Makefile.am: fix portability issues

Commit a04f0b9613 made me notice that
there is a portability issue in curl's top-level Makefile.am.

$< can only be used in rules that deal with .SUFFIXES.  Its use
for general prerequisites is a GNU make extension.

$< could be replaced by $?, but I think in an autotools context,
something like this is better:

Bug: https://curl.se/mail/lib-2022-05/0024.html
Closes #8861
This commit is contained in:
Christian Weisgerber via curl-library 2022-05-19 15:45:07 +02:00 committed by Daniel Stenberg
parent dfa84a0450
commit 46f11a4cef
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@ -279,13 +279,13 @@ uninstall-hook:
(cd docs && $(MAKE) uninstall)
(cd docs/libcurl && $(MAKE) uninstall)
ca-bundle: scripts/mk-ca-bundle.pl
ca-bundle: $(srcdir)/scripts/mk-ca-bundle.pl
@echo "generating a fresh ca-bundle.crt"
@perl $< -b -l -u lib/ca-bundle.crt
@perl $(srcdir)/scripts/mk-ca-bundle.pl -b -l -u lib/ca-bundle.crt
ca-firefox: scripts/firefox-db2pem.sh
ca-firefox: $(srcdir)/scripts/firefox-db2pem.sh
@echo "generating a fresh ca-bundle.crt"
$< lib/ca-bundle.crt
$(srcdir)/scripts/firefox-db2pem.sh lib/ca-bundle.crt
checksrc:
(cd lib && $(MAKE) checksrc)