Upstream status: https://github.com/orangeduck/mpc/pull/160

diff --git a/Makefile b/Makefile
index 7719acc..fe798c5 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ EXAMPLESEXE = $(EXAMPLES:.c=)
 
 .PHONY: all check clean libs $(DIST)/$(PROJ).pc
 
-all: $(EXAMPLESEXE) check
+all: $(EXAMPLESEXE) check libs $(DIST)/$(PROJ).pc
 
 $(DIST):
 	$(MKDIR) $(DIST)
@@ -65,7 +65,8 @@ install: all
 	install -m755 -t $(DESTDIR)$(PREFIX)/lib $(DIST)/lib*
 	install -m644 -t $(DESTDIR)$(PREFIX)/share/$(PROJ) $(PROJ).c $(PROJ).h
 	install -m644 $(PROJ).h $(DESTDIR)$(PREFIX)/include/$(PROJ).h
-	install -m644 $(PROJ).pc $(DESTDIR)$(PREFIX)/lib/pkgconfig/$(PROJ).pc
+	install -m644 $(DIST)/$(PROJ).pc \
+	  $(DESTDIR)$(PREFIX)/lib/pkgconfig/$(PROJ).pc
 
 uninstall:
 	rm -rf -- \
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<div class='path'>path: <a href='/guix/log/?id=875cc9e31f7e3cd76cfc513df0135f4ffa79930e'>root</a>/<a href='/guix/log/gnu?id=875cc9e31f7e3cd76cfc513df0135f4ffa79930e'>gnu</a>/<a href='/guix/log/gnu/tests.scm?id=875cc9e31f7e3cd76cfc513df0135f4ffa79930e'>tests.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests.scm?id=875cc9e31f7e3cd76cfc513df0135f4ffa79930e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-11-05 23:23:23 +0100'>2023-11-05</span></td><td><a href='/guix/commit/gnu/tests.scm?id=0c695bbf8dbd5a5c1224f331a78b6316bc16e4d1'>tests: Honor system and target when lowering &lt;system-test&gt;.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/tests.scm (compile-system-test): Wrap ‘system-test-value’ call in
‘mparameterize’.

Change-Id: I4be28913a86f43059b0886ad2fcf81a9c699b730
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/gnu/tests.scm?id=a09c7da8f8d8e732f969cf0a09aaa78f87032ab1'>tests: Fork and exec a new Guile for the marionette REPL.</a><span class='msg-avail'>...<span class='msg-tooltip'>By merely forking PID 1, details from PID 1 (shepherd) would leak into
the marionette process, such as the set of modules in scope and state
inherited from the shepherd process (&lt;service&gt; instances, fibers,
etc.).  Running a fresh Guile instance avoids that.

* gnu/tests.scm (marionette-program): New procedure.
(marionette-shepherd-service): Change 'start' to use
'make-forkexec-constructor', and run the result of 'marionette-program'.
</span></span></td><td>Ludovic Courtès</td></tr>