/pam_modules.h>
+ #ifdef HAVE_SECURITY_PAM_EXT_H
+ #include <security/pam_ext.h>
+ #endif
+ #else
+ #include <pam/pam_modules.h>
+ #endif
+ #ifdef HAVE_SECURITY_PAM_MODUTIL_H
+ #include <security/pam_modutil.h>
+ #endif
+ extern int pam_get_item(const pam_handle_t *pamh, int item_type, const void **item);
+ ]], [])],
+ [nss_pam_ldapd_cv_pam_get_item_arg3_type="const void **"],
+ [nss_pam_ldapd_cv_pam_get_item_arg3_type="void **"]) ])
+ PAM_ITEM_CONST=""
+ if test "$nss_pam_ldapd_cv_pam_get_item_arg3_type" = "const void **"
+ then
+ PAM_ITEM_CONST="const"
+ fi
+ AC_DEFINE_UNQUOTED(PAM_ITEM_CONST, [$PAM_ITEM_CONST],
+ [Define to empty if pam_get_item() doesn't take `const` parameter.])
+
# restore CFLAGS and LIBS
CFLAGS="$pam_save_CFLAGS"
LIBS="$pam_save_LIBS"