configure: Fix quoting of the "#" symbol

[[]] means "use literally, without expansion and substitution".
# symbol potentially could be interpreted as a comment.
Also fixed one check with indented " #include <security/pam_appl.h>"
which is not correct C syntax.

Signed-off-by: Evgeny Grin (Karlson2k) <k2k@drgrin.dev>

diff --git a/configure.ac b/configure.ac
index d0c1fd437bf308b89cf8ce0fdafb9c994565acc9..db7957628bab057108a48ab6f9f28223cfc52989 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -297,8 +297,8 @@ if test "$enable_subids" != "no"; then
        dnl
        dnl FIXME: check if 32 bit UIDs/GIDs are supported by libc
        dnl
-       AC_CHECK_SIZEOF([uid_t],[], [#include "sys/types.h"])
-       AC_CHECK_SIZEOF([gid_t],[], [#include "sys/types.h"])
+       AC_CHECK_SIZEOF([uid_t],[], [[#include "sys/types.h"]])
+       AC_CHECK_SIZEOF([gid_t],[], [[#include "sys/types.h"]])
 
        if test "$ac_cv_sizeof_uid_t" -ge 4 && test "$ac_cv_sizeof_gid_t" -ge 4; then
                AC_DEFINE([ENABLE_SUBIDS], [1], [Define to support the subordinate IDs.])
@@ -315,7 +315,7 @@ AM_CONDITIONAL([ENABLE_SUBIDS], [test "x$enable_subids" != "xno"])
 if test "$enable_lastlog" = "yes" && test "$ac_cv_header_lastlog_h" = "yes"; then
        AC_CACHE_CHECK([for ll_host in struct lastlog],
                [ac_cv_struct_lastlog_ll_host],
-               [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <lastlog.h>],
+               [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <lastlog.h>]],
                                        [struct lastlog ll; char *cp = ll.ll_host;])],
                        [ac_cv_struct_lastlog_ll_host=yes],
                        [ac_cv_struct_lastlog_ll_host=no])
@@ -428,10 +428,10 @@ if test "$with_audit" != "no"; then
        if test "$audit_header$with_audit" = "noyes" ; then
                AC_MSG_ERROR([libaudit.h is missing])
        elif test "$audit_header" = "yes"; then
-               AC_CHECK_DECL([AUDIT_ADD_USER],[],[audit_header="no"],[#include <libaudit.h>])
-               AC_CHECK_DECL([AUDIT_DEL_USER],[],[audit_header="no"],[#include <libaudit.h>])
-               AC_CHECK_DECL([AUDIT_ADD_GROUP],[],[audit_header="no"],[#include <libaudit.h>])
-               AC_CHECK_DECL([AUDIT_DEL_GROUP],[],[audit_header="no"],[#include <libaudit.h>])
+               AC_CHECK_DECL([AUDIT_ADD_USER],[],[audit_header="no"],[[#include <libaudit.h>]])
+               AC_CHECK_DECL([AUDIT_DEL_USER],[],[audit_header="no"],[[#include <libaudit.h>]])
+               AC_CHECK_DECL([AUDIT_ADD_GROUP],[],[audit_header="no"],[[#include <libaudit.h>]])
+               AC_CHECK_DECL([AUDIT_DEL_GROUP],[],[audit_header="no"],[[#include <libaudit.h>]])
                if test "$audit_header$with_audit" = "noyes" ; then
                        AC_MSG_ERROR([AUDIT_ADD_USER AUDIT_DEL_USER AUDIT_ADD_GROUP or AUDIT_DEL_GROUP missing from libaudit.h])
                fi
@@ -552,7 +552,7 @@ if test "$with_libpam" != "no"; then
        pam_headers_found=no
        AC_CHECK_HEADERS( [security/openpam.h security/pam_misc.h],
                         [ pam_headers_found=yes ; break ], [],
-                        [ #include <security/pam_appl.h> ] )
+                        [[#include <security/pam_appl.h>]] )
        if test "$pam_headers_found$with_libpam" = "noyes" ; then
                        AC_MSG_ERROR([PAM headers not found])
        fi
@@ -571,7 +571,7 @@ if test "$with_libpam" = "yes"; then
                        PAM_DELETE_CRED,
                        PAM_NEW_AUTHTOK_REQD,
                        PAM_DATA_SILENT],
-                      [], [], [#include <security/pam_appl.h>])
+                      [], [], [[#include <security/pam_appl.h>]])
 
 
        save_libs=$LIBS