testing, reported upstream with patch: use sysconf() for SIGSTKSZ

vim-sigaltstack.patch

@@ -0,0 +1,81 @@
+diff --git a/src/config.h.in b/src/config.h.in
+index 1b01633..9657556 100644
+--- a/src/config.h.in
++++ b/src/config.h.in
+@@ -497,6 +497,9 @@
+ /* Define to inline symbol or empty */
+ #undef inline
+ 
++/* Define if _SC_SIGSTKSZ is available via sysconf() */
++#undef HAVE_SYSCONF_SIGSTKSZ
++
+ /* Do we need FIPS warning? */
+ #undef HAVE_FIPS_WARNING
+ 
+diff --git a/src/configure.ac b/src/configure.ac
+index aba4e1b..8a14a55 100644
+--- a/src/configure.ac
++++ b/src/configure.ac
+@@ -4137,6 +4137,15 @@ AC_TRY_COMPILE(
+ 	AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCONF),
+ 	AC_MSG_RESULT(not usable))
+ 
++dnl check if we have _SC_SIGSTKSZ via sysconf()
++AC_MSG_CHECKING(for _SC_SIGSTKSZ via sysconf())
++AC_TRY_COMPILE(
++[#include <unistd.h>],
++[	(void)sysconf(_SC_SIGSTKSZ);
++	],
++	AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCONF_SIGSTKSZ),
++	AC_MSG_RESULT(not usable))
++
+ AC_CHECK_SIZEOF([int])
+ AC_CHECK_SIZEOF([long])
+ AC_CHECK_SIZEOF([time_t])
+diff --git a/src/os_unix.c b/src/os_unix.c
+index 1edc7e6..fe12aba 100644
+--- a/src/os_unix.c
++++ b/src/os_unix.c
+@@ -783,7 +783,7 @@ mch_stackcheck(char *p)
+  * completely full.
+  */
+ 
+-#ifndef SIGSTKSZ
++#if !defined SIGSTKSZ && !defined(HAVE_SYSCONF_SIGSTKSZ)
+ # define SIGSTKSZ 8000    // just a guess of how much stack is needed...
+ #endif
+ 
+@@ -806,13 +806,21 @@ init_signal_stack(void)
+ #  else
+ 	sigstk.ss_sp = signal_stack;
+ #  endif
++#  ifdef HAVE_SYSCONF_SIGSTKSZ
++	sigstk.ss_size = sysconf(_SC_SIGSTKSZ);
++#  else
+ 	sigstk.ss_size = SIGSTKSZ;
++#  endif
+ 	sigstk.ss_flags = 0;
+ 	(void)sigaltstack(&sigstk, NULL);
+ # else
+ 	sigstk.ss_sp = signal_stack;
+ 	if (stack_grows_downwards)
++#  ifdef HAVE_SYSCONF_SIGSTKSZ
++	    sigstk.ss_sp += sysconf(_SC_SIGSTKSZ) - 1;
++#  else
+ 	    sigstk.ss_sp += SIGSTKSZ - 1;
++#  endif
+ 	sigstk.ss_onstack = 0;
+ 	(void)sigstack(&sigstk, NULL);
+ # endif
+@@ -3261,7 +3269,11 @@ mch_early_init(void)
+      * Ignore any errors.
+      */
+ #if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK)
++# ifdef HAVE_SYSCONF_SIGSTKSZ
++    signal_stack = alloc(sysconf(_SC_SIGSTKSZ));
++# else
+     signal_stack = alloc(SIGSTKSZ);
++# endif
+     init_signal_stack();
+ #endif
+ }

vim.spec

@@ -21,7 +21,7 @@ Summary: The VIM editor
 URL:     http://www.vim.org/
 Name: vim
 Version: %{baseversion}.%{patchlevel}
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: Vim and MIT
 Source0: ftp://ftp.vim.org/pub/vim/unix/vim-%{baseversion}-%{patchlevel}.tar.bz2
 Source1: virc
@@ -64,6 +64,7 @@ Patch3016: vim-8.0-copy-paste.patch
 Patch3017: vim-python3-tests.patch
 # fips warning
 Patch3018: vim-crypto-warning.patch
+Patch3019: vim-sigaltstack.patch
 
 # gcc is no longer in buildroot by default
 BuildRequires: gcc
@@ -270,6 +271,7 @@ perl -pi -e "s,bin/nawk,bin/awk,g" runtime/tools/mve.awk
 %patch3016 -p1 -b .copypaste
 %patch3017 -p1 -b .python-tests
 %patch3018 -p1
+%patch3019 -p1 -b .sigaltstack
 
 %build
 cd src
@@ -820,6 +822,9 @@ touch %{buildroot}/%{_datadir}/%{name}/vimfiles/doc/tags
 %config(noreplace) %{_sysconfdir}/profile.d/vim-default-editor.*
 
 %changelog
+* Wed Feb 24 2021 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.2.2541-2
+- rebuilt
+
 * Mon Feb 22 2021 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.2.2541-1
 - patchlevel 2541
 - 1931099 - Build version numbers don't match the actual build patchlevel