diff -ur php7-source.orig/build/php.m4 php7-source/build/php.m4
--- php7-source.orig/build/php.m4	2020-07-21 10:02:01.925072380 +0300
+++ php7-source/build/php.m4	2020-07-21 10:05:21.048991041 +0300
@@ -1523,18 +1523,18 @@
 dnl Wrapper for AC_CHECK_LIB.
 dnl
 AC_DEFUN([PHP_CHECK_LIBRARY], [
-  save_old_LDFLAGS=$LDFLAGS
+  save_old_LDLIBS=$LDLIBS
   ac_stuff="$5"
 
   save_ext_shared=$ext_shared
   ext_shared=yes
-  PHP_EVAL_LIBLINE([$]ac_stuff, LDFLAGS)
+  PHP_EVAL_LIBLINE([$]ac_stuff, LDLIBS)
   AC_CHECK_LIB([$1],[$2],[
-    LDFLAGS=$save_old_LDFLAGS
+    LDLIBS=$save_old_LDLIBS
     ext_shared=$save_ext_shared
     $3
   ],[
-    LDFLAGS=$save_old_LDFLAGS
+    LDLIBS=$save_old_LDLIBS
     ext_shared=$save_ext_shared
     unset ac_cv_lib_$1[]_$2
     $4
Только в php7-source/build: php.m4~