36 lines
1.6 KiB
Diff
36 lines
1.6 KiB
Diff
build: Ease issetugid() check when cross-compiling
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When cross-compiling, the configure check for issetugid() aborts,
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because of the pessimistic default of AC_RUN_IFELSE. This patch
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provides the non-pessimistic default to AC_RUN_IFELSE and wrap the
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macro invocation with AC_CACHE_CHECK so that the user can override the
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check by setting ac_cv_issetugid_openbsd=yes, as suggested in:
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https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Runtime.html#Runtime
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--- configure.ac 2018-05-30 16:10:47.000000000 +0200
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+++ configure.ac 2018-05-31 15:43:06.099988369 +0200
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@@ -115,15 +115,17 @@
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# Check if issetugid() is available and has compatible behavior with OpenBSD
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AC_CHECK_FUNCS([issetugid], [
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- AC_MSG_CHECKING([whether issetugid() can detect setuid/setgid])
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- issetugid_openbsd=no
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- AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]],
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- [[return issetugid ();]])],
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- [chmod 02777 ./conftest$EXEEXT; ./conftest$EXEEXT || issetugid_openbsd=yes])
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- if test "$issetugid_openbsd" = yes; then
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+ AC_CACHE_CHECK([whether issetugid() can detect setuid/setgid],
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+ [ac_cv_issetugid_openbsd],
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+ [ac_cv_issetugid_openbsd=no
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+ AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>]],
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+ [[return issetugid ();]])],
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+ [chmod 02777 ./conftest$EXEEXT; ./conftest$EXEEXT || ac_cv_issetugid_openbsd=yes],
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+ [ac_cv_issetugid_openbsd=no],
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+ [ac_cv_issetugid_openbsd="guessing no"])])
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+ if test "$ac_cv_issetugid_openbsd" = yes; then
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AC_DEFINE([HAVE_ISSETUGID_OPENBSD], [1], [Whether issetugid() has compatible behavior with OpenBSD])
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fi
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- AC_MSG_RESULT([$issetugid_openbsd])
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])
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# Required functions
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