--- gmp-6.1.2/configure	2019-03-25 17:58:41.928471374 -0400
+++ gmp-6.1.2-LDFLAGS/configure	2019-03-25 18:34:22.498249934 -0400
@@ -5867,8 +5867,8 @@ fi
           instrument) cflags="$cflags -finstrument-functions" ;;
         esac
 
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags $cppflags" >&5
-$as_echo_n "checking compiler $cc $cflags $cppflags... " >&6; }
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags $cppflags $LDFLAGS" >&5
+$as_echo_n "checking compiler $cc $cflags $cppflags $LDFLAGS... " >&6; }
 gmp_prog_cc_works=yes
 
 # first see a simple "main()" works, then go on to other checks
@@ -5880,7 +5880,7 @@ if test "$gmp_prog_cc_works" = yes; then
 int main () { return 0; }
 EOF
   echo "Test compile: " >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -5934,7 +5934,7 @@ void *f() { return g(); }
 int main () { return 0; }
 EOF
   echo "Test compile: function pointer return" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -5990,7 +5990,7 @@ int cmov () { return (n >= 0 ? n : 0); }
 int main () { return 0; }
 EOF
   echo "Test compile: cmov instruction" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6047,7 +6047,7 @@ unsigned long gcc303 () { return (unsign
 int main () { return 0; }
 EOF
   echo "Test compile: double -> ulong conversion" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6102,7 +6102,7 @@ unsigned long fneg () { return -fneg_dat
 int main () { return 0; }
 EOF
   echo "Test compile: double negation" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6158,7 +6158,7 @@ float ftod () { return (float) ftod_data
 int main () { return 0; }
 EOF
   echo "Test compile: double -> float conversion" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6243,7 +6243,7 @@ param_init ()
 int main () { return 0; }
 EOF
   echo "Test compile: gnupro alpha ev6 char spilling" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6294,7 +6294,7 @@ if test "$gmp_prog_cc_works" = yes; then
 int k; int foo () { __builtin_alloca (k); }
 EOF
   echo "Test compile: __builtin_alloca availability" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6340,7 +6340,7 @@ int foo ()
 int main () { return 0; }
 EOF
   echo "Test compile: alloca array" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6418,7 +6418,7 @@ int f ()
 int main () { return 0; }
 EOF
   echo "Test compile: abs int -> double conversion" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6483,7 +6483,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: long long reliability test 1" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6544,7 +6544,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: long long reliability test 2" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6605,7 +6605,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: freebsd hacked gcc" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6704,7 +6704,7 @@ main ()
 
 EOF
   echo "Test compile: mpn_lshift_com optimization" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6813,7 +6813,7 @@ main ()
 
 EOF
   echo "Test compile: mpn_lshift_com optimization 2" >&5
-  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6872,7 +6872,7 @@ int foo;
 int bar () { return foo; }
 EOF
 tmp_got_emitted=no
-gmp_compile="$cc $cflags $cppflags -fPIC -S conftest.c >&5 2>&1"
+gmp_compile="$cc $cflags $cppflags $LDFLAGS -fPIC -S conftest.c >&5 2>&1"
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -6946,7 +6946,7 @@ cat >conftest.s <<\EOF
 	.byte	254, 220, 186, 152, 118, 84, 50, 16
 EOF
 tmp_got_good=yes
-gmp_compile="$cc $cflags $cppflags -fPIC -o conftest.o -c conftest.s >&5 2>&1"
+gmp_compile="$cc $cflags $cppflags $LDFLAGS -fPIC -o conftest.o -c conftest.s >&5 2>&1"
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7325,7 +7325,7 @@ _main:
 	xorl	%eax, %eax
 	ret
 EOF
-  gmp_compile="$cc $cflags $cppflags conftest.s -o conftest >&5"
+  gmp_compile="$cc $cflags $cppflags $LDFLAGS conftest.s -o conftest >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7384,13 +7384,13 @@ esac
           -no-cpp-precomp)
             # special check, avoiding a warning
             if test "$ccbase" = gcc; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags -no-cpp-precomp" >&5
-$as_echo_n "checking compiler $cc $cflags -no-cpp-precomp... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags $LDFLAGS -no-cpp-precomp" >&5
+$as_echo_n "checking compiler $cc $cflags $LDFLAGS -no-cpp-precomp... " >&6; }
   result=no
   cat >conftest.c <<EOF
 int main () { return 0; }
 EOF
-  gmp_compile="$cc $cflags -no-cpp-precomp conftest.c >conftest.out 2>&1"
+  gmp_compile="$cc $cflags $LDFLAGS -no-cpp-precomp conftest.c >conftest.out 2>&1"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7485,8 +7485,8 @@ fi
             ;;
         esac
 
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags $cppflags $flag" >&5
-$as_echo_n "checking compiler $cc $cflags $cppflags $flag... " >&6; }
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler $cc $cflags $cppflags $flag $LDFLAGS" >&5
+$as_echo_n "checking compiler $cc $cflags $cppflags $flag $LDFLAGS... " >&6; }
 gmp_prog_cc_works=yes
 
 # first see a simple "main()" works, then go on to other checks
@@ -7498,7 +7498,7 @@ if test "$gmp_prog_cc_works" = yes; then
 int main () { return 0; }
 EOF
   echo "Test compile: " >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7552,7 +7552,7 @@ void *f() { return g(); }
 int main () { return 0; }
 EOF
   echo "Test compile: function pointer return" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7608,7 +7608,7 @@ int cmov () { return (n >= 0 ? n : 0); }
 int main () { return 0; }
 EOF
   echo "Test compile: cmov instruction" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7665,7 +7665,7 @@ unsigned long gcc303 () { return (unsign
 int main () { return 0; }
 EOF
   echo "Test compile: double -> ulong conversion" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7720,7 +7720,7 @@ unsigned long fneg () { return -fneg_dat
 int main () { return 0; }
 EOF
   echo "Test compile: double negation" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7776,7 +7776,7 @@ float ftod () { return (float) ftod_data
 int main () { return 0; }
 EOF
   echo "Test compile: double -> float conversion" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7861,7 +7861,7 @@ param_init ()
 int main () { return 0; }
 EOF
   echo "Test compile: gnupro alpha ev6 char spilling" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7912,7 +7912,7 @@ if test "$gmp_prog_cc_works" = yes; then
 int k; int foo () { __builtin_alloca (k); }
 EOF
   echo "Test compile: __builtin_alloca availability" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -7958,7 +7958,7 @@ int foo ()
 int main () { return 0; }
 EOF
   echo "Test compile: alloca array" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8036,7 +8036,7 @@ int f ()
 int main () { return 0; }
 EOF
   echo "Test compile: abs int -> double conversion" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8101,7 +8101,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: long long reliability test 1" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8162,7 +8162,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: long long reliability test 2" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8223,7 +8223,7 @@ int dummy;
 int main () { return 0; }
 EOF
   echo "Test compile: freebsd hacked gcc" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8322,7 +8322,7 @@ main ()
 
 EOF
   echo "Test compile: mpn_lshift_com optimization" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8431,7 +8431,7 @@ main ()
 
 EOF
   echo "Test compile: mpn_lshift_com optimization 2" >&5
-  gmp_compile="$cc $cflags $cppflags $flag conftest.c >&5"
+  gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS conftest.c >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8490,7 +8490,7 @@ int foo;
 int bar () { return foo; }
 EOF
 tmp_got_emitted=no
-gmp_compile="$cc $cflags $cppflags $flag -fPIC -S conftest.c >&5 2>&1"
+gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS -fPIC -S conftest.c >&5 2>&1"
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -8564,7 +8564,7 @@ cat >conftest.s <<\EOF
 	.byte	254, 220, 186, 152, 118, 84, 50, 16
 EOF
 tmp_got_good=yes
-gmp_compile="$cc $cflags $cppflags $flag -fPIC -o conftest.o -c conftest.s >&5 2>&1"
+gmp_compile="$cc $cflags $cppflags $flag $LDFLAGS -fPIC -o conftest.o -c conftest.s >&5 2>&1"
 if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
   (eval $gmp_compile) 2>&5
   ac_status=$?
@@ -10530,8 +10530,8 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
   #
   for cxxflags_choice in $cxxflags_list; do
     eval CXXFLAGS=\"\$cxxflags_$cxxflags_choice\"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking C++ compiler $CXX $CPPFLAGS $CXXFLAGS" >&5
-$as_echo_n "checking C++ compiler $CXX $CPPFLAGS $CXXFLAGS... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking C++ compiler $CXX $CPPFLAGS $CXXFLAGS $LDFLAGS" >&5
+$as_echo_n "checking C++ compiler $CXX $CPPFLAGS $CXXFLAGS $LDFLAGS... " >&6; }
 gmp_prog_cxx_works=yes
 
 # start with a plain "main()", then go on to further checks
@@ -10543,7 +10543,7 @@ if test "$gmp_prog_cxx_works" = yes; the
 int main (void) { return 0; }
 EOF
   echo "Test compile: " >&5
-  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS conftest.cc >&5"
+  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS $LDFLAGS conftest.cc >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_cxxcompile\""; } >&5
   (eval $gmp_cxxcompile) 2>&5
   ac_status=$?
@@ -10583,7 +10583,7 @@ using namespace foo;
 int main (void) { return 0; }
 EOF
   echo "Test compile: namespace" >&5
-  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS conftest.cc >&5"
+  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS $LDFLAGS conftest.cc >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_cxxcompile\""; } >&5
   (eval $gmp_cxxcompile) 2>&5
   ac_status=$?
@@ -10629,7 +10629,7 @@ void someoutput (void) { std::cout << 12
 int main (void) { return 0; }
 EOF
   echo "Test compile: std iostream" >&5
-  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS conftest.cc >&5"
+  gmp_cxxcompile="$CXX $CPPFLAGS $CXXFLAGS $LDFLAGS conftest.cc >&5"
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_cxxcompile\""; } >&5
   (eval $gmp_cxxcompile) 2>&5
   ac_status=$?