1 files changed, 54 insertions, 0 deletions
diff --git a/cpp/autogen.sh b/cpp/autogen.sh
new file mode 100755
index 0000000..09396a8
--- /dev/null
+++ b/cpp/autogen.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+# Before using, you should figure out all the .m4 macros that your
+# configure.m4 script needs and make sure they exist in the m4/
+# directory.
+#
+# These are the files that this script might edit:
+#    aclocal.m4 configure Makefile.in src/config.h.in \
+#    depcomp config.guess config.sub install-sh missing mkinstalldirs \
+#    ltmain.sh
+#
+# Here's a command you can run to see what files aclocal will import:
+#  aclocal -I ../autoconf --output=- | sed -n 's/^m4_include..\([^]]*\).*/\1/p'
+
+set -ex
+rm -rf autom4te.cache
+
+trap 'rm -f aclocal.m4.tmp' EXIT
+
+# Returns the first binary in $* that exists, or the last arg, if none exists.
+WhichOf() {
+  for candidate in "$@"; do
+    if "$candidate" --version >/dev/null 2>&1; then
+      echo "$candidate"
+      return
+    fi
+  done
+  echo "$candidate"   # the last one in $@
+}
+
+# Use version 1.9 of aclocal and automake if available.
+ACLOCAL=`WhichOf aclocal-1.9 aclocal`
+AUTOMAKE=`WhichOf automake-1.9 automake`
+LIBTOOLIZE=`WhichOf glibtoolize libtoolize15 libtoolize14 libtoolize`
+
+# aclocal tries to overwrite aclocal.m4 even if the contents haven't
+# changed, which is annoying when the file is not open for edit (in
+# p4).  We work around this by writing to a temp file and just
+# updating the timestamp if the file hasn't change.
+"$ACLOCAL" --force -I m4 --output=aclocal.m4.tmp
+if cmp aclocal.m4.tmp aclocal.m4; then
+  touch aclocal.m4               # pretend that we regenerated the file
+  rm -f aclocal.m4.tmp
+else
+  mv aclocal.m4.tmp aclocal.m4   # we did set -e above, so we die if this fails
+fi
+
+grep -q '^[^#]*AC_PROG_LIBTOOL' configure.ac && "$LIBTOOLIZE" -c -f
+autoconf -f -W all,no-obsolete
+autoheader -f -W all
+"$AUTOMAKE" -a -c -f -W all
+
+rm -rf autom4te.cache
+exit 0