diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 16b32344..9d9737da 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -9,4 +9,4 @@ community_bridge: # Replace with a single Community Bridge project-name e.g., cl
 liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
-custom: 'https://sobe.ru/na/libmdbx'
+custom: ['https://sobe.ru/na/libmdbx', 'https://paypal.me/erthink']
diff --git a/GNUmakefile b/GNUmakefile
index ec9ccf8b..a99dcbe0 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -26,6 +26,7 @@ mandir  ?= $(prefix)/man
 # lib/bin suffix for multiarch/biarch, e.g. '.x86_64'
 suffix  ?=
 
+INSTALL ?= install
 CC      ?= gcc
 CFLAGS_EXTRA ?=
 LD      ?= ld
@@ -60,7 +61,7 @@ LIBRARIES  := libmdbx.a libmdbx.$(SO_SUFFIX)
 TOOLS      := mdbx_stat mdbx_copy mdbx_dump mdbx_load mdbx_chk mdbx_drop
 MANPAGES   := mdbx_stat.1 mdbx_copy.1 mdbx_dump.1 mdbx_load.1 mdbx_chk.1 mdbx_drop.1
 
-.PHONY: mdbx all install clean
+.PHONY: mdbx all install install-strip install-no-strip clean
 
 all: $(LIBRARIES) $(TOOLS)
 
@@ -421,12 +422,19 @@ cross-qemu:
 	done
 
 #< dist-cutoff-end
+
 install: $(LIBRARIES) $(TOOLS) $(HEADERS)
-	install -D -p -s -t $(DESTDIR)$(prefix)/bin$(suffix) $(TOOLS) && \
-	install -D -p -s -t $(DESTDIR)$(prefix)/lib$(suffix) $(filter-out libmdbx.a,$(LIBRARIES)) && \
-	install -D -p -t $(DESTDIR)$(prefix)/lib$(suffix) libmdbx.a && \
-	install -D -p -m 444 -t $(DESTDIR)$(prefix)/include $(HEADERS) && \
-	install -D -p -m 444 -t $(DESTDIR)$(mandir)/man1 $(addprefix $(MAN_SRCDIR), $(MANPAGES))
+	$(INSTALL) -D -p $(EXE_INSTALL_FLAGS) -t $(DESTDIR)$(prefix)/bin$(suffix) $(TOOLS) && \
+	$(INSTALL) -D -p $(EXE_INSTALL_FLAGS) -t $(DESTDIR)$(prefix)/lib$(suffix) $(filter-out libmdbx.a,$(LIBRARIES)) && \
+	$(INSTALL) -D -p -t $(DESTDIR)$(prefix)/lib$(suffix) libmdbx.a && \
+	$(INSTALL) -D -p -m 444 -t $(DESTDIR)$(prefix)/include $(HEADERS) && \
+	$(INSTALL) -D -p -m 444 -t $(DESTDIR)$(mandir)/man1 $(addprefix $(MAN_SRCDIR), $(MANPAGES))
+
+install-strip: EXE_INSTALL_FLAGS = -s
+install-strip: install
+
+install-no-strip: EXE_INSTALL_FLAGS =
+install-no-strip: install
 
 uninstall:
 	rm -f $(addprefix $(DESTDIR)$(prefix)/bin$(suffix)/,$(TOOLS)) \
diff --git a/src/core.c b/src/core.c
index bf374fe8..c858605f 100644
--- a/src/core.c
+++ b/src/core.c
@@ -21071,28 +21071,18 @@ __cold int mdbx_env_set_option(MDBX_env *env, const MDBX_option_t option,
     if (env->me_txn)
       err = MDBX_EPERM /* unable change during transaction */;
     else {
-      mdbx_dpl_clear(env->me_txn0->tw.dirtylist);
-      const unsigned value32 = (unsigned)value;
+      const pgno_t value32 = (pgno_t)value;
       if (option == MDBX_opt_txn_dp_initial &&
           env->me_options.dp_initial != value32) {
+        env->me_options.dp_initial = value32;
         if (env->me_options.dp_limit < value32)
           env->me_options.dp_limit = value32;
-        if (env->me_txn0->tw.dirtylist->detent < value32 &&
-            !mdbx_dpl_reserve(env->me_txn0, value32))
-          err = MDBX_ENOMEM;
-        else
-          env->me_options.dp_initial = value32;
       }
       if (option == MDBX_opt_txn_dp_limit &&
           env->me_options.dp_limit != value32) {
-        if (env->me_txn0->tw.dirtylist->detent > value32 &&
-            !mdbx_dpl_reserve(env->me_txn0, value32))
-          err = MDBX_ENOMEM;
-        else {
-          if (env->me_options.dp_initial > value32)
-            env->me_options.dp_initial = value32;
-          env->me_options.dp_limit = value32;
-        }
+        env->me_options.dp_limit = value32;
+        if (env->me_options.dp_initial > value32)
+          env->me_options.dp_initial = value32;
       }
     }
     break;