From e79e463556d6a08432a7008d185c958907fa4f40 Mon Sep 17 00:00:00 2001
From: Andrew Clayton <a.clayton@nginx.com>
Date: Wed, 6 Mar 2024 21:06:34 +0000
Subject: Remove support for IBM's XL C compiler

We really only support building Unit with GCC and Clang.

Cc: Dan Callahan <d.callahan@f5.com>
Reviewed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
---
 auto/atomic  | 49 -------------------------------------------------
 auto/cc/test | 24 ------------------------
 2 files changed, 73 deletions(-)

(limited to 'auto')

diff --git a/auto/atomic b/auto/atomic
index f99adf7e..7acd4667 100644
--- a/auto/atomic
+++ b/auto/atomic
@@ -65,55 +65,6 @@ if [ $nxt_found = no ]; then
 fi
 
 
-# AIX xlC builtin atomic operations.
-
-if [ $nxt_found = no ]; then
-
-    if [ $NXT_64BIT = 1 ]; then
-        nxt_feature_test="int main(void) {
-                              long  n = 0;
-                              long  o = 0;
-
-                              if (!__compare_and_swaplp(&n, &o, 3))
-                                  return 1;
-                              if (__fetch_and_addlp(&n, 1) != 3)
-                                  return 1;
-                              if (__fetch_and_swaplp(&n, 5) != 4)
-                                  return 1;
-                              if (n != 5)
-                                  return 1;
-                              __isync();
-                              __lwsync();
-                              return 0;
-                          }"
-    else
-        nxt_feature_test="int main(void) {
-                              int  n = 0;
-                              int  o = 0;
-
-                              if (!__compare_and_swap(&n, &o, 3))
-                                  return 1;
-                              if (__fetch_and_add(&n, 1) != 3)
-                                  return 1;
-                              if (__fetch_and_swap(&n, 5) != 4)
-                                  return 1;
-                              if (n != 5)
-                                  return 1;
-                              __isync();
-                              __lwsync();
-                              return 0;
-                          }"
-    fi
-
-    nxt_feature="xlC builtin atomic operations"
-    nxt_feature_name=NXT_HAVE_XLC_ATOMIC
-    nxt_feature_run=yes
-    nxt_feature_incs=
-    nxt_feature_libs=
-    . auto/feature
-fi
-
-
 if [ $nxt_found = no ]; then
     $echo
     $echo $0: error: no atomic operations found.
diff --git a/auto/cc/test b/auto/cc/test
index b1745505..499a2fb1 100644
--- a/auto/cc/test
+++ b/auto/cc/test
@@ -53,20 +53,10 @@ then
     NXT_CC_VERSION=`/bin/sh -c "($CC -V)" 2>&1 | grep "Sun C" 2>&1`
     $echo " + $NXT_CC_VERSION"
 
-else
-if `/bin/sh -c "($CC -qversion)" 2>&1 \
-                | grep "^IBM XL" >> $NXT_AUTOCONF_ERR 2>&1`
-then
-    NXT_CC_NAME=xlC
-    $echo " + using AIX xlC compiler"
-    NXT_CC_VERSION=`/bin/sh -c "($CC -qversion)" 2>&1 | grep "IBM XL" 2>&1`
-    $echo " + $NXT_CC_VERSION"
-
 else
     NXT_CC_NAME=cc
     NXT_CC_VERSION=cc
 
-fi # xlC
 fi # SunC
 fi # Apple LLVM clang
 fi # clang
@@ -163,20 +153,6 @@ case $NXT_CC_NAME in
         NXT_CFLAGS="$NXT_CFLAGS -g"
     ;;
 
-    xlC)
-        nxt_have=NXT_XLC . auto/have
-
-        #NXT_CFLAGS="$NXT_CFLAGS -qalloca"
-        # alloca support.
-        NXT_CFLAGS="$NXT_CFLAGS -qlanglvl=extc99"
-        # __thread support.
-        NXT_CFLAGS="$NXT_CFLAGS -qtls"
-        # Suppress warning
-        #    1506-159 (E) Bit field type specified for XXX is not valid.
-        #    Type unsigned assumed.
-        NXT_CFLAGS="$NXT_CFLAGS -qsuppress=1506-159"
-    ;;
-
     *)
     ;;
 
-- 
cgit