diff --git a/autotools/bison/bison.py b/autotools/bison/bison.py
index 47f9b4e4..6a452eb7 100644
--- a/autotools/bison/bison.py
+++ b/autotools/bison/bison.py
@@ -1,28 +1,29 @@
 # -*- coding: utf-8 -*-
 import info
 from Package.AutoToolsPackageBase import *
 
 
 class subinfo(info.infoclass):
     def setDependencies(self):
         self.buildDependencies["dev-util/msys"] = "default"
         self.runtimeDependencies["virtual/base"] = "default"
 
     def setTargets(self):
         self.description = "Bison is a general-purpose parser generator that converts an annotated context-free grammar into a deterministic LR or generalized LR (GLR) parser employing LALR(1) parser tables"
         self.svnTargets['master'] = 'git://git.savannah.gnu.org/bison.git'
         for ver in ["3.0.4"]:
             self.targets[ver] = f"http://ftp.gnu.org/gnu/bison/bison-{ver}.tar.xz"
             self.targetInstSrc[ver] = f"bison-{ver}"
         self.defaultTarget = '3.0.4'
         self.patchToApply["3.0.4"] = [("vasnprintf-macos.diff", 1)]
 
 
 class Package(AutoToolsPackageBase):
-    def __init__( self, **args ):
-        AutoToolsPackageBase.__init__( self )
+    def __init__(self, **args):
+        AutoToolsPackageBase.__init__(self)
+        self.subinfo.options.configure.args += " --disable-static --enable-shared"
 
-    def install( self ):
+    def install(self):
         if not AutoToolsPackageBase.install(self):
             return False
         return self.copyToMsvcImportLib()
diff --git a/autotools/flex/flex.py b/autotools/flex/flex.py
index 2fe12fad..eb226a6d 100644
--- a/autotools/flex/flex.py
+++ b/autotools/flex/flex.py
@@ -1,27 +1,28 @@
 # -*- coding: utf-8 -*-
 import info
 from Package.AutoToolsPackageBase import *
 
 
 class subinfo(info.infoclass):
     def setDependencies(self):
         self.buildDependencies["dev-util/msys"] = "default"
         self.runtimeDependencies["virtual/base"] = "default"
 
     def setTargets(self):
         self.description = "Flex is a tool for generating scanners: programs which recognize lexical patterns in text."
         self.svnTargets['master'] = 'https://github.com/westes/flex.git'
         for ver in ["2.6.4"]:
             self.targets[ver] = f"https://github.com/westes/flex/releases/download/v{ver}/flex-{ver}.tar.gz"
             self.targetInstSrc[ver] = f"flex-{ver}"
         self.defaultTarget = '2.6.4'
 
 
 class Package(AutoToolsPackageBase):
-    def __init__( self, **args ):
-        AutoToolsPackageBase.__init__( self )
+    def __init__(self, **args):
+        AutoToolsPackageBase.__init__(self)
+        self.subinfo.options.configure.args += " --disable-static --enable-shared"
 
-    def install( self ):
+    def install(self):
         if not AutoToolsPackageBase.install(self):
             return False
         return self.copyToMsvcImportLib()