Makefile: fix race with 'make check'

installcheck calls $(MAKE) under the covers, which can race with the
current builds, and we can try installing something which is still
being built:

    collect2: fatal error: ld terminated with signal 11 [Segmentation fault], core dumped
    compilation terminated.
    /usr/bin/ld: can not read symbols: File truncated
    /usr/bin/ld: .eh_frame/.stab edit: File truncated
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.interp' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.note.ABI-tag' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.note.gnu.build-id' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.gnu.hash' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.dynsym' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.dynstr' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.gnu.version' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.gnu.version_r' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.rela.dyn' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.rela.plt' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.init' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.plt' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.plt.got' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.text' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.fini' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.rodata' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.eh_frame' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.init_array' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.fini_array' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.data.rel.ro' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.dynamic' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.got' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `.data' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `xautodata_json_command' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `xautodata_hooks' not in segment
    /usr/bin/ld: lightningd/lightningd: warning: allocated section `xautodata_type_to_string' not in segment
    Makefile:390: recipe for target 'lightningd/lightningd' failed
    make[1]: *** [lightningd/lightningd] Error 1
    make[1]: Leaving directory '/home/rusty/lightning'
    Makefile:553: recipe for target 'installcheck' failed
    make: *** [installcheck] Error 2

Signed-off-by: Rusty Russell <[email protected]>

Makefile

@@ -549,7 +549,7 @@ uninstall:
 	  rm -f $(DESTDIR)$(docdir)/`basename $$f`; \
 	done
 
-installcheck:
+installcheck: all-programs
 	@rm -rf testinstall || true
 	$(MAKE) DESTDIR=$$(pwd)/testinstall install
 	testinstall$(bindir)/lightningd --test-daemons-only --lightning-dir=testinstall