diff -ruN recode-3.7.6/build-aux/ltmain.sh patched/build-aux/ltmain.sh
--- recode-3.7.6/build-aux/ltmain.sh	2016-02-08 00:39:37.000000000 +0100
+++ patched/build-aux/ltmain.sh	2019-10-03 12:41:04.095081265 +0200
@@ -7766,6 +7766,12 @@
 	    deplibs="$deplib $deplibs"
 	    continue
 	  fi
+          case $deplib in
+          *.dll.a)
+	    deplibs="$deplib $deplibs"
+	    continue
+          ;;
+          esac
 	  case $linkmode in
 	  lib)
 	    # Linking convenience modules into shared libraries is allowed,
diff -ruN recode-3.7.6/configure patched/configure
--- recode-3.7.6/configure	2019-09-13 14:25:04.000000000 +0200
+++ patched/configure	2019-10-03 12:41:04.101747962 +0200
@@ -7736,7 +7736,8 @@
   # Base MSYS/MinGW do not provide the 'file' command needed by
   # func_win32_libid shell function, so use a weaker test based on 'objdump',
   # unless we find 'file', for example because we are cross-compiling.
-  if ( file / ) >/dev/null 2>&1; then
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
     lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
     lt_cv_file_magic_cmd='func_win32_libid'
   else
diff -ruN recode-3.7.6/configure.ac patched/configure.ac
--- recode-3.7.6/configure.ac	2019-09-13 14:23:45.000000000 +0200
+++ patched/configure.ac	2019-10-03 12:41:04.101747962 +0200
@@ -111,6 +111,14 @@
 AM_GNU_GETTEXT(external)
 AM_XGETTEXT_OPTION([--from-code=UTF-8])
 
+LIBRECODE_LDFLAGS=""
+case "$host_os" in mingw*)
+    # we may assume that the backend is gnu-ld but DLLs need full resolution
+    LIBRECODE_LDFLAGS="-no-undefined ${wl}-no-undefined ${wl}-export-all-symbols"
+;; esac
+AC_MSG_RESULT([$LIBRECODE_LDFLAGS])
+AC_SUBST([LIBRECODE_LDFLAGS])
+
 AC_CONFIG_FILES([Makefile contrib/Makefile doc/Makefile lib/Makefile
           po/Makefile.in src/Makefile tests/Makefile tests/setup.py])
 AC_OUTPUT

diff -ruN recode-3.7.6/m4/libtool.m4 patched/m4/libtool.m4
--- recode-3.7.6/m4/libtool.m4	2016-02-08 00:39:37.000000000 +0100
+++ patched/m4/libtool.m4	2019-10-03 12:41:04.105081310 +0200
@@ -3480,7 +3480,8 @@
   # Base MSYS/MinGW do not provide the 'file' command needed by
   # func_win32_libid shell function, so use a weaker test based on 'objdump',
   # unless we find 'file', for example because we are cross-compiling.
-  if ( file / ) >/dev/null 2>&1; then
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
     lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
     lt_cv_file_magic_cmd='func_win32_libid'
   else
diff -ruN recode-3.7.10/src/Makefile.am patched/src/Makefile.am
--- recode-3.7.10/src/Makefile.am	2022-01-20 00:25:59.000000000 +0100
+++ patched/src/Makefile.am	2022-01-22 00:51:19.676666666 +0100
@@ -54,7 +54,7 @@
 librecode_la_SOURCES = charname.c combine.c fr-charname.c iconv.c \
 names.c outer.c recode.c request.c strip-pool.c task.c $(ALL_STEPS) \
 $(include_HEADERS) $(noinst_HEADERS) $(H_STEPS)
-librecode_la_LDFLAGS = -version-info $(VERSION_INFO) $(LTLIBINTL) \
+librecode_la_LDFLAGS = @LIBRECODE_LDFLAGS@ -version-info $(VERSION_INFO) $(LTLIBINTL) \
 	$(LIB_CLOCK_GETTIME) $(LIB_GETRANDOM) $(LIB_HARD_LOCALE) $(LIB_MBRTOWC) $(LIB_SETLOCALE_NULL)
 librecode_la_LIBADD = ../lib/libgnu.la libmerged.la