diff --git a/system/base/bc/pspec.xml b/system/base/bc/pspec.xml
index 44c51338..ef56c63e 100644
--- a/system/base/bc/pspec.xml
+++ b/system/base/bc/pspec.xml
@@ -43,7 +43,7 @@
 
     <History>
         <Update release="5">
-            <Date>2018-07-19</Date>
+            <Date>2018-07-30</Date>
             <Version>1.07.1</Version>
             <Comment>Rebuild</Comment>
             <Name>Ertuğrul Erata</Name>
diff --git a/system/devel/flex/actions.py b/system/devel/flex/actions.py
index 963e6df9..e540f7e9 100644
--- a/system/devel/flex/actions.py
+++ b/system/devel/flex/actions.py
@@ -10,6 +10,7 @@ from pisi.actionsapi import shelltools
 from pisi.actionsapi import get
 
 def setup():
+    shelltools.system("sed -i '/math.h/a #include <malloc.h>' src/flexdef.h")
     pisitools.flags.add("-fPIC")
     shelltools.export("AUTOPOINT", "true")
 
diff --git a/system/devel/flex/pspec.xml b/system/devel/flex/pspec.xml
index 15b884df..610f3ed6 100644
--- a/system/devel/flex/pspec.xml
+++ b/system/devel/flex/pspec.xml
@@ -16,6 +16,7 @@
         <BuildDependencies>
             <Dependency>patch</Dependency>
             <Dependency>texinfo</Dependency>
+            <Dependency>help2man</Dependency>
         </BuildDependencies>
         <Patches>
 <!--             <Patch level="1">flex-2.5.37-notex.patch</Patch> -->
@@ -37,9 +38,9 @@
 
     <History>
         <Update release="7">
-            <Date>2018-07-17</Date>
+            <Date>2018-07-30</Date>
             <Version>2.6.4</Version>
-            <Comment>Rebuild</Comment>
+            <Comment>Rebuild.</Comment>
             <Name>Ertuğrul Erata</Name>
             <Email>ertugrulerata@gmail.com</Email>
         </Update>
diff --git a/system/devel/libarchive/pspec.xml b/system/devel/libarchive/pspec.xml
index f79e071d..ad079386 100644
--- a/system/devel/libarchive/pspec.xml
+++ b/system/devel/libarchive/pspec.xml
@@ -61,9 +61,9 @@
 
     <History>
         <Update release="5">
-            <Date>2018-07-15</Date>
+            <Date>2018-07-29</Date>
             <Version>3.3.2</Version>
-            <Comment>Rebuild</Comment>
+            <Comment>Rebuild.</Comment>
             <Name>Ertuğrul Erata</Name>
             <Email>ertugrulerata@gmail.com</Email>
         </Update>
diff --git a/system/devel/m4/pspec.xml b/system/devel/m4/pspec.xml
index 5cefa558..94345148 100644
--- a/system/devel/m4/pspec.xml
+++ b/system/devel/m4/pspec.xml
@@ -34,7 +34,7 @@
 
     <History>
         <Update release="4">
-            <Date>2018-07-15</Date>
+            <Date>2018-07-30</Date>
             <Version>1.4.18</Version>
             <Comment>Rebuild.</Comment>
             <Name>Ertuğrul Erata</Name>