Shrink autogen by reading VERSION file directly in configure.ac

.gitignore

@@ -2,7 +2,6 @@
 *.a
 *.gz
 configure
-configure.ac
 config.*
 /Makefile
 tools/Makefile

autogen.sh

@@ -1,11 +1,5 @@
 #!/usr/bin/env bash
 
-N2N_VERSION_SHORT=$(cat VERSION)
-
-cat configure.seed | sed \
-    -e "s/@N2N_VERSION_SHORT@/$N2N_VERSION_SHORT/g" \
-    > configure.ac
-
 rm -f config.h config.h.in *~ Makefile configure #*
 
 echo "Wait please..."

configure.seed → configure.ac

@@ -1,5 +1,5 @@
 odnl> Do not add anything above
-AC_INIT([edge],@N2N_VERSION_SHORT@)
+AC_INIT([edge], m4_esyscmd([cat VERSION | tr -d '\n']))
 dnl> Do not add anything above
 
 N2N_VERSION_SHORT=${PACKAGE_VERSION}

scripts/hack_fakeautoconf.sh

@@ -3,8 +3,10 @@
 # Specifically for windows, where installing autoconf looks suspiciously
 # like boiling the ocean.
 
+VERSION=$(cat VERSION)
+
 sed \
-    -e "s%@N2N_VERSION_SHORT@%FIXME%g" \
+    -e "s%@N2N_VERSION_SHORT@%$VERSION%g" \
     -e "s%@GIT_COMMITS@%FIXME%g" \
     -e "s%@CC@%gcc%g" \
     -e "s%@AR@%ar%g" \