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$NetBSD: patch-configure,v 1.2 2019/07/31 18:39:24 brook Exp $

Portability fix.

--- configure.orig	2019-07-15 02:31:39.000000000 +0000
+++ configure
@@ -2732,7 +2732,7 @@ fi
 $as_echo_n "checking for macOS... " >&6; }
 RSysinfoName=$("${R_HOME}/bin/Rscript" --vanilla -e 'cat(Sys.info()["sysname"])')
 
-if test x"${RSysinfoName}" == x"Darwin"; then
+if test x"${RSysinfoName}" = x"Darwin"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: found" >&5
 $as_echo "found" >&6; }
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for macOS Apple compiler" >&5
@@ -2740,7 +2740,7 @@ $as_echo_n "checking for macOS Apple com
 
     apple_compiler=$($CXX --version 2>&1 | grep -i -c -e 'apple llvm')
 
-    if test x"${apple_compiler}" == x"1"; then
+    if test x"${apple_compiler}" = x"1"; then
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: found" >&5
 $as_echo "found" >&6; }
         { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: OpenMP unavailable and turned off." >&5
@@ -2753,7 +2753,7 @@ $as_echo "not found" >&6; }
 $as_echo_n "checking for clang compiler... " >&6; }
         clang_compiler=$($CXX --version 2>&1 | grep -i -c -e 'clang ')
 
-        if test x"${clang_compiler}" == x"1"; then
+        if test x"${clang_compiler}" = x"1"; then
             { $as_echo "$as_me:${as_lineno-$LINENO}: result: found" >&5
 $as_echo "found" >&6; }
             { $as_echo "$as_me:${as_lineno-$LINENO}: checking for OpenMP compatible version of clang" >&5
@@ -2795,7 +2795,7 @@ hasRlapack=$(echo ${lapack} | grep lRlap
 ## while this may seem a little unusual we do it to fully reproduce the
 ## previous bash-based implementation
 
-if test x"${hasRlapack}" == x""; then
+if test x"${hasRlapack}" = x""; then
     ## We are using a full Lapack and can use zgbsv -- so #undef remains
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: system LAPACK found" >&5
 $as_echo "system LAPACK found" >&6; }
@@ -2815,13 +2815,13 @@ openmp_flag=""
 ## Set the fallback, by default it is nope
 arma_have_openmp="#define ARMA_DONT_USE_OPENMP 1"
 
-if test x"${can_use_openmp}" == x"yes"; then
+if test x"${can_use_openmp}" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for OpenMP" >&5
 $as_echo_n "checking for OpenMP... " >&6; }
     ## if R has -fopenmp we should be good
     allldflags=$(${R_HOME}/bin/R CMD config --ldflags)
     hasOpenMP=$(echo ${allldflags} | grep -- -fopenmp)
-    if test x"${hasOpenMP}" == x""; then
+    if test x"${hasOpenMP}" = x""; then
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: missing" >&5
 $as_echo "missing" >&6; }
         arma_have_openmp="#define ARMA_DONT_USE_OPENMP 1"