New templated configure

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/tools/gen-configure.el b/tools/gen-configure.el
new file mode 100755
index 0000000..2017dc2
--- /dev/null
+++ b/tools/gen-configure.el
@@ -0,0 +1,31 @@
+#!/command/execlineb -S0
+
+# For dev use only. Don't run this, it overwrites your configure.
+
+# The quoting interactions in sed and sh make it impossible to get
+# such a simple thing done. It's amazing how bad traditional Unix is.
+
+backtick -E TEMPLATE { redirfd -r 0 tools/configure.template s6-cat }
+s6-envdir -Lf package/configure-snippets
+multisubstitute
+{
+  importas -uS configure_help_install
+  importas -uS configure_help_dependencies
+  importas -uS configure_help_options
+  importas -uS configure_init_vars
+  importas -uS configure_case_lines
+  importas -uS configure_expand_dirs
+  importas -uS configure_slashpackage_other
+  importas -uS configure_generate_make
+  importas -uS configure_generate_configh
+}
+
+if
+{
+  heredoc 0 ${TEMPLATE}
+  redirfd -w 1 configure.new
+  s6-cat
+}
+
+if { s6-chmod 0755 configure.new }
+s6-rename configure.new configure