Moved libtool-specific flags to Makefile

configure.ac

@@ -3415,7 +3415,7 @@ AC_SUBST([AM_UBSAN_OPTIONS])
 AC_SUBST([AM_LSAN_OPTIONS])
 AC_SUBST([AM_TESTS_ENVIRONMENT])
 
-MHD_LIB_LDFLAGS="$MHD_LIB_LDFLAGS -export-dynamic -no-undefined"
+MHD_LIB_LDFLAGS="$MHD_LIB_LDFLAGS"
 
 AC_SUBST([CPU_COUNT])
 AC_SUBST([HEAVY_TESTS_NOTPARALLEL])

src/microhttpd/Makefile.am

@@ -111,6 +111,7 @@ libmicrohttpd_la_CFLAGS = \
 libmicrohttpd_la_LDFLAGS = \
   $(MHD_LIB_LDFLAGS) $(MHD_TLS_LIB_LDFLAGS) \
   $(W32_MHD_LIB_LDFLAGS) \
+  -export-dynamic -no-undefined \
   -version-info @LIB_VERSION_CURRENT@:@LIB_VERSION_REVISION@:@LIB_VERSION_AGE@
 libmicrohttpd_la_LIBADD = \
   $(MHD_LIBDEPS) $(MHD_TLS_LIBDEPS)