the normal autogen.sh run doesn't generate usage.h and other generated stuff on users machines. I pre-generate them here, where I know it works as I expect. This should fix issue#3, where on some linux machines generation of usage.h doesn't work which leads to a compiler error.

autogen.sh

@@ -1,71 +1,72 @@
 #!/bin/sh
 
-cat <<EOF > clean.sh
-#!/bin/sh
-find . -name Makefile -exec rm {} \;      > /dev/null 2>&1
-find . -name Makefile.in -exec rm {} \;      > /dev/null 2>&1
-find . -name "*~"     -exec rm {} \;      > /dev/null 2>&1
-find . -name config.h -exec rm {} \;      > /dev/null 2>&1
-find . -name "stamp*"  -exec rm {} \;      > /dev/null 2>&1
-find . -name .deps    -exec rm -rf {} \;      > /dev/null 2>&1
-find . -name .libs    -exec rm -rf {} \;      > /dev/null 2>&1
-find . -name .o    -exec rm -rf {} \;      > /dev/null 2>&1
-find . -name .lo    -exec rm -rf {} \;      > /dev/null 2>&1
+mode=config
 
-rm -rf aclocal.m4 libtool man/pcp1.1 configure config.* config autom4te.cache tests/test* tests/v* tests/stresstest/* libpcp/libpcp1.pc
-rm clean.sh
-EOF
-
-chmod 700 clean.sh
-
-# generate the install include file
-(echo "#ifndef _HAVE_PCP"; echo "#define _HAVE_PCP"; echo) > include/pcp.h
-(echo "#ifdef __cplusplus"; echo "extern \"C\" {"; echo "#endif"; echo) >> include/pcp.h
-echo "#include \"pcp/config.h\"" >> include/pcp.h
-
-ls include/pcp/*.h | sed 's#include/##' | while read include; do
-  echo "#include \"$include\"" >> include/pcp.h
-done
-
-(echo "#ifdef __cplusplus"; echo "}"; echo "#endif"; echo) >> include/pcp.h
-(echo; echo "#endif") >> include/pcp.h
+case $1 in
+    clean)
+	mode=clean
+	;;
+    gen)
+	mode=gen
+	;;
+    -h|--help|help|\?)
+	echo "Usage: $0 [clean|gen]"
+	exit 1
+	;;
+esac
 
 
-# generate the version file
-maj=`egrep "#define PCP_VERSION_MAJOR" include/pcp/version.h | awk '{print $3}'`
-min=`egrep "#define PCP_VERSION_MINOR" include/pcp/version.h | awk '{print $3}'`
-pat=`egrep "#define PCP_VERSION_PATCH" include/pcp/version.h | awk '{print $3}'`
-echo -n "$maj.$min.$pat" > VERSION
+if test "$mode" = "gen"; then
+    # generate the install include file
+    (echo "#ifndef _HAVE_PCP"; echo "#define _HAVE_PCP"; echo) > include/pcp.h
+    (echo "#ifdef __cplusplus"; echo "extern \"C\" {"; echo "#endif"; echo) >> include/pcp.h
+    echo "#include \"pcp/config.h\"" >> include/pcp.h
 
-# generate the manpage
-echo "=head1 NAME
+    ls include/pcp/*.h | sed 's#include/##' | while read include; do
+	echo "#include \"$include\"" >> include/pcp.h
+    done
+
+    (echo "#ifdef __cplusplus"; echo "}"; echo "#endif"; echo) >> include/pcp.h
+    (echo; echo "#endif") >> include/pcp.h
+
+
+    # generate the version file
+    maj=`egrep "#define PCP_VERSION_MAJOR" include/pcp/version.h | awk '{print $3}'`
+    min=`egrep "#define PCP_VERSION_MINOR" include/pcp/version.h | awk '{print $3}'`
+    pat=`egrep "#define PCP_VERSION_PATCH" include/pcp/version.h | awk '{print $3}'`
+    echo -n "$maj.$min.$pat" > VERSION
+
+    # generate the manpage
+    echo "=head1 NAME
 
 Pretty Curved Privacy - File encryption using eliptic curve cryptography.
 
 =head1 SYNOPSIS
 
 " > man/pcp1.pod
-cat src/usage.txt | sed "s/^/  /g" >> man/pcp1.pod
-cat man/options.pod >> man/pcp1.pod
-cat man/pcp.pod >> man/pcp1.pod
-cat man/details.pod >> man/pcp1.pod
-cat man/footer.pod >> man/pcp1.pod
+    cat src/usage.txt | sed "s/^/  /g" >> man/pcp1.pod
+    cat man/options.pod >> man/pcp1.pod
+    cat man/pcp.pod >> man/pcp1.pod
+    cat man/details.pod >> man/pcp1.pod
+    cat man/footer.pod >> man/pcp1.pod
 
-pod2man -r "PCP `cat VERSION`" -c "USER CONTRIBUTED DOCUMENTATION" man/pcp1.pod > man/pcp1.1
+    pod2man -r "PCP `cat VERSION`" -c "USER CONTRIBUTED DOCUMENTATION" man/pcp1.pod > man/pcp1.1
 
-# generate the top level readme
-cat man/pcp.pod man/install.pod man/footer.pod > README.pod
-pod2text README.pod > README.txt
+    # generate the top level readme
+    cat man/pcp.pod man/install.pod man/footer.pod > README.pod
+    pod2text README.pod > README.txt
 
-# generate usage.h
-(cd src && ./usage.sh)
+    # generate usage.h
+    (cd src && ./usage.sh)
 
-clean=$1
+    exit
+fi
 
-touch README
 
-if test -z "$clean"; then
+
+if test "$mode" = "config"; then
   mkdir -p ./config
+  touch README
   
   if ! command -v libtool >/dev/null 2>&1; then
       echo "could not find libtool." 1>&2
@@ -80,6 +81,29 @@ if test -z "$clean"; then
   autoreconf --install --force --verbose -I config
 fi
 
+
+#
+# normal autogen stuff
+
+cat <<EOF > clean.sh
+#!/bin/sh
+find . -name Makefile    -exec rm {} \;      > /dev/null 2>&1
+find . -name Makefile.in -exec rm {} \;      > /dev/null 2>&1
+find . -name "*~"        -exec rm {} \;      > /dev/null 2>&1
+find . -name config.h    -exec rm {} \;      > /dev/null 2>&1
+find . -name "stamp*"    -exec rm {} \;      > /dev/null 2>&1
+find . -name .deps       -exec rm -rf {} \;  > /dev/null 2>&1
+find . -name .libs       -exec rm -rf {} \;  > /dev/null 2>&1
+find . -name .o          -exec rm -rf {} \;  > /dev/null 2>&1
+find . -name .lo         -exec rm -rf {} \;  > /dev/null 2>&1
+
+rm -rf aclocal.m4 libtool configure config.* config autom4te.cache tests/test* tests/v* tests/stresstest/* libpcp/libpcp1.pc
+rm clean.sh
+EOF
+
+chmod 700 clean.sh
+
+
 rm -rf README include/pcp/config.h.in~ libpcp/stamp-h1 autom4te.cache
 
 sleep 1

include/pcp.h

@@ -8,7 +8,6 @@ extern "C" {
 #include "pcp/config.h"
 #include "pcp/base85.h"
 #include "pcp/buffer.h"
-#include "pcp/config.h"
 #include "pcp/context.h"
 #include "pcp/crypto.h"
 #include "pcp/defines.h"