From 6b320186db7df1e58fdd2c836af54c86cc596981 Mon Sep 17 00:00:00 2001
From: Jussi Kukkonen <jussi.kukkonen@intel.com>
Date: Sat, 24 Feb 2018 15:09:10 +0100
Subject: [PATCH] [PATCH 1/4] Remove redundant compiler sanity checks

AC_PROG_CC already performs sanity checks. And unlike the removed
checks, it does so in a way that supports cross compilation.

Modified from patch by Maarten ter Huurne.

Upstream-Status: Submitted [http://savannah.gnu.org/bugs/?43223]

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
---
 configure.ac | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/src/configure.ac b/src/configure.ac
index d1bc42c..a8208ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,31 +48,6 @@ AC_PROG_GCC_TRADITIONAL
 AC_ISC_POSIX
 AC_USE_SYSTEM_EXTENSIONS
 
-AC_TRY_RUN(main(){exit(0);},,[
-if test $CC != cc ; then
-AC_NOTE(Your $CC failed - restarting with CC=cc)
-AC_NOTE()
-CC=cc
-export CC
-exec $0 $configure_args
-fi
-])
-
-AC_TRY_RUN(main(){exit(0);},,
-exec 5>&2
-eval $ac_link
-AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;)
-AC_NOTE($ac_compile)
-AC_MSG_ERROR(Can't run the compiler - sorry))
-
-AC_TRY_RUN([
-main()
-{
-  int __something_strange_();
-  __something_strange_(0);
-}
-],AC_MSG_ERROR(Your compiler does not set the exit status - sorry))
-
 AC_PROG_AWK
 
 AC_PROG_INSTALL
@@ -1278,8 +1253,6 @@ fi
 dnl Ptx bug workaround -- insert -lc after -ltermcap
 test -n "$seqptx" && LIBS="-ltermcap -lc -lsocket -linet -lnsl -lsec -lseq"
 
-AC_TRY_RUN(main(){exit(0);},,AC_MSG_ERROR(Can't run the compiler - internal error. Sorry.))
-
 ETCSCREENRC=
 AC_MSG_CHECKING(for the global screenrc file)
 AC_ARG_WITH(sys-screenrc, [  --with-sys-screenrc=path to the global screenrc file], [ ETCSCREENRC="${withval}" ])
-- 
2.17.1