diff options
| author | Daiki Ueno <dueno@redhat.com> | 2018-05-31 11:02:51 +0200 |
|---|---|---|
| committer | Daiki Ueno <ueno@gnu.org> | 2018-06-08 08:36:35 +0200 |
| commit | d4a4039f97b2e1f67d09d7cd8c05fb2dd129b23c (patch) | |
| tree | d9665c34a040ba8e38a85253966edd8f0526ec15 | |
| parent | 3dd5810143e51dabdc58069e55b09a950349fa08 (diff) | |
build: Ease issetugid() check when cross-compiling
When cross-compiling, the configure check for issetugid() aborts,
because of the pessimistic default of AC_RUN_IFELSE. This patch
provides the non-pessimistic default to AC_RUN_IFELSE and wrap the
macro invocation with AC_CACHE_CHECK so that the user can override the
check by setting ac_cv_issetugid_openbsd=yes, as suggested in:
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Runtime.html#Runtime
| -rw-r--r-- | configure.ac | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/configure.ac b/configure.ac index e99a3c7..bd6ece0 100644 --- a/configure.ac +++ b/configure.ac @@ -115,15 +115,17 @@ if test "$os_unix" = "yes"; then # Check if issetugid() is available and has compatible behavior with OpenBSD AC_CHECK_FUNCS([issetugid], [ - AC_MSG_CHECKING([whether issetugid() can detect setuid/setgid]) - issetugid_openbsd=no - AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]], - [[return issetugid ();]])], - [chmod 02777 ./conftest$EXEEXT; ./conftest$EXEEXT || issetugid_openbsd=yes]) - if test "$issetugid_openbsd" = yes; then + AC_CACHE_CHECK([whether issetugid() can detect setuid/setgid], + [ac_cv_issetugid_openbsd], + [ac_cv_issetugid_openbsd=no + AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]], + [[return issetugid ();]])], + [chmod 02777 ./conftest$EXEEXT; ./conftest$EXEEXT || ac_cv_issetugid_openbsd=yes], + [ac_cv_issetugid_openbsd=no], + [ac_cv_issetugid_openbsd="guessing no"])]) + if test "$ac_cv_issetugid_openbsd" = yes; then AC_DEFINE([HAVE_ISSETUGID_OPENBSD], [1], [Whether issetugid() has compatible behavior with OpenBSD]) fi - AC_MSG_RESULT([$issetugid_openbsd]) ]) # Required functions |