#
# Build time variable substitution for generated files.
#

# Shell support.

subst_shell_rules = "\
	s{^ADMINDIR=.*$$}{ADMINDIR='$(admindir)'}; \
	s{^BACKUPSDIR=.*$$}{BACKUPSDIR='$(backupsdir)'}; \
	s{^PKGDATADIR_DEFAULT=.*$$}{PKGDATADIR_DEFAULT='$(pkgdatadir)'}; \
	s{^version=['\"][^'\"]*[\"']}{version=\"$(PACKAGE_VERSION)\"}; \
	s{^TAR=.*$$}{TAR='$(TAR)'}; \
	"

subst_shell_filter = $(PERL) -p -e $(subst_shell_rules)
subst_shell_file = $(PERL) -i -p -e $(shell_subst_rules)

SUFFIXES += .sh

.sh: Makefile
	@test -d `dirname $@` || $(MKDIR_P) `dirname $@`
	$(AM_V_GEN) $(subst_shell_filter) <$< >$@
	$(AM_V_at) chmod +x $@

# Perl support.

subst_perl_rules = "\
	s{^\#!\s*/usr/bin/perl}{\#!$(PERL)}; \
	s{our \\\$$CONFDIR = .*;}{our \\\$$CONFDIR = '$(pkgconfdir)';}; \
	s{our \\\$$ADMINDIR = .*;}{our \\\$$ADMINDIR = '$(admindir)';}; \
	s{our \\\$$LIBDIR = .*;}{our \\\$$LIBDIR = '$(pkglibexecdir)';}; \
	s{our \\\$$DATADIR = .*;}{our \\\$$DATADIR = '$(pkgdatadir)';}; \
	s{our \\\$$PROGMAKE = .*;}{our \\\$$PROGMAKE = '$(MAKE)';}; \
	s{our \\\$$PROGTAR = .*;}{our \\\$$PROGTAR = '$(TAR)';}; \
	s{our \\\$$PROGPATCH = .*;}{our \\\$$PROGPATCH = '$(PATCH)';}; \
	s{our \\\$$PROGVERSION = .*;}{our \\\$$PROGVERSION = '$(PACKAGE_VERSION)';}; \
	"

subst_perl_filter = $(PERL) -p -e $(subst_perl_rules)
subst_perl_file = $(PERL) -i -p -e $(subst_perl_rules)

SUFFIXES += .pl

.pl: Makefile
	@test -d `dirname $@` || $(MKDIR_P) `dirname $@`
	$(AM_V_GEN) $(subst_perl_filter) <$< >$@
	$(AM_V_at) chmod +x $@